IGFRI Annual Report 1984 - Indian Grassland and Fodder Research ...
IGFRI Annual Report 1984 - Indian Grassland and Fodder Research ...
IGFRI Annual Report 1984 - Indian Grassland and Fodder Research ...
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¥ICAR '<br />
1fJ~3fIJ<br />
<strong>IGFRI</strong>'<br />
ANNUAL REPORT<br />
<strong>1984</strong><br />
INDIAN GRASSLAND AND FODD,ER RESEARCH INSTITUTE<br />
JHANSI-284003 (U. P.) INDIA
September, 1986<br />
Edited by :<br />
Panjab Singh<br />
Bhag Mal<br />
P. S. Pathak<br />
Menhi La}<br />
P. Kumar<br />
A. K. Srivastava<br />
Published by the Director, <strong>IGFRI</strong>, Jhansi-284003 <strong>and</strong> Printed by Adarsh Paper']<br />
Agrawal Press Jhansi
CONTENTS<br />
1, General 1<br />
2. <strong>Research</strong> Highlights 11<br />
3. Division of Plant Improvement 23<br />
4. Division of Agronomy 67<br />
5. Division of Soil Science 97<br />
6. Division of <strong>Grassl<strong>and</strong></strong> Management 119<br />
7. Division of Agrosilvipasture 141<br />
8. Division of Seed Technology 163<br />
9. Division of plant Animal Relationship 181<br />
10. Division of Agricultural Engineering 219<br />
11, Division of Rural Economics & Biometrics 229<br />
12. Division of Extension & Trainning 237<br />
13. Sub-Station, Manasbal (J & K) 239<br />
14. Publications 245<br />
Appendix I - List of Staff<br />
Appendix II - Statement of reserved vacancies
PREFACE<br />
Forage production is the backbone of the livestock industry <strong>and</strong> therefore green nutritious<br />
forages st<strong>and</strong> not only on· the forefront of economic production of animal products like<br />
milk, meat, egg <strong>and</strong> wool, but also support the maintenance of draught power in this era of<br />
energy crisis. The widening gap between the supply <strong>and</strong> dem<strong>and</strong> of green <strong>and</strong> dry fodder as<br />
well as concentrates needs to be bridged.<br />
. The <strong>Indian</strong> <strong>Grassl<strong>and</strong></strong> <strong>and</strong> <strong>Fodder</strong> <strong>Research</strong> Institute, a central organisation, has the<br />
major m<strong>and</strong>ate'[ of developing forage <strong>and</strong> feed resources to achieve the goal of feeding such a<br />
huge livestock wealth in the country. The Institute is engaged in basic <strong>and</strong> applied research on<br />
all facets of fodder crops, grasses <strong>and</strong> grassl<strong>and</strong>s for the development of suitable technologies<br />
ahd their transfer through organised training programmes, field demonstrations <strong>and</strong> other<br />
extension methods. It is in this context that mission oriented research efforts are being made<br />
for the development of economically feasible forage production systems suitable for different<br />
farming situations under various agro-climatic zones of the country.<br />
The present report embodies an account of research results emanated from multidisciplinary<br />
approach in the field of forage production <strong>and</strong> utilization during the year <strong>1984</strong>.<br />
It is expected that the information contained herein will be of immense utility to all those<br />
engaged in the field of forage production <strong>and</strong> utilization.<br />
I express my heartiest thanks to the members of publication committee for compilation<br />
<strong>and</strong> editing, Shri R. B. Mathur for helping in proof reading <strong>and</strong> Shri Munna Singh for<br />
preparation of cover design.<br />
September 15, 1986<br />
( PANJAB SINGH)<br />
Director
GENERAL<br />
INTRODUCTION<br />
Livestock continues to be the back bone of <strong>Indian</strong> Agriculture, characterised by mixed<br />
farming system involving crop <strong>and</strong> animal enterprises. Feeding of livestock judiciously with<br />
nutritious forages is very crucial for ensuring optimum level of milk, meat, wool <strong>and</strong> egg<br />
production. One of the major factors that limits the expected level of production is the wide<br />
gap between the requirement <strong>and</strong> availability for feeds/forages. Moreover, the increasing<br />
competition between human <strong>and</strong> livestock population for needed nutrients is also causing a<br />
great concern owing to l<strong>and</strong> <strong>and</strong> input constraints. Thus, feeding of huge livestock wealth<br />
warrants Concerted efforts to develop feed <strong>and</strong> fodder resources in the country.<br />
The importance of forages in feeding the livestock, the ever increasing gap between<br />
supply <strong>and</strong> dem<strong>and</strong>, the diversity <strong>and</strong> complexity of the problems <strong>and</strong> their impact on agricultural<br />
economy of the country led to the establishment of the <strong>Indian</strong> <strong>Grassl<strong>and</strong></strong> <strong>and</strong><br />
<strong>Fodder</strong> <strong>Research</strong> Institute, Jhansi towards the end of Third Five Year Plan in 1962 by the<br />
Government of India <strong>and</strong> administered by the <strong>Indian</strong> Council of Agricultural <strong>Research</strong>, New<br />
Delhi from April, 1966.<br />
OBJECTIVES<br />
In order to discharge the responsibility of national m<strong>and</strong>ate on development <strong>and</strong><br />
utilization of forage <strong>and</strong> feed resources, the institute has the following objectives;<br />
To carryout research, both of basic <strong>and</strong> applied nature on grasses, grassl<strong>and</strong>s <strong>and</strong><br />
fodder crops <strong>and</strong> to collect, coordinate <strong>and</strong> collaborate research in the country by centralising<br />
direction/operation <strong>and</strong> superintendence.<br />
To evolve high yielding, fertilizer responsive, disease <strong>and</strong> pest resistant <strong>and</strong> superior<br />
quality forage crop varieties suited to different farming systems in various agro-climatic
egions of the country by the use of modern techniques of plant breeding <strong>and</strong> through the<br />
application of research in other congnate disciplines.<br />
To develop agro-techniques for maximising forage production in irrigated, rainfed<br />
<strong>and</strong> other problem areas by evolving appropriate cultural-cum-fertilizer practices, intensive<br />
crop rotations, soil-water management strategies, systems analysis <strong>and</strong> crop modelling <strong>and</strong><br />
agro-forestry including ley farming approaches.<br />
To carry out studies on soil survey <strong>and</strong> l<strong>and</strong> use, physiochemical characterization of<br />
forage growing areas, soil fertility <strong>and</strong> plant nutrition, biological nitrogen fixation <strong>and</strong> amelioration<br />
of problem soils for forage production.<br />
To undertake investigations on natural grassl<strong>and</strong>sjdcgraded rangel<strong>and</strong>s for Improving<br />
their productivity through ecological principles, species combinations <strong>and</strong> establishment management<br />
techniques under different grass covers of the country.<br />
To develop <strong>and</strong> evaluate various cropjtree species combinations for silvi-pasture,<br />
horti-pasture <strong>and</strong> agroforestry systems for enhancing forage, fuel <strong>and</strong> timber production<br />
from marginal <strong>and</strong> submarginal wastel<strong>and</strong>s under different agro-clirnatic regions of the<br />
country.<br />
To couduct basic <strong>and</strong> applied research on nutritional evaluation of cultivated foragel<br />
pasture species including non-conventional plants <strong>and</strong> crop residues, their conservation,<br />
fortification <strong>and</strong> ultization for optimum animal production.<br />
To cond. ct research on all aspects of forage seed production <strong>and</strong> devise suitable control<br />
measures for protecting .secd durirg storage from disease <strong>and</strong> pests.<br />
fodders <strong>and</strong> grass<br />
To study various facets of the problems of the weeds in cultivated<br />
l<strong>and</strong>s <strong>and</strong> evolve economic measures for their control.<br />
To design <strong>and</strong> fabricate efficient, low cost, labour saving farm machinery <strong>and</strong> implements<br />
from indigenous materials to meet the diverse needs with special reference to forage<br />
cultivation on small farm holdings.<br />
To undertake investgations on statistical designs, sampling techniques <strong>and</strong> economicanalysis<br />
related to herbage <strong>and</strong> seed production in forage crops! systems.<br />
To develop appropriate extension techniques for transfer of proven technology, get feed<br />
back information for further investigition <strong>and</strong> to disseminate knowledge on the subject<br />
thrcugh organising training programmes.<br />
( 2 )
ORGANISATION<br />
The icstitute located at Jhansi (780 35' E longitude, 250 26' N latitude <strong>and</strong> 275 m<br />
altitude) about lO km from the town on Jhansi-Gwalior road iseurrently organised .into eleven<br />
scientific Divisions, viz. Plant Improvement, Agronomy <strong>and</strong> System Synthesis, Soil Science,<br />
<strong>Grassl<strong>and</strong></strong> Management, Agro-silvipasture, Seed Technology,Plant Animal Relationship, Weed<br />
Ecology <strong>and</strong> Control, Agricultural Engineering <strong>and</strong> Post-Harvest Technology, Rural Economics<br />
<strong>and</strong> Biometrics <strong>and</strong> Extension <strong>and</strong> Training <strong>and</strong> nine Central Units Viz. Administration,<br />
Audit <strong>and</strong> Accounts, Estate, Farm, Library, Technical Cell, Photography<strong>and</strong> Arts, Central<br />
Laboratry Services <strong>and</strong> <strong>Research</strong> <strong>and</strong> Development Cell. The Institute is the headquarter<br />
of All India Coordinated Project for <strong>Research</strong> on Forage Crops having its main <strong>and</strong> sub centres<br />
in various parts of the country. Besides, Institute also houses research centres of All India<br />
Coordinated Project on Dryl<strong>and</strong> Agriculture, Agroforestry, Under-utilized <strong>and</strong> under-exploited<br />
Plants, Prototype Testing <strong>and</strong> Feasibility <strong>and</strong> National Seed Project. The Institute has<br />
also research collaboration at International level through two International projects viz.<br />
IDRC-<strong>IGFRI</strong> Silvipasture Operational <strong>Research</strong> Project <strong>and</strong> PL-480 Project on Weed management<br />
<strong>Research</strong> III Food-<strong>Fodder</strong> Production System.<br />
For conducting researches for the higher altitude temperate, alpine <strong>and</strong> hilly regions<br />
extending over the State of J & K, Himachal Pradesh.Uttar Pradesh, West Bengal <strong>and</strong> North<br />
Eastern Regions of the country, the Institute has established its regional station at Manasbal<br />
Snfapura (J&K).<br />
RESEARCH COLLABORATION<br />
The Institute with its pre-eminance on the subject <strong>and</strong> national m<strong>and</strong>ate coordinates<br />
the research work on grassl<strong>and</strong> <strong>and</strong> fodder production <strong>and</strong> also collaborates at national <strong>and</strong><br />
international level.<br />
A. National level :<br />
All India Coordinated <strong>Research</strong> Project 03 Forage<br />
Crops.<br />
The Project is charged with the responsibility of formulating technical programme <strong>and</strong><br />
monitoring research on all aspects of forage crops at different centres i~ various agro-climatic<br />
( 3
egions of the country. Through this Project, the Institute plays a leading role in fostering<br />
olose cooperation with various State Agricultural Universities <strong>and</strong> <strong>Research</strong> Institutes.<br />
ii<br />
National seed project (NSP)<br />
The World Bank aided National seed project located at the Instittute is responsible for<br />
production of breeder seed of released/notified forage crop varieties.<br />
iii<br />
AICRP on Dryl<strong>and</strong> Agriculture<br />
The centre of All India Coordinated <strong>Research</strong> Project on Dryl<strong>and</strong> Agriculture is<br />
engaged in research work for evolving suitable integrated crop production strategy for drought<br />
prone areas of Bundelkh<strong>and</strong> based on watershed approach.<br />
iv<br />
All India 'conrdinated <strong>Research</strong> Project on Agro-Forestry,<br />
The centre of this project functions with emphasis on collection <strong>and</strong> evaluation of<br />
promising fuel, fodder <strong>and</strong> small timber producing speciesjcultivars with a view to work out<br />
suitable system for different situations.<br />
v<br />
AU India Coordinated <strong>Research</strong> Project on under-exploited <strong>and</strong> under utilized plants.<br />
The centre started functioning at the Institute during this year for collection, evaluation,<br />
multiplication <strong>and</strong> testing of under-exploited <strong>and</strong> under-utilized plant species with<br />
special reference to su-babool for various habitats <strong>and</strong> farming systems.<br />
vi<br />
AICRP on Development, Testing <strong>and</strong> prototype production of Farm Implements <strong>and</strong><br />
Machinery.<br />
The centre of this project is in operation at the Institute for developing <strong>and</strong> testing<br />
the possibility of Using improved '!gricultural implements <strong>and</strong> farm machinery in forage based<br />
farming systems <strong>and</strong> educating the farmers on usefulness, h<strong>and</strong>ling <strong>and</strong> maintenance of improved<br />
implements.<br />
vii<br />
Watershed Management<br />
The centre under the technical control of <strong>IGFRI</strong> for water shed Management in Bangra<br />
4
area of Jhansi district has already been initiated. The watershed management planning for<br />
this area has been drafted <strong>and</strong> being implemented.<br />
B. International level<br />
IDRC-<strong>IGFRI</strong> Silvipasture Operational <strong>Research</strong> Project.<br />
The Government of Canada aided project is in operation at the Institute specifically<br />
for Bundelkh<strong>and</strong> region with the objective of increasing the forage <strong>and</strong> tree crop productivity<br />
on degraded l<strong>and</strong>s in the region.<br />
ii<br />
PL-480 project on Weed Management <strong>Research</strong> in Food-<strong>Fodder</strong> Production S,stem.<br />
This project operates at the Institute with the major objectives of working out integrated<br />
weed management practices for food <strong>and</strong> fodder crop production system, evaluating<br />
herbicide residue in plants <strong>and</strong> soil <strong>and</strong> invesrigmng the influence of these practices on the<br />
quality of produce.<br />
TRAINING AND EDUCATION<br />
Training:<br />
There is a comprehensive training programme at the Institute on all aspects of forage<br />
production <strong>and</strong> its utilization. A nine month diploma course was initiated during 1976 for<br />
inservice personnel. During the year, diploma was awarded to 11 successful c<strong>and</strong>idates.<br />
The Institute also offers short term refresher training courses for the benefit of different<br />
Govt. departments, corporations <strong>and</strong> voluntary organisation. Technology appraisal trainings<br />
were also organised for farmers, village level workers, forest guardsjin forage crop production<br />
<strong>and</strong> raising of fuel/fodder/fruit species.<br />
Education:<br />
The Instiute was recognised centre of research under the auspices of Jiwaji University,<br />
Gwalior, Bundelkh<strong>and</strong> Univetsity, Jhansi <strong>and</strong> Agra University, Agra for award of Ph. D.<br />
( 5
degree in Botany, Agronomy, Chemistry ,<strong>and</strong> Geography, Four c<strong>and</strong>idates were awarded Ph.D<br />
degree during the year. . , , .,<br />
EXTENSION<br />
Usar L<strong>and</strong> Development (Amethi-Ral Barellly)<br />
Under Social Forestry, the desire was expressed by' the U. P. State' for providing<br />
technical know- how for pasture in Usar l<strong>and</strong> in eastern Zone. A team visited this area <strong>and</strong><br />
certain recommendations were made, especially, para grass <strong>and</strong> Dicnrostecbv e were supplied.<br />
These Were planted for twin purposes of reducing the soil pH <strong>and</strong> also obtaining the animal<br />
feed under the social forestry plantations in Usar l<strong>and</strong>, .<br />
Outreach programme<br />
Rewari (Haryana): Outreach programmes in Rcwari <strong>and</strong> Gurgvon area of Haryana were<br />
further strengthened by ;ising <strong>and</strong> supplying su-b~bool saplings, <strong>and</strong> seed material of<br />
fodder turnips, berseernv oats <strong>and</strong> wintermaize,<br />
ii<br />
iii<br />
iv<br />
Shivpuri <strong>and</strong> Guna (M.P.) : Farming system with integration of su-babool <strong>and</strong> berseem<br />
followed by fodder bajra, sorghum in farmeres field has been demonstrated in that<br />
region.<br />
Durg (M. P.) : Success has been achieved in establishmmt of su-babool plantations on<br />
hundreds of farmer's fields under the auspices of Regional Farmer's Farm at Durg<br />
(M.P.). A general awareness with regard to su-babool farming has been created. Similar<br />
impact has been made in Guntur district of Andhra Pradesh.<br />
Hamirpur (V.P,) : Twenty block each of 10 to 20 ha area spread out in the entire district<br />
in various Villages have been established with Stv/o through district authorities.<br />
A remarkable success has bzen aC:liev~d in e,:abl:s:l:ng th zs; <strong>and</strong> locrl frrrning community<br />
is enthusiastic to adopt <strong>and</strong> spread thi~ i.1 their areas.<br />
I ...ab to La.HI programme:<br />
The 'Lab to L<strong>and</strong> I programm- is continuing with 230 farm families in SIX villages from<br />
thJce blocks of Jhansi (U. P) <strong>and</strong> Datia (M. P.) districts.' Under this programme, the Institute<br />
has taken up improved crop produc.ion demonstrations, energy plantations of fuel-fodder<br />
( 6 j
species, planting of seedlings of hortipasroral species <strong>and</strong> 'conducting large scale fodder adaptive<br />
trials to aqaint the participating farm families with the latest fodder production technology<br />
under various systems.<br />
SEMINARS/SYMPOSIA/WORKSHOPS<br />
During the year <strong>1984</strong>, following workshopsjscminars/symposia were organised at the<br />
Institute.<br />
II<br />
iii<br />
iv<br />
v<br />
Group meeting of All India Coordinated<br />
<strong>Research</strong> Project on Agro·forestry.<br />
Group meeting of All India Coordinated<br />
<strong>Research</strong> Project on Forage Crops.<br />
WOlksh )p-cu'n-Seminar on fodder production<br />
technology under irrigated <strong>and</strong> rainfed conditions.<br />
Xth Annuil Workshop of AII India Co ordinated<br />
<strong>Research</strong> Project on Forage Crops.<br />
Technology Appraisal Seminar to Nehr.i Yo~t-h<br />
Centre <strong>and</strong> Adult Education Department.<br />
Jhansi-Allahabad.<br />
April 3-4, 1934<br />
April'4-5, <strong>1984</strong><br />
August 22-29, <strong>1984</strong><br />
September 23·-25, <strong>1984</strong><br />
November 28 to<br />
December 8, <strong>1984</strong><br />
STAFF<br />
The Institute had a sanctioned strength of 237 s .ientists, 148 technical; 92 administrative<br />
178 supporting <strong>and</strong> 38 auxilIary staff. The staff position as on 31.12.84 has been given in<br />
A ppen dix-l.<br />
.. \.<br />
FINANCE<br />
During the year <strong>1984</strong>-85, the Instlut; 1115 u ilizd a budget of Rs. 100.77 lakhs of<br />
which Rs. 21.51 lakhs was under plan <strong>and</strong> Rs. 79.26 lakhs under non-plan. The capital expenditure<br />
was Rs, 0.74 lakhs. A revenue of Rs. 2.89 bl;:~lS W.lS realised from the sale of farm<br />
produce.<br />
( 7 )
FACILITIES<br />
Experimental Farm<br />
The Institute has a total l<strong>and</strong> area of 574 hectares including campus. The experimental<br />
farm is divided into blocks earmarked for different divisions. Tar road was completed from<br />
one to the other end at the farm. Additional irrigationa\ facilities were created, although a<br />
seasonal canal runs across the farm. The farm has varying topography <strong>and</strong> represents rsker,<br />
parwa <strong>and</strong> kabar types of Bundelkh<strong>and</strong> soils. The constructon of one more field laboratory has<br />
been completed this year to provide building <strong>and</strong> laboratory facilities at the farm. The electricity<br />
line has also been extended throughout the farm. The Institute is also having a farmer's<br />
demonstration block.<br />
ii<br />
Administrative Wing <strong>and</strong> <strong>Research</strong> Laboratories<br />
The building complex comprises Director's office, conference hall <strong>and</strong> 'committee<br />
rooms with telex <strong>and</strong> telephone facilities. There are five laboratory wings with a total<br />
of 25 laboratories <strong>and</strong> 51 sitting rooms epui pped with modern instruments, fixtures <strong>and</strong> furnitures<br />
Since the Institute has multidisciplinary divisions a separate central laboratory provides<br />
centralised instrumentation services <strong>and</strong> Central Analytical Laboratory undertakes chemical<br />
analysis. Modern outfits for cartography <strong>and</strong> audio-visual aids have been provided. Two<br />
powergenarating sets were installed during the year to maintain the regular supply of electricity<br />
in <strong>Research</strong> Laboratories. Attached with the laboratories, a series of net-houses <strong>and</strong> glass<br />
houses have been constructed mainly for conducting some basic research.<br />
iii<br />
Library<br />
Due to exp<strong>and</strong>ed activities in the field of research, extension <strong>and</strong> training, the Corresponding<br />
expansion in the library has been made. About 30 (Scientific-Cum Other) disciplines<br />
have been covered for references on whioh literature was obtained within the country <strong>and</strong><br />
abroad. During this year, library has procured a total of 4626 technical books, 100 <strong>Indian</strong><br />
journals for the benefit of the scientists. The library was further enriched by adding 250 reprin-s<br />
of scientific papers. The library is also having: micro-film reading fi.cility.<br />
lv<br />
Photography <strong>and</strong> Art Unit.<br />
The photography<br />
<strong>and</strong> art unit is functioning at the Institute to provide facilities for<br />
8
photography <strong>and</strong> slides with respect to the field <strong>and</strong> <strong>and</strong> laboratory research work. The art<br />
section prepares requisite charts, maps, etc, for scientific purpose.<br />
v<br />
Scientists Home <strong>and</strong> Post Graduate Rosh'l.<br />
A 13 room hostel with dining room reading hall exists at the campus for trainees A 5<br />
suit scientists home is also attached with it especially for scientists <strong>and</strong> other dignatories visi-<br />
9<br />
ting the Institute. .<br />
The residential complex known as krishi nagar consists of 132 quarters of various categories<br />
in the walled area of the campus. These quarters are provided with modern living<br />
amenities.<br />
•<br />
vii<br />
Community Centre<br />
A community centre has been established in the residential area with necessary infrastructures<br />
for indoor games <strong>and</strong> cultural activities in order to provide a better social life to<br />
the residents.<br />
viii<br />
Medical Unit<br />
The medical unit is located in the premises of the Institute with a Junior Medical<br />
Officer <strong>and</strong> other auxiliary staff to provide health care to the staff <strong>and</strong> their families.<br />
ix<br />
Primary School<br />
There is a Govt. aided primary school in the campus to cater to the needs 'of children<br />
educaton upto primary level to the residents of Krishi Nagar as well as to the neighbouring<br />
villages.<br />
WEATHER<br />
During the year <strong>1984</strong>, total rainfall of 839.4mm WaS received in 45 rainy days (table 1)<br />
The year was, however, characterised by late onset <strong>and</strong> very early (4th week of August)<br />
withdrawal of monsoon, Thus, the season for kneri] crops was limited to a period of seven<br />
weeks only. Most of the crops, particularly seed crops, were under severe moisture stress <strong>and</strong><br />
therefore, the yields were affected adversely. Absence of rains from September to December<br />
also caused moisture stress to unirrigated winter crops. The year experienced extremely hot<br />
summer <strong>and</strong> the maximum temperature recorded on a single day during Junewas 500C.<br />
( 9 )
.;::•• ;'c", :.... 'TaBle....:!.; Rain.fall•.temnerarure.anrl re'}ati.ve humiditvdurins <strong>1984</strong><br />
10 ')
RESEARCH HIGHLIGHTS<br />
DIVISION OF PLANT IMPROVEMENT<br />
1. A total of 1305 new accessions of different spe .ies of grasses, legumes <strong>and</strong> other fodder<br />
crops, viz., guar (744), moth bean (224), Melilot us species (24), Macropt ilium lat hyroides<br />
(9), Indigofera species (42), Desmodium species (73), Clitoria species (57),<br />
Atylosia species (63), Phaseolus species (24), Stylosanthes species (4), Amaranthus<br />
species (7), Conaoalia species (2) <strong>and</strong> grasses (12) collected from indigenous <strong>and</strong> exotic<br />
sources were evaluated for different fodder attributes. These were classified into<br />
different group <strong>and</strong> the cultivars with specific desirable attributes were identified for<br />
further studies.<br />
2. In Sorghum a newly developed strain JHS-833 giving 12% higher green yield <strong>and</strong> 10%<br />
higher dry matter yield than SSG 59-3 was observed promising. Transgressive segregation<br />
pattern observed in F 2 generation of a 3 way cross (296 A X PC-40) X IS 2887<br />
revealed the possibility of recovering desirable plant types. Two F 1 hybrids 2219 A y.<br />
AS-l <strong>and</strong> 2219 A X PB 8104-1 exhibiting high positive heterosis <strong>and</strong> hererobeltiosis<br />
for forage yield traits were identified promising,<br />
~. Three newly developed strains of oats, JHO 824, JHO 825, <strong>and</strong> JHO 826 were identified<br />
for testing under An India Coordinated trials. Seven strains, viz., JH0801, 810, 813,<br />
816, 817, 822 <strong>and</strong> 823 were identified promising for single cut <strong>and</strong> five strains,. viz.,<br />
JHO 801, 813, 816, 817 <strong>and</strong> 822 for two cut system based on intial evaluation trials<br />
under the Coordinated Forage Project. Amphiploid progenies of A sativa X A. magna<br />
crosses were subjected to back crossing <strong>and</strong> selfing to recover desirable types combining<br />
traits of both the species.<br />
4. In bajra, JFB 817 <strong>and</strong> JFB 824 were observed to be the best in final yield evaluation<br />
trial. Four new populations were subjected to mass selection <strong>and</strong> improved as JFB 841<br />
II
842, 843 <strong>and</strong> 844. A sweet stalk population JFB 845 was synthesized. SAP 8-1 was<br />
observed to be true breeding for reduced protogyny. A vigorous, leafy brachytic dwarf<br />
segregant was isolated from F 2 progeny. Thirty three progenies of BC 2 selfed generatioQ<br />
of the cross P. americanum X P. orientale wer,e evaluated.<br />
5. F 2 generation of two crosses 42-1 x IL 52 <strong>and</strong> 42-1 X 454 cowpea was raised <strong>and</strong><br />
promising individual plants were selected for earliness <strong>and</strong> erect growth habit. In berseem,<br />
the yield superiority of CPC-3, JHB 44, 64, 137 under normal spacing <strong>and</strong> of<br />
JHB 48,171,247 <strong>and</strong> 801 under wider spacing revealed the presence of genotype X environment<br />
interaction. The multiple regression analysis indicated that simultaneous selec-<br />
tion for plant height, number of branches per plants <strong>and</strong> number of leaves per plant<br />
was effective for improvement in dry matter yield,<br />
6. Based on dry matter <strong>and</strong> grain yeild the cultivars S-18-1 <strong>and</strong> S-36 were observed as<br />
promising dual purpose types in field bean iLablab purpureuss, Some mutants particulary<br />
the earliness <strong>and</strong> disease resistance were also identified in species. Based on flowering<br />
behaviour, the germplasm of Cajanus cajon was grouped as short season, mid season<br />
<strong>and</strong> late-season types.<br />
7. Three variants of Dichanthium annulatum (<strong>IGFRI</strong>-12-1, 486-1, 491-1) <strong>and</strong> one natural<br />
hybrid between D. annulatum <strong>and</strong> Bothriochloa intermedia showed superior<br />
performance as compared to <strong>IGFRI</strong>-495-1. Two selections viz., <strong>IGFRI</strong> 43-1 <strong>and</strong><br />
<strong>IGFRI</strong> 4-2-1 of Pennisetum pedicellatum showed excellent performance at several<br />
locations in the country.<br />
8. Higher concentration of Ethyl methyl sulphonate <strong>and</strong> nitroso methyl urea, had prononouced<br />
effect on seed germination, shoot <strong>and</strong> root length, dry matter weight <strong>and</strong> other<br />
plant attributes in Sesbania sesban. Considerable amount of abnormalities were observed<br />
in root tip cs lls <strong>and</strong> PMCS in the mutagen treated material.<br />
9. Cytogenetic studies on selected F 4 plants of interspecific h)brid between Atylosia<br />
albicans <strong>and</strong> Atylosia scarbaeiodes revealed close homology between these species. Studies<br />
on F 5 plants of an inter-generic hybrid between Atylosia cojanifolia <strong>and</strong> Cajanus<br />
cajan indicated close relationship between these species.<br />
10. St udies on colchiploids indicated that there was no effect on fertility in C 5<br />
plants of<br />
Sesbania t ctraptera despite a decrease in quadrivalent frequency. C 6<br />
progeny of Atylosia<br />
scarbaeides showed variation in fertility status of individual plants, despite the<br />
fact that all plants showed a euploid chromosomal constitution of 2 n=4 x,=44.<br />
12 )
\<br />
11. Meiotic studies on different accessions of Panium maximum revealed the auto tetraploid<br />
origin of this taxa. A partially asynaptic plant was indentified in an in bred line<br />
11B-45-1-6 of Pen nisetum americanum In oats, cytological studies on 05.6 X 160<br />
500 intervarietal <strong>and</strong> JHO 802 X A sterilis interspecific F 2 plants indicated normal<br />
meiosis which showed the possibility of gametic selection against irregular numbers.<br />
The irregular behaviour in the expression of three style pistil character in F 2 revealed<br />
the possibility that t~IS character may be controlled by a major suppressor gene.<br />
12. Seed yield in bajra increased significantly with foliar application of 2500 ppm <strong>and</strong><br />
5000 ppm CCC. Oat varieties with lower values of CSI <strong>and</strong> higher values of R WC <strong>and</strong><br />
proline accumulation can grow well under dryl<strong>and</strong> conditions. O.1t varieties JHO 815,<br />
816 <strong>and</strong> Colabah were found tolerant to higher levels of salinity.<br />
13. The studies on the nature <strong>and</strong> extent of plant diseases <strong>and</strong> their control revealed that<br />
varietal response to foliar pathogens <strong>and</strong> treatment did not differ much in sorghum<br />
The study on the effect of cropping pattern on disease development revealed that spread<br />
of leaf spot of guar was checked by the presence of bajra plants, while no such effect<br />
was noticed for b.ijra rust.<br />
14. The studies on effect of different factors on disease development in sorghum indicated<br />
that the m \XimU31 Infection of foliar pathogens occured in early sown crop (10th July)<br />
<strong>and</strong> with temperature <strong>and</strong> humidity range of 22-35 0C <strong>and</strong> 85-95%, respectively.<br />
15. Artificial inoculation studies on su-babool indicated that the disease symptoms appeared<br />
when the trees were inoculated, covered with moist cotton pad wrapped with polythene<br />
sheet with moistening upto 961 hours. Studies on occurence of disease indicated that<br />
Albizia emeta, Albizia procera,. Acsci« tortttts, Acacia nilotica, Hsrdwicki« binnata<br />
were free from any disease symptoms, w:lile infectio.i of LU,t 0.1 Albizia lebbek, powdery<br />
mildew <strong>and</strong> rust on Dalbergia sissoo, coltetotrichum coostci on Leucaena leucocephala<br />
<strong>and</strong> grey leaf spot on Sesbania sesben, S gr<strong>and</strong>if/ora, <strong>and</strong> S acu/eata, was<br />
observed.<br />
16. Cowpea varieties <strong>IGFRI</strong>-45C1, UPC 5286 end UC 9J26 were found resistant to insect<br />
pests. Medi::ago scute/ata <strong>and</strong> Medicago rugosa were observed to contain volatile<br />
material repulsive to lucerne weevil. Important parasites of cowpea aphid, painted bug<br />
<strong>and</strong> stem borer were identified, Feeding was observed to stimulate neurcsecretary acri-.<br />
vity in Hypera Postica anc Co/losobruchus maculatus.<br />
17, Use of neern cake for control of root knot nematode in Sesbania gr<strong>and</strong>i{1ora was found<br />
( 13 )
effect ive since the gall formation was reduced by 50%. Seed treatment wit'i phenormiphos<br />
in 1.0% concentration gwe the least root knot index of Clltorie, cowpea <strong>and</strong><br />
moth bean. Histopathological studies of infected roots of Clitoria ternalea, Sesbnia<br />
spp. moth bean <strong>and</strong> guar revealed delayed development of nematode in resistant plants<br />
as compared to susceptible ones. Lesion nematode (Prety lench us zeae) was observed<br />
to be'highly pathogenic. to su-babool. Spiral nematode (Helicotytenchus dihystera)<br />
was observed to cause severe root damage in Cenchrus cilietis,<br />
DIVISION OF AGRONOMY<br />
1. Studies on intensive forage production programme revealed that Leucaena in association<br />
with hybrid napier can be an ideal crop combination for year round green fodder<br />
supply. Hybrid napier '<strong>IGFRI</strong>-3' proved to be suitable companion crop for growing<br />
in association with Leucaena<br />
2. Sorghum intercropped with shevri gave significantly higher green fodder yield as compared<br />
to maize-l-shevri <strong>and</strong> teosinte-l-shevri,<br />
3. Wheat variety Raj 1555 showed out st<strong>and</strong>ing performance both under open (grain farming)<br />
<strong>and</strong> canopy (agroforestry) systems,<br />
4. Studies on water production function in oat revealed that herbage production increased<br />
progressively withaddition irrigation of 50 mm at each successive stages of growth.<br />
5. In lucerne, irrigation needs to be scheduled at IWJCPE ratio of 0.8 to 1.0 to provide<br />
suitabe moisture environment for higher herbage yields in different cuttings.<br />
6. The investigation on quality of irrigation water indicated that sewage, cattleshed wash<br />
<strong>and</strong> saline water showed good irrigative values for berseem, lucerne <strong>and</strong> m ethe respectively.<br />
The response of oat was better with cattleshed wash.<br />
7. Teosinte can withst<strong>and</strong> the excess moisture conditions beyond one month of growth.<br />
8. The maximum forage yield was obtained with sorghum hybrid 988 at milk stage<br />
',Under rainfedconditions, sorghum-j-stylo produced the maximum forage yield. This<br />
combination recorded 57.6 <strong>and</strong> 14.5 percent higher green fodder <strong>and</strong> 72.7 <strong>and</strong> 12.0<br />
percent higher dry matter yield over pure st<strong>and</strong> of Srylo <strong>and</strong> sorghum, respectively.<br />
9. Cropping system involving Leucaena+S.sudanensE - bt essice gave the maximum<br />
forage yields.<br />
( 14 )
10. Medicago scutellata proved tobe a promising rabi leguminous fodder crop. Similarly<br />
en ry G.E. 1126 was quite promising-in terms of forage biomass production.<br />
11. Among Brect.e-ie decunbens entries, EC 145738 registered the maximum forage<br />
yield under rainfed conditians.<br />
12. The crop ccmbinaton of barley (Karan) with mustard in alternate strips of 4:4 ratio<br />
exhibited the maximum fodder production.<br />
DIVISION OF SOIL SCIENCE<br />
1. Khalif legumes, namely, cowpea, moth <strong>and</strong> guar are sensitive to light curtailment as<br />
these crops produced only 20-25% of their normal yields under 40-50%<br />
;of its normal production., In cereals, teosinte was found to be the least sensitive. to radiation<br />
curtailment. Similarly, oat, barley, Senji, safflower <strong>and</strong> Chinese cabbage were tolerant to low<br />
PA R where as berseern <strong>and</strong> lucerne were sensitive to radiation curtailment during winter<br />
Season. Among perennial forages, napier-bajra hybrid <strong>IGFRI</strong> No.6 was found to be the<br />
least sensitive to radiation reduction. Teosinte l- Cowpea proved more productive with low<br />
PAR availabili ty (70-80%) under intercropping systems, The soil productivity' wa~ greatly<br />
influenced by 4/bizia lebbek association with the result that the grass yielded almost equal to<br />
that ott .ined from open grassl<strong>and</strong>.<br />
2. The screening of salt tolerant forages jgrasses/trees indicated that sodici ty tolerance of<br />
cultivated rsbi forages followed the order of barley, oats, rape, lucerne, berseem <strong>and</strong> senji.<br />
Oat (<strong>IGFRI</strong>-2688, barley (Runa), berseern (8-99-1), lucerne (NDRI selection 1) were found<br />
fairly tolerant to salinity condition. The yields of carrot <strong>and</strong> turnip were not adversely affected<br />
upto a salinity level of 8 mrnhosjcm. Rhodes <strong>and</strong> para grasses were semi-tolerant whereas<br />
Dinanath <strong>and</strong> Setaria wera highly tolerant to soil salinity of 12 mmhosjcm. Sesbania sesban<br />
was found better than t.euceene in saline sodic soil. Dinanath grass was found most tolerant<br />
to soil acidity <strong>and</strong> could be grown without lime application, The maximum forage yields from<br />
maize <strong>and</strong> teosinte were obtained at 75 percent lime re quirement of 6.2 tons/he on soil of<br />
PH 5.1. Setaria sphacelate produced -higher forge yield than napier, guinea <strong>and</strong> rhodes<br />
grasses in acid soil.<br />
3.' Atospi. ilium bres.lense was found to be the best ni trogen fixer in cultivated fodder<br />
species addting 15-25 kg. Njha <strong>and</strong> increasing the yields from 19 to 41~~. Inoculation of grass<br />
seeds with Azospirillt m <strong>and</strong> Azctcbecter spp. improved the seedling emergence, growth <strong>and</strong><br />
( 15 )
productivity. Availability of phosphate from indigenous rock phosphate was enhanced with<br />
the use of phosphate solubilizing bacteria Bacillus polymlxa H() <strong>and</strong> Pseudomc n 1S stricin.<br />
4. The forage yield of sweet clover under tree canopy was less than open system. The yield<br />
reduction of crops could, however, be minimised by the addition of 13 kg Pfha as the efficiency<br />
of phosphate utilization is only 2.7% under tree' <strong>and</strong> 4.5% under open l<strong>and</strong>s in calcareous soil<br />
Moreover, P application decreases bulk density, increases field capacity, organic carbon, available<br />
N<strong>and</strong> P content of soil. Albizia tebbek "as found to be the most suitable tree species<br />
for agroforestr y system in view of its favourable influences on crop yield <strong>and</strong> soil productivity.<br />
Forage yield of oat <strong>and</strong> barley under A/bizia t ebbek was 80% to that of open plots. The<br />
reduction in yield under tree could be minimised with the application of 40 Kg Nfha.<br />
DIVISION OF GRASSLAND MANAGEMENT<br />
1. Studies to find out suitable time <strong>and</strong> method of sowing for grasses, viz., Cencht us<br />
cillerls, Dichanthium annulatum <strong>and</strong> legumes like Stylosanthes hamata <strong>and</strong> S Scabra<br />
revealed that July was the most appropriate time with an optimum seed rate of 4-6 kgfha.<br />
The planting of seedlings gave better establishment as compared to that of rooted slips <strong>and</strong><br />
seed sowing.<br />
2. The dry matter yield was significantly higher in Cenchrus hybrid, Ctvvsooooon<br />
fulvus <strong>and</strong> Heteropogon contortus pastures even with the application of 30 kg. N fha. In<br />
case of letter two grasses, harvesting at 60 days intervals gave the highest dry matter yield.<br />
Compartive studies for the application of fertilizers <strong>and</strong> introduction of legumes with <strong>and</strong><br />
without phosphorus revealed that the increase in dry matter yields in C. cillsris <strong>and</strong> D.<br />
'annuatum was significantly higher with the introduction of S hamata combined with<br />
application of 30 kg P 20.>fha, as compared to control <strong>and</strong> with other legumes.<br />
3. Arhar was found to be the most suitable crop for intercropping with C clilstls for<br />
getting the maximum biomass as compared to moong, guar <strong>and</strong> urd.<br />
4. In studies on natural grassl<strong>and</strong>s to find out suitable method <strong>and</strong> zime of sowing of<br />
legumes, higher dry matter production was obtained through split sowing in the last week of<br />
June in case of legume, viz., field bean.<br />
5. Experimentation with comparative performance of M<strong>and</strong>ya sheep in Dicbsnttvium<br />
pasture with <strong>and</strong> without legumes showed more or less same body weight gain. However,<br />
sheep can be maintained for longer duration in mixed pastures as compared to pure pasture.<br />
6. Studies on body weight gain of heifers in natural grassl<strong>and</strong>s dominated by Setrime<br />
Heisrop )gon community showed 280 gfheadfd.1Y for a period of three months<br />
( 16 )
(lOth September to 15th December). Average live weight gain was higher @ 275.5 g]<br />
head/day in Haryana calves for a period of 70 days w.e.f. 6th August, <strong>1984</strong>, when the<br />
animals were grazed in a mixed pasture as compared to animals kept on pure herbage<br />
of C cilletls,<br />
DIVISION OF AGRC-SILVIPASTURE<br />
1. The reproductive studies in leucaena species indicated significant variability in flower,<br />
pod <strong>and</strong> seed characters of different varieties. This in turn affected the seed production.<br />
Selection Silvi-4 of t.euceer.e teucocepbele continued to give maximum forage<br />
production- even in the 6th year of its harvesting without loss of its vigour. Natural<br />
hybrids between L. /eucocephala X L. diversifolia have been observed in the plantations<br />
showing growth vigour <strong>and</strong> wide differences in various characters.<br />
2, Dlchrostecbvs clru reo gave a wide amplitude of pH tolerance from 5-10 during<br />
germination phase. Similarly Albizia amara had a tolerance range of pH 3-10.<br />
Potassium nitrate (0.3%) <strong>and</strong> Thiourea (0.2%) were found to improve the seed germination<br />
of A. lebbek,<br />
3. At the age of 13 years, Acacia tortllis gave the peak above ground biomass of 121.1<br />
t/ha at 4 X 6 m spacing in association with C. clleirls under silvipastoral situations.. __<br />
Under the two plant arrangements, A. nllotica <strong>and</strong> A. tortilis showed that with alternate<br />
plant arrangements, the former gave higher growth rate on dry wastel<strong>and</strong>s.<br />
Herdwickie binata gave higher height under pasture combination compared to Albizia<br />
emera but the collar diameter <strong>and</strong> dbh were always higher in the ca~e of latter species. '<br />
4. Under silvipastoral system, Chrysopogon tulvus continued to give persistant growth'<br />
compared to Cenchrus citieris or Sehima nervosum. C. Ciliaris <strong>and</strong> Stvtossmhos<br />
b. ms te gave ideal corr bnaticn with D. cirt refUll(;er silvipastoral system for higher<br />
l<strong>and</strong> pre: uctivity. All lzle W GI, gave h gher survival percentage compared to other<br />
2 species of Albizia. A. pro cere was the lowest. Plant height <strong>and</strong> collar diameter also<br />
followed similar trend. . .<br />
5. In the agroforestry experiments besides the regular crops 'like wheat <strong>and</strong> sorghum<br />
+cowpea, Leucaena gave forage (dry) yield of 5.8-9.4 tlha in E-W<strong>and</strong> NW-ES<br />
orientation. The thinning of Leucaena provided' additional 14:-16.7 tJha firewood.<br />
17 )
The leaf manure of Leuceena with oats crop gave higher nitrogen equivalence <strong>and</strong><br />
showed promise for use as rich source of nitrogen leading to soil build up.<br />
6. In genetic studies on Leucaena, plant height, collar diameter <strong>and</strong> no. of leave, gave<br />
significant positive association with forage <strong>and</strong> fuel production attributes. Positive<br />
hybrid vigour for forage <strong>and</strong> fuelwood yields were observed in the inter varietal crosses<br />
of Leuceene. Gama ray irradiation of seeds did not produce significant variability in<br />
the Leucaena populations at various doses. Self incompatibility was observed in all<br />
the species except L. leucocephala.<br />
DIVISION OF<br />
SEED TECH~OI..OGY<br />
1. In oats, plant height, leaf length <strong>and</strong> width were observed to be important for building<br />
up selection criteria for fodder <strong>and</strong> seed yield. The number of pod bearing branches<br />
was considered important for selecting good seed yielding types in cowpea.<br />
2. Agronomic studies on seed production in cowpea showed that thinner plant population<br />
flower drop <strong>and</strong> pod drop were the main constraints fOI summer seed production.<br />
July 25 <strong>and</strong> August 10 were observed 10 be suitable dates for sowing the crops.<br />
3. In berseem, 1% spray of atrazine was found to improve number of bolls, number of<br />
seeds per boll <strong>and</strong> seed size. A cutting height of 10 cm superimposed with atrazine<br />
spray produced the maximum seed yield. Studies on inter <strong>and</strong> intra-row spacing<br />
revealed that in Setaria sphacelata, the maximum seed yield (68.8 kgjha) could be<br />
obtained with a spacing of 50 em x 30 em while in Chrysopoqon iutvus, the maximum<br />
seed yield (80.7 kgjha) was obtained with 50 em x 50 Cm spacing.<br />
4. Studies on source sink relationship revealed that in cluster bean, moderate dark respiration<br />
<strong>and</strong> good accumulation of sugar in flower would result in high seed.harvest.<br />
In bajra, high sugar content in the beginning was found favourable for increased forage<br />
production <strong>and</strong> contributed less for cob formation.<br />
5. Borax was the best among different chemicals tried <strong>and</strong> it increased the seed production<br />
<strong>and</strong> sugar content in flower in berscern when applied at the rate of 4 gjlitre.<br />
Among the cowpea cultivers, Russian giant <strong>and</strong> UPC 5286 showed high ratio of large<br />
seeds <strong>and</strong> only these two cultivars exhibited 100% germination thus indicating that<br />
large size seeds had high germination'z; <strong>and</strong> better seed vigour as compared to others.<br />
18 )
Studies on effect of different types of containers/bags on germination, seed vigour <strong>and</strong><br />
physiological health after 4, 17 <strong>and</strong> 26 weeks showed that in general, there/was gradual<br />
loss in sed vigour <strong>and</strong> physiological potential during storage. However, .in case of<br />
berseern, there was no effect of storage container on. seed vigour. ,<br />
6. In mustard, higher dose of nitrogen increased the incidence, of sawfly <strong>and</strong> aphid, while<br />
phosphorus <strong>and</strong> potassium decreased the incidence of both the pests. High levels of<br />
fertilizers, however, resulted in' better fodder <strong>and</strong> seed production.<br />
7. Investigation on the efficacy of different insecticides on seed production fromicowpea<br />
<strong>and</strong> M. P. chari in intercropping system showed that crop sprayed with endosulfan<br />
(0.09% a. i.) or carbaryl (0.1% a. i.) gave satisfactory control of leaf hoppers, defoliators,<br />
blister beetle <strong>and</strong> hycaenid butterfly <strong>and</strong> produced maximum seed yield<br />
(10 g/ha).<br />
8. Studies on evaluation of fungicides for controlling seed borne diseases indicated that<br />
soaking treatment with Bavistin (0.25%) for 24 hrs gave' the best seedling emergence<br />
in berseern (Wardan) <strong>and</strong> lucerne (<strong>IGFRI</strong>-S~244) with drying at' room temperature.<br />
Bavistin, <strong>and</strong> Vitavax (0.25%) treatments increased green matter yield <strong>and</strong>, seed yield<br />
significantly in Stylo , lucerne <strong>and</strong> bersseem.<br />
9. Studies on promising insecticides for safflower aphid revealed that 'three insecticidal<br />
spray's (rnonocrotophos 0.08%) at 20 days intervals commencing from 60 days growth<br />
are needed to keep the crop free from aphids.<br />
DIVISION OF PLANT AN'IMAL RELATIONSHip<br />
1. 'Nutritionl evaluation experiments on para grass at two stages, of growth' (45%DM &<br />
75.1 %DM) for cattle <strong>and</strong> buffalo calves showed that cow calves utilized energy yielding<br />
nutrients better than buffalo calves at both stages.<br />
2. l euceere foliage, when given to calves alongwith dry grass (33i67)ensur~d maintenance<br />
of bodyweight, while the Control group of animals recorded Joss of body weight.<br />
3. Grazing crossbred calves exclusively on natural grassl<strong>and</strong>s predominant-with Sehlme<br />
nervosum can support a grow}h rate of 280 g/day.<br />
( 19 )
4. Survey of grassl<strong>and</strong>s in four districts of Bundelkh<strong>and</strong> (Chattarpur, Sagar, Panna <strong>and</strong><br />
Darnoh) conducted during post monsoon months of October/November showed that<br />
the protein content varied from' 5.33 to 9.37%, while lignin varied from 6.18 to<br />
8.48%. The availability of structural carbohydrates did not differ significantly from<br />
district to district. Among the trace elements, the levels' of copper <strong>and</strong> zinc were much<br />
lower than normal <strong>and</strong> iron level was satisfactory.<br />
5. Evaluation experiments on bermuda grass pasture with cattle have shown that this pasture<br />
can support milk production upto 5 kg/day when it was supplemented with either<br />
concentrate mixture at the rate of I kg/animal/day or foliage of Leuceene at the rate of<br />
5kg/animal/day/cattle grazing on natural grassl<strong>and</strong>s to f mature lseileme species) could<br />
sustain milk production upto 3 kg/day when they were given supplementatron of either<br />
1 kg concentrate mixture or 5 kg t.eucsen« foliage/day.<br />
6. Evaluation of sweet sorghum (Rio) fodder based ration for Tharparkar cows <strong>and</strong><br />
Murrah buffaloes of 1st lactation at State Govt: Livestcck farm Bharari showed that<br />
buffaloes utilized nutrients better than cattle. Die.p. <strong>and</strong> T.D.N. consumption (g/kg<br />
w O . 7 5/day) recorded was 6.27,5.55; 88.90 <strong>and</strong> 62.96 for buffaloes <strong>and</strong> cows respectively.<br />
The above ration supported milk production at the rate of 3.54 lit. <strong>and</strong> 2.58 lit.<br />
in buffaloes <strong>and</strong> cattle, respectively.<br />
7. Young goats ..recorded satisfactory growth rates (32 g/day) when maintained exclusively<br />
on Leucaena foliage lopped from trees of more than one year age, during winter<br />
months.<br />
8. Laboratory experiments to determine the influence of wilting on the quality of silage<br />
with different crops showed that when the protein content of herbage was high, wilting<br />
was 'of no advantage but with poor quality forage it improved the quality of<br />
silage.<br />
9. Among the different additive tried for ensilage o~ forages in the laboratory, formic acid<br />
was better then others individually (formalin <strong>and</strong> sulphuric acid). Comparision of mixtures<br />
indicated that formalin + formic acid was better than other combinations tried<br />
for conservation of legumesjgramineceous crops in the laboratory.<br />
10. A comparative study on the laboratory evaluation of Sesbania with Leucaena, tropical<br />
pasture legumes <strong>and</strong> clutivated legumes h.is shown that it compared well WIth all of<br />
11 em in ierms of cl emical attributes (C P, NDF, ADF, Lignin & Silica), <strong>and</strong> in vitro<br />
true dry matter digestibility (lVTDMD). Among different seasons .ned for lopping, the<br />
20 )
maximum quantity of crude protein could be<br />
harvested during monsoon season.<br />
11. Although berseem btiuse contained higher levels of crude protein (8.7%) as compared<br />
to cereal straws (4.7%), the Lignin <strong>and</strong> ADF levels were also higher in berseem bhusa<br />
(12.2% <strong>and</strong> 52.0%) than cereal straws (7.7% <strong>and</strong> 49.1%)<br />
12. Zinc supplementation at the rate of 65 ppm/day in the ration of calves influenced significantly<br />
the efficiency of feed utilization for growth production.<br />
13. Forage legumes, namely, Indigofere astragalina <strong>and</strong> Rhyncosia minima commonly occuring<br />
in natural grassl<strong>and</strong>s, were found to have good potential as livestock feeds. They<br />
supply about 13-16% crude protein <strong>and</strong> did not contain any constituents deleterious to<br />
animal heal tho<br />
DIVISION OF AGRICULTURAL ENGINEERING AND POST HARVE'ST TECHNOLOGY<br />
1. Mathematical models have been established for determining engineering properties viz.<br />
quilibriu:n moisture content, vapour pressure, latent heat of moisture evaporation nad<br />
specific heat of range grasses <strong>and</strong> berseern (Trifolium Alex<strong>and</strong>rinum). Mathematical<br />
mcdel has been developed to determine grass silage density with the known values of<br />
dry matter content <strong>and</strong> height of filling.<br />
2. Significant influence of silo geometry on silage density has been noticed. Though-put<br />
capacity of ensilage cutter <strong>and</strong> silage density have inverse relationship. 45 percent of<br />
30mm chop length gave a grass silage density of 68 kg/m3.<br />
3. Moisture content in the rangeof 9.5 to 13.0 percent, w.b, resulted in minimum (60.61<br />
percent) axial expansion of grass wafers formed at 30 MPa pressure <strong>and</strong> one minute<br />
dwell time.<br />
4. Prediction equations have been developed for estimating soil 'loss from rangel<strong>and</strong>s 0,<br />
3 to 10% slope.<br />
5. A positive relationship was observed between energy input <strong>and</strong> total yield of M.P. Chari<br />
in red soil in the range ef 1680 to 1918 MJ input energy. prot'o'typis:bfl.·foqtge harves<br />
.er developed at <strong>IGFRI</strong> has given promising results in harvesting' berseem <strong>and</strong> ost<br />
crops. An extended shoe type.furrow was developed <strong>and</strong> found superior to the existing<br />
ones in sowing dry l<strong>and</strong> crops. .<br />
( .21 )
6. Package of improvements consisting M. B. plough, bukhar/bullockdrawn disc harrow<br />
<strong>and</strong> <strong>IGFRI</strong> single row/Aligarh 3-row drill resulted in net saving of over Rs. 400/- per<br />
hectare in tillage <strong>and</strong> sowing operations compared to that of local practice by the farmers<br />
in wheat crop. Positional placement of seed <strong>and</strong> fertilizer sowing of seed <strong>and</strong> DAP<br />
mixture showed better results when compared with sowing seed <strong>and</strong> DAP seperately<br />
using seed-cum-fertilizer dr.ll.<br />
DIVISION OF RURAL ECONOMICS AND BIOMETRICS<br />
1. The weather analysis of B<strong>and</strong>a district indicated that climate in relation to period of<br />
moisture availabi lity for crop growth may be quite useful for crop planning. The 'probabilityanalysis<br />
revealed that maximum weekly rainfall which can be expected with<br />
50% probability in June, July, August <strong>and</strong> September was 1, 116, 135 <strong>and</strong> 63 mm<br />
respective!y.<br />
2. The results of studies on relative economics of forgae crop production were in favour of<br />
cultivation of forage crops in overlapping system with recommended package of practices.<br />
In all the demonstration trials, cost of production of green fodder was found to<br />
Rs, 5.68 <strong>and</strong> the minimum cost of production was Rs.5.42/h9. The input output<br />
ratio was 1:3.5.<br />
3. Economics of forage proIuc.ion system based on date from experiments <strong>and</strong> demonstration<br />
trials laid out at Central <strong>Research</strong> Farm, <strong>IGFRI</strong>, Jhansi showed thaj the total dry<br />
matter production (grass <strong>and</strong> legume mixed pasture) was maximised in the field of<br />
Cenchrus cillerls + field bean planted in 1:1 ratio as compared to 2:1 <strong>and</strong> 3:1 ratios.<br />
Thus, it may be concluded that the mixed pastures of Cenchrus ciliaris <strong>and</strong> field bean<br />
in 1:1 ratio may be established for increasing the production of high quality forage<br />
pastures.<br />
4. The study conducted in five villages of Baragaon block of Jhansi district showed that<br />
the average milk yield per day per animal was 1.40 Iitres in the case of cows <strong>and</strong> 2.04<br />
litres in case of buffaloes under the existing conditions. These villages were adopted for<br />
transfer of forage production technology <strong>and</strong> consequently farmers fed berseem as a<br />
green fodder to their milch animals. The impact of fodder in terms of increased milk<br />
yield, on an average, came to 2.10 litres per day per cow <strong>and</strong> 2.98 lit res p~r day per<br />
buffaloe. The percentage increase in milk yield due to berseem in both cows <strong>and</strong> buffaloes<br />
was about 60 percent.<br />
( 22 )
DIVISION OF PLANT IMPROVEMENT<br />
PI-1 GENETIC RESOURCE COLLECTION, EVALUATION, CLASSIFICATION,<br />
CATAL')GUING AND MAINTENANCE IN FORAGE CROPS.<br />
1.1 Range grasses.<br />
1.2 Cultivated legumes.<br />
ru. P. Singh, J. N. Gupta <strong>and</strong> O. P. Dixit)<br />
Guar (Cyamposis tetragonolobdy<br />
I.<br />
Guar germp'asm compnsng 138 cultivars was evaluated for fodder <strong>and</strong> seed yield<br />
attr.butes. Wide range of varibiality was observed for days to 50% flowering (35-60), plant<br />
height·(77,7-139.6 em), node number (19.0-41.0), branch number ()-21.3), days to maturity<br />
(91-133), clusters on main shoot (4.0-20.0), total number of clusters/plant (4.0-47.3), cluster<br />
length (3.5-11.5 cm) , podes/cluster (3.0-11.0), total pods/ plant (22.0-140.0), pod length<br />
(4.0-10.4 em), seeds/pod (5.0-10.5) <strong>and</strong> seed weight/plant (5.5-52.1 g).<br />
In the second set, 606 lines were evaluated for different growth traits. Wide range<br />
of variation was observed for days to 50% flowering (30-55), plant height (52.0-90.8 cm),<br />
node number (14.3-32 r6), branch number (0-9.6), clusters on main shoot (3.0-13.3), total<br />
ciusterjplant (3.0-19.6), cluster length (3.0-10.0 cmj , pods/cluster (2.C-1O.0), ped length<br />
(4.8-'9.1 em), total pods/plant (3.8-76.0), seeds/pod (3.3-10.0) <strong>and</strong> seed weight/plant<br />
(1.6";'13:3 g).<br />
- Cultivars with specfie desirable attributes were identified for further exploitation in<br />
breeding programme. .<br />
Moth. bean tPhaseolus aconitifolius)<br />
.. Evaluation of 244 lines indicated wide genetic vanauon for different fodder yield<br />
attributes. The cultivar IL 1031 was very dwarf (14.2 cm), while IPCMO 856 was found<br />
tall (49.1 ern) with highest nodes (22-33). The maximum branches were recorded in IL 1122.<br />
ILO-38 was found quite superior giving high green matter/plant (97.3 g) <strong>and</strong> dry matter/<br />
plant (25 g).<br />
One h<strong>and</strong>red ninety eightjcultivars of moth bean were screened for reaction to damage<br />
by pulse beetle on the basis of number of adults produced by the beetle under laboratory<br />
condition. The tolerent cultivars were IL 1173, 1188, 1167, 1057, 74-59, 1035, 1085, 1175,<br />
74-66-1, 1025, 1087, 1090, 74-66, 1042, 1132, 1066,1140,1049, 1180,1128, 1000,1102,<br />
1033, 1137, 1096, 1163, 1074, 1078, 1181, 74-66, 74-82, 74--59-1, 74-53, 1174, 1068, 1157,<br />
1089, 1095, 1145 <strong>and</strong> 1126.<br />
( 24 )
Senji (Melilotus species)<br />
Twenty four cultivars belonging to 15 species of Melilotus were eval~a(ed .. in pots.<br />
Data on various growth parameters were recorded at 50% flowering stage. A wide range of<br />
variability was observed for plant height (18.8-174.8 cmj lnode number" (l6.~47.0)lbranch<br />
number (9.0 35.0), branch length (35.9-109.3 cm)<strong>and</strong> green rriatter yieldJphint(34.0-219,3 g).<br />
M. alba g ive the maximum green matter yield per plantl219.3 g)' followed' 'by M. officinalis,<br />
M. etelice <strong>and</strong> M. seqtetis giving 204.0 g'19J.3 g"<strong>and</strong> 172.3 gJplant;' respectiv~iy~<br />
\, .j .•••. 'I'!· 'i.,..•. ;<br />
1.3 Range legumes . .<br />
(J. N. Gupta, S. R. Gupt" <strong>and</strong> U. P.Singh)<br />
Macropt elium lathyroides .<br />
Evaluation of 9 cultivars showed 'cIa 'ride range of variation inplapt height<br />
(202.6-235.7 em), number of nodes (52.6:-64.6), number of,branches .(3.6i-:-6:3)"granch<br />
length (5704,-122.6 cm),leaf riumb~rlplant'(76.6":'11.6),eaflength '
<strong>and</strong> D. dlstotium, Temperature <strong>and</strong> day light seemed to have' pronounced effect on the<br />
regeneration of these species. Rest of the Desmodium species did not show any promise for<br />
fodder production. '<br />
Stylosanthes Species<br />
Four species of Stylosanthes, i.e. S. humilis, S. bomste, S. qrecitls & S. scabra were<br />
evaluated at monthly intervals from August to January with regard to population density, dry<br />
matter production <strong>and</strong> leafjstem ratio (dry wt. basis). The plant density was the maximum<br />
in S. hamata during August <strong>and</strong> in S. gracilis during September (table 4). Higher plant<br />
population in S. gracilis in September as compared to that in August indicated delayed germination<br />
of this species. The population decreased steadily with increasing size of plants<br />
in successive months in all the species. The density of mature plants per meter ranged between<br />
10-20% of original maximum seedling density.<br />
Irrespective of the plant populatiop. the dry matte~ production per unit area increased<br />
with the age of plant in all the species. S. gracilis maintained a relatively increased production<br />
level until December. Unlike S. graci/is, S. scabra was a hardy <strong>and</strong> slow growing<br />
species with low herbage yield during warm wet monsoon months (August to October) <strong>and</strong><br />
exhibited agressive growth <strong>and</strong> productivity during winter months. Another perennial species<br />
S. hamata was medium in productivity throughtout the period of its growth. S. humllls<br />
an annual species, with growth duration of only four months was slightly better than<br />
S. scabra <strong>and</strong> poorer than other perennials in production.<br />
. .<br />
- .. All the species, except S. seal re were prf'ousely leafy at seedling stage (early monsoon<br />
period). The annual species was an early leaf shedding type. S. scabra appeared to show<br />
erratic trend <strong>and</strong> appeared to be fairly woody in August. This species, turned out to be<br />
profusely' leafy by end of October <strong>and</strong> regained higher stem proportion' throughout winter<br />
~e!!-soJl.<br />
1.4 ·Other forage species<br />
(J. N. Gupta, U. P. Singh <strong>and</strong> O. P. Dixit)<br />
Amaranthus species.<br />
Seven, promising cultivars of Amafaf1lhus ~pedeg Were evaluated <strong>and</strong> data on dhler~m<br />
growth parameters were recorded. A marked range of variation was observed in plant height<br />
( 26 )
Table 3 : Range of variability in different characters in Desmodlum species.<br />
CharacterjSpecies D. tortosum D. distortum D. discolor D. gangeticum D. intortum D. uncinatum O. ssndslsence<br />
1. Plant height (em) 95.0-146.3 93.9-135.4 131.2-140.1 56.7-82.0 93.4-129.8 803-131.2 83.0-105.8<br />
2. No. of nodes 31.7-42.3 20.6-39.3 343-38; 7 11.0-23.7 21.7-28.0 18.7-39.3 22.7-26.3<br />
3. Branch Number 0.0 -4.7 0.0-5.7 2.5-N 7 6.0-15.0 1.6-16.0 7.7-8.7<br />
4. Branch length(cm) 0.0-101-.7 0.0-2t8 13.7-30.3 50.5-74.0 144-108.0 58.2-79.9<br />
5. No. of leavesjplant 20.0-58.3 14.3-52.7 35.3-44.0 15.3-22.7 46.6-93.3 24.3-101.6 55.7-777<br />
6. Leaf length (em) 14.2-18.5 14.8-18.2 17.8-20.3 11.4-12.1 7.3-7.4 6.5-16.1 5.7-6.3<br />
7. Leaf breadth (em) 7.6-12.5 9.6-11.5 9.0-,10.6 6.5-7.3 4.0-4.6 3.6-9.3 3.4-3.8<br />
8. Fresh wt. of stemI 43.3-102.3 28.2-83.3 74.0-93.3 3.3-8.3 11'3-23.3 4.0-78.3 8.3-15.0<br />
plant (g) \<br />
9. Dry wt. of stemI 8.4-23.3 4.1-17.3 14.3-19.3 1.2-2.7 4.3-7.3 1.1-17~3 2.7-5.3<br />
plant (g)<br />
10. Fersh wt. of leavesl 34.3-81.7 18.3-60.7 54.3-71.7 2.7..;.(j.0 8.3-15.7 3.3..;.(j6.6 5.0-9.0<br />
plant (g)<br />
11. Dry wt. of leavesl 9.0-20.1 4.2-14.0 11.3-14.7 1,6-2.4 3.7-5.0 1.4-14.8 2.4-3.2<br />
plant (g)<br />
12. LiS ratio (dwb) 0.65-1.11 0.81-1.18 0.76-0.79 0.87-1.30 0.68-0.85 0.52--1.27 0.6-0.87<br />
-<br />
Plant height of". gangeticum was length of longest branch
Table 4 Plant density (per m 2 ) dry matter yield (Kg 1m 2 ) <strong>and</strong> leaf Ishcot ratio (d w b) in<br />
Stylosanthes species during different months<br />
August \ September<br />
l October l<br />
November ) December January<br />
------.----<br />
S. scsbt»<br />
Population 135.00 116.00 ' 65.00 37.00 28.00 12.00<br />
DM Yield 0.65 0.73 0.80 2.32 3.61 3.66<br />
LIS, ratio 0.64 1.09 2.01 0.48 0.94 1.00<br />
S. gr
(5.32-59.3 em), inflorescence length (3.8-30.7 em), number of nodes (19.0-33.0), stem thick.<br />
ness (0.3-1.65 ern), number of branches (1.3-23.0), branch length (8.0-41 2 em), leaf length<br />
(2,7-11.9 ern), leaf breadth (1.3-5.7 ern), leaves/ plants (70.6-835.3), leaf wt. /p'lant<br />
(10.6 33.3 g) <strong>and</strong> stem wt.jplant (24.0-130.0 g).<br />
. .<br />
Chickory (Cichorium intybus L.)<br />
With a view to exploit Cichorlum intybus (chickory) as fodder, the growth' performance<br />
<strong>and</strong> the fodder <strong>and</strong> seed production potential under varying habitats were studied.<br />
There was a gradual decrease in temperature from October to January followed by gradual<br />
increase till May. A regular decrease in humidity was also observed from October till rainy<br />
season. Main features including physico-chemical characteristics of three study sites were<br />
as under. .<br />
Site i.<br />
Site ii.<br />
Site iii. :<br />
Berseem field having black soil, 37.8% s<strong>and</strong>, 10.51 wilting coefficient <strong>and</strong> 6.5 pH.<br />
Berseern field having red soil, 68.01% s<strong>and</strong>, 5.27 wilting coefficient <strong>and</strong> 7.5 pH.<br />
A fallow field having red soil, 48.2% s<strong>and</strong>, 9.42 wilting coefficient <strong>and</strong> 7.0 pH.<br />
The data (table 5) indicated that relative growth performance of chicory plants was<br />
poor at site II which may be due to the prevailing edaphio-clirnatic factors. 'Interspecific<br />
competetion also had pronounced effect on seed production of chickory. The maximum<br />
numoer of seeds/plant was recorded at site HI (958) followed by that at site II (908), At<br />
site III, plan ts were growing in comperetion free l<strong>and</strong>, whereas at site II, a remarkable mortality<br />
in berseem plants was noticed due to lack of available moisture during post flowering<br />
stage.<br />
The dry matter production was also studied at 15 days interval in order to determine<br />
the reluive growth rate (RGR). The data given below indicated that the maximum dry<br />
matter was produced at 45-60 days gaowth.<br />
Growth period<br />
15-30 days<br />
30-45 days<br />
45-60 day3<br />
60-75 days<br />
75-90 days<br />
RGR Value<br />
0.0327 gig/day<br />
0.0222 """<br />
0.0537 """<br />
0.252 """<br />
0.0121 """<br />
( 29 )
Table 5<br />
Growth performance of C. intybus under different habitats.<br />
Characters Site I Site II Site III<br />
No. of branches 94D±3.02OO 6.7 ± 1.23 7.1±3.67<br />
, Length of longest branch 71.0±8.16 63.0±8.20 n.2± 14.75<br />
. Nodes in longest branch lS.4±2.74 15.3 ± 2.45 lS.8±2.02<br />
Total nodes 61.3± 19.86 44.81 ± 19.70 43.2±26.4<br />
Length of 3rd internode S.4± 1.07 4.2±0.62 4.9±O.61<br />
Length of 5th internode 5.5±0.47 4.1 ±0.96 S.l ± 0.40<br />
Length of leaf on 5th node 2.4.+0.37 4.8±2.32 3.3±0.81<br />
Breadth of leaf on 5th node 1.3±0.18 1.7±0.39 1.4±0.28<br />
Total no. of ~ead bearing nodes SS.2± 18.30 30.7 ± 18.15 40.8±23.88<br />
Diameter of root (below 1 em) 3.91 ±0.16 0.75±0.15 0.93±0.22<br />
Fresh wt. of rootrplant (g) 3.9±1.67 2.8±!.71 1.4±0.93<br />
Dry wt. of root/plant (g) 1.0±0.49 o 8±0.48 0·4±0.28<br />
Fresh wt. of shootjplant (g) 35'1 ±22.63 23.0±14.28 34.3±31.78<br />
Dry wt. of shoot/plant (g) 9.4±S.20 6.6± 3.73 lLO±10.25<br />
DAverage of 10 plants<br />
DOSt<strong>and</strong>ard deviation;<br />
( 30 )
PI-2 : BREEDING VARIETIES OF CULTIVATED NON-LEGUMINOUS FORAGES<br />
2.1 : Produciton <strong>and</strong> quality breeding in fodder sorghum (Sorghum bicolori<br />
(D. S. Katiyar)<br />
The promising cultivars viz., <strong>IGFRI</strong>-491. 777, 1328, 4816,6014, HDI <strong>and</strong> HD 2 were<br />
multiplied.<br />
2.2 : Intra <strong>and</strong> interspecific hybridization in Sorghum<br />
(Bhag Mll <strong>and</strong> U. S. Mishra)<br />
Varietal evaluation<br />
Twelve promising strains developed through intra-population selection <strong>and</strong> mass selection<br />
were tested in a yield trial adopting r<strong>and</strong>omised block design with three replications.<br />
M. P. chari was used as control. The data revealed considerable genetic variation for flowering<br />
time, plant height, leaf number, leaf length, leafbreadth, stem thickness, green fodder yield<br />
<strong>and</strong> dry matter yield. The varietal differences were observed to be significant; JHS-,;-833 was<br />
rated the best strain giving 302.8qjha green yield. On dry matter basis, however, JHS-845<br />
was the best (70.95 qjha). On the basis of yield per day, JHS-833 was observed to be the best<br />
producing 3.07 qjha green fodder. Dry matter yield per day was, however, lower than that of<br />
check variety.<br />
Genetical studies<br />
i Hybrid vigour for CUlm <strong>and</strong> leaf characters was studied in Sorghum blcolor X S. blcolor<br />
<strong>and</strong> S bieolor X S. sudenense crosses. Twenty Seven entries including 16 parents (One male<br />
sterile line, 5 promising S. bicolor lines, S. sudanense lines, 2 shoot fly resistant lines <strong>and</strong><br />
3 shoot borer resistant lines) <strong>and</strong> 11 hybrids were studied in a r<strong>and</strong>omised block design with<br />
three replications. Considerably high range of variation was observed both for mid parent <strong>and</strong><br />
better parent heterosis (table 6.) The mid-parent hetrosis<br />
( 31 )<br />
ranged from "'-'33.6 to 123.9% for
plant height, -27.5 to 25.0% for culm thickness, -18.2 to 18'3% for leaf mumber, -23.8 to<br />
42 6~~ for leaf length <strong>and</strong> -36.4 to 45.0% for leaf breadth, The range of variation for heterobettiosis<br />
was trom -j/.4 to 54.2.% for plant height, 37.6 to 10.2% for culm thickness, -24.1<br />
to 15.7% for leaf number, -30.0 to 30.4 for leaf length "<strong>and</strong>-40.6 to 31.6% for breadth.<br />
Two F 1 hybrids, viz., 2219 AxAS-l <strong>and</strong> 22l9AxPB 8104-1 exhibiting fairly height positive<br />
heterosis <strong>and</strong> hetrobeltiosis for most of the'characters studied were identified as promising.<br />
ii Transgressive segregation pattern was studied in Fz generation of a three-way cross<br />
[296A X PC-40] X IS 2887. The observations were recorded on 116 Fz plants <strong>and</strong> on 5 r<strong>and</strong>om<br />
plants in each of the three parents for five culm <strong>and</strong> leaf characters. The data [table 7-9]<br />
revealed the presence of only positive transgressive segregates for plant height, culm thickness<br />
<strong>and</strong> leaf breadth <strong>and</strong> both positive <strong>and</strong> negative transgressive segregates for leaf number <strong>and</strong><br />
leaf length. The highest percentage of individuals showing positive transgressive segrega'ion<br />
was observed for plant heiget followed by that for leaf length, leaf number, culm thickness<br />
<strong>and</strong> leaf breadth. Tr.is suggested the possibility of recovering desirable plant 1ypes following<br />
3-way cross approach.<br />
Advancing of hybrid genera tions<br />
F l generation of 11 crosses involving S. bicotor X S. bicolor <strong>and</strong> S bicoiot X S. sudsnense<br />
combinations were raised <strong>and</strong> studied for different characters.<br />
ii Fz generation of 95 crosses was raised ani 411 individual F z plants from different crosses<br />
were selected <strong>and</strong> their seed harvested to raise plant to row progenies next year.<br />
iii Seventy eight F 3 progenies dervied from 10 crosses we"re raised in sinzle rows <strong>and</strong> evaluated.<br />
Inferior progenies were discarded <strong>and</strong> 28 promising ones were ~Iected to raise F,t.<br />
generation.<br />
iv Two hundred <strong>and</strong> twety four F 4 progenies derived from 150 selected F 3<br />
progenies were<br />
raised <strong>and</strong> studied for different fodder attributes. Seventy promising' progenies were retained<br />
for further testing <strong>and</strong> the rest were discarded:<br />
V BC l of three crosses, viz. 296A X SSG 59~3, 296 A X M 35-1 <strong>and</strong> 296 A x M:P. charl<br />
<strong>and</strong> BCz of a cross 296 A X PC 40 were raised.<br />
( 32
Table 6 Percent heterosis for culm <strong>and</strong> leaf characters in F 1 hybrids.<br />
Hybrids<br />
Plant Culm Leaf Leaf Leaf<br />
height thickness number length breadth<br />
S. bicolor X S. bicolor<br />
2219A X AS-l 81.78 . 25.00 -9.57 26.80 45.01<br />
(19.26) (5.93) (-19.05) (0) (31.58 )<br />
2219AxAS-3 58.92 -7.76 -13.98 17.03 -5.56<br />
(1.30) (-9.32) (-22.33) (-11.25) (-17,66)<br />
2219A X PB.8104-1 123.95 19.27 -14.44 42.58 28.85<br />
(54 17) (10.17) (-23.00) (30.36) (18.58)<br />
Riox.P318817-2n -31.62 8.70 16.82 1.40 4.84<br />
(-37.42) (5.04) (3.31) (-4.04) (3.83)<br />
SU-45 X PS 18817-2 -33.56 - 27.46 -4.88 -23.80 -28.23<br />
(-36.07) (-37.58) (-6.40) (-27.61) (-32.92)<br />
S. blcilor x S, su danense<br />
2219AxSSG 59-3 34.20 -8.26 11.49 -7.72 4.15<br />
(-19.74) (-15.25) (7.78) (-29.99) (-1.86)<br />
2219A xIS 3254 57.34 .4.30 -18.18 21.28 33.55<br />
(5.83) (-17.80) (-24.1 0) (1.10) (29.05)<br />
SSG 59-3 X IS 18677 14.90 -20.51 1.74 -8.49 -36.40<br />
(2.79) (-30.08) (-14.60) (-9.49) (-40.52)<br />
IS 3191-1 xIS 5470 19.79 -13.33 17.60 25.94 32.08<br />
(18.90) (-14.60) (15.75) (15:54) (13.05)<br />
IS 3228 xIS 1151 -;-7.Q9 -5.93" -2.99 7.79 2.40<br />
(-825) '(-20.62) .(-13.33) . (5.43) (-14.64)<br />
IS 3323>< Etawah local 20.94 5.83 18.28 18.01 1.06<br />
(8.69) (3.25) (6.80) (12.69) (-10.85)<br />
(Figures in parenthesis denote heterobeitosis)<br />
( 33
Table<br />
7: Growth performance of parents <strong>and</strong> 3-way cross F 2 plants.<br />
Characters<br />
Parents<br />
3-way cross F 2 plants<br />
296 A PC 40 IS 2887 (range)<br />
Plant height, em 94.2 321 7 2627 2948-468.0<br />
Culm thickness, em 1.6 1 5 10 12-22<br />
Leaf number 11 3 127 12.3 10.0-18.0<br />
Leaf length, ern 81 1 827 723 554-1130<br />
Leaf breadth, em 8.2 5.4 50 5.5-90<br />
_._-<br />
Table<br />
8 : Distribution pattern of 3-way cross F 2 plants in different classes.<br />
Characters<br />
2<br />
Class interval<br />
3 4 5<br />
Plant height, ern 290.1-320.0 320.1-350.0 351.1-380.0 3801-4100 410.1-470.0<br />
[36] [44] [20] [12] [4]<br />
Culm thickness, ern 1 21-1 40 1011-1.60 1.61-1.80 1.81-200 2.01-2.20<br />
[44] [40] [16] [12] [41<br />
Leaf number 10.1-120 12.1-14.0 /4.1-16.0 16.1-18.0<br />
[48] [36] [24] [8]<br />
Leaf length, em 55.1-70.0 70.1-85.0 85 /-100.0 100.1-1150<br />
[8] [40] [48] [20]<br />
Leaf breadth, em 5.1-5.-J 61-70 7.1-80 8 1-9.0<br />
[16] [401 [321 [28]<br />
Figures in Fa 'enthesis denote the number of phnrs.:<br />
( 34 )
Table 9<br />
Transgressive segregants for culm <strong>and</strong> leaf charaqters.<br />
_.,.,<br />
Characters<br />
%.individ~alE showing .ransgressive<br />
segregation<br />
Positive<br />
Negative<br />
Plant height<br />
Culm thickness<br />
68.96<br />
27.58<br />
Leaf number<br />
Leaf length<br />
48.27<br />
62.07<br />
24.13<br />
13.79<br />
Leaf breadth<br />
24.14<br />
------------------------------.-----<br />
2.3 Production <strong>and</strong>· quality breeding in fodder oats (Avena sativa 1.)<br />
CR. N. Choubey <strong>and</strong> S. K. Gupta)<br />
(a) Collection, evaluat ion <strong>and</strong> maintenance of germplasm :<br />
Two spring oat genotypes, namely, Pennline-6571 (EC. 159605) <strong>and</strong> Pennlo<br />
(EC. 159606) procured from Pennsylavania (USA) were grown-for .their initial evalution<br />
with respect to different plant attributes. Pennline-fiS'Zl was found to be very<br />
leafy <strong>and</strong> early flowering in comparison to Pennlo. Pennline was also USed in crossing<br />
programme as a promising parental stock so as to breed high yielding .forage"~ats. In<br />
addition, 500 oat lines were grown for maintenance <strong>and</strong> future USe.<br />
(b)<br />
Hybridization <strong>and</strong> h<strong>and</strong>ling of segregating progenies:<br />
.<br />
Sixty crosses included multiple crosses, double crosses <strong>and</strong> single crosses 'irivolving<br />
adapted cultivars <strong>and</strong> new promising parental lines viz. Zenshin, Moiwa, Miyutab:.,<br />
were attempted.<br />
35 )
Under interspecific hybridization programme, back crosses were attempted with<br />
A. sativa parents OS-6, PO-3. UPO-94 <strong>and</strong> JRO SOL Amphiploids developed between<br />
A. magna <strong>and</strong> A. sativa were grown to attempt back crosses as well as selfing so as to<br />
recover stable types combining the characteristcis of both the species.<br />
The F 1 hybrids raised <strong>and</strong> segregating progenies h<strong>and</strong>led were 32 crosses in F 1<br />
generation, 39 crosses in F 2 generation, 22 progenies of 15 crosses in Fa generation<br />
(single seed descant method), 5 progenies of 7 crosses in F. 1 generation <strong>and</strong> 16 progenies<br />
of 5 crosses in F 6 generation.<br />
(c)<br />
Advanced yield evaluation trial:<br />
A single cut trial consisting of six promising oat selections developed through hybridization<br />
was conducted in RCBD with 3 replications. The variety OS-6 was used<br />
as the check. The maximum forage yield was recorded by UPO 50 x OS-7-1-1-3<br />
indicating 9.8% superior ity over the check. Rest of the entries did nat perform well<br />
in comparison to OS-6.<br />
(d)<br />
Testing of oariet ies under All InIta Coordinated forage Project:<br />
0) Three newly developed strains, namely, JRO 824, JRO 825 <strong>and</strong> JRO 826 were<br />
identified for testing in initial evaluation trial both under single Cut <strong>and</strong> two cut<br />
management systems<br />
(ii) Based on their superior performance in 1983-84, the strains JRO 801,JR::> 810,JRO<br />
813, JRO 816, JRO-817, JRO-822 <strong>and</strong> JRO-823 were promoted to final evaluation<br />
trial for further testing under single cut system, The oat strains JRO 801, JRO<br />
813, JRO-816, JRO-8Il <strong>and</strong> JRO-822 were included in final evaluation trial<br />
under two-eut system.<br />
2.4 Development of high yielding <strong>and</strong> nutritious varieties of fodder b:ljra tPenntsetum<br />
americanumy<br />
(S. K. Gupta <strong>and</strong> R. N. Chaubey)<br />
Stabltzation <strong>and</strong> evaluation of new populations ..<br />
Four new populations, developed during 1983, were subjected to cluster bagging <strong>and</strong><br />
( 36 )
intermating. These p0I;>ulations were also tested for their yield potential usillg. 'JF;a SOl' as the<br />
check. JFB 832 <strong>and</strong> JFB 833 were ohserved much superior to the check variety.<br />
Final yield eoaluation :<br />
The populations JFB-8l4, JFB-8l5, J1"'B-l$16, JtB-lH'I, JtB-lS~~, JFfl-82l, JFB-822,<br />
JFJ:'-823, JFB-824, JFB-825 <strong>and</strong>, JFB-826 were evaluated for their forage yield potential.<br />
JFB-8l7 <strong>and</strong> JFB-824 were found to show top performance. However, all these populations<br />
except JFB-8l6, JFB-825 <strong>and</strong> JFB-826 wer~ multiplied for further testing at all India level.<br />
H<strong>and</strong>ling of F 1 hybrids <strong>and</strong> segregating generations:<br />
Fifty three hybrids involving ms ,8IB <strong>and</strong> various germplasm lines",' were grown.<br />
Out of these, 18 were selected for advancement to F 2<br />
generation for development of inbred<br />
lines.<br />
The F I hybrids involving :various brachytic'' (i'~arr' 'jin'es':~ere ,dwra,rf.<br />
t i ,0 ~ i :'. t .t,.,-, r:· -:" ,I: ' ,<br />
that 'the dwarfism in these lines was due to the same brachytic gene (db).<br />
;.\<br />
Tb.is indicated<br />
Thirty eight F 1 hybrids involving brachytic dwarf mutant lines. <strong>and</strong> tall'germplasm<br />
lines were tall <strong>and</strong> Vigorous.<br />
I' "<br />
Selected hybrid plants were selfed So as to raise F 2 generation.<br />
Nine F 2 progenies obta'ncd from F 1 hybrids involving db dwarfs <strong>and</strong> nine selected<br />
tall lines were grown. Out of these, one segregant from JMB-p-42-7-2'x Abohar local<br />
(F 2 ) was found to be most vigorous-<strong>and</strong> leafy <strong>and</strong> was selected for further advancement.<br />
Selection against protogyny :<br />
SAP 81-1 was found to be true breeding for reduced protogyny. However, this line<br />
flowered earlier than the ergot season <strong>and</strong> thus-.could not be i ti~it~d;'~g~insl artificial<br />
inoculation: .,,' " ,.'
,. were intermated to develop new improved forage populations. These new experimental<br />
varieties have-been named as JFB-841, JFB-842, JFB-843 <strong>and</strong> JFB-844. Four sweet stalk<br />
lines viz., IP-3471, IP-3481, IP-3509 <strong>and</strong> IP-3593 were intermated to develop a synthetic<br />
population, JFB-845.<br />
Evaluation ofprogenies of the interspecific cross Penniseturn americonum'
469,470,471, 472, 473, 512, 518 <strong>and</strong> 554 exhibited very good plant spread <strong>and</strong> IL 526<br />
showed very high degree of branching.<br />
Advancing hybrid generation<br />
The F 2 generation of two crosses 42-1 X IL 452 <strong>and</strong> 42-1 X IL~ 454 was raised. A good<br />
degree of segregation for different phnt traits was noticed in population from cross 42-1 X<br />
452. Promising individual plants were selected for earliness with a view, to develop short duration<br />
varieties. Striking plants with erect growth habit were identified in order to develop varieties<br />
for mixed cropping system. A few broad leaf types were also selected. The seed from<br />
individual plants was harvested separately for raising the F 2 generation next year.<br />
3.3 Genetic improvement of Trifolium species with special reference to Egyption clover.<br />
(G. P. Shukh)<br />
Varietal eualuation<br />
i Evaluation of 20 entries in a replicated trial indicated that there was significant va iation<br />
in plant height, no. of leaves/plant, leaf wt./plant, stem wt./plant <strong>and</strong> fodder yield/plant.<br />
Th'ee cnuies, namely, CPC3. JHB 137 <strong>and</strong> JHB 64 surpassed the better performing' checkI<br />
WarJa-i Six entries CPC-3l, JHB-137, JHB-64, JHB-44, JHB-48 <strong>and</strong> JHB-220 showed<br />
si;nific intly better yield performance as compared to BL-·l (check).<br />
ii Evaluation of 20 entries grown in wider row spacing indicated significant variation for<br />
plant height, no. of leavesjplant, leaf wt./plant, stem wt.1 plant <strong>and</strong> total green wt./plant. The<br />
variation in no. of branches/plant, however, was found to be non-significant. The values of<br />
coefficient of variation ranged from 1.6.18 to 31.75 per cent. Eleven entries as compared<br />
to Wardan <strong>and</strong> twelve entries as compared to BL-1 were found to be superior in fodder<br />
yield.<br />
Evaluation of Us progenies<br />
Evaluation of 30M 3 progenies derived form the irradiated material of 5 ,.;varieties namely,<br />
UPB 101, 103, C-3-94, JB-l <strong>and</strong> Mescavi each treated with 10, 20, 30, 40, 50, 60, 70 kr of<br />
gamma rays indicated that plant height <strong>and</strong> branches/plant showed significant variation with<br />
cv. values of 13.47 <strong>and</strong> 17.14, respectively. No significant variation was obse.ved for leaf<br />
number, leaf weight, stem weight an I total fresh weight p.;r plant.<br />
Biometrical studies<br />
The varieties differed significantly for number of branches/plant, green wt./plant <strong>and</strong> dry<br />
wt /plant in M 1 but only for green wt./plant in M2 generation. Variety x gam rna rays<br />
( 39 )
interaction was found to be significant for plant height, number of branches/ plant, number of<br />
inflorescences/plant, dry wt./plant in M 1 <strong>and</strong> for number of branches/plant, number of leaves/<br />
plant, green wt.jplant <strong>and</strong> dry wt /plant in M 2 generation.<br />
The correlation studies indicated that dry wt./plant was positively associated with plant<br />
height, number of leaves/plant <strong>and</strong> green- wt.jplant in M 2 • The component characters, viz.,<br />
plant height, number of branches/plant <strong>and</strong> number of leaves/plant showed positive association<br />
among themselves. The significant correlations between dry wt./plant <strong>and</strong> component<br />
characters indicated ample pcssibilities to imr rove dry matter yield through the selection for<br />
component characters.<br />
The multiple regression equations, 'multiple correlations <strong>and</strong> coefficients of determination<br />
were worked out using the data of M 2 generation. The value- of coefficient of determination<br />
(75.4) indicated that selection for plant height, number of branches/plant, number of leaves/<br />
plant <strong>and</strong> green wt./plant had the maximum impact on increase of forage yield. Simultaneous<br />
selection for these characters' appeared to be useful for improving dry matter content.<br />
3.4 Varietal construction for yield <strong>and</strong> resistance irJ Dolichos complex- tLablab purpureusy<br />
(D. N. Singh <strong>and</strong> C. B. Singh)<br />
Germplasm screening<br />
Seeds of 102 plants selected from 45 cultivars were grown in progeny rows to identify<br />
their genetic nature <strong>and</strong> for screening the superior genotyp~s. Selection was applied between<br />
<strong>and</strong> within the progeny. Data were recored for plant length, no. of branches, no. of nodes.<br />
no. of effective inflorescences, pods on the mam branch, pods per plant <strong>and</strong> dr)' weight of<br />
fodder as well as pods on five selected plants of 74 selected progenies <strong>and</strong> is under analysis.<br />
Based on plant <strong>and</strong> pod characters, maturity <strong>and</strong> tolerance to<br />
were identified as under :-<br />
disease, certain genotypes<br />
Maturity (earliness)<br />
(lateness)<br />
Tolerance (disease)<br />
(cold)<br />
f-16, S-32-l, S-22, S-3l, S-23-l <strong>and</strong> 8-131<br />
S-36, S-20 <strong>and</strong> S-43.<br />
8-130 <strong>and</strong> S-20.<br />
S-36, 8-27 <strong>and</strong> S-FVT<br />
( 40 )
Plant type (fodder)<br />
(grain)<br />
(dual purpose)<br />
S-21-1, S-26-1, 38-1, 30~1 <strong>and</strong> S-131-IV<br />
S-13-1, 27-1, 28-II <strong>and</strong> 31-IV<br />
S-·2721...::1, S-33, S-2216-L<br />
Varietal evaluation:<br />
Twenty cultivars of field bean (L. purpurcus var, -lignosus) with promising selection<br />
S-2214-II as check were evaluated in a replicated trial The cultivars showed significant difference<br />
for fodder <strong>and</strong> grain yield. For grain yield, four culti vars, viz., S-32, S-18-1, S.38-II<br />
<strong>and</strong> S-13-1 showed significant superiority over the check. However, none of the cultivars was<br />
found to be superior for fodder yield over check, BJ.s~d on total dry matter yield, the<br />
cultivars S-18-1 <strong>and</strong> S-36 were the promising types for dud purpose.<br />
Inter specific hybridization:<br />
Interspecific hybridization between cultiv ~r3 belonging to var. J.jgnosus <strong>and</strong> var, typicus<br />
was attempted. F 1 seeds of four hybrids, i, e., S-1649-1 ,S-22, S-1049-1 X S-33, were obtained<br />
for raising F 2 generation next ye:tr.<br />
Mutation breeding :<br />
Different sets of thirty healthy <strong>and</strong> uniform sized seeds of two selections, viz., S-2214<br />
1I <strong>and</strong> S-1649-1 treated with 0.2% EMS solution for 6, 12, 18 <strong>and</strong> 24 hrs were sown alongwith<br />
the controls. Observations on seed germination, seedling gr.owth, <strong>and</strong> plant phenotype<br />
indicated that treatments over 12 hrs had injurious effects. Seedlings of S-1649-1 showed rehtively<br />
high response to short duration treatments, Treatment for '18 <strong>and</strong> 24 lus)n case of<br />
S-1649-1 <strong>and</strong> 24 hrs in case of S-2214-1I were found to be lethal The mutant types were<br />
sel ected <strong>and</strong> harvested for further testing.<br />
M 2 seeds of individual plants of the cultivars S.2214-n trea.ed with 25,30 <strong>and</strong> 35 kr<br />
<strong>and</strong> S-1649-1 treated with 25 <strong>and</strong> 30 kr of gimmi rays were sown in progeny rows. Single<br />
rows of checks were also' grown. Observ.itions on plant growth.flowering period, tolerance<br />
to diseases <strong>and</strong> maturity of the plants did not show any outst<strong>and</strong>ing aberrant mutant. However,<br />
few plants appearing relatively early <strong>and</strong> vigorous in foliage over cheks were harvested<br />
separately for further studies.<br />
H<strong>and</strong>ling of segregating geflration :<br />
Fa seeds of 4 to 8 selected plants of nine crosses Were sown in progeny rows. Each-row<br />
consisted of 12 to 15 plants to get an idea about the genetic homozygosity <strong>and</strong> phenotypic<br />
( 41 )
.appearance of the family. Progenies of the plants belonging to crosses S-22 ~4-I~XS-31 a~d<br />
S~1649-1 X 20 selected for resistance [in F 2<br />
] also showed incidence of the mosaic diseases which<br />
showed interaction between the pathogens <strong>and</strong> the host genome.<br />
3.6 Breeding varieties in Cajanus cajan for fodder <strong>and</strong> grain yield.<br />
{c. B. Singh)<br />
Germplasm evaluation:<br />
The gerrnplasm comprising 210 l<strong>and</strong> races including descript <strong>and</strong> non-descript types fr~m<br />
north central India was evaluated in replicated trial on red s<strong>and</strong>y soils under rainfed conditions<br />
for high biomass production inclusive of pulse, forage <strong>and</strong> fuel attributes <strong>and</strong> 10 test<br />
their suitability under different cropping situations. Data recorded in different characters is<br />
in<br />
he process of analysis.<br />
Varietal trials:<br />
Comparative evaluation trials were laid out with pure <strong>and</strong> mixed cropping of 50 selected<br />
lines of pigeon pea with different crops such as Jowar, Til <strong>and</strong> Urd. In the first trial, the<br />
data on flower initiation <strong>and</strong> completion were recorded until December, 84. Based on this<br />
data, the cultvars were grouped as short season, mid season <strong>and</strong> late season crop. The yearly<br />
Season types completed fruit maturity by December, while the late types were still in flowering<br />
during this period.<br />
In the second trial involving pure <strong>and</strong> mixed cropping tr~atments,'extensive [data on<br />
17 plant characters was recorded on five r<strong>and</strong>omly selected plants of each line at the flowering<br />
stage. Wide diversity was observed in days to flowering, total number of nodes on the main<br />
shoot, number <strong>and</strong> position of branching, angle of branching, length of main shoo: showing<br />
branching <strong>and</strong> leaf, haracters. Although there was no apparent effect of mixed cropping of<br />
Cajanus lines with shorter growing crops like Til <strong>and</strong> Urd, but when cropped with taller<br />
growing Sorghum plants, all the metric traites show ed lower expression rhan t1:e Furt crcp<br />
of Cajanus. Mixed cropping with Sorghum delayed initial flowering in alI the Cajanus lines<br />
by several weeks. Amongst the material tested, late types appeared to be comparatively<br />
better adapted to mixed cropping wi h sorghum as compared to early types.<br />
( 42 )
.PI-4: BREEDING VARIETIES OF PASTURE SPECIES INCLUDING TREES AND<br />
SHRUBS FOR YIELD AND PERSISTENCE<br />
4.1 Varietal improvement for forage yield <strong>and</strong> quality in range grasses.<br />
[Bhag Mal <strong>and</strong> U. S. Mishra]<br />
Cenzhrus species .~<br />
1. The germplasm comprising ninety four lines of Cenchrus ciliaris was evaluated for<br />
different fodder yield traits. There was a high degree of variation for plant height, leaf<br />
number, leaf length, leaf width, tiller number <strong>and</strong> green fodder yield per plant in both the<br />
cuts. The pooled green yield of two cuts varied from 117.0 g to 1846.7 g per plant; the highest<br />
being recorded for <strong>IGFRI</strong>-3078-I. This was followed by <strong>IGFRI</strong>--4109-1 (1826.7 g), <strong>IGFRI</strong><br />
4007-1 (J 800.0 g) <strong>and</strong> S-12 (I 735.4 g). These four genotypes exhibited better performance in<br />
both the cuts as well as on pooled basis.<br />
2. All the 44 lines of Ccnchrus seti gerus were evaluated for fodder yield <strong>and</strong> its attributes.<br />
Considerable range of genetic variation was observed for plant height, tiller number, 'leaf<br />
length, leaf" ir'th <strong>and</strong> 111'( en fc dde r yield, The pooled yield of green matter in two cuts varied<br />
from 50.0 g to 755.0 g. The highest green matter yield was produced by <strong>IGFRI</strong>--2758-1<br />
(755 0 ~) which was followed by <strong>IGFRI</strong>-4058-1 (705.0 g) <strong>and</strong> <strong>IGFRI</strong>-685 (703.4 g). These<br />
three genotypes proved superior in both the cuts as well as on pooled basis.<br />
. ,<br />
3. The promising strains of C. ciliaries, viz., <strong>IGFRI</strong>-3105, <strong>IGFRI</strong>-3132, <strong>IGFRI</strong>-3813<br />
<strong>and</strong> <strong>IGFRI</strong>-I03 were multiplied.<br />
Dichanthium species;<br />
1. A total of 90 lines of Dichanthium representing different species, viz., D. onnulatum,<br />
D. papilosum, D. humtlis, D. arist atum, D. sereceium <strong>and</strong> D. supercellatum as well as the<br />
natural hybrids between Dichanthium annulatum <strong>and</strong> Bothriochloa intermedia wereevaluste'd<br />
in two cuts. Two genotypes, viz. 26 B<strong>and</strong> <strong>IGFRI</strong>-589 showed superior performance in<br />
both the cuts. On pooled basis, the highest green yield Was given by 26 B of D. papillosum<br />
(393.4 g), which was followed by <strong>IGFRI</strong>-501 of D. annulatum (368.4 g), 26 A of D •. papillosum<br />
(355.0 g), <strong>IGFRI</strong>-610 (335.0g) <strong>and</strong> <strong>IGFRI</strong>-576 (328.4 g) of 1) .. annulatum,<br />
43 )
2. Three variants of D. annulatum (<strong>IGFRI</strong>-12-1, 486-1 <strong>and</strong> 491-1), one of D. sereceium<br />
(<strong>IGFRI</strong>-2954-1) <strong>and</strong> one natural hybrid between Dichanthium <strong>and</strong> Bothriochloa continued to<br />
show superior performance <strong>and</strong> will be tested on large scale for yield potential.<br />
Pennisetum pedicellatum :<br />
Promising strains, viz., <strong>IGFRI</strong>-3808, 42-1,32-1, 56-1,2-2-2,4-1-2 <strong>and</strong> 4-2-1 were<br />
entered in All India Coordinated trial for multi-Iocauonal testing. Out of these, <strong>IGFRI</strong>-43-1<br />
<strong>and</strong> 4-2-1 showed superior performance at several locations in the country.<br />
4.2 Genetic implovement of pasture legumes through mutation breeding.<br />
(C. B. Singh <strong>and</strong> D. N. Singh)<br />
Macroptilium atropurpureum cv.<br />
Siratro<br />
M4 generation of 16 lines derived from the original group of semi-sterile plants from<br />
M 1 generation <strong>and</strong> 64 lines derived from fertile plants of earlier generation were grown in<br />
single row plots. M 4 did not show any morphological differences between the sterile <strong>and</strong><br />
fertile derivatives of the original M 1 generation with respect to flowering behaviour until the<br />
month of September.<br />
Stylosanthcs hamata<br />
The bulk seed derived from M 3 generation was grown in M 4 this year. The old plots<br />
of M 2 generation possessed biennial plants showing aggressive growth. Majority of seedlings<br />
arising from seeds shattered last year did not survive due to competition from weeds at<br />
both locations, viz., red s<strong>and</strong>y soil <strong>and</strong> calcarious soil areas.<br />
PI-5<br />
PHYLOGENETIC STUDIES IN FORAGE AND PASTURE SPECIES<br />
5.2 Introducticn of genetic variability <strong>and</strong> selcctlon of diccirable plant typos in some<br />
fodder crops through mutation.<br />
(M. G. Gupta)<br />
Studies on seed germination <strong>and</strong> early seedling growth<br />
Seeds of S. sesban were treated with 0.025% 0.05% & 0.075%, 0,1% Ethyl methane sulphonate<br />
(EMS) <strong>and</strong> Nitrosomethyl urea (NMU) for three: hours. The higher concentrations<br />
44 )
of both EMS <strong>and</strong> NMU had very pronounced effect on seed germination in petri dishes (controI80%,<br />
0.075% EMS-35~;';, 0.075%, 1'.tIU-25%,0.1% EMS-18%, O.I%NMU 15%), shoot <strong>and</strong><br />
root lengths (control-7.0 <strong>and</strong> 3.0 ern, 0.075% EMS-2.0 <strong>and</strong> 1.15 em, 0.075 % NMU-2.3 <strong>and</strong><br />
0.6 Col, 0.1 % El\iS-1.25 <strong>and</strong> 0.7 ern, 0.1 % NMU-l.O <strong>and</strong> 0.5 cm <strong>and</strong> dry matter weight<br />
(contrcl-65.0 mg, 0.075% EMS-56.0 mg, 0.075% NMU 52.0 mg, 0.1% EMS-50.5 mg <strong>and</strong><br />
0.1~;'; NMU 51.5 mg) of the seven day's old seedlings.<br />
In pot culture experiment, the seed gerr in .tion percentage was significantly affected<br />
by -u the doses of both EMS <strong>and</strong> NMU except 0.025~;'; EMS & NMU (contro-I72.0%, 0.05%<br />
EMS-50.0% 0.05% NMU-42,5%, 0.075% EMS-27.0%, 0.075% NMU-19.0% 0.10% EMS<br />
11.15% <strong>and</strong> 0.10% NMU-13.5%). The survival percentage of the forty five day old seedlings<br />
was only 10% in 0-1% NMU <strong>and</strong> 15% in 0.1% EMS treatments. Higher concentrations<br />
of the mutagens had significant effects on shoot <strong>and</strong> root lengths (control--14.0 em <strong>and</strong> 30.0<br />
cm;O.1% EMS-9.5<strong>and</strong> 12.0cm<strong>and</strong> 0.I%NMU-I0.5<strong>and</strong> 8.5cm) <strong>and</strong> dry matter weight<br />
(control-1612.0 mg, 0.1% EMS-365.0 rnj aid 0.1 ~{, NvlU 3gS.0 mg) of the forty five days<br />
old seedlings.<br />
Stud!es all pIalit aftributes :<br />
Higher concentrations of EMS <strong>and</strong> NMU had a pronounced effect on all the plant<br />
attributes such as plant height (control-515 Col, 0.1% EMS-400 cm; 0.1% NMU-380 ern)<br />
above ground biomass (control-5A kg, 0 1% EMS 4.2 kg, 0.1% NMU 4.1 kg), pod length<br />
control-17.0 cm 0.1% EMS-14.3 ern, 0.1% NMU-8.5 ern), seeds per pod (control-28.0;<br />
0;1% EMS-l1.0; 0.1~~ EMS-I1.0 .1% NMU 7.6\, seed yield per plant (control-53.0 g, 0.1%<br />
EMS 25.0 g; 0.1% N\tIU 13.6 g) ani pollen fertility (c:>ntrol-921;:;; 0.1% EMS-40.0% <strong>and</strong><br />
0.1 % NMU-41%) in 0.1% NMU treatments some of the floral buds though grew to maturity<br />
but shrivelled without blooming <strong>and</strong> pod formation.<br />
Cytological studies<br />
Mitosis Treatment of EMS <strong>and</strong> NMU caused irregularities in the dividing<br />
root tip Cells <strong>and</strong><br />
chromosomal aberrations in all the treatments. when compared with the .cgntrol (contr()l-l.O%<br />
0.025% E\tIS-6.0~;';, 0.025% NMU-5.0~~, 0.05% EMS-16.0%, 0.05% NMtJ-fO:8%,,'O,075%'<br />
E.'v1S-25.5% 0.075% NMU-27.C%, 0.1% EMS 33.0% <strong>and</strong> 0.1% NMU-27.6%).<br />
Aberrations such as chromosomal chattering, breakage, laggards <strong>and</strong> fragments, non-dis junetions<br />
<strong>and</strong> bridges were of common occurrence in the treated material. Clu:npin g <strong>and</strong> stickness<br />
were commonly observed in o.075%r1d 0.1% of NMU treatments.<br />
( 45 )
Meiosis : Considerableamount of abnormalities in the dividing PMC were observed<br />
both at metaphase-I <strong>and</strong> anaphase-I stages in the mutagen treated materials. Chromosomal<br />
aberrations, formation of sticky ends in chromosomes leading to chains <strong>and</strong> rings formation<br />
were of common occurrence in all the treatments with the increasing frequency in higher<br />
concentrations of the treatment of EMS <strong>and</strong> NMU. Formation of sub-normal microcytes<br />
also occurred due to the treatment of mutagens.<br />
5.3 Cytogenetical studies in forage legumes.<br />
(S. N. Tripathi)<br />
Interspecific hybridization in Atylosio species.<br />
1. The selected F 4 plants originated from the cross Atylosia albicans x Atylosia scarabaeoides<br />
were studied for their meiotic behaviour alongwith palynological <strong>and</strong> morphological<br />
characters with special reference to forage attributes. The data are summarised below.<br />
Average Pollen No. of No. of<br />
Plant chromosome sterility primary secondary Growth habit<br />
nos. association branches branches<br />
10-1-1 10 .OIl+2.0 11.25 260 59.0 Semi-erect with high leafiness,<br />
13-3-4 9·OIl+4.0I 28.75 16.0 60.0 Erect with branch ends<br />
drooping.<br />
14-1-2 9.5II+3.0I 30.50 19'0 67.0 Spreading with profuse<br />
branching.<br />
15-1-5 10.5II+1.01 8.00 23.0 68.0 Erect (bushy)<br />
18 -1-1 10.0II+2.0I 14.00 20.0 67.0 Semi-erect with main<br />
stem more woody.<br />
18-1-3 8.4II+5.01 42.50 18.0 69.3 Semi-erect <strong>and</strong> profusely<br />
branched.<br />
( 46 )
Plants having high degree of chromosome pairing as evidenced by the bivalent forma<br />
tion at metaphase--I, coupled with important forage characteristics, viz., more leafinessj<br />
branching, were selected. The cytological stability was recorded in some of the selected<br />
plants raised through single seed/pod descent. Further scope lies in selecting highly nutritrve<br />
cultivars as Atylosia albicans is a good source of protein. Both these species have showh<br />
much homology in their chromosome complements <strong>and</strong> thus indicated close inter-relationship<br />
between them. Recovery of plants with different growth habits has opened the scope for<br />
differential utilization in cropping system. Selected F 5 plant progenies were raised.<br />
2. The tri-specific hybrid (Atylasia albicans X Atylosia scarabaeoidesy »Atylosia cajanitolia<br />
(Heines) was raised. The parental species differing in morphological traits 'are reported to<br />
S~10W interrelationships. The chromosome pairing during meiosis in trispecific F 1 hybrid,<br />
revealed the existence of homology in their chromosome complements. F 1 (trispecific cross)<br />
was recorded to be semi-fertile.<br />
Inter-generic hybridization far i mprooement of Cajanus cajan :<br />
The selected plant types in F 5 generation of the cross Atylosia cajanitolia x Cajanus<br />
cajan were studied for, heir cytornorphogenetic traits which are summarized as follows.<br />
Plant No. Average Pollen Growth habit<br />
Chromosome sterility<br />
assoc.ation (%)<br />
at Metaphase-I<br />
_<br />
--------,------"------- ---<br />
133-9 11,0IIs 1.80 Erect, determinate early maturing<br />
143-4 10.8Il+0'41 7.00 Bushy, dwarf, determinate <strong>and</strong> early<br />
maturing.<br />
139 1 10.0II+2.0I 29.00 Spreading, more basal branching, indeterminate<br />
<strong>and</strong> late maturing.<br />
92-2 1I. OIl 2.90 Erect, profuse branching, late mumring.<br />
10.5Il+l.Ol 6.75 Bushy, dwarf, determinate <strong>and</strong> medium<br />
maturing.<br />
135-1 11.001 2.50 Main stem more woody, erect, determinate<br />
<strong>and</strong> medium maturing.<br />
5-1<br />
11.0Il 1 20<br />
More leafiness, profuse branchmg high<br />
pod setting, early mturing,<br />
._-------------------------------- ------<br />
( 47 )
The chromosome pamng observed during mid pachytene between these two species oj<br />
different genera revealed a close relationship amongst them which resulted in the production<br />
of different plant types with varied morphogenetic traits The fertile hybrids scored were selected<br />
for their propagation <strong>and</strong> use in the next generation.<br />
Cytological studies in TrifoHum species<br />
Meiotic studies were undertaken in a tetraploid<br />
(cv. Halfa) <strong>and</strong> two diploid Tielex<strong>and</strong>rlnum (cv. 99-1) <strong>and</strong> Tcsemipilosum (cv. safari). The<br />
cytological investigations revealed that the tetraploid (T. repens)<br />
(211 = 4 x = 32) species Trifolium repens<br />
possessed 1-2 nucleoli <strong>and</strong><br />
the presence of 1 IV + 14 II's was met within majority of the pollen mother cells on an<br />
average. However, 8II's were seen in both the diploid species. Attempts are underway for<br />
making interspecific crosses <strong>and</strong> induction of polyploidy in these Triiolium species.<br />
•<br />
5.4 Studies on induced polyplords of forage legumes<br />
(S. N. Zadoo)<br />
Studies on C 2 progeny of induced tetraploids of Sesbania tctraptcra<br />
C 2 progeny of Sitetraptera [2n =4 X<br />
=24] was studied for meiotic behavior. The average<br />
association per cell were observed to be 3.6 quadrivalents + 0.3 trivalents + 3.5 bivalems +<br />
1.26 univalents, The maximum possible association of 6 quadi ivalents was observed in 13.3<br />
per cent cells while an association of 12 bivalents was not observed in any cell. A maximum<br />
of 8 bivalents was, however, observed in 13.3 per cent cells. Although there was a decrease<br />
in quadrivalent frequency <strong>and</strong> consequent increase in bivalent frequency from Co to C 2 Yet it<br />
did not affect the fertility status of C 2 progeny, as only 1 to 2 seeds per pod could be<br />
harvested.<br />
Studies on C 6 progeny of induced tctraplolds of Atylosla scarabaeoids<br />
C 6 progency of colchicine induced tetraplods of At ylosia scarabaeodies was studied<br />
for pollen stainability <strong>and</strong> number of seeds per pod, Pollen stuinabiiiry varied from 29.2<br />
to 64.24 percent in tetraploids as compared to 89.5 percent of diploid control. The number<br />
of seeds per pod showed a range of 0-5 <strong>and</strong> average values of different plants varied from<br />
1.33 to 2 83 as compared to 4.23 of diploid (control). To find out the causes of such variation<br />
in fertility, chromosomal constitution of individual. plants representing different fertility<br />
levels was worked out, All the plants studied showed euploid chromosomal constitution<br />
of 2n=44, compared to 2n=22 of the diploids. Varying number of quadrivalents, trivalents,<br />
bivalents <strong>and</strong> univalents were observed in different plants. The maximum number of<br />
( 48
quadrivalents per cell was observed to be 10, The other extreme of chromosomal assciations<br />
was represented by 22 bivalents, Incidentally, the highest association of 10 quadrivalents <strong>and</strong><br />
the lowest association of 22 bivalents was observed in different cells of same plant C 6-23 (table<br />
l Oj'This indicated that different associations of chromosomes are realized at r<strong>and</strong>om <strong>and</strong> have<br />
no re'ationship with chromosome size which is small in this genus. The extent of multivalent<br />
association does not appear to have any relationship with the fertility of the carrier. No<br />
relationship was found between pollen stainability rercenta£e <strong>and</strong> seed setting ability in<br />
induced tetraploids.<br />
Table 10 : Frequency of chromosome; association vis-a-vis fertility in<br />
progeny of Atylosia scarabaeoides,<br />
some plants of C6<br />
Pla'lt Chromosome Associations Pollen Seeds!<br />
No. number IV HI-II I stainability pod<br />
(2n) %<br />
C 6-5 44\ 5-6 10-12 29.20 0-5<br />
(5.50) (I 1.00) (2.88)<br />
C 6 - 13 44 5-8 0-1 6-10 0-1 33.80 0-2<br />
(6.60) (0.33) (8.00) (0.33) (1.30)<br />
C 6-23<br />
44 0-10 2-22 64.24 0-4<br />
(5.80) (10.3) (1.89)<br />
C 6-25<br />
44 6-7 7-10 0-2 0-4<br />
(6.66) (8.33) (0.66) (1.89)<br />
C 6-33<br />
44 4-9 0-1 4-12 0-1- 31.14 0-2<br />
(7.00) (0.33) (7.33) (033) (1.33)<br />
C 6-59<br />
44 2-6 10.18 36.08 5.00<br />
(4.00) (14.00) (single pod)<br />
Control 22 11.0 89.50 . 2-6<br />
(Diploid) (4.23)<br />
(The figures in parentheses represent average values)<br />
( 49 )
The absence of multiple associations of more than four chromosomes <strong>and</strong> low frequency<br />
of trivalents <strong>and</strong> univalents suggested that the tetraploids had a balanced chromosomal constitution<br />
<strong>and</strong> all the chromosomes are represented four times. Thus, the variation in fertility<br />
. could not be attributed to chromosomal constitution of individual plants.<br />
Seeds from individual plants with varying fertility status have been collected <strong>and</strong> will be<br />
sown in the next season to ascertain if there is a segregation for fertility <strong>and</strong> other parameters.<br />
Hybridization involving natural <strong>and</strong> induced tetraploids<br />
Crosses in different combinations including reciprocals involving induced tetraploids<br />
of S. sesban var. 'bicolor' <strong>and</strong>S'. t etraptera as well as natural tetraploids S. microcarpa<strong>and</strong><br />
S. simpliscula were attempted. The flowers in all the cases fell down within 2-3 days of<br />
pollination.<br />
5.5 Cytogenetical studies on cultivated non-leguminoas fodder crops<br />
(M. N. Prernach<strong>and</strong>rnn)<br />
Panicum sp::cies :<br />
Studies on chromosome number <strong>and</strong> meiotic behaviour of 17 accessions of P. maximum<br />
revealed that all the accessions had the chromosome number 2n = 32 The quadrivalents ranged<br />
from 0 to 7 <strong>and</strong> bivalents from 2 to 16. Pollen mother cells with univalents <strong>and</strong> trivalents<br />
were present in all accessions.<br />
The occurrence of 7 quadrivalents indicated the autopolyploid origin of the taxa which<br />
is presently in the process of natural diploidization as is evident from the range of quadrivalents<br />
from 7 to nil <strong>and</strong> the pres;nce of bivalents up to 16.<br />
Pennisetum species:<br />
Fourteen out of 108 genotypes of P. americanum X P. purpureum hybrids were selected<br />
based on their growth vigour, Ieaflness <strong>and</strong> plant height for further evaluation. A plant inden<br />
• .ified in tred line Jl£-4':-1-6 of P. cmericcnum which lacks in pollen shedding was found<br />
to be panially asynaptic/dcsynaptic. The high percentage of pollen sterility was due to meiotic<br />
abnormalities caused by the resultant univalents. Pollen mother cells of this plant were<br />
having upto 10 univalents alongwith bivalents. The mean chromosome association per cell<br />
was 1.28 ring bivalents+3.l6 rod bivalents+5.12 univalents, The r<strong>and</strong>om assortment of<br />
( 50 )
univalents resulted into pollen with irregular chromosome complement <strong>and</strong> hence pollen<br />
sterility. A few selfcd <strong>and</strong> cross pollinated seeds with lIB-45-1-6 were collected for maintenance<br />
<strong>and</strong> further USe as source of aneuploids,<br />
Using male sterile ICms 81A P. americanum as female parent, interspecific <strong>and</strong> intergenerich<br />
ybridization had been tried with P pedicel/atlim, P. Polystachyon .<strong>and</strong> Cenchrus<br />
ciliaris, No hybrid seeds were obtained <strong>and</strong> hence these were not compatible.<br />
Avena species:<br />
The studies were conducted on A. sativaxA. magna F I<br />
hybrids (2n-;= 35) with five<br />
st-ains of A. sat ita (2n =42) <strong>and</strong> A. magna (2n = 28).TheF 1 with JHO 801 as femal e parent had<br />
the highest number of bivalents <strong>and</strong> lesser number of univalents compared to F I<br />
with OS-6,<br />
OS-7, UPO-94 <strong>and</strong> 160-500. This confirmed that JHO 801 favoured gene exchange from<br />
A. magna to A. sativa due to higher number of crossing overs: :'. . .. "..,c.<br />
T1:e F I h)brids were seIf sterile. The sterility barrier has to be overcome for gene<br />
transfer from A. magna to cultivated A. sativa. By using a 2% colChi~ine by capillary method<br />
shoot meristern, it was possible to obtain such amphiploids in hybrids with OS-6, UPO-94<br />
<strong>and</strong> JHO-801. The seedlings were vigorous with thickened leaves compared to the parental<br />
species. The amphiploids are expected to be fertile <strong>and</strong> by using it as a bridge, it will be<br />
possible to transfer desirable A. magna genes to A. suiioa.<br />
Back crossing of the F 1 hybrids with A.. sativa pollen was done extensively. Few seeds<br />
were obtained in hybrids with UPO-94, OS-6 <strong>and</strong> JHO-801. This showed that even though<br />
pollen is sterile, occas.onal functional female gametes are formed in the PI hybrid. These<br />
back cross hybrids also will have way for introgressicn of advantageous wild genes from<br />
A. magna to cultivated oats.<br />
Cytology of F I <strong>and</strong> F 2 interparietal <strong>and</strong> interspecific hybrids:<br />
The meiotic behaviour ofFj plants with dwarf palestine variety of A. satica having<br />
glume less spikelets <strong>and</strong> compact panicle with A. sativa strains IGO 1094 <strong>and</strong> UPO 160 <strong>and</strong><br />
A. nuda (2n =42), hull less oat with OS-6 were found normal with 21 bivalents <strong>and</strong> normal<br />
tetrad formation. Normal seed get was also observed in the F 1 plants.<br />
Thi rty plants each of OS-6 x 160-500 intervarietal <strong>and</strong> JHO-802 x A. sterilis interspecific<br />
F2 were screened for chromosomal abnormalities. Although the F I plants had meiotic<br />
irregularities, the F 2 plants had normal chromosome complement <strong>and</strong> hence normal meiosis<br />
( 51
which indicated that gametic selection against irregular chromosome numbers would have<br />
taken place.<br />
Three-style pistil in Aisatioa<br />
This spontaneous mutant character observed in A.sativa strain·OS-8 may be of recessive<br />
nature since the F l hybrid between three style plants <strong>and</strong> normal plants had only normal two<br />
styles in its florets. The F l plants had normal meiotlc behavioua with 21 bivalents as that in<br />
mutant <strong>and</strong> normal parents. This showed that no chromosome structural changes were<br />
involved.<br />
The F 2 progeny of plants with three style pistil raised from the primary, secondary <strong>and</strong><br />
tertiary seeds had no significant difference in the percentage of three style pis tilled florets <strong>and</strong><br />
all the plants had three style pistil character as shown below.<br />
Primary Secondary TertialY Total<br />
seeds seeds seeds<br />
%of 3 styled primary florets 26.7 30.6 39.9 31.96<br />
%of 3 styled secondary florets 8.7 2.9 5.9 5.96<br />
There was significant difference in three style pistil character with secondary florets with<br />
very low expressivity. The expressivity in primary florets varied from 5.6 to 62.5% in whereas<br />
in secondary florets, it was only 0 to 14.3%. Out of 30 panicles observed, 13 were without any<br />
three styled pistil in secondary florets although allthe panicles had teat in primary florets. The<br />
irregular behaviour in the expression of three style pistil character revealed the possibility that<br />
this character may be controlled by a major suppresser gene.<br />
5.6 Cytogenetical studies in range grasses.<br />
(M. G. Gupta)<br />
On the basis of morphological data, all the Seven existing lines of Ciglaucus belonged to<br />
the same group. Cisetigerus gerrnplasm was grouped into tall <strong>and</strong> early flowering types (15),<br />
tall <strong>and</strong> late flowering types (5), dwarf <strong>and</strong> early flowering type (9), <strong>and</strong> dwarf <strong>and</strong> late flowering<br />
type (13). Ciciliaris material was grouped into tall, early flowering with purple coloured<br />
spikes (37), tall, early flowering wiro faint colour spikes (12), tall, late flowering with purple<br />
colour spikes (5), dwarf, early flowering with purple spike (18), dwarf, early flowering <strong>and</strong><br />
faint colour 0), dwarf, late flowering with purple spike (12).<br />
( 52 )
Cytological studies:<br />
Chromosome associations <strong>and</strong> ploidy level were studied in nine lines of C. ciliaris,<br />
namely, <strong>IGFRI</strong>-8-2-2; 8-2-4; 358; 338; 660; 671; 678; 679 <strong>and</strong> S-4. The observations<br />
0.1 the meiotic divisions in PMC showed that all the nine lines studied are tetraploid in nature<br />
with chromosome complement as (4X = 24:= 36). Chromosomal associations at dia-kinesis<br />
showed the autotetraploid nature of these cultivars. Chromosomal associations as quadrivalents<br />
forming various patterns, SUCll as, rings, chains, inter associations etc. <strong>and</strong> the occurrence<br />
of eighteen bivalcnts as diakinesis were irrespective of various morphological attributes ex'<br />
pressed by the cultivars.<br />
Studies on apimixis :<br />
Embryological studies were conducted on only four lines, namely, S-4, <strong>IGFRI</strong> 660, 638<br />
<strong>and</strong> 8-2-2. A 11 these lines showed apomictic nature of embryo development. The adventive<br />
embryo rapidly develops from the nuclear tissue <strong>and</strong> obliterates the growth of sexual embryo<br />
<strong>and</strong> assumes its pl-ce.<br />
PI-6 :<br />
6.1<br />
PHYSIOLOGICAL STUDIES IN FORAGE CROP IMPROVEMENT<br />
Varietal screening <strong>and</strong> induction of drought tolerance in forages.<br />
(R. B. R. Yadava <strong>and</strong> B. D. Patil)<br />
Twelve genotypes of oats grouped into three categories (i) highly drought tolerant (ii)<br />
moderately drought tolerant <strong>and</strong> (iii) susceptible based 011 screening parameters (CSI, RWC<br />
<strong>and</strong> proline accumulation) were grown in field under irrigated <strong>and</strong> unirrigated conditions. In<br />
highly drought tolerant group, the reduction in yield under unirrigated against irrigated conditions<br />
varied from 9.94 to 16.74 per cent (table 12) In moderately drought tolerant grou p,<br />
the reduction in yield varied from 18.05 to 21.15 per cent <strong>and</strong> in drought susceptible group,<br />
it ranged from 22.58 to 27.80 per cent.<br />
6.2 Salt tolerance in forages.<br />
(0. P. S. Verma)<br />
Six varieties of oats, viz., JHO-1315, JHO-S16, DPO-121, OS-86, Colabah <strong>and</strong><br />
Palampur-sl were tested for salt tolerance at four salinity stress levels (4, 8, 12 <strong>and</strong> 16 Ece<br />
53 )
under pot-culture. Salinity levels were simulated by dissolving Nacl, Cac1 2 <strong>and</strong> ~Na2 S04 in<br />
the ratio of 7:2:1 in water equal to the saturation percentage of 18 kg soil in pots. Plant<br />
height was observed to be reduced with the increasing levels oJ salinity in all varieties. However,<br />
an increase in tiller <strong>and</strong> leaf number was recorded at 8 <strong>and</strong> 12 Ece levels in all varieties<br />
except Palampur-I which could not sur vice beyond moderate salinity stress of 4 Ece.<br />
Ear bearing tillers, ear length, spikelet number <strong>and</strong> seed weight per plant increased upto the<br />
salinity levels of 12 Ece in varieties JHO-815, JHO-816 <strong>and</strong> Colabah. The effect of highest<br />
salinity level on grain yield was adverse in all varieties. JHO-815, JHO-816 <strong>and</strong> Colabah<br />
were identified as the most tolerant genotypes as revealed by their survival at the highest level<br />
of salinity.<br />
6.3 Effect of growth regulators on flowering, seed setting <strong>and</strong> quality aspects of<br />
fodder crops<br />
(R. B. R Yadava)<br />
Th~ effect of growth regulators on seed yield in bajra was stadicd, Plant were sprayed<br />
with different levels of growth regulators (1000, 2500 <strong>and</strong> 5000 ppm MH; 2500, 5000 <strong>and</strong><br />
] COOO PFm CCC <strong>and</strong> 25CO, 5CeO <strong>and</strong> 1eceo ppm B-nine) at tillering stage <strong>and</strong> observations<br />
on flowering <strong>and</strong> seed yield contributing characters were recorded. The data (table 12) revealed<br />
that the untreated control plants took 34 days when the first flower emerged. The flowering<br />
time was prolonged by 1 to 12 days in different treatments. The number of ear bearing tillers<br />
per p'ant increased with the application of growth regulators. The highest concentration<br />
(10000 ppm) of cce <strong>and</strong> B-nine showed inhibiting effect, although were better .han control,<br />
Grain yield under 2500 ppm <strong>and</strong> 5000 ppm of MH <strong>and</strong> 5000 <strong>and</strong> 10000 ppm of CCC was<br />
significantly higher than the control. Similarly, 5000 ppm of MH, CCC <strong>and</strong> B-nine had significant<br />
effect on thous<strong>and</strong> grain weight.<br />
Pl-7 STUDIES ON NATURE AND EXTENT OF PLANT DISEASE OF FORAGE<br />
CROPS, THEIR IMPORTANCE AND CONTROL<br />
1.2 Analys:s of resistance in selected fodder crops against important plant dlscases.<br />
(S.T. Ahmad)<br />
Sorghum stratn HOI H0 2 H0 3 1328 <strong>and</strong> 4816 were raised in 2;
Table 11 ; Effect of growth regulators on flowering <strong>and</strong> yield components in bajra.<br />
Treatments<br />
Days to<br />
flower<br />
Fertile<br />
tillers fplant<br />
Length of<br />
ear head<br />
arainyield<br />
per plant<br />
1000 grain<br />
weight<br />
(em)<br />
(g)<br />
(g)<br />
Control 134 10.3 17.6 128.8 18.1<br />
1000 ppm MH 143 15.0 14.8 121.1 9.8<br />
2:0)<br />
500)<br />
" "<br />
" "<br />
145 19.0 17.3 185.3 10.2<br />
144 20.0 12.6 134.9 10.8<br />
250) ppm CCC 133 13.0 17.6 126.1 10.0<br />
5000<br />
" "<br />
139 19.0 14.5 135.5 11.1<br />
10000 " 136 18.6 16.5 133.7 95<br />
250) ppm B-nin~ 138 15.3 44.6 117.1 9.8<br />
5000<br />
"<br />
"<br />
139 16.0 19.0 129.7 22.3<br />
10000 "<br />
"<br />
144 12.3 17.8 97.3 9.8<br />
CD at 5% level<br />
0.77<br />
5.94<br />
0.56<br />
CD at 1%level<br />
1.06<br />
8.14<br />
0.77<br />
( 55 )
Table 12: Comparative performance of oat varieties for seed yield under irrigated <strong>and</strong><br />
unirrigated conditions.<br />
Seedyield (g!Planf)<br />
category Varieties Irrigated Unirrigated<br />
-------<br />
% decrease over<br />
i~rig~ted<br />
Drought<br />
tolerant<br />
Moderatel)!<br />
drought<br />
tolerant<br />
Drought<br />
Susceptible<br />
<strong>IGFRI</strong>-2670 42.0 38.2 9.94<br />
<strong>IGFRI</strong>-3021 58.5 50.6 15.61<br />
<strong>IGFRI</strong>-2688 38.3 32.~ 16.76<br />
IGO-8 35.8 31.3 14.37<br />
<strong>IGFRI</strong>-2672 31.5 26.0 21.15<br />
<strong>IGFRI</strong>-3026 34.0 28.8 18.00<br />
IGO-18 29.6 24.7 19.83<br />
<strong>IGFRI</strong>-3018 228 18.6 22.58<br />
<strong>IGFRI</strong>-2636 25.8 20.2 27.72<br />
IGO-l1 28.0 22.3 25.56<br />
IGO-3 20.1 14.9 34.89<br />
Kent 26.0 20.8 25.00<br />
differ much. The infection by Collectotrichum species was quite severe <strong>and</strong> so was the case<br />
with comon leaf spot. These observations indicated the selectivity of pathogens to the<br />
treatment. The effect on the yields (green weight <strong>and</strong> dry matter percentage) was not Significant.<br />
2 Another experiment was conducted to study the effect of cropping patt-<br />
ern on disease development, Guar <strong>and</strong> bajra cross were raised in 2x2 ill plots of each<br />
crop alternating each other. The rows direction in plots was East to west. Guar was found<br />
affected with Alt erneria leaf spot <strong>and</strong> bajra with rust. The spread of guar leaf spot was checked<br />
by the presence of bajra plants while no such effect was noticed in case of bajra rust,<br />
( 56 )
3 ~everal crosses were attempted between diploid tetraploid <strong>and</strong> hexaploid oats to<br />
evolve suitable resistant donor for the future resistant breeding programme, Out of several '<br />
promising oat crosses in F 2 <strong>and</strong> fixed F 4 lines <strong>and</strong> their selections. Only one F 2 cross 20 A<br />
was established far further studies.<br />
7.3 Problems <strong>and</strong> prospects of plant diseases in graminaceous fodder crops.<br />
(Arun Kumar]<br />
Etiology <strong>and</strong> epidemiology of sorghum foliar Pathogens:<br />
Effect of date of sowing on disease development:<br />
To determine the relationship between date of sowing <strong>and</strong> disease development,<br />
variety M. P. Chari of Sorghum was sown in pots at three different dates at an interval of<br />
ten days, i. e. 10 th, 20th <strong>and</strong> 30th July. The per cent leaf area affected by different diseases<br />
<strong>and</strong> yield parameters were recorded at 3-5 leaf stage, <strong>and</strong> at 50% flowering stage in each<br />
treatment. Results showed that the severity of diseases was more on the plants sown on l Oth<br />
July as compared to those sown on later dates. Thus, sowing of seeds on 20th July was<br />
observed favourable because the seeds Sown on this date produced plants with low disease<br />
incidence, greater height <strong>and</strong> higher number of larger leaves/plant. Number of tillers, stem<br />
girth <strong>and</strong> dry wt/fresh wt ratio were also observed at their optima at this time.<br />
Effect of temperature ana humidity on development of diseases in field :<br />
Obs.rvations on three diseases, viz., zonate leaf spot, anthracnose <strong>and</strong> grey leaj<br />
spot were recorded from third week of August to first week .of November to find out<br />
periodic development of these diseases in relation to different weather conditions prevailing<br />
in the field. Results indicated that the maximum infection of the diseases took place between<br />
23. 0 to 35. OoC which is generally available during these months. It was also observed<br />
that high humidity of 85-95% was required for maximum infection of foliar pathogens.<br />
Studies on disease control aspects<br />
Conidia of rough leaf spots iAscochyta sorghina) of sorghum were SUbjected to<br />
different fungicidal treatments in laboratory to observe the per cent inhibition in germination<br />
57 )
· - .<br />
with respect to control in distilled water. The germination took place after 3 hrs, while no<br />
conidia germinated in 100 ppm solution of Vitavax. Benlate (lOa ppm) showed considerable<br />
inhibition (58. 3%). Bavistln (l00 ppm) could not inhibit the germination more than 16.6%<br />
After 24 hrs, benlate successfully inhibited the qermination by 93% <strong>and</strong> bavistin upto 90%<br />
The performance of these three fungicides will now be studied in field conditions.<br />
Germplasm sereeuing<br />
Eight varieties of oats were planted in the infector row pat-ern, All the entries<br />
were observed free of disease symptoms against natural occurrence of diseases in the field.<br />
7.4 Plant diease pioblcms in browsing <strong>and</strong> trees.<br />
s<br />
( H. K Joshi)<br />
Artificial inoculation studies <strong>and</strong> pathogenicity test of rusarium acuminatum on<br />
subabool trees.<br />
Attempts were made to inoculate the fungus E. acuminatum isolated from gummosis<br />
affected subabool trees. The isolation was made from infected parts of bark <strong>and</strong><br />
.disintegrated cortical tissues. At the onset of gum production, the affected portion of bark<br />
was wrapped with a surfacesterilised polythene sheet. When the visible symptoms of gum<br />
appeared, the bark was carefully removed the tree by means of a sharp sterilized blade <strong>and</strong><br />
isolated on PDA-meclium. Pure cultures of the fungus were raised <strong>and</strong> the two-week old<br />
cultures were used for inoculation.<br />
The spore suspension having 7-8 spores per (10 X 40 X) microscopic field indicated no<br />
symptoms, The inoculation made by direct application of spore suspension containing 15-16<br />
conidia on one year old subabool trees of peru type (<strong>IGFRI</strong>-8) at a height of about 1 m on<br />
main trunk produced symptoms.. The observations on the inoculated treatments were constantly<br />
taken for 16 days (table 13).<br />
Occi.rrence <strong>and</strong> host range of /ungal diseases on fodder trees.<br />
Twenty two cultivars of fodder trees belonging to fourteen species of six genera<br />
were sown' in the-last week of June in earthen pots to observe the natural occurrence of<br />
fungal diseases. Theobservations are as follows.<br />
58 )
Table: 13<br />
Inoculation conditions <strong>and</strong> symptoms appearanc~.<br />
S!.<br />
No.<br />
Conditions provided<br />
for inoculation<br />
No. of tree')<br />
inoculated<br />
Symptoms<br />
1.<br />
Control-<br />
,( a) Injuries up to 5 mm, sprayed with<br />
sterile distilled water <strong>and</strong> left<br />
uncovered.<br />
( b) Injured, sprayed with D. W. '<strong>and</strong><br />
covered with polvthene sheet.<br />
2, Injured, inoculated coverd with<br />
polythene sheet around bark,<br />
3<br />
3<br />
3<br />
Nil<br />
Nil<br />
Nil<br />
3. Injured, inoculated covered with<br />
moist cotton pad wrapped with<br />
moistening upto 96 hours'<br />
3 "Out of -30 'injury \marks, 18<br />
produced minute globelats, of<br />
dark coloured gum with amorphous<br />
texture'<br />
----------------"'"-------<br />
Albizia : out of the three species, A. mara <strong>and</strong> A. procera were observed free from any<br />
fungal diseases, while A. lebbeck was observed infected with rust Ravenalia sessilis, Tho rust<br />
l-us:ules were also found colonized by Trichothecium species." Dead leaves were inhabited by<br />
Pestilotia species. The host range of R. sessilis was confined to A. lebbeck only under<br />
natural conditions.<br />
Acacia: The two species of Acacia, viz. A. tortilis <strong>and</strong> A. nilotica were ohserved free from<br />
anv fungal disease symptoms.<br />
Dalbergia : D. sissoo was attacked by powdery mildew phyllaciinia dalbergiae <strong>and</strong> rust<br />
(Uredo sissooi.<br />
Hardwickia :<br />
H. binnata \V:1,S found free from any disease symptoms.<br />
( 59 )
Leucaena : L. leucocephala seedling Were affected by Colletoriehum copsici. Besides, Aspergillus<br />
[laous also infected the seeds <strong>and</strong> seedlings. The dead pods were colonized by A. (favus which<br />
forms a new host record for India. Diachea bulgillosa was found parasitizing on livins<br />
seedlings.<br />
Sesbania : Grey leaf spots were observed on all strains of S. sesban, S. gr<strong>and</strong>itlora <strong>and</strong><br />
S. aculeata. The yellow <strong>and</strong> dotted varieties of S. aculeata were also observed with stem lesions.<br />
Five species, vlz., S. exasperats, S. macrocarpa, S. seracia, S. tetraptera <strong>and</strong> S. simpliuscila<br />
were observed free from any symptoms.<br />
PI-8: STUDIES ON INSECT PESTS OF FORAGE CROPS, THEIR IMPORTANCE<br />
AND CONTROL.<br />
8.1 Genetic evaluation of important non-leguminous fodders for resistance to<br />
insect-pests.<br />
(S. A. Faruqui <strong>and</strong> K. C. P<strong>and</strong>ey)<br />
One hundred <strong>and</strong> sixty two plants of segregating population of 24-3-1 x 81B along with<br />
their parents were studied for reaction to shootfly. Out of 42 dwarf plants, 17 were resistant<br />
<strong>and</strong> 25 susceptible <strong>and</strong> out of 94 tall plants 18 were resistant <strong>and</strong> 76 susceptible. The type of<br />
resistance appears to be simple.<br />
2. Studies on neurosecretory activity in relation to feeding in Hyperapostica <strong>and</strong> Callosbruchus<br />
maculatus indicated that feeding stimulated the synthesis <strong>and</strong> release of neurosecretory<br />
material.<br />
8.2 Genetic evaluation of important forage legumes for resistance to insect-pests.<br />
(K. C. P<strong>and</strong>ey <strong>and</strong> S. A: ~aruqui)<br />
Medicago species:<br />
The seeds obtained from 55 plants having high degree of resistance for lucerne weevil<br />
select from 11 lines, viz., B-15, B-22, B-27, B-135, B-209, Dawson, Sarnac, Ranger, Buffalo<br />
Sirsa-9 <strong>and</strong> Dupuits were tested in the laboratory for mass selection against Hypera j ostica,<br />
( ·60 )
the lucerne weevil. Five hundred out of 5000 seedlings were selected under adult cotyledon<br />
test. These were put under adult leaf disc test <strong>and</strong> about 350 plants were selected on the<br />
basis of least damage. These were put for larval development test <strong>and</strong> about 250 plants<br />
were selected. These plants were put for ovipositional stumulus test <strong>and</strong> finally about 150<br />
plants Were selected <strong>and</strong> seeds from them were collected,<br />
The crude extract obtained through Steam distillation of Medicago species, namely<br />
M. sativa, M. ariertext a, M. utalica, M. scutellata, M. rugosa, M. murex, M. tarnatae <strong>and</strong><br />
M. truncalula were tested in open cages at strength of 10, 100 <strong>and</strong> 1000 microgramms per disc.<br />
The response ratio of lucerne weevil indicated that M. scut ellata <strong>and</strong> M. rugosa appeared<br />
to produce volatile material which contained substances repulsive to the weevil. M. sativa,<br />
M. intertexta <strong>and</strong> M. arabica extracts contained substance that was attractive to<br />
lucerne weevil.<br />
Tl'n vaneues of cowpea JC-21, 978, 984, 450, 1008,985, VMPKV-1,HY 68-B,<br />
143 <strong>and</strong> 515 were screened for combined resistance to cowpea, flea bettle <strong>and</strong> semi-looper.<br />
JC-21, 1008 <strong>and</strong> 68-B showed combined tolerance for these pests. The cowpea varieties,<br />
'Kanyakuman, <strong>IGFRI</strong>-450, 5286 <strong>and</strong> UPC-9020 had the least attack of the insect pests,<br />
while 5286, VMPKV-1, 97 <strong>and</strong> 216 showed the higher number of :'lsect pests. The association<br />
of arhar increased number of insect pests in cowpea, while association of bajra reduced<br />
their numbers.<br />
Arhar<br />
b<br />
Out of 29 cultivars of arhar, IL-4, 17, 40, 45, 103, 139, 185 <strong>and</strong> 156 showed the<br />
maximum damage <strong>and</strong> IL-85. 69-11, 106 had the least damage, of leaf defoliators. The<br />
podfly damage was the maximum in 103, 119, 185, 47 <strong>and</strong> 8 while others were moderately<br />
resistant.<br />
Reaction of arhar, field bean <strong>and</strong> moth bean seed to pulse beetle 'Collosobruchus<br />
maeulatus.<br />
On the basis of least number of eg[s laid <strong>and</strong> adults produced n..~2911 158, 73, 120,<br />
1517, 267 <strong>and</strong> 250 of arhar appeared tolerant. Seed colour <strong>and</strong> seed volume showed no<br />
re'ationship with tolerance. The larger seed size had, however, greater tolerance. Out of 31<br />
cultivars of field bean No. 23, '833 <strong>and</strong> LI-1 showed greater damage.<br />
( 61 )
198 cultivars of moth hean were screened on the basis of number of adults produced<br />
by the beetles in 30 days. Forty six lines which were catagorised as tolerant are IL-1173,<br />
1188, 1167, 1057, 1189, 74-59, 1035, 1085, 1175, 74-66-1, 2205, 1087, 1090, 74-66,<br />
1942, 1132, 1066, 1140, 1049, 1180, 1127, 1000, 1102, 1033, 1137, 1096, 1163, 1074,<br />
1078, 1184, 74-66, 74-82, 74-59-1, 74-53, 1174, 1068, 1157, 1089, 1095, 1145, 1126,<br />
ILO-I, 2, 3, is <strong>and</strong> 9.<br />
8.3 Survey <strong>and</strong> utilization of parasites <strong>and</strong> predators in relation to biological control<br />
of insect-pests of fodder crops.<br />
(S. A. Farul.(ui <strong>and</strong> K. C. P<strong>and</strong>ey)<br />
1. Survey of important parasites of cowpea aphid, revealed that Lcucopis attacked all the<br />
nymphal stages. On painted bug, Anagrus opt abilis, an egg parasite <strong>and</strong> Neogonatopus species<br />
which attacked all nymphal instars were observed. On stem borers in Chilo species, parasites<br />
most abundant on larvae were Bracon albineatus, Adoxomyla heminopla, Chelonus Spp, Pseudalsonya<br />
Spp. In Scsamia ini'erans, the larva parasite observed was Sturmiopsis in/erans.<br />
2. Studies on food unilizaticn <strong>and</strong> consumption by the larvae of lucerne weevil, Hypcra<br />
postica made on 3rd <strong>and</strong> 4th instar larvae indicated that fresh weight gain from begining of<br />
3rd instar to the day preceeding to cocoon formation was 14·16±0.62 mg, in unparasitized<br />
<strong>and</strong> 9.l8±0.28 mg. in parasitized larvae. Dry weight gain from begining of 3rd instar<br />
through cocoon formation was 1.92±03 mg in unparasitized <strong>and</strong> 1.54±0.66 mg in parasitized<br />
larvae.<br />
3. Observations on diapause behaviour of Bathyplectcs curculionis, the most important<br />
parasite of lucerne weevil indicated that both types of diapausing <strong>and</strong> non-diapausing froms<br />
of B. curculionis occurred in the field. The non-diapausing forms of the parasities had Cocoons<br />
light brown in colour <strong>and</strong> diapausing cocoons were darker. The cocoons collected at the<br />
end of February contained more number of diapausing forms.<br />
PI-9 STUDIES ON NEMATODES IN RELATION TO FORAGE AND PASTURE<br />
PRODUCTION.<br />
9.2 Forage crop production of some important cultivated legumes <strong>and</strong> grasses in relation<br />
to plant parasitic nematodes.<br />
(N. Hasan)<br />
( 62 )
Use of neem cake for the control of root-knot nematode infecting sesbania gr<strong>and</strong>iflora.<br />
Seedling grown in nursery beds amended with neem cake in Jurrows (100 g/furrow)<br />
<strong>and</strong> spot treatment (15 g/spot) <strong>and</strong> later grown in naturally infested soil with M. incognita<br />
reduced the gall formation by about 50% <strong>and</strong> increased the growth by 62~~ of S. gr<strong>and</strong>iilora<br />
seedlings as comparable to those obtained when the seedlings were grown in nematicides<br />
treated soil, Further, the single application of neem cake persists for over a period of six<br />
months.<br />
Control of nematodes infecting Clrtoria, cowpea, moth bean <strong>and</strong> oat by seed treatment<br />
with different nematicidcs.<br />
The namaticides, viz., aldicarb. carbofurart <strong>and</strong> phenamiphos each at 0.25, 0.5 <strong>and</strong><br />
1.0% concentration were tested as seed treatment to minimise the toxicity <strong>and</strong> cost for the<br />
control of M. incognita infecting Clitoria, cowpea, moth bean <strong>and</strong> I. vulgaris infecting oat<br />
under field condition.<br />
Phenamiphos at the highest concentration gave the least root-knot index in all the<br />
forage legumes <strong>and</strong> the maximum reduction in the population (85%) of I. vulgarts infecting<br />
oat followed by aldicarb <strong>and</strong> carbofuran. All the chemicals at highest concentration were<br />
also effective in increasing the forage yield.<br />
Population changes of the root-knot nematode M. incognita in<br />
~pp.<br />
relation to different crop<br />
Clitoria, cowpea <strong>and</strong> moth bean caused greater increase in the population of M. incognita<br />
as compared to Sorghum (M. P. Chari), bajra <strong>and</strong> maize. M. P. Chari was found to<br />
the poor host for this nematode. Weed free fallow greatly reduced the population of<br />
M. incognita.<br />
Screening of lucerne species/varieties against M. incognita <strong>and</strong> P. Penetrans.<br />
\ .<br />
Twenty three varieties of 12 species were tested for resistance in pot culture by inoculating<br />
with freshly hatched larvae/nematodes of M. incognita <strong>and</strong> P. penetrans. The cuItivars<br />
showing resistance will be tested in field conditions.<br />
Histopathological studies of resistant <strong>and</strong> susceptible line of Clitoria ternatea, D. aconltif"lius<br />
<strong>and</strong> Sesbania spp. infected with M. incognita.<br />
Infected root sections of resistant <strong>and</strong> susceptible plants revealed that the nematodes<br />
63
penetrated in both types of plant roots, though fewer in number in resistant plants. The<br />
developments of mature females in resistan: plant roots were also observed to be delayed,<br />
Effect of different cruping sequences on the population of plant parasitic nematodes.<br />
The population of root-knot nematode seemed to be increased in cropping sequences<br />
where cultivated forage legumes were grown continouslyas compared to grasses. Grasses<br />
appeared to be good hosts for spiral <strong>and</strong> stunt nematodes.<br />
9.3 Studies on nematode associated with Silvipastoral systems<br />
(M. 1. Azmi)<br />
Lesion nematode, Pratylenchus zeae Graham is very pathogenic to su-baboo1. Leucaena<br />
leueocephala. Farmyard mannure (FYM) was used to assess its effect on the host response <strong>and</strong><br />
host suitability of P; zeae on the su-babool seedlings. The root lesion index on su-babcol<br />
seedlings, showing host response, decreased as the treatment decreased as the treatment doses<br />
of FYM increased (table 14). Drastic reduction in the rate of multiplication of the nematode<br />
(reproduction factor) showing host suitability were observed with 2x 105 ppm dcse of<br />
FYM.<br />
Cenchrus ciliaris has high degree of drought resistance. In favourable conditions (10<br />
30%) soil moisture <strong>and</strong> IS-350C soil temprature), it facilitates; multiplication of spiral r ermtode,<br />
Helicotylenchus dihystera, which causes severe root damage, thin st<strong>and</strong>s with pale, slender<br />
or dying lewes. Soil samples were collected <strong>and</strong> the nematodes presentwere indentified <strong>and</strong><br />
counted. Range.of population of predominantly occuring nematode H. dihyst era was higher<br />
in the rhizosphere soil of older stocks than in freshly transplanted material (table 15).<br />
The effect of different population density levels (table 16) was studied by inoculating<br />
] 5 days old seedlings. The studies revealed that the significant reduction in the growth characters<br />
of the plants started from the nematode density 100 per 100 ml of soil. Further, with increasing<br />
levels of inoculum density, there was corresponding reduction in 'plant height <strong>and</strong><br />
dry matter weight of plant. Symptoms like stunting, yellowing of the shoot, browning of the<br />
leaves <strong>and</strong> short discoloured dead roots were prominent. Reduction in the yield of plants or<br />
other pathogenic effects were directly influenced by the initial density of the nematode in the<br />
soil. The rate of multiplication of the nematode in soil is again a density dependent<br />
phenomenon,<br />
( 64 ).
Table 14: Control of root lesion nematode, Pratylemchus zeae on 1 su-babeol with Farm<br />
yard mannureafter 100 days imgn.,of six repJieates)... _ 3 _<br />
d jl •<br />
Treatme8~<br />
.i\..f<br />
I "Ol I ~ , "<br />
, ,<br />
) ,<br />
Root lesion<br />
index<br />
..(scale 0-4) --. ~ -<br />
ReproouctiBn 'factor<br />
of the nematode (R)<br />
Untreated (control)<br />
2 X 10 3 ppm<br />
2x 10 4 ppm<br />
2=10 6 ppm<br />
C. D. at5 %<br />
3.5<br />
3.1<br />
2.5<br />
1.6<br />
0.32<br />
,f," }l<br />
265<br />
242.<br />
199<br />
1L6<br />
140<br />
(Scale 0-4)0,"",no lesion, 1=few-£maH lesion, 2=nrore-ml1all lesions few big' lesions,- 3-':;mode:<br />
ra te lesion, 4=severe lesion.<br />
Reproduction factor (R)=Final population pfjinitial population Pi.<br />
Table 15:<br />
Effect of H. dihystera on the growth of C. ciliaris.<br />
Nematode Plant Dry weight (g)<br />
densityjlOO rnl. height (em) Shoot . Root Pf PfjPi<br />
soil<br />
0 118.00 26.23 8.73 0 0<br />
10 116.13 25.14 7.97 1262 126<br />
100 98.68 14.87 4.12 3886 39<br />
1000 76.34 10.16 3.32 4912 5<br />
10000 53.93 8.76 216 4536 0.5<br />
CDl% 11.53 2.13 1.61 121<br />
CD 5% 8.45 1.57 1.19 89<br />
Pf'e-Final population <strong>and</strong><br />
Pie-initial population of nematodes.<br />
65 )<br />
G
Table 16: Population density of Helcotylenchus dihyst era in Cenchrus ciliaris (new <strong>and</strong> old<br />
stocks) in unirrigated field.<br />
Age of the plant<br />
No. of samples<br />
collected<br />
No. of samples<br />
yielding<br />
nematode<br />
------------------------------- -----<br />
Two months<br />
100<br />
80<br />
34-113<br />
One year<br />
100<br />
100<br />
56-203<br />
Two years<br />
500<br />
455<br />
51-210<br />
Three years<br />
100<br />
100<br />
89-375<br />
( 66 )
DIVISION OF AGRONOMY<br />
AG-3: AGRONOMY OF IRRIGATED!DRYLAND FORAGE AND PASTURE CROPS.<br />
3 1 Evalua tion of varietal re:;ponse of fot age crops.<br />
(S. N. Tripathi <strong>and</strong> A. S. Gill)<br />
1. Comparative performance of different cereal forages <strong>and</strong> their varieties for fodder production<br />
during khurif season,<br />
It was first year of the experiment. The treatments consisted of three varieties each of<br />
rmize (Ganga-5, Vijay composite <strong>and</strong> African tall); pearl millet (Rajko, Giant <strong>and</strong> L-74) <strong>and</strong><br />
fodder sorghum (P.C. 6, Pioneer-98 <strong>and</strong> M.P. Chari) along with teosinte. The experiment<br />
was carried out on a s<strong>and</strong>y loam soil intermixed with murrum in r<strong>and</strong>omused block design<br />
with three replicates. Fertilizers @ 90 kg. N<strong>and</strong> 30 kg. P 2 0 5!ha were applied to all treatments<br />
at the time of sowing. The crops were sown on July 18 <strong>and</strong> harvested for forage after<br />
74 days of growth.<br />
Results showed that on an average pearl millet recorded maximum forage yield (389 q<br />
a.M. <strong>and</strong> 88.7 q!ha D.M.) followed by sorghum (346q G.M. <strong>and</strong> 73.8 q!ha D.M.) <strong>and</strong><br />
maize (315 q G.M. <strong>and</strong> 62.2 q!ha D.M.). The forage yield of teosinte was lowest (249 q<br />
G.M. <strong>and</strong> 53.3 q!ha D.M.). Among different cereal forage varieties, African tall in maize<br />
(323 q G.M. <strong>and</strong> 71.5 q/ha D.M.); Pioneer-98 in sorghum (390 q G.M. <strong>and</strong> 83 q!ha D.M.)<br />
<strong>and</strong> L-74 in pearl millet (430 q G.M. <strong>and</strong> 98'1 q!ha D.M.) were found significantly superior<br />
to the other varieties.<br />
2 Comparative performance of guar varieties for forage yields under summer conditions.<br />
It was first year of the trial <strong>and</strong> five guar genotypes Were tested for their forage yields<br />
under summer conditions in r<strong>and</strong>ornised block design' with four replications. The crop was<br />
sown on April 14, keeping a seed rate of 35 kg/ha <strong>and</strong> row spacing of - 30 em. Basal<br />
( 67 )
fertilization eornprised 30 kg N/ha <strong>and</strong> 30 kg P205/ha. The genotypes were harvested for green<br />
fodder yield on June 21. V~'v'i "). -':. _)". ~ •. \'; VI n<br />
Results indicated that guar genotype <strong>IGFRI</strong>-S-212 recorded the highest green fodder<br />
(234 q jha) <strong>and</strong> dry matter (57.6 q/ha) yields <strong>and</strong> next in order was HFG 119 (223 q/ha G.F.<br />
<strong>and</strong> 52.8 q/ha D.M.), The various quality parameters were also in favour of these two<br />
D\<br />
.~~Qtypes. '14'J " v:/ : U" C I, " 1'}1 'I , i r><br />
3. Comparative performance of fodder bajr.i varieties under summer conditions,<br />
It was the first year of the trial <strong>and</strong> three important fodder bajra varieties (L-74, Giant<br />
<strong>and</strong> Rajko) were tested for their forage yields during summer season. The experiment was<br />
planned in r<strong>and</strong>omised block design, replicated eight times. The crop was sown on March 28<br />
yield of pea. However significant response to phosphate fertilization was seen only upto 60 kg<br />
P 205/h1.. Increase in the forage yieid of pea at this level of phosphate manuring were 74 q{ha<br />
G. M. (17.5 q rha D. M.) <strong>and</strong> 176 q{ha G. M. (39.6 q{ha D. M.) respectively over 30 kg. Pz<br />
Oa{ha <strong>and</strong> control (174.6 q G. M. <strong>and</strong> 39.6 q/ha D. M.) Interactions among levels of phosphate<br />
<strong>and</strong> seed rates were statistically not significant.<br />
2. Effect of cutting intervals <strong>and</strong> stubble height on the forage yield of lucerne<br />
(<strong>IGFRI</strong>-S-244l<br />
The treatments consisted of all combinations of four cutting intervals viz.<br />
3, 4, 5 <strong>and</strong><br />
6 weeks <strong>and</strong> three stubble heignts (4, 8 <strong>and</strong> 12 ern) from the ground level. The experiment<br />
was carried out on light textured soil in r<strong>and</strong>ornised block design with three replicates. All<br />
treatments were fertilized @ 20 kg N + 90 kg Pz 0 5 + 30 kg K 20{ha at the time of sowing.<br />
The trial was sown on October 17 <strong>and</strong> one common cutting was taken after 55 days of sowing.<br />
The cuttings intervals were imposed after ihe first harvest of the forage. In all 8, 6, 5 <strong>and</strong><br />
4 cuts were obtained respectively from cuttings 3, 4, 5 <strong>and</strong> 6 weeks interval. Results showed<br />
that harvesting the crop for forage at an interval of five weeks was optimum as it recorded<br />
the highest green forage yield of 612 q/ha (147 qjha D. M.). Increasing the cutting interval<br />
to six weeks did not prove advantageous. Harvesting the crop at three weeks interval produced<br />
lowest forage (285 q G. M. <strong>and</strong> 51 q/ha D. M.). Frequent cuttings at an interval of<br />
three weeks resulted in gradual reduction in plant population count.<br />
3. Effect of levels of nitrogen <strong>and</strong> seed rates on the forage yield of fodder sorghum<br />
(Hybrid 988)<br />
The experiment was initiated in Kharif season <strong>and</strong> the experimental design was r<strong>and</strong>omised<br />
block with three replications. The treatments consisted of all combinations of 3 nitrogen<br />
level~..J30, 60 <strong>and</strong> 90 kg/ha) <strong>and</strong> 3 seed rates (30,40 <strong>and</strong> 50 kg/ha). The crop was sown<br />
on June 8 in rows 25 cm apart <strong>and</strong> half the nitrogen dose was applied at sowing by drilling<br />
just below the ssed <strong>and</strong> remaining dose was top dressed after taking the first cut. In all two<br />
cuts of green fodder were taken on August 2 <strong>and</strong> October 1.<br />
On pooled basis (total of 2 cuts), linear response to N was observed on the green<br />
fodder yield. Aplication of 90 kg N Iha recorded a green fodder yield of 511 q/hd., whicn was<br />
47.6 percent <strong>and</strong> 8.9 percent greater than the yield observed with 30 kg <strong>and</strong> 110 kg N f'rta<br />
69 ).
espectively. Similarly, with an increase in seed rate fCHTI 30 to 50 kg/ha, the green fodder<br />
yield also increased significantly <strong>and</strong> 50 kg seedjha registered the highest green fodder yield<br />
of 510 q/ha, which was 36.7 percent higher than the yield recorded with 30 kg/ha Seed rate.<br />
Interaction between N levels X seed rate was found to be significant <strong>and</strong> maxium green fodder<br />
yield (547 q/ha) was obtained with 90 kg N<strong>and</strong> 50 kg seedj ha.<br />
4. Effect of nitrogen <strong>and</strong> sulphur fertilization on the forage yield of maize (Vijay<br />
composite).<br />
The rrial was conducted for the first year with treatments T 1 : sulphur 50 kg/ha;<br />
T 2 : 30 kg N/ha; T 3 : 60 kg N/ha; T 4 : 90 kg N/ha; T 5 : T 1+T2 ; T 6 : T 1 + T 3 <strong>and</strong> T 7 :<br />
T 1 + T 4: In all 7 treatments were evaluated in a r<strong>and</strong>ornised block design, replicated 3 times.<br />
The best crop was maize (Vijay) sown on July 25 in rows 25 em apart with 60 kg/ha seed<br />
r.ite. Sulphur <strong>and</strong> full dose of N as per treatments were applied as basal just below the<br />
seed. The crop W'lS cut for green fodder yield on Septcrnbef 15.<br />
Significant differences were achieved among the various treatments for green fodder<br />
yield of maize. On an average, sulphur fertilization (50 kgjha) increased the green fodder<br />
yield by 17.4 percent as compared to no N application whereas application of Sulphur-l- N<br />
increased the green fodder yield by 70.5 percent as compared to only sulphur alone. Interestingly,<br />
application of 50 kg S/ha+90 kg N/ha (T 7 ) recorded a green fodder yield of 303<br />
q/ ha as compared to a yield of 264 q /ha obtained with only 90 kg N /h~l (T4) which shows all<br />
increase in the yield by 14.7 percent.<br />
5. Studies on sulphur fertilization in perennial cultivated cereal fodder crops.<br />
Treatments comprising sulphur application (50 kp./ha <strong>and</strong> no sulphur) <strong>and</strong> three perennial'<br />
cereal foddercrops (Hybrid naoier, N<strong>and</strong>i grass <strong>and</strong> Guinea grass) were compared in<br />
r<strong>and</strong>omised block design with four replications. The perennial crops were spaced 50 x 50 cm<br />
(established during February 1983) <strong>and</strong> fertilized with 60 kg Nfha on May 2 <strong>and</strong> top dressed<br />
@ 30 kg N /ha after I, II <strong>and</strong> III cuts. Sulphur was also applied on May 2 <strong>and</strong> thoroughly<br />
mixed with the top layer. In all, 4 cuts Were taken (June 6, July 23, October 1 <strong>and</strong> NOVember<br />
11) for green fodder yield.<br />
On the basis of pooled data for green fodder yield, SUlphur (50 kg/h:t) increased the<br />
green fodder significantly as compared to no sulphur treatment. Application of sulphur<br />
( 70 )
ecorded a green fodder yield of 1709 q/ha as compared to no sulphur yield of 1532 qJha,<br />
(a difference of 177 qJha). Significant differences also existed among the cereal crops for<br />
green fodder yield.<br />
Interaction between sulphur X cereal crops was found to be significant <strong>and</strong>. maximum<br />
green fodder yield (2073 qJha) was achieved in guinea grass with the application of (50 kgJha)<br />
sulphur.<br />
3.2.2. Cultural management <strong>and</strong> fcrtillzer use in forageJpasture crops.<br />
(M. S. Raut <strong>and</strong> A. S, Gill)<br />
1. Effect of nitrogen <strong>and</strong> phosphorus fertilization at different seeding rates on forage<br />
production of berseem.<br />
This experiment was conducted in order to find out the effect of nitrogen <strong>and</strong> phosphorus<br />
fertilization <strong>and</strong> seed, rates on fodder production of berseern. Treatment combinations<br />
comprising two levels each of nitrogen (10 <strong>and</strong> 20 kg N Jna) phosphorus (60 <strong>and</strong>' 80 kg P2<br />
05/ha) <strong>and</strong> seeding rates (20 <strong>and</strong> 25 kgJha) were evaluated in 32 factorial R.BO, replicated<br />
three times. Berseern var. 99-1 was sown by broadcast method on November 23.<br />
Fertilizers were applied as basal as per the treatments. The crops 'Was harvested- for fodder<br />
on January 20 <strong>and</strong> February 29 <strong>and</strong> left for seed production afterwards.<br />
The experimental results indicated that green <strong>and</strong> dry fodder yield of berseern were<br />
not affected significantly due to application of 20 kgJha over IO kg NJha <strong>and</strong> 80 kg P205Jha<br />
over 60 kg P205/ha However, 20 kg NJha improved green fodder yields to the tune of<br />
10 percent over 10 kg N Iha. Higher seed rate (25 kgJha) resulted in significant increase<br />
in green <strong>and</strong> dry fodder yields of berseern over 20 kgj ha seed rate. The magnitude of such<br />
increases were 40.5 q/ha green fodder <strong>and</strong> 5.3 q/ha dry fodder yields. The interaction between<br />
phosphorus levels <strong>and</strong> seed rates was significant for dry fodder yields. which indicated<br />
that 60 kg P205Jha <strong>and</strong> a seed rate of 20 kgJha gave significantly higher dry matter yield<br />
over 20 kgJha seed rate but at 80 kg P 205/ha. The difference in fodder production due to<br />
20 <strong>and</strong> 25 kgj ha seed rate was not significant. Similarly, the interaction seed rate X nitrogen<br />
levels was also .significant for dry fodder yield. It was observed that the highest dry fodder<br />
yield was obtained with 20 kg NJha <strong>and</strong> 25 kgJha seed rate. At 20 kgJha seed rate, application<br />
of 20 kg N/ha did not increase the dry fodder significantly ove 10 kg N/ha bur with 25<br />
kgjha seed rate it led to significant increase in dry yield over 10 kg N/ha.<br />
( 71
2. Effect of bio fertilizers on berseem production.<br />
The experiment was carried out to find out beneficial role of inoculation of berseem<br />
seed with bacterial culture on fodder production <strong>and</strong> nitrogen saving. Treatment combinations<br />
comprised three nitrogen levels (0, 20 <strong>and</strong> 40 kg N {ha) <strong>and</strong> two levels of seed inoculation<br />
(no seed inoculation <strong>and</strong> seed inoculation with bacterial culture). The experimental<br />
design was r<strong>and</strong>omised block with five replications. The crop was sown on December'""12 with<br />
a basal dose of 80 kg P20s{ha <strong>and</strong> 2 cuts were obtained.<br />
Green <strong>and</strong> dry fodder production of berseern was not affected significantly due to seed<br />
inoculation (bacterial culture) over uninoculated seed. With regards to nitrogen response,<br />
an application of 20 kg N{ha improved green fodder yields of berscem significantly over the<br />
control (table 16).<br />
Table: 16 Effect of N <strong>and</strong> bacterial seed inoculation on berseem.<br />
Treatments<br />
Green fodder<br />
yield (qjha)<br />
Dry fodder<br />
yield (q{ha)<br />
Bacterial culture<br />
No culture treatment<br />
Bacterial culture treatment<br />
CD5%<br />
144.4<br />
134.2<br />
NS<br />
27.12<br />
26.22<br />
NS<br />
o.<br />
20<br />
40<br />
CD 5%<br />
129.1<br />
150.1<br />
138.7<br />
18.8<br />
25.52<br />
27.87<br />
26.62<br />
NS
3. Sulphur fertilization in berseem.<br />
This experiment was conducted to find out the effect of sulphur application on fodder<br />
production of berseern, Treatments consising of 5 levels of sulphur (0, 15, 30, 45 <strong>and</strong> 60 kg<br />
SJha) were evaluated in r<strong>and</strong>ornised block design with four replications. Berseern var, 99-1<br />
was sown on December 3. An uniform application of 36 kg N+90 kg P205!ha through<br />
DAP was done at the time of sowing. The.crop was harvested for two cuts upto March 8;<br />
Sulphur application improved fodder production of berseem significantly. An application<br />
of 30 kg Sjha significantly increased both the green <strong>and</strong> dry matter yields over no<br />
sulphur treatment (table 17).<br />
Table 17 :<br />
Treatments<br />
Effect of sulphur application on berseem.<br />
levels of sulphur (kg SJha)<br />
o<br />
15<br />
:=0<br />
45<br />
60<br />
CD5%<br />
Green fodder<br />
(qJha)<br />
146.3<br />
157.8<br />
175.0<br />
172.5<br />
166.8<br />
23.1<br />
Dry matter<br />
(qjha)<br />
25.63<br />
28.45<br />
34.60<br />
29.78<br />
28.25<br />
614<br />
3.3 Cropping patterns for maximum forage production.<br />
(S. N. Tripathi)<br />
1. Evaluation of different forage crop rotations<br />
The treatments comprised nine forage rotations viz. (1) P. pedicel/alum-lucerne, (2)<br />
P. pedicel/arum + guar -- berseem, (3) P. pedicellatum-s- cowpea -- oat. (4) 'maize - lucerne,<br />
(5) maize + guar (6) maize + cowpea- berseem (7) M. P. Chari + guar - oat, (8)<br />
M. P. Chari + COwpea - lucerne <strong>and</strong> (9) M. P. Chari - berseem (control). These crop sequ~<br />
ences were evaluated for their forage production potential in r<strong>and</strong>ornised block design keeping<br />
four replicates. Pure cereal <strong>and</strong> leguminous forage were fertilized with 90 kg N + 30 kg P2<br />
0 5 <strong>and</strong> 20 kg N + 80 kg P205Jha respectively. Mixed crops of cereal <strong>and</strong> leguminous forage<br />
during Kharif season received 55 kg N + 40 kg P205jha. Among different forage crops<br />
rotations' P. pedicel/alum + guar - berseem recorded maxium green forage yield (1249.6 qJ<br />
ha, which was significantly highe r than the green forage yield of remaining rotations. Next in<br />
order were M. P. Chari - berseem (1189.4 qjha) <strong>and</strong> P. pedicel/alum-lucerne (1160.0 q/ha).<br />
There was no significant difference with respect to dry matter yIelds of .he above mentioned<br />
forage rotations which ranged from 200.4 q to 207.9 qjha. The remaining forage crop rotations<br />
recorded around 1000 qjha green forage <strong>and</strong> below 194 qjha dry matter. Maize-]- guar-oat<br />
rotation recorded significantly lower forage yields (840.6 q G. M, & 165.2 qJha'D. M.) than<br />
( 73 )
other rotations.P. pedicellatum (529.2 q/ha G. M. <strong>and</strong> 101.8 q/ha D. M.)<strong>and</strong> berseem(742.2<br />
q G. M. <strong>and</strong> 103.6 q/ha D. M.) were identified as most productive crops during kharif <strong>and</strong><br />
rabi seasons, respectively,<br />
2. Evaluation of cereal-oat <strong>and</strong> legume-oat rotations <strong>and</strong> determination of nitrogen<br />
requirement of oat.<br />
Five forage crop sequences, viz., M. P. Chari-oat, P. pedicellatum - oat, guar - oat,<br />
ccwpea - oat <strong>and</strong> fallow - oat were evaluated for forage yields <strong>and</strong> nitrogen requirrnent of<br />
oat. The experiment was conducted in a split plot design, keeping Kharif fodder crops in<br />
main plots <strong>and</strong> oat with differential nitrogen in sub-plots during rabi season.<br />
Results showed that there were significant differences in forage yields of kharif crops,<br />
P. pedieellatum recorded maximum forage yields (573.6 q G. M. <strong>and</strong> 112.3 qfha D. M.)<br />
followed by M. P. Chari (385.6 q G. M, <strong>and</strong> %.2 qj ha D. M.); Cowpea (318_q G. M. <strong>and</strong><br />
65.8 q/ha D. M.) <strong>and</strong> guar (251.4 q G. M ..<strong>and</strong> 52.6 q jha D. M.) Forage oat grown with<br />
different l~vels of nitrogen (0, 40, 80 <strong>and</strong> 120 kg Nfha) performed differently after various<br />
khari/ crops. On an average, oat aftelcowp~a recorded maximum forage yield (340.5 q<br />
G. M, <strong>and</strong> n.9 q/ha D. M.). which was significantly higher than 01t yields obtained after<br />
M. P. Chari (267.3 q G. M. <strong>and</strong> 55.8 q/ha b. M.), P. pedicellaium (279.6 q G. M. <strong>and</strong> 59.5<br />
q/ha D. M.) <strong>and</strong> guar (293.8 q G. M. <strong>and</strong> 62.1 qfha D. M). The di Terences between oat<br />
yield obtained after cowpea <strong>and</strong> fallow (318.2 q G. M. <strong>and</strong> 70.5 qfha D. M.) <strong>and</strong> M. P.<br />
Chari <strong>and</strong> P. pedicellctum were not significant. P. pedicellatum-oz: rotation recorded<br />
maximum forage yields (853, q G. M. <strong>and</strong> 171.4 q/ha D.1y1.) which was significantly higher<br />
than others. Fallow-oat. rotation recorded significan t1y lower forage yield (318 q G. M. & 70.:><br />
q jha D. M.) as compared to other forage sequences. The forage yield of M. P. Chari-oat<br />
rotation was 652.7 qjha (141.7 q.ha D. M.) followed by cowpea-oat (658.5 q/ha G. 1\1. <strong>and</strong><br />
139.7 q/ha D. M.) <strong>and</strong> guar-oat (545 q G..M. <strong>and</strong> 114.7 q/ha D. M.) Application of<br />
increasing levels of nitrogen to oat increased forage yields <strong>and</strong> on an average use of 40, 80<br />
<strong>and</strong> 120 kg N/ha increased forage yields by 87.2 (20.6 q/ha D. M.); 156.3 (38.1 qfha D. M.)<br />
<strong>and</strong> 188.9 q/ha (43.1 q/ha D. M.) respectively over control (191.8 q(ha G. M. <strong>and</strong> 38.8 q(ha<br />
D. M,)<br />
AG-3.4 Evalution aud st<strong>and</strong>ardization of practices for dl yl<strong>and</strong> forages including range<br />
<strong>and</strong> pasture grasses.<br />
(A. S. Gill, B. D. patil <strong>and</strong> M. S. Raut)<br />
1. Response of senji to phosphorus application at varying seeding rates under partially<br />
irrigated conditons.<br />
( 74 )
This experiment was initiated in rabi 1983-84 'in order to fino ou(lhe response of<br />
senji to phosphate application at different seeding rates. Treatment combinations comprising<br />
two levels OS phosphorus (30 <strong>and</strong> 60 kg P205jha) <strong>and</strong> three seed rate (25, 35 <strong>and</strong> 45 kgjha)<br />
were evaluated in r<strong>and</strong>omised block desigi with five replications. Senji variety S-76 was<br />
. I<br />
sown on October 19 in rows 30 em apart. Uniform application of 20 kg Njha was done at<br />
the time of sowing. The crop was harvested for green fodder on February 21. .<br />
It was observed that green <strong>and</strong> dry fodder yields were not influenced significant due to<br />
varying seed rates' An application of 60 kg P205jha resulted in significant improvement in<br />
fodder over 30 kg ·P205jha. Plant height, leaf: stem ratio, root length <strong>and</strong> root volume<br />
'were not appreciably affect id due to phosphorus or seed rates.<br />
The interaction between phosphorus levels x seed rates was significant for dry matter<br />
yield, which indicated that at 25 <strong>and</strong> 35 kgjha seed rate significant response to P application<br />
was noticed upto 60 kg P205jha but at 45 kgjha seed rate the response was restricted to 30<br />
kg P205jha only.<br />
2. Effect of nitrogen <strong>and</strong> sulphur application on fodder production of safflower under<br />
d ryl<strong>and</strong> conditions.<br />
The experiment was conducted in rabi 1983-84. Treatments consisted of- the combinations<br />
of 4 levels of nitrogen (0, 25, 50 <strong>and</strong> 75 kg N Iha) <strong>and</strong> 2 levels of sulphur (0 <strong>and</strong> 30,<br />
kg ~jl;1a). These treatments were tested in r<strong>and</strong>omised .block design with 3replica,tipns.<br />
Safflower val'. 7-13-3 was sown at a row distance of 30 em on October 13 <strong>and</strong> harvested on<br />
January 9.<br />
The experimental results indicated that green fodder yield of safflower was not affected<br />
due to nitrogen <strong>and</strong> sulphur application significantly over control: However, dry fodder<br />
yield was significantly increased due to application of 25 kg Njha over the control. Highest<br />
dry fodder yield was recorded with 50 kg N jha but it was at par with dry fodder yields obtained<br />
with 25 <strong>and</strong> 75 kg N fha.<br />
,<br />
3. Effect of nitrogen <strong>and</strong> sulphur application on fodder production of sarson under dryl<strong>and</strong><br />
conditions.<br />
This experiment was conducted in rabl 1983-84 with an objective to find out the effect<br />
of sulphur <strong>and</strong> nitrogen fertilization 011 fodder yield of sarson, Treatments consisted of the<br />
combinations of 3 levels of nitrogen (0, 30 <strong>and</strong> 60 kg Njha) <strong>and</strong> 3 levels of sulphur (0; 25<br />
( 75 )
<strong>and</strong> 50 kg/ha) in r<strong>and</strong>omised block design with 3 replications. Sarson var. Chinese cabbage<br />
was sown on October 7 <strong>and</strong> harvested for fodder flowering stage.<br />
The experimental results indicated that the application of 30 kg N /ha increased green<br />
fodder yield of sarson significantly over the control. However, application of sulphur did<br />
not exhibit any favourable effect on fodder production of sarson.<br />
\.<br />
4. Performance of hairy vetch for forage yield under varying levels of phosphorus.<br />
Treatments comprised five levels of phosphorus (0, 15, 30, 45 <strong>and</strong> 60 kg P205/h:J.)<br />
in r<strong>and</strong>omised blcck design with four replication. The vetch was sown on November 12 in<br />
rows 25 em apart· Basal fertilization comprised 20 kg N/ha applied along with the P levels<br />
drilling just below the seed. The crop was harvested for green fodder yield on February 4.<br />
Application of phosphorus significantly increased the green fodder <strong>and</strong> dry matter yields<br />
<strong>and</strong> the response was significant at 30 kg P 205/ha with yield levels of 226 q/ ha <strong>and</strong> 58.5 q/ha,<br />
respectively.<br />
5. Studies on Medicago scut ellata,<br />
Field trial was conducted on the phosphate requirement of Medicago scut ellcta (L)<br />
Mill (common name, snail medic) during the rabi Season. Treatments consisted of five levels<br />
of phosphorus (0, 15, 30, 45 <strong>and</strong> 60 kg P 20/sha) in a r<strong>and</strong>omised block design with four<br />
replication. The crop was sown on November 27 in rows 40 em apart using 15 "kg seed rate<br />
fha. The experiment was harvested for green fodder yield on Februry 15.<br />
The results indicated that the green fodder <strong>and</strong> dry matter yields were significantly<br />
affected due to the application of phosphorus. The response was linear. Maximum green<br />
fodder (205 q/ta) <strong>and</strong> dry matter (50.62 q[ha) yields were recorded with the application of<br />
60 kgP205[ha.<br />
6. Cutting management studies in fodder sorghum (Hybrid 988)<br />
Treatment combinations consisting of 4 stages of cutting (Boot, 50% flowering, Milk<br />
<strong>and</strong> dough) <strong>and</strong> two stuble height (at the ground level <strong>and</strong> 15 em above the ground level)<br />
were laid out in r<strong>and</strong>omised block design, with three replications. The crops was sown on<br />
July 21 in in rows 25 cm apart, using 40 kg seed rate/ha, Basal fertilization comprised 60<br />
( 76 )
kg N<strong>and</strong> 30 kg P205jha. The crop was harvested for green fodder yield as per the<br />
treatments.<br />
Maximum green fodder yield (3E4 qjha) was obtained at milk stage <strong>and</strong> the reduction<br />
took place beyond this stage. Milk stage recorded significantly higher green fodder yield' over<br />
rest of the treatments. Stuble height was found to be significant in increasing the green<br />
fodder yield. Cutting the crop at the ground level (344 qjha) was found to be superior<br />
over cutting at 15 em above the ground level (322 q/ha).<br />
7. Mixed cropping studies in stylo <strong>and</strong> cereal fodder crops under rainfed conditions.<br />
This was the first year of the trial. Treatments consisting of T 1 : Stylo (S. hamata):<br />
T2 : Maize (Vijay) 50x20 em; T 3 ; Sorghum (Hybrid 988) 50>
dressed 30 days after sowing. The genotypes were harvested for green fodder yield on October<br />
9. C. E. 1126 recorded the highest green fodder yield (520 qjha) followed by G. B. 1759<br />
(464 qjha) <strong>and</strong> G. E. 1768 (464 qjha)against tha general mean yield of 372 qjha.<br />
10. Performance of Cenchrus varieties for forage yield under rainfed conditions.<br />
This was the second year of the experiment. During the period under report the cutting<br />
was taken on October 18 for green fodder yield. Maximum green fodder yiele (206 qjha) was<br />
obtained with variety <strong>IGFRI</strong>-S-3108.<br />
11. Evaluation of Brachiaria spp- for forage production.<br />
This was the second year of the trial. During the period under report, two cuttings(July<br />
23 <strong>and</strong> September 28) were taken for green fodder yield.<br />
In the first cut significant differences were not registered among the five geno~ypes of<br />
B. decumbens, However, maximum green fodder yield (246 4jha) W.lS achieved with entry EC<br />
145725. In the Second cut significant differences were obtained <strong>and</strong> maximum green fodder<br />
yield 068 qjha) was obtained with entries EC 145737 <strong>and</strong> EC 145738.<br />
On pooled basis, no significant difference existed among the genotypes, However,<br />
maximum green fodder yield (383' qjha) was registered in entry EC 145738.<br />
3.5 Forage producton through cr"p <strong>and</strong> varietal blends selected on the basis of crop<br />
geometry <strong>and</strong> plant ideotype concept under optimum <strong>and</strong> sub-optimum levels of<br />
management <strong>and</strong> environmental conditions.<br />
(M' S. Raut anp A. S. Gill)<br />
1. Effect of blending of lucerne varieties for forage yields.<br />
Treatments comprising of three lucerne varieties(An<strong>and</strong>-2, composite-S <strong>and</strong> <strong>IGFRI</strong>-244)<br />
<strong>and</strong> their possible combinations were evaluated in r<strong>and</strong>omised block design replicated four<br />
times. Total six cuts were obtained.<br />
Data indicated that in first cut, mixture of An<strong>and</strong> 2+ composite-S gave the highest<br />
green fodder yield 001.8 qjha) as against pure st<strong>and</strong> of An<strong>and</strong> 2 (91.2 q/ha) <strong>and</strong> composite-S<br />
(92.5 q/ha), Thus, an additional yield advantage of 10.9 per cent was achieved through this<br />
( 78 )
mixture over their pure st<strong>and</strong>s. Simi la r trend was noticed<br />
yield differences were not statistically significant.<br />
in second cut also. However; such<br />
<strong>Fodder</strong> production of An<strong>and</strong>-2 (total of 6 cuts) was significantly superior to <strong>IGFRI</strong>-244<br />
but was at par with composite-5. On the b isis of total yield in six cuts, none of the mixtures<br />
tested were found to be significantly superior to pure st<strong>and</strong>s of these varieties. Amongst<br />
mixtures, An<strong>and</strong> 2+ Composite-5 was significantly superior to composite-5 +<strong>IGFRI</strong>-244.<br />
2, Mixed cropping studies in berseern,<br />
In order to harvest good fodder yield from first cut of berseem through growing compatible<br />
associate crops such as sarson, oat <strong>and</strong> triticale, this experiment was initiated during rabi<br />
1983-84. Treatments consistedz seeding rates of berseern (20 <strong>and</strong> 25 kg/ha) <strong>and</strong> 3 mixed crops<br />
tsarson var. Chinese cabbage, oat var. Kent <strong>and</strong> triticale) alongwith pure berseem.<br />
<strong>Fodder</strong> production at initial cut was significantly higher when berseem was mixed with<br />
sarson (191.0 q/ha green fodder <strong>and</strong> 16.8 q/ha dry matter) as compared with pure berseem<br />
(91.5 q/ha green fodder <strong>and</strong> 8.3 q/ha dry mutter). The other two mixtures i.e. berseem + oat<br />
<strong>and</strong> berseem + triticale did not impart significant improvement in fodder yield over pure<br />
berseern at initial cut. It was interesting to note that the fodder, combined of both the components,<br />
remained unaffected though the berseern yield reduced to 45 per cent as compared to<br />
pure st<strong>and</strong>; but, an additional yield of mixed crops (27 to 140.5 q/ha of green fodder),<br />
compensated this loss. This was also true for total production of 2 cuts.<br />
- .<br />
A seed rate of 22 kg/ha was significantly superior to 20 kg/ha wilh respect to fodder<br />
yield in initial cut of berseern but such difference was obscured in total production.<br />
AG-4: SOIL AND WATER MANAGEMENT RESEARCH O~<br />
CROPS<br />
Fan-AGE/PASTURE<br />
4.1 Crop water use <strong>and</strong> lrrrgatlon management.<br />
(Menhi Lal <strong>and</strong> N. P. Shukla)<br />
Studies on water production functions in oat.<br />
The investigation with nine irrigation schedules phytophased at Critical growth stages<br />
( 79 )
(crown root initiation-CRI, tiller initiation, late tillering, jointing, panicle primordia initiation<br />
-PPI, boot, flowering <strong>and</strong> dough stages) was conducted in second year with an objective of<br />
establishing quantitative relationship between water supply <strong>and</strong> herbage accumulation.<br />
The result revealed that the highest green matter yield of 534.5 qjha was obtained<br />
with irrigations at all the growth stages. But this treatment was at par with that of missing<br />
irrigation at dough stage which inturn did not differ statistically from moisture deficit both at<br />
flowering <strong>and</strong> dough stages. However, all stages irrigation accumulated significantly highero<br />
dry matter of 130.6 qjha as compared to remaining treatment. Moisture deficit either at dough<br />
or both at flowering <strong>and</strong> dough stages produced similar level of dry matter indicating that<br />
withholding irrigation beyond boot stage did not exercise significant effect on dry mater<br />
production -in oat. Both green <strong>and</strong> dry matter yields increased progressively with additional<br />
irrigation of 50 mm at each successive stage of growth. Moreover, the magnitude of increase<br />
upto boot stage in green matter <strong>and</strong> only upto jointing stage in dry matter suggesting. that<br />
green matter production is more sensitive to moisture deficit than dry matter accumulation.<br />
The relative leaf turgidity increased with increasing number of irrigations at advanced stages<br />
<strong>and</strong> attained a value of over 90% due to continuous irrigation upto boot stage. Thereafter<br />
there was very small change in relative water content.<br />
Therefore, the herbage accumulation in oat can be increased progressively by scheduling<br />
irrigations at each of the physiological stages upto boot stage to meet the crop water<br />
requirement.<br />
2. Response of lucerne varieties to irrigation regimes.<br />
This was the first year of the investigation in which three lucerne varieties (Sirsa-P,<br />
An<strong>and</strong>-2 <strong>and</strong> <strong>IGFRI</strong>-S-244) were evaluated at five moisture regime'> (IW JCPE ratio of 004,<br />
0.6, 0.8, 1.0 aud 1.2) in R. B. D. replicated three times with a view to working out the<br />
optimum irrigation schedule for higher herbage productivity, st<strong>and</strong> persistency <strong>and</strong> water use<br />
efficiency.<br />
The maximum green <strong>and</strong> dry matter matter yields were recorded In second <strong>and</strong> the<br />
lowest in fourth cut. The lucerne varieties did not exhibit significant variation in total forage<br />
productivity but <strong>IGFRI</strong>-S-244 produced the highest green (399.3 qjha) <strong>and</strong> dry matter<br />
( 61.9 qjha ) yields. The yield levels of Sirsa-9 <strong>and</strong> An<strong>and</strong>-2 were practically the same. It<br />
was noteworthy that An<strong>and</strong>-2 <strong>and</strong> <strong>IGFRI</strong>-S-244 maintained their persistency during rainy<br />
Season whereas Sirsa-9 was completely wiped out indicating that the former two strains<br />
possess the ability of withst<strong>and</strong>ing the climatic <strong>and</strong> edaphic adversities such as high humidity,<br />
80 )
poor aeration <strong>and</strong> weed infestation which are the maior limiting factors in the maintenance<br />
of perennial lucerne.<br />
The green <strong>and</strong> dry matter production increased with increasing soil moisture regimes upto<br />
IW /Ct>E ratio of 10 at which the highest yields were obtained (426.4 q/ha G.M. <strong>and</strong> 69 q/ha<br />
D. M. ) Further increase in the irrigation regime to a ratio of 1.2, however, depressed the<br />
yield. The magnitude of increase also increased up~o IW /CPE ratio of 0.8 <strong>and</strong> declined<br />
thereafter.<br />
Thus, among the lucerne varieties evaluated, <strong>IGFRI</strong>-S-244 holds greater promise<br />
for forage productivity. Moreover, An<strong>and</strong>-2 <strong>and</strong> <strong>IGFRI</strong>-S-244 also possess the tolerance<br />
charicieristics to maintain their persistency during rainy months. Irrigation needs to be<br />
scheduled at IW!CPE ratio of 0.8 to 1.0 to provide suitable moisture environment for higher<br />
herbage accumulation in different cuts.<br />
3. Response of forage bajra to phasic moisture regimes.<br />
The investigation was carried out in the first year with nine treatments involving<br />
varicus ccmbinations of sub-optimum (25% ASM) optimum ( 50 % ASM) <strong>and</strong> superoptimum<br />
(75% ASM) soil moisture regimes during three distinct growth 'phases (establishment.<br />
vegetative <strong>and</strong> reproductive) with a view to identifying the sensitive crop phases to<br />
moisture deficit <strong>and</strong> working out suitable moisture environment for higher herbage production<br />
in giant bajra.<br />
'<br />
The maintenance of super optimum moisture regime during all the growth phases<br />
resulted in significantly highest green matter production (600 q/ha) <strong>and</strong> dry matter accumulation<br />
(153.1 q/ha). This was followed by the treatment involeing super-optimum <strong>and</strong> suboptimum<br />
levels of soil moisture during establishment of vegetative <strong>and</strong> reproductive phases<br />
respectively (505. 6 q green <strong>and</strong> 128. 9 q dm/ha) which did not differ significantly from super<br />
optimum-,sub-optimum-optimum <strong>and</strong> optimum-optimum-optimum combinations during<br />
corresponding moisture condition during corresponding developmental phases. It was evident<br />
that keeping sub-optimum moisture condition during establishment stage produced<br />
lower forage yield.<br />
These observation, therefore, suggest that super-optimum level of soil moisture should be<br />
maintained during establishment phase coinciding with periods of high evaporative dem<strong>and</strong>.<br />
On the other h<strong>and</strong>, during, vegetative <strong>and</strong> reproductive phases experiencing comparatively<br />
high humid period optimum <strong>and</strong>/sub optimum moisture regimes may be considered suitable<br />
tor rationalizing water use in summer Sown bajra.<br />
( 81
4. Effect of soil moisture variation on forage yield <strong>and</strong> water me of diferent sorghum<br />
varieties.<br />
The response of 4 sorghum varieties (Pioneer, HD-2, J69 <strong>and</strong>, PC-6) to 3 moisture<br />
regimes (rainfed, 50 <strong>and</strong> 75% ASM) was studied in R. B. D. replicated thrice to workout<br />
ptimum level of soil moisture for higher herbage accumulation in forage sorghums.<br />
The result revealed that variety FC-6 produced the highest green (421 q/ha) <strong>and</strong> dry<br />
matter (149.7 q/ha) yields <strong>and</strong> was followed by HD-2 in green matter (371.6 q/h1) ;ar.d by<br />
J6Q in dry matter (109.9 q/ha) production. The varieties, however, did not differ significantly<br />
in green forage yield but the differences in dry matter accumulation were statistically<br />
significant. On the basis of per day productivity, however, HD-2 was as good as PC-6<br />
in dry matter <strong>and</strong> proved superior to PC-6 in green matter production. The relative leaf<br />
turgidity percentages in PC-6, J69, HD-2 <strong>and</strong> Pioneer were 92.7, 85.0, 78.9 <strong>and</strong> 72.8~.~ respectively<br />
indicating that longer the duaration of variety, greater was the relative leaf<br />
turgidity.<br />
Available soil moisture at 75% produced significantly higher green (425.9 q/ha) <strong>and</strong><br />
dry matter (124.9 q/ba) yields as compared to rainfed treatment but was statistically at par<br />
with 50% ASM (376.4 q/ha G. M. <strong>and</strong> 110.8 q/ha D. M.). The crop maintained unr'er<br />
rainfed condition produced lowest forage (326.4 q/ha G. M. <strong>and</strong> 96.7 q/h~ D. M.). The<br />
leaves from rainfed, 50 <strong>and</strong> 75% ASM exhibited relative water content. of 77.9, 82.3 <strong>and</strong><br />
87.1 % respective ly. This therefore, suggests that the increasing soi I moisture regimes enables<br />
the plants to maintain higher ceil water content.<br />
Thus the sorghum vatieties PC-6 <strong>and</strong> HD-2 hold greater promise for forage productivity<br />
<strong>and</strong> soil. moisture regime well above 50% ASM appears to be congenial for enhancing<br />
, the, herbage accumulation.<br />
_4(2 Soil, water <strong>and</strong> crop management practices for seasonally waterlogged soilsl<br />
areas.<br />
(N P. Shukla <strong>and</strong> Menhi Lal)<br />
1. Effect of phasic excess moisture conditions <strong>and</strong> nitrogen nutrition on forage yield of<br />
teosinte.<br />
The field investigation was conducted in the second year with a view to studying the<br />
response of teosinte to phasic excess moisture regimes during three growth phases ,15-30,<br />
( 82
30-45 <strong>and</strong> 45-60 days after sowing) <strong>and</strong> two levels of nitrogen (60 <strong>and</strong> 120 kg/ha) in R:.B.D.<br />
with three replications. ,<br />
The moisture treatments did not bring significant differences in forage production.<br />
..1owever, the highest green (393.1 qjha) <strong>and</strong> dry matter (110.1 qjha) yields were obtained<br />
when crop experienced well drained condition during early stage from 150-30 days after<br />
seeding <strong>and</strong> excess moisture regime thereafter. This' was closely followed by the trtatment<br />
involving well drainfed-excess moisture-well drained cycle during 15-30, 30-45 <strong>and</strong> 45-60<br />
davs of growth respectively indicating that there was no adverse effect of saturated soil condition<br />
if imposed beyond 30 days of crop growth. The crop suffered most when excess<br />
moisture was imposed during 15-30 days stage.<br />
Application of 120'kg Njha produced significantly higher green ,(393.3 qjha) <strong>and</strong> dry<br />
matter (109.7 qjha) as compared to 60 kg Njha (327.1 q green <strong>and</strong> 86.9 q d. m.jha) suggesting<br />
the need of higher dose of nitrogen for higher forage production under diverse moisture<br />
regimes.<br />
4.3 Evalution of different irrigation methods <strong>and</strong> soil management techniques for<br />
efficient water use.<br />
(N. P. Shukla <strong>and</strong> Menhi<br />
Lal)<br />
1. Performance .of forage bajra in relation to moisture. regimes, nitrogen fertility <strong>and</strong><br />
plant denstiy<br />
This was first year of the investigation. The experiment with three levels each of<br />
moisture regimes (25, 50 <strong>and</strong> 75% A~M), fertilizer nitrogen (30, 60 <strong>and</strong> 90 kg Njha) <strong>and</strong><br />
plant density (10,15 <strong>and</strong> 20 kg seedjha) was conducted in 3 3 factorial confounding with a<br />
view i:O studying the variation in crop water use as influenced bv cultural <strong>and</strong> fertilizer management<br />
practices.<br />
The increasing levels of soil moisture' SIgnificantly increased the forage production with<br />
the result that the highest.green (547.5 q/ha) <strong>and</strong> dry matter (170.6 qjha) yields were obtained<br />
with 75% ASM <strong>and</strong> the 10Nest with 25% ASM (305.6 q green <strong>and</strong> 91.9 q d.m.jha). Increasing<br />
dos of fertilizer nitrogen from 30 to 90 kg N jha progressively increased the green matter<br />
production <strong>and</strong> dry matter accumulation. However, 90 <strong>and</strong> 60 kg Njha were at par between<br />
( 83 )
themselves but significantly superior to 30 kg N/ha. Increasing the seed rate from 10 to 15<br />
kg/ha caused significant variation in forage yield <strong>and</strong> the highest green (477,8 q/ha) <strong>and</strong> dry<br />
matter (148.7 q/ha) yields recorded with 15 kg seedjha. Further increase in the the seed rate<br />
to 20 kg/ha did not improve the production <strong>and</strong> rather slightly depressed the yield. Therefore<br />
bajra may be seeded at 15 kg/ha <strong>and</strong> fertilized with 90 kg N Iha. The summer sown crop needs<br />
to be irrigated at 75% ASM for increased green <strong>and</strong> dry matter production.<br />
2. Effect of soil moisture regimes <strong>and</strong> phosphate fertility on the productivity of some<br />
forage legumes.<br />
The field experiment was conducted in order to study the productivity <strong>and</strong> response of<br />
3 legumes tBhtlore, Vicia <strong>and</strong> SU8un) to 3 levels each of moisture regimes (25, 50 <strong>and</strong> 75%<br />
ASM) <strong>and</strong> phosphate fertility (0, 30 <strong>and</strong> 60 kg P 205/ha) in 3 3 factorial for the first year.'<br />
The forage lei.urnes differed significa'itly in their production <strong>and</strong> may be rated as Susun<br />
> Vida> Bhilore on the basis of herbage accumutalion, The increasing moisture regime from<br />
25 to 75% ASM increased the forage yield but the differences were not statistically significant.<br />
Increasing doses of phosphate increased the productivity of legume. However, the differences<br />
betwen 0 <strong>and</strong> 30 kg P20s/ha did not reach the level of significance whereas 60 kg P20s/ha<br />
proved significantly superior to 0 <strong>and</strong> 30 kg P20s/ha.<br />
Therefore, among the legumes evaluated, Susun holds the promise of high forage<br />
productivity. Application of phosphate at 60 kg P20s/ha <strong>and</strong> irrigation 75% ASM have been<br />
found to enhance herbage accumulation in these species.<br />
4.4 Investigation on quality of irrigation water in relation to forage crops.<br />
(Menhi Lal <strong>and</strong> N. P. Shukla)<br />
During rabi 1983-84, the irrigative values of saline water, sewage <strong>and</strong> cattleshcd wash<br />
was evaluated against canal water on three species each of legumes (berseem, lucerne <strong>and</strong><br />
metha) <strong>and</strong> cereals (oat, barley <strong>and</strong> triticale) under green house conditions.<br />
On the basis of green <strong>and</strong> dry matter accumulation, the order of crop<br />
be mentioned as :<br />
productivity may<br />
Berseerri> lucerne> metha among legumes <strong>and</strong> Oat> barley> triticale among cereals.<br />
The [rrigative values of different types of water may be rated as :<br />
Sewage> catrleshed wash> c.inal water> saline water.<br />
( 84 )
Further, sewage, cettleshed wash <strong>and</strong> saline waters showed good irrigative values for<br />
berseem, lucerne <strong>and</strong> metha, respectively. The response of oat was better with cattleshed wash<br />
while that of barley a~d triticale with sewage irrigation:<br />
AG.5 EVALUATION OF FORAGE AND PASTURE MODELS.<br />
5.1 Modelling of forage farming systems with ideotype selection, crop gemoetry <strong>and</strong><br />
defoliationjclipping technology with special reference to forage crop;;.<br />
(R. K. P<strong>and</strong>ey <strong>and</strong> Fateh Singh)<br />
1. Comparability of lucerne genotypes with oat-3021 in their promising systems of mixed<br />
cropping at different levels of nitrogen application,<br />
This was the second year of the experiment. The treatments consisted of three lucerne<br />
strains (<strong>IGFRI</strong>-244, And<strong>and</strong>-2 <strong>and</strong> L. L. composite) <strong>and</strong> two levels of nitrogen application<br />
(60 kg <strong>and</strong> 60+30 kg Njha). The basal application of 60 kg N was followed by 30 kg N as<br />
top dressing as per the treatment. Treatments were employed in three time replicated r<strong>and</strong>omiscd<br />
block design on medium textured soil. Lucerne' was sown by broadcast at IS kg seed/ha<br />
<strong>and</strong> was immediately followed by oat at 50 em apart rows (50 kg seedsjha), Oat crop was cut<br />
twice (72 days stage <strong>and</strong> 50 per cent flowering). The initial cut of lucerne was taken at 87 days<br />
crop stage <strong>and</strong> subsequent cut after the final harvest of oat.<br />
In dry matter production of mixed fodder.tthe treatment effects were not significantly<br />
marked. However, the maximum fodder yield of 146.3 qjha was recorded when oat combined<br />
with lucerne (An<strong>and</strong>-2) at 60+30 kg N jha. This fodder yield also incorporated the highest<br />
component of legume (33.1 qjha.) Lucerne genotypes as well as nitrogen levels were found to<br />
be statisticaIly not significant in mixed fodder production (Oat-l-Iucerne).<br />
2. Forage production potential of energy rich system of senji+turnip in relation to<br />
seeding dates'<br />
The promising cropping system of scnji +- turnip along with their pure culture crops<br />
were evaluated. Crops of these systems were sown on three different dates (second week of<br />
October, last week of OCtober <strong>and</strong> second week of November. Broadcast senji (30 kg seed/ha)<br />
was superimposed with 50 em apart row crop of turnip (2.5 kg seedjha). PUle crops of both<br />
( 85 )
senji <strong>and</strong> turnip were maintained at 25 em row spacing. Trese nine crop combinations were<br />
tried in r<strong>and</strong>omised block design with three replicates on medium textured soil,<br />
Mixed cropping of senji <strong>and</strong> turnip appeared to be promising system for the dry<br />
matter production. The system yielded SUbstantially higher over the individual crop <strong>and</strong><br />
mean yield of both the crops in pure culture. In mixture, turnip produced 33.4 q/ha, additional<br />
biomass without jeopardising the output of companion crop (69.5 q/ha) as compared<br />
to its pure culture control (70.8 qjha). However, the maximum mixed dry matter yield of<br />
115.2 q/ha was recorded when crops of the system were sown in the last week of October.<br />
Turnip crop was taken out much earlier than senji which provided open space for the subsequent<br />
growth of leftover crop.<br />
3. Selection of wheat ideotypes for supplementary grain production with berseem sown on<br />
different dates.<br />
The experiment was repeated during the year on medium textured soil, The main crop<br />
of berseem sown on two different dates (second fortnight of October <strong>and</strong> first fortnight of<br />
November) was introduced with four strains of wheat (Sonalika, H. J. 784, H. D. 20,09 <strong>and</strong><br />
U. P. 3613) grown in the area. These eight combinations alongwith two treatments of pure<br />
berseem (one for each data of sowing) were evaluated in r<strong>and</strong>omised block design with three<br />
replicatles. Wheat at 50 kg seed/ha was so vn in 22 day established crop of berseem,<br />
All the four wheat genotypes appeared to pe '1t par in grain p-o.luction as the differences<br />
between them were found to be statistically not significant. None of the wheat strain<br />
reduced fodder yield of berseem significantly in comparision to pure cnlture control (53.1<br />
g/~a, dry matter), However, wheat U. P. 368 mixed with berseem showed maximum yield<br />
(21.7 q/ha). This treatment did not cause much reduction. in fodder production of berscem.<br />
4. Selection of barley ideotype for mixed cropping with mustardtmder variable crop<br />
geometry system.<br />
This was the second year when three barley genotypes (Ratna, karan <strong>and</strong> Jyoti) were<br />
evaluated in combination with mustard in the ratio of 2:2 <strong>and</strong> 4:4 rows. For comparison,<br />
their monoculture crops were also maintained. The spacing between the rows was 25 em. In<br />
all, ten treatments were studied in r<strong>and</strong>ornised block design with three replications.<br />
( 86 )
In almost all the combinations, the dry matter yield of mixed fodder showed an increasing<br />
trend over the meal} yield of barley <strong>and</strong> mustard in, pure culture. However, barley,<br />
karan mixed with mustard brought the maximum increase of 23.6 (2:2 rows) <strong>and</strong> 28'5 (4:4<br />
rows) percent over the mean of pure cultures. This combination was. at par with barley,<br />
Jyoti-l-rnustard in case of 2:2 row system. The former mixture, however, with 4:4 row<br />
arrangement, yielded maximum mixed (dry matter) of 129 qjha <strong>and</strong> incorporated the highest<br />
component of mustard (49.2 qjh) when compared with other crop combinations. There<br />
was not much variation in the row arrangements.<br />
5. System analysis of Deenanath grass with the genotypes of cowpeas for improved quality<br />
biomass production.<br />
Four fodder strains of cowpea (HFC 42-1, Russian giant. <strong>IGFRI</strong>-450 <strong>and</strong> NP-3)<br />
were evaluated in association with Deenanath.grass under two systems of their mixing dine<br />
sowing of grass with broadcast cowpea <strong>and</strong>. sowing of grass <strong>and</strong> cowp~a.in alternate paired<br />
rows). A treatment of pure grass crop was also included in the study. In mixed cropping,<br />
the cowpea crop was introduced at half seed rate (20 kgjha). The line sown crops were<br />
maintained at 25 em row spacing These nine treatments were thus, tried in r<strong>and</strong>ornisedblock<br />
design, replicated thrice.<br />
In both the systems of broadcasting as well as line sowing cowpea, NP-3 associated<br />
with Deenanath grass was found to be encouraging for mixed fodder production. These two<br />
treatm-nts did not reduce the dry matter yield significantly in comparison to monoculture<br />
yield of grass (84.6 qjha). Amongst the crop mixtures, this promising genotype of cowpea<br />
recorded a maximum mixed dry matter yield of 81.4 q/ha in broadcast' sowing. The fodder<br />
yield of this cropping system also included a highest component of legume (30.0 qjh::1 The<br />
same system replaced with Russian giant was next in order both from total yield <strong>and</strong> legume<br />
contribution. points of view but its yield level was lower than pure grass. Cowpea crop was<br />
harvested at 55 days growth stage in this study.<br />
6. System analysis of rnultiproportional blending of cereals <strong>and</strong> legumes for quality<br />
fodder prcduction.<br />
, ., \~<br />
,J. ~ 1f '<br />
In this experiment, fodder sorghum M. P. Chari was blended with the promising"<br />
forages in broadcast sowing. The. objective was tq synthesise a sorghum based, system of<br />
corrp.tible crops for quality fodder. Eight system viz: [I)'Sorghum' (M. P. Chari);<br />
87 )
{21 Treatment 1+bajra (Rajko), [3] Treatment 2+maize (African tall); [4] Treatment 3<br />
+teosinte, [51 Treatment 4+cowpea (HFC 42-1), [6] Treatment 5+guar (<strong>IGFRI</strong>-212),<br />
[7] Treatment 6+sesbania (annual), [8] Treatment 7+Sunhemp (exotic) were evaluated<br />
alongwith 25 em apart row crop of M. P. Chari. Each crop of the system was mixed with<br />
equal proporation of seeds. These nine treatments were employed in r<strong>and</strong>omised block<br />
design, replicated thrice.<br />
The broadcast sorghum (M. P. Chari) out yielded its line sown crop. Amongst the<br />
blending systems, M. P. Chari+bajra+maize+teosinte+cowpea+guar produced maximum<br />
dry matter yield of 111.9 qJha This herbage material was composed of different forage<br />
cereals as well as legume component. M. P. Chari contributed highest to the mixed fodder<br />
<strong>and</strong> was followed by other components in an order of bajra, maize, teosinte <strong>and</strong> cowpea.<br />
Guar, sesbania <strong>and</strong> sunhernp did not survive in any of the systems.<br />
7. Selection of ideotypes for mixed cropping of forage cereals <strong>and</strong> legumes.<br />
This was the first year of the study. Earlier, M. P. Chari+annual sesbania-l-cowpea<br />
(HFC 42-1) was worked out as an effective mixed cropping system. This set of three crops<br />
included one line of each at 25 em spacing grown in an alternate descending <strong>and</strong> ascending<br />
order of their heights. In this experiment. this system was differentiated substituting the<br />
former crop of M. P. Chari by sorghum (PC-6, Pioneer), bajra (Rajko), maize (African<br />
tall) <strong>and</strong> teosinte. These six crop mixtures were further differentiated substituting cowpea<br />
by sunhernp (exotic) in each case. The objective was to select the ideotypes for improved<br />
fodder production in the system. These twelve crop combinations were tried in r<strong>and</strong>omised<br />
block design replicated three times,<br />
Sorghum (PC-6)+annual sesbania-l-cowpea (HFC-42-1) yielded highest mixed fodder<br />
of 101'2 qJha including 18.2 qJha legume component (Sesbania-l-cowpea). This was composed<br />
of 82.0 percent cereal, 11.5 percent sesbania <strong>and</strong> 6.6 percent cowpea' Africantall maize<br />
-l-sesbania-l-cowpea provided maximum proportion of legume cowponent of of 26 qJha but<br />
the mixed fodder yield under this treatment was not so high as in case of above mentioned<br />
system Owing to the poor plant st<strong>and</strong>, the sunhernp contribution was not included in the<br />
mixed dry fodder yield.<br />
8. Evaluation of cereal-l-Iegume systems in the alternate strips of 4:4 rows for quality in<br />
the fodder production.<br />
The experiment commenced during the year <strong>and</strong> mixed cropping 'system of bajra<br />
( 88 ')
(Rajko) -l-cowpea (HFC 42-1) was evaluated substituting its former crop by five differnt forage<br />
cereals, viz, bajra (giant), sorghum (M.P. Chari), sorghum (Pioneer), maize (African tall)<br />
<strong>and</strong> teosinte. These six combinations with cowpea were further differentiated substituting the<br />
latter c 'op by sunhemp (exotic strain) in each case. These twelve treatment combina ions were<br />
tried in r<strong>and</strong>omized block design with three replications.<br />
None of the treatment combinations superseded the cropping system of bajra (Rajko)<br />
-l-Cowpea (HFC 42-1) in total dry fodder yield (cereal-l-Iegume) This system was statistically<br />
at par with the combination where bara crop (Rajko) was substituted by M. P. Chari' Since<br />
M. P. Chari -l-cowpea included the maximum proporation of legume (22 q{ha) in the mixed<br />
dry fodder yield of 103.2 q{ha, appeared to be more promising one. Sunhernp contributed<br />
less than cowpea in fodder production during the season.<br />
5.2 Modelling of forage farming systems with ideo types selection, crop geometry <strong>and</strong><br />
defoliation technology with special reference to continued fora.;e trees crop}ing<br />
alongwith crop production.<br />
(A. S. Gill)<br />
1.<br />
~<br />
Studies on intensive forage production system under continued tree cropping.<br />
The experiment was repeated with slight me dification, Setaria sphacelate was not<br />
included. The pure planting treatments comprised Leucaena, hybrid napier <strong>and</strong> guinea grass,<br />
<strong>and</strong> two intercropping treatmen ts were Leucaena-s-hybrid napier <strong>and</strong> Leucaena+guinea grass. I<br />
The trial was conducted in r<strong>and</strong>omised block design with 4 replications. The planting technique<br />
<strong>and</strong> other details were same as reported last year.<br />
runde report.<br />
In alI five cuts were taken during the period<br />
The results indicated that combination of Lcucaena <strong>and</strong> hybrid napier '<strong>IGFRI</strong>-3' gave<br />
the maximum green fodder yield (2031 q{ha). This legume grass combination was significantly<br />
superior to rest of the treatments tried in the investigation.<br />
2. Lleotype selection under intensive forage farming system with special reference to<br />
continued tree cropping'<br />
This was tle second year of the investigation. In all 3 cuts from leucaena <strong>and</strong> five-cuts<br />
from hybrid napier were taken during the period under report. The green fodder yield (pooled<br />
89 )
asis) under various treatments was statistically analysed <strong>and</strong> intercropping of Lcucaena-r<br />
Hybrid napier '<strong>IGFRI</strong>-3:gave the highest green fodder yield (2783 q/ha) which was significantly<br />
higher over rest of the treatments' The other treatments in order were Leueaena+HybriJ<br />
lapier'<strong>IGFRI</strong>-60' <strong>and</strong> Leuceana-rNB-21.<br />
3. Intercroppng studies' with sorghum ideorypes under intensive forage farming system<br />
with special reference to continued forage tree cropping.<br />
Treatments comprised monocropping of Leucaena <strong>and</strong> the three sorghum ideotypes<br />
(S. bicolor, S. almum <strong>and</strong> S. Sudanensey <strong>and</strong> intercropping of these sorghum ideotypes with<br />
Leucaena, In all there were seven treatments laid out in raridomised block design with three<br />
replications.' During the winter season sorghum was succeeded by a crop of Brassica for<br />
fodder both under sole as well as intercropping treatments, Leucacna, Sorghum <strong>and</strong> Brassica<br />
were sown on March 2, March 23 <strong>and</strong> November 15, respectively. Basal fertilization included<br />
30 kg N +30 kg P20s/ha for Leucaena <strong>and</strong> Sorghum<strong>and</strong> 30 kg N /ha for Brassica. Top<br />
dressing of 30 kg N/ha was made to sorghum on April 20 <strong>and</strong> after first, second <strong>and</strong> third<br />
cuts <strong>and</strong> to the Brassica on December 15. For green fodder yield four cuts were taken from<br />
Leueaena <strong>and</strong> sorghum <strong>and</strong> one cut from Brassica, during the period under report,<br />
Treatment Leucaenc-l-S', Sudanznse-Brassica gave maximum green fodder yield (1327<br />
q/ha). Next best treatment was Leucaena-rS: bicolor-Brassica followed by S. sudanense<br />
Brassica. Pure Leuceana gave the lowest yield (561 q/ha). Among intercropping treatment<br />
Leucaena performed best with S. bicolor. Among sorghum ideotypes, maximum yield was<br />
achieved with S. sudanense under intercropping treatments. Thus,
Sorghum intercropped with Snevri gave significantly higher green fodder yield (529<br />
qjha) as compared to the remaining treatments. Sorghum component in intercropping racorded<br />
higher green fodder yield (452 qjha) as compared to pure crop of sorghum (382 qjha),<br />
though Shevri gave the least (77 qjha) green fodder yield in association with sorghum as<br />
compared to maize (196 qjha) <strong>and</strong> teosinte (193 qjha).<br />
Maze-l-shevri <strong>and</strong> teosinte-j-shevri gave green fodder yields of the order of 353 qfha<br />
<strong>and</strong> 4.53 l{jha against 260 <strong>and</strong> 346 qjha obtained under sale crop of maize <strong>and</strong> teosinte,<br />
respectively. Similar trend was also observed for dry-matter yield:<br />
,<br />
5. Selection of a suitable cereal perennial fodder crop under continued tree cropping.<br />
This was the first year of the trial. Treatments comprised pure planting of cereal perennial<br />
fodder crops (Hybrid napier, guinea grass <strong>and</strong> N<strong>and</strong>i grass) <strong>and</strong> Sesbania gr<strong>and</strong>iilora <strong>and</strong><br />
intercropping treatments (tree-l-hybrid napier guinea grassjN<strong>and</strong>i grass). In all there were<br />
seven treatments laid out in r<strong>and</strong>ornised block design with three replicates.<br />
Two cuts Were recorded from grass component during the period under report. Pure<br />
planting of hybrid napier registered maximum green fodder (l076 qjha) <strong>and</strong> dry matter<br />
(269'9 qjha) yield, Hybrid napier, guinea grass <strong>and</strong> Setaria recorded 0.67 kg, 0.37 kg <strong>and</strong><br />
0.26 kg under sale cropping <strong>and</strong> 0.60 kg, 0.48 kg <strong>and</strong> 0.24 kg dry matter per plant in association<br />
with the tree component, respectively.<br />
5.3 Feasibility of achieving maximum fodder production through spatio-temporal arrangements<br />
in forage crops.<br />
(Shivaji prasad)<br />
1. Cross vs, parallel intercropping of safflower in rabi forages (berseem <strong>and</strong> senji).<br />
There were seven treatmentsTTj : Safflower two rows followed by berseem two rows<br />
each at 30 em row spacing; T 2 : Safflower two rows followed by 'senji two rows at 30 ern. row<br />
spacing; T 3 : Berseem at 30 ern row spacl11g in full plot crossed sown with safflower at 50 em<br />
row spacing; T 4 : senji at 30 cm row spacing in full plot crossed sown with safflower at 50 em<br />
row spacing; T5: Safflower (pure); T G : Berseem (pure): <strong>and</strong> T 7 : Senji (pure) .each at 30 em<br />
row spacing) repeated thrice in RBp.<br />
( 91 )
Treatment wise there were significant differences in total forage yields. The combined forage<br />
yields under cross planting system was highest <strong>and</strong> proved to be significantly superior yielding<br />
followed by berseem <strong>and</strong> safflower when sown under parallel planting system (310.83 qjha),<br />
The combined forage yield of senji <strong>and</strong> safflower under cross planting system (286.38 q!ha)<br />
was significantly better than their production under parallel planting system (237.77 qjha).<br />
There was no significant difference in the pure forage yields of safflower (292.77 qjha) <strong>and</strong><br />
safflower plus senji (286.38 q!ha) Sown under cross planting system. Also there was no significantdifference<br />
in the yield levels of safflower (pure) (292.77 q jha) <strong>and</strong> safflower plus senji<br />
under cross plinting (286.38 q!ha) or safflower plus berseern (310.83 q/ha) <strong>and</strong> safflower pure<br />
(292.77 qjha),<br />
The bare soil respiration was 2.266 mg CO 2 in 24 hours (day <strong>and</strong> night) period. The<br />
cropped area had more respiration than the uncropped area (average value being around 13 mg<br />
CO 2!24 hrs. Also the crop respiration gradually decreased from top to the middle height of<br />
the crop canopy, top average being more than 4 mg CO 2/24 hI'S. <strong>and</strong> around 2.75 mg CO~d24<br />
hrs on the middle height of the crop cJ.nopy. But it SUddenly rose m lny folds.on bottom of<br />
the crop i.e. on soil surface approaching to an average v.ilue of 13.8mg CO 2!24hrs. This might<br />
be on account of root respiration. The legume crops (berseern <strong>and</strong> senjis had more respiration<br />
rate than safflower either sown pure or in mixed culture. The respiration rate on ground of<br />
senji plots, mono as well as intercrop, was higher than bersecrn mono or intercrop.<br />
2. Performance of cross vs parallel planting of f'oraacs under pigeon pea based forage<br />
intercropping systems.<br />
There were seven treatme 1tSas (1) pigeon pel (pure) lines at 100 em row spacings, (2)<br />
pigeon pea lines at 100 em row spacing intercropped with cowpea at 30 em ro v spacing, (3)<br />
pigeon pea lines at 100 em row spacing intercropped with teosinte at 30 cm row spacing, (4)<br />
pijeon pea lrnes at 100 em row spacing, cross planted with cowpea at 30 em row spacing, (5)<br />
pigeon pea at 100 em row spacing cross planted with teosinte at 30cm row spacing, (6) teosinte<br />
(pure) at 30 em row spacing <strong>and</strong> (7) cowpea (pure) at 30 ern row spacing. The experirnant<br />
was laid out in RBD with three replications,<br />
Pigeon pea was not accounted for forage yield. There was a signjfican,t dilT\:rence in the<br />
green forage yields of various treatnents. The highest green forage. was recorded with teosinte<br />
(476.6 q/ha) when sown as mono Ciap followed by teosinte planted with pigeonpea (469.9<br />
q!ha) under paralled planting system. The lowest yield recorded was 159.9,q!ha for cowpea<br />
sown with pigeonpea under parallel planting system.<br />
( 92 )
Cross planting system for cowpea with pigeon pea gave significantly better yield (247.7<br />
q!ha) under parallel planting system (159.9 q!ha). However, in case of teosinte with pigeon<br />
pea, sown in either system, the yields were of same order with no significant. difference. There<br />
was no significant difference in the yield of cowpea sown either as pure crop (265.5 qjha) or<br />
with pigeon pea under cross planting system (247.7 q/ha;. Thus, in cross planting system, the<br />
yield of pigeon pea becomes an additional gain.<br />
3. Pigeon pea based forage intercropping systems under replacement series with cowpea,<br />
M, P. Chari <strong>and</strong> teosinte for maximum forage production,<br />
This experiment comprised five treatrnenrs (2) cowpea one line followed by M. P.<br />
Chari one line followed by pigeon pea one line each at 30 em row to row spacing, (2) cowpea<br />
one line followed by teosinte one line followed by pigeon pea one line cach at 30 em row to<br />
row spacing, (3) cowpea two li~es followed by M. P. Chari 2 lines followed by pigeon pea<br />
one line each at 30 cm row to row specings, (4) cowpea 2 lines followed by teosinte 2 lines<br />
followed by pigeon pea one line cach at 30 em row to row spacing <strong>and</strong> (5) M. P. Chari one<br />
live followed pigeon pea one line followed by teosinte one line vcach at 30 ern row to row<br />
spacings. Experiment was laid out in RBD replicated thrice.<br />
The green fodder yields were pooled treatmentwise, 'pigeon pea was not accounted<br />
for fodder purpose. The mean green fodder yield was highest (247.7 q/ha) in cowpea (1)<br />
M. P. Chari (I) Pigeon pea (1) series followed QY cowpea (2) M. r. Ch~ri (2) Pigeon pea<br />
(1) 234.4 q!ha) <strong>and</strong> cowpea (2) teosinte (2) Pigeon pea (1) (232.9 q!ha) but the differences<br />
not significant. The series namely, M. P. Chari (1) Pigeon pea (1) teosinte (1) yielding<br />
195.5 qjha <strong>and</strong> cowpea (2) M. P, Chari (2) Pigeon pea (1) yielding 167.7 q!ha were<br />
significantly inferior to other three treatments.<br />
. .<br />
The higher population density of M. P. Chari tends ~O hamper the yields of companion<br />
crop, Among the 'better yielding series, cowpea (2) teosinte (2) pigeon pea (1) is' supposed<br />
'to be ~utritionall~<br />
much better than the others due to high row-ratios of legume component.<br />
,<br />
( 93 )
AG~6<br />
"<br />
AGRO"':FORAGE· FORESTRY PRODUCTION SYSTEMS<br />
6.1 r.Evalnation of differ~ntforag~forestrYJpasture systems with the introduction of<br />
legume.<br />
(Fateh Singh)<br />
1. Evaluation of forage forestry systems with the introduction of legume including<br />
browses.<br />
This was the 4th year of 'the investigation ralated to fuel 'arid fodder ;production. '111<br />
India, with its 58 rnilliorr ha under waste l<strong>and</strong>-of various' lypes viz., ravine, saline, alkali<br />
soils. grazing' l<strong>and</strong>s, 'degraded forests, roads, railway sides, rocky brokenhlll terrains 'Which at<br />
present are agriculturally unproductive can be utilizedfor' both'fuel .<strong>and</strong> fodder production.<br />
The two tier system. involving grasses<strong>and</strong>Iegurnes along with fuel/fodder trees would be<br />
introduced -in the above area to generate ample-feed <strong>and</strong> fodder fof animal 'production, fuel<br />
wood for rural commnity <strong>and</strong> saving the cow dung from-wastage <strong>and</strong> 'diverted forbiogas.production<br />
or use as manure. Keeping above points in view an experiment was carried out to<br />
explore the feasibil ity of utilizing such l<strong>and</strong>s for fuel <strong>and</strong> fodder production. The experiment<br />
consisted of seven treespecies viz. Acacia tortilis, Leueaena leucoaephala, Dichrostacliys<br />
~lltans, Dalbergia sissoo, Sesbanla aegyptica; Azadirachta indica <strong>and</strong> Albizziaamarain combination<br />
with three nourshing 'Iegumes. viz., Sesbaniaa egyptico, Leucaena leucocephcla <strong>and</strong><br />
Stylot a ithe» hamata along with control. The maximum height (8 rn) was .reoorded i-i<br />
Leucaena 1eucocephaia, <strong>and</strong> the -minimum (3.4 .m) in Dichrostachys nutans, The growth of<br />
other species co hid -be: r ted 'as intermediate. Low temperature WaS observed under 'ncurshing<br />
legume plots as compared to control. Maximum basal diameter wss recorded '(16',2
2. Compatibility of intercropping with Cenchrus ciliaris,<br />
In this experiment eight intercrops were introduced in the established,Cenchrus cillaris,<br />
viz; Cowpea (HFC-42-1), guar'(<strong>IGFRI</strong>-212), Dhainch (annual), M. P. Chari, maize (African<br />
tal1), bajra (An<strong>and</strong>, Rajko) <strong>and</strong> sorghum (PC-6)' For comparison, pure Cenchrus ciliaris<br />
was also maintained. These nine treatment combinalions'were tried in" r<strong>and</strong>ornised block<br />
design' with three replications. The plot size was 4 X 3 cm (net), Two cuts of Cenchrus<br />
were taken in the Ist week of August <strong>and</strong> Jast week of September.<br />
The yield of Cenchrus ciliaris was not reduced by the intercrops, However, it was.<br />
maximum in pure grass plots (40.7 qjha) fol1owed by Cenchrus+cowpea. Among, intercrops<br />
sesbania produced maximum fodder (20 q/ha d. m.), However, the differences 'were found<br />
statistically not significant. The maximum dry matter pi oduction (grass-l-Intercrops) was<br />
recorded in the treatment Cenchrus-s- Dhaincha, It is conluded from the experiment that<br />
some bonus yield can be obtained by the intercrops in Cenchrus ciliaris to maximise the output<br />
p~r unit area <strong>and</strong> per unit time<br />
6.2 Investigation on the integration of appropriate fodder crops in r...odjcash crop rotations<br />
<strong>and</strong> as intercropping.<br />
(A. S. Gill)<br />
1. Sugarcane as cash crop.<br />
Treatments comprised pure planting of sugarcane <strong>and</strong> Luccaena as well as their intercropping<br />
with Leucaena kept uncut <strong>and</strong> cut at 50 ern, 100 em, 150 cm <strong>and</strong> 200 ern from the<br />
ground surface. In all, there were Seven treatments. Leucaena <strong>and</strong> sugarcane were planted<br />
on August 14, 1983 <strong>and</strong> February 16, <strong>1984</strong> respectveiy, The cutting in Leucaena was done<br />
on June 28, <strong>1984</strong>, Fertilizer schedules of 20 N +30 P:105jha (basal) to Leucacna <strong>and</strong> 120 N<br />
(basaljsplit)+30 P205jha (basal) to sugarcane. Sugarcane was harvested on November 15,<br />
<strong>1984</strong>. <strong>Fodder</strong> (leaf) <strong>and</strong> fuel (stem) yields were recorded in Leucaena on December 15,<br />
<strong>1984</strong>.<br />
Maximum sugarcane yield <strong>and</strong> fodder jfuel production in Leucaena was registered when<br />
these crops were under solid planting. Among intercropping treatments, sugarcane gave best<br />
performance with Leuceana cut at 50 em height, whereas maximum fodder jfuel in Leucaena<br />
was registered with uncut treatment. Thus, this study indicated that Leucaena was not<br />
ideal forage plant to be associated with sugarcane.<br />
( 95 )
2: Wheat as food crop.<br />
(a)<br />
Under agrotorestry system'<br />
,,0 ••<br />
. Treatments comprised thirteen important wheat varieties planted under continued tree<br />
cropping iLeucaena spaced at 5 m x l m planted during 1982). The experimental design was<br />
r<strong>and</strong>ornised block with three replications. Wheat varieties were sown on December 12 in<br />
rows 25 ern apart using 100 kg seed ratejha. <strong>and</strong> were fertilized with 120 kg N +45 kg P205<br />
/30 kg K 20 fha.<br />
Among the wheat varieties, highest grain yield was obtained with Raj 1555 t44.1 qjha)<br />
followed by WH 147 (38.3 qjha) <strong>and</strong> UP 115 (37.2 q/ha) Thus, the study highlighted that<br />
wheat crop can be raised successfully' under Leucaena.<br />
(b)<br />
Grain farming system.<br />
The experiment with some wheat varieties was laid out under open canopy (no tree<br />
component involvedjfor comparison. The result revealed that the highest yield(44.56 q!ha)was<br />
registered with Raj 1555 followed by WH 146 (40.16 qj ha) <strong>and</strong> Mukta (35.96 qjha).<br />
( 96 )
DIVISION OF SOil SCIEN CE<br />
SS-I: SOIL STUDIES UNDER INTENSIVE FODDER PRODUCTION<br />
1.1 Soil fertility <strong>and</strong> plan t nutrition studies,<br />
(S. B. Tripathi <strong>and</strong> C. R. Hazra)<br />
1. Effect of levels <strong>and</strong> source-s of P in forage production of Melilotus<br />
Field experiment was taken 'up to work out the affect of P sources (chemical-P, organic<br />
-P <strong>and</strong> their combination) at different levels of application on forage yield of senji <strong>and</strong><br />
nutrient status of soil. The results are as follows:<br />
(i)<br />
Forage yield<br />
The forage yield increased upto 120 kg P205/ha through FYM over control, whereas<br />
similar response was obtained with 40 kg P20sjha through single superphosphate. Combined<br />
application of 80 kg P20sjha through organic <strong>and</strong> inorganic sources (1:1) increased yield<br />
signficantly as compared its application either through SSP or FYM. The highest forage<br />
production (364.5 q green <strong>and</strong> 80A,q drymatterjha was obtained when 120 kg P20s/ha was<br />
applied half as SSP <strong>and</strong> hals a5 FyM. ,<br />
(ii)<br />
P uptake<br />
. P application increased nutrient uptake as compared to control treatment. Increasing<br />
levals ofP with all the sources incereased N uptake. The performance of SSP was significantly<br />
superior to FYM in giving higher P uptake at all levels of its application, Combined use of<br />
FYM <strong>and</strong> SSP sn 1:1 ratio to supply 120 kg P 20s/ha significantly increased' nutrient<br />
uptake.<br />
(iii)<br />
Soil fertility<br />
Ec end organic carbon values were generally higher with increased P application.<br />
Available N<strong>and</strong> P contents in soil at harvest increased with an increase in P levels. FYM had<br />
higher beneficial effect in influencing available N<strong>and</strong> P contents than SSP or their combination,<br />
( 97 )
2. Effect of N fertilization on oats in association with legumes <strong>and</strong> non-legume<br />
inter crops.<br />
The field experiment was laid out to know the contribution ot legumes <strong>and</strong> non-legumes<br />
components \.0 forage production <strong>and</strong> soil fertility under different N levels (25, 50, 75 <strong>and</strong><br />
100 per cent of recommended dose of 120 kg N/ha to oat crop). Legumes (pea, senji a-id<br />
lucerne) <strong>and</strong> non-legumes (safflower <strong>and</strong> chinese cabbage) were taken as inter crops in<br />
oats.<br />
The results indicated that green <strong>and</strong> dry fodder yield of oat as well as inter crops<br />
increased with increasing levels of N. However, significant response to N was obtained at 75%<br />
N level with oat or oat-l-non-Iegurne <strong>and</strong> 50% with oat-l-Iegume mixtures. Legumes <strong>and</strong><br />
non-legumes as inter crops with oat responded significantly to nitrogen application upto 100%<br />
except lucerne which sowed significant response at 75% N level. The forage yield of cat<br />
reduced with various crop mixtures as compared to pure oat & maximum reduction was noted<br />
with oat-l-chinese cabbage. Oat-l-Iucerne was found to produce maximum yield. On the basis<br />
of total relative forage yield under different cropping systems, the response to N were higher<br />
with oat-l-legume than oat-l-nou-Iegumes.<br />
3. Phosphte availability <strong>and</strong> fixation under .ntercropping system of napier+legume.<br />
Field experiment was laid out under intercropping system of napier-l- legumes with P<br />
fertilization to find out out the effect of P levels on forage production in different seasons, i. e.<br />
winter, summer <strong>and</strong> rainy seasons. For this purpose P was applied in all the three seasons, two<br />
seasons <strong>and</strong> only one season. Forage legumes berseem (rabi) co .pea (summer) <strong>and</strong><br />
cowpea (khari f ) were grown with napier maintained on perennial basis.<br />
It was observed that the application of P increased forage yields of legumes <strong>and</strong> napier<br />
as compared to control <strong>and</strong> maximum response was obtained with winter season applica ion<br />
followed by rainy season. Phosphorus showed least response in summer. Forage yield of napier<br />
+legume increased with increasing levels of P. The application of P both in winter <strong>and</strong><br />
summer showed higher response in increasing forage yield than its application in rainy <strong>and</strong><br />
winter season or summer rainy Seasons. However, the maximum forage production was recorded<br />
when P application was made @ 60 kg P 2 0 5/ha in all the three seasons.<br />
4. Effect of Mo <strong>and</strong> P application on forage production of berseern.<br />
Field experiment was carried out to how the effect of Mo <strong>and</strong> P application on<br />
98 )
forage production of berseem. Mo was applied through different methods (full basal,' full<br />
foliar <strong>and</strong> basal plus foliar) with various levels ot P (0, 50, 100 <strong>and</strong> 150 kg P 205/ha),<br />
1 he result indicated that the forage yield of berseern increased with increasing<br />
level of P <strong>and</strong> significant response was obtained upto 100 kg Pz05/ha, The yields with 100<br />
ard 150 kg P203!ha were, however. at par. The green <strong>and</strong> dry fodder. yield of berseem increased<br />
significantly with Mo application' as compared to control treatment. Application of<br />
Mo as full foliar increased forage yield significantly over either half or full soil applied Mo.<br />
The highest forage yield of berseern was recorded with ISO kg PzOs/ha in conjunction with<br />
1.5 kg Mo0 3/ha (foliar spray)" The uptake of P <strong>and</strong> Mo was also found to follow the trend<br />
of forage yields.<br />
5. Effect of N fertilization to oats on forage production <strong>and</strong> soil properites under different<br />
crop COVers.<br />
Field experirneat was conducted with graded doses of N (0, 10, 20, 40, 60 <strong>and</strong> 80 kg<br />
N Iha) to oats after Khari( crops of sunhemp, cowpea, guar <strong>and</strong> fallow for finding out the<br />
contribution of legmus towards forage production <strong>and</strong> soil fertility; The forage yield was<br />
increased with increased N application under all crop covers.. The crop of oat responded<br />
upto 60 kg N Iha under follow, sunhemp <strong>and</strong> guar upto 80 kglha under cowpea with respect<br />
to green forage yield. The data on dry forage yield, however, indicated that oat responded<br />
to 80 kg N/ha under follow, 60 kg N/ha under sunhemp/guar <strong>and</strong> 80 kg N/ha under cowpea<br />
The yield obtained under follow plot with 80 kg N/ha was achieved with 20 kg Njha under<br />
cowpea/sunhemp <strong>and</strong> with 40 kg Njha under guar. Oat under sunhernp <strong>and</strong> cowpea yielded<br />
100% <strong>and</strong> 74% more than under fallow. Similarly, the yields under guar without N fertilization<br />
was 29% more than unfertilized fallow.<br />
6, Effect of nitrogen fertilization on forage production <strong>and</strong> soil properties under. intercropping<br />
system of napier <strong>and</strong> legumes.<br />
The field experiment was undertaken to work out the contribution of legumes to the<br />
total biomass production <strong>and</strong> fertility status of soil under intercropping system of napier<br />
<strong>and</strong> legumes as compared to monocropping of napier with N application. Nitrogen at 0, 50,<br />
100 <strong>and</strong> 150% of recommended doses of 250 kg N Ihajyear to napier was applied to intercropping<br />
systems in various crop seasons. Forage legumes berseem, senji <strong>and</strong> pea in rabi <strong>and</strong><br />
cowpea, guar <strong>and</strong> sunnemp in summer <strong>and</strong> kharif were grown wLth hybrid napier.<br />
, .<br />
( 99 )
The result indicated that the application of nitrogen in gene raj increased forage yield<br />
of hybrid napier as legumes in all crop seasons. The maximum forage production was recorded<br />
in intercropping system of napier-l-berseem in rabi <strong>and</strong> napier-l-sunhemp in Kharif <strong>and</strong><br />
summer seasons. Forage production was found to be higher in Khartf season followed by<br />
summer. Legume yields were more during rabi than other seasons, Napier during rabi <strong>and</strong><br />
legumes during Kharif showed minimum productivity. The total forage yield of napier+ legumes<br />
in intercropping system increased by 121, 128, 115 <strong>and</strong> 112 percent at 0, 50, 100 <strong>and</strong><br />
150 percentof applied N over sole cropping of napier respectively. Hybrid napier yielded<br />
1098, 1234, 1450 a~d 1592 q/hajannum at corresponding levels of nitrogen nutrition.<br />
1.2 Studies on bacterial mediated N 2 fixation for increased productlvity in cultivated<br />
cereal <strong>and</strong> legume fodder crops.<br />
(M. R. Pahwa)<br />
1. Inoculation with varying cell population densities of Rhizobium.<br />
In a pot culture experiment using medium black soil, berseem seed inoculation was<br />
tried at five cell population densities (0, 2.5 x l 0 2 , 2.5 X 104, 2.5 X 106 <strong>and</strong> 2.5 x 10 8 cells/<br />
/ml).<br />
Maximum beneficial effect on nodulation, green <strong>and</strong> dry matter accumulation was observed<br />
with the inoculum containing 2.5x 10 6 cellsjrnl, However, significant differences were<br />
not obtained between 2.5 X 106 <strong>and</strong> 2.5 X 10 8 cells/ml.<br />
2. Interaction with plant nutrients.<br />
It<br />
Separate investigations were carried out on berseern, lucerne <strong>and</strong> pea in pot <strong>and</strong> microplot<br />
conditions with a view to find out the optimum level of Zn, Mo <strong>and</strong> Sunder rhizobial<br />
inoculated crops. The experimental soil Was red with a PH of 8.2.<br />
Out of the four levels of sulphur (0,10,20 <strong>and</strong> 30 kgjhat, 20 kg Sjha interacted significantly<br />
in stimulating nodulati on <strong>and</strong> increasing green <strong>and</strong> dry matter yields of berseem,<br />
Inoculation alone .gave an added benefit in terms ofgreen forage yield to the extent of 31%<br />
over uninoculated control in pea, Inoculation increased the effectiveness of symbiotic N 2 <br />
fixation by 40,6,(~ over 20 kg ZnS04/ha.<br />
100 )
Similarly significant increase in green <strong>and</strong> dry matter yields of lucerne was obtained<br />
with 20 kg ZnS04/ha inoculated treatment which also gave maximum nodulation (20/plant)<br />
at second cut.<br />
Application of 2 kg Mojha appeared to be optimum not only for enhancing nodulation<br />
reot length but also bringing about significant improvement in forage yield of<br />
lucerne.<br />
3. Rocx-pyrlte in lucerne-Rhizobium symbiotic system.<br />
The addition of appropriate dose of rock pyrite has been found to playa key role in<br />
bringing down the pH at a point where the microbial activities is stimulated. The experiment<br />
was conducted in pots filled with red soil (pH 8.2) consisting of five levels of rock-pyrite<br />
(), 2.5, 5.0, 10.0 <strong>and</strong> 15,0 t/ha) under inoculated <strong>and</strong> uninoculated series.<br />
Significant increase in total green <strong>and</strong> dry matter accumulation was obtained with<br />
inoculated 5 t/ha treatment. This also exhibited a positve influence on nodulation <strong>and</strong> root<br />
length first cutting.<br />
4. Residual effect of organic amendments cellulolytic fungi <strong>and</strong> Rhizobium inoculation on<br />
growth <strong>and</strong> fodder yield of oat following cowpea.<br />
The residual effect of three organic amendments (dried Sesbania aegyptiaca leaves,<br />
farm yard manure, <strong>and</strong> wheat straw) at 0 <strong>and</strong> 5 t(ha with four types of inoculation (control,<br />
Rhizobium, mixed culture of Chaet omium globosum-rAspergillus higher fungi <strong>and</strong> Rhizobium<br />
+composite fungi) was studied on forage oat grown after cowpea. Sesbania amended soil<br />
receiving Rhizobium <strong>and</strong> mixed fungi produced green <strong>and</strong> dry matter yields equivalent to that<br />
obtained with farm yard manure+ Rhizobium treated soil. Inoculation with Rhizobium+fungi<br />
contributed 18% more to forage yield of oat. Thus, the study revealed the benefits of microbial<br />
ino culation <strong>and</strong> organic amendments on the subsequent forage crop.<br />
5. Residual effect of wheat straw, cellulolytic fungi <strong>and</strong> rhizobial inoculation on growth<br />
<strong>and</strong> fodder yield of oat following cowpea (NP-3).<br />
The data indicated maximum stimulation in green (13.7 g/plant) <strong>and</strong> dry matter<br />
~ accumulation (3.4 g/plant) of oats under soil amended with wheat straw at 5 t/ha+<br />
Rhizobium.<br />
101
f, b··Response of maize-lucerne rotation to single <strong>and</strong> combined inoculation of homologous<br />
(tRhizobium, Azotobacter chroococcum <strong>and</strong> A. brasilense.<br />
Both the crops in the sequence were repeatedly inoculated with Rhizobium mellloti,<br />
AzotolJHcter chroococcum <strong>and</strong> A. brasilense either singly or in combination at the time of<br />
sowidg. Combined application of Rhi zobium-r Azot obccter <strong>and</strong> Rhizobium-vAzospirillum<br />
significantly increased forage yield with the result that the highest green matter was obtained<br />
with the association of Rhizobium-s-Azotobacter (28.8 g{plant). The associative effects of<br />
these cultures continued to exhibit increased nodulation upto second cutting.<br />
. The experiment also included fodder maize during kharit' <strong>1984</strong>. Surface sterilized maize<br />
seedJtVijay composite) were inoculated with single <strong>and</strong> mixed cultures of N 2 fixers. Significan1l'y<br />
higher green (27.9 g{plant) <strong>and</strong> dry maiter (6.0 g{plant) yields were recorded with<br />
mixe5dl~ultL\reof R. meliloti -s-Azospirillum +Azotobacter.<br />
7. JfJiEvaluation of efficacy of single <strong>and</strong> multi-strains culture of Azotobacter on oat <strong>and</strong><br />
Jo6orghutn.<br />
Separate studies wuh three strains of proven efficiency (A41, M4 <strong>and</strong> C2) were<br />
undertaken in pots filled with red soil of normal pH. Inoculation with two strains (A41 +C2)<br />
gave-superior performance in respect of forage yield of oat. On the other h<strong>and</strong>, the associative<br />
effect of M4+C2 produced the highest green matter yield of sorghum. These observations<br />
suggest that mixed culture of Azotobacter gives better results than in isolation.<br />
,1 J1<br />
8. m,,~esponse of forage oat to inoculation with mixed strains of Azotobacter <strong>and</strong> nitrogen<br />
lio{ertilization.<br />
~f.'~our levels of N (0, 40, 60 <strong>and</strong> 120 kg N jha) were tried in presence <strong>and</strong> absence of<br />
mixdaOdtrains of Azotobacter (M 4+C2 ) . The experiment conducted in microplots was<br />
termigJted after 115 days of sowing. The green forage yield (262.8 qjha) with inoculation was<br />
17.1% higher than that without nodulation (224.3 qjha). The combined treatment of40 kg<br />
N jha <strong>and</strong> inoculation produced comparable forage yield with 60 kg N jha. The results, thus,<br />
suggy~t!jl saving of about 20 kg N jha through the application of mixed strains without<br />
affecting the forage yield.<br />
9. Effect of inoculation with Azotobacter, Azospirlllum, root extract of hybrid napier<br />
1::lj'<br />
. J'lB-6 <strong>and</strong> rhizosphere soil extract on forage yield of oat.<br />
The experiment was conducted to know the comparative benefits from N 4 - fixers as<br />
( 102 )
well as root <strong>and</strong> rhizospheric soil extract of hybrid napier. A 25~~ root <strong>and</strong> rhizospheric soil<br />
ext act was prepared. This was used in two forms, (i) cold <strong>and</strong> (ii) neated for 15 minutes <strong>and</strong><br />
then cooled. The combined application of rhizosphere soil extract <strong>and</strong> Azotobacter showed<br />
maximum stimulatory effect on green matter. Application of hybrid napier root extract on<br />
the seed in conjunction with Azotobacter inoculation also exhibiteu similar response on forage<br />
yield of oats.<br />
10. Response of oat <strong>and</strong> sen]! under intcrcropping system to inoculation with Azotobacter<br />
<strong>and</strong> Rhizo'iium.<br />
Si~nificantly higher green forage yield was obtained when senji <strong>and</strong> oat received inoculation<br />
of Rhizobium <strong>and</strong> Azotobacter respectively (353.3 q/ha). Uninoculated oat (243.3 qjha)<br />
<strong>and</strong> senji 210.0 q/ha) produced lower forage yields indicating that both the crop components<br />
111 in.ercropping system need ~o be inoculated with Nz-fixers for high forage production.<br />
11, Effect of nitrogen fertilization <strong>and</strong> inoculation with Azospirillum On growth <strong>and</strong> forage<br />
~ ield of teosinte.<br />
In microp lot experiment, four levels of N (0, 30, 45 <strong>and</strong> 90 kg/hal Were tested in<br />
presence <strong>and</strong> absence os Azospirillum culture. Initial Azospirillum count in soil was found<br />
10 be Ct.16 xl 04 cellsjg. Seeds of teosinte were inoculated by spinkling an aquoue solution<br />
cf a sticker (6 g of carboxymethyl cellulose in 500 ml of water) <strong>and</strong> sterilized farm yard<br />
manure (1: I) based powder inoculant containing live cells of the bacteria. The maximum<br />
green forage yield was obtained at 90 kg N /ha. Inoculation with Azospirillum registered on<br />
an average 10.6% increase in forage yield over un inoculated control. The efficacy of the<br />
culture was lower with nitrogen fer rilization. There was a saving of about 15 kg N/ha<br />
through the culture as green forage yields with 30 kg Njha-l-Inoculation <strong>and</strong> 45 kg N/ha<br />
were comparable. The rhizosphere Azospirillum count was the highest with 30 kg N /ha+<br />
inoculation (13.5 X 10 4 cells/g). The rhizospher/soil count ratio for inoculation was 60<br />
against merely 5 for uninoculation.<br />
12. Effect of inoculation with mixed culture of Azospirillum Azotobacter <strong>and</strong> N fertilization<br />
on growth <strong>and</strong> fodder yield of sorghum (M. P. Chari):<br />
A microplot experiment was conducted for a period of 70 days to assess the associative<br />
effect of mixed cultures in respect of forage productivity as well as saving of nitrogen<br />
Inoculation alone was observed to register about 25% higher green forage yield over uriinoculated<br />
control (183.3 q/ha). The inoculated 30 kg N/ha treatment recorded alost comparable<br />
103 )
green forage yield (254 qjha) to that of 45 kg Njha (252 qjha) indicating, thereby a<br />
net saving of 15 kg Njha. The graded levels of nitrogen however, showed continuous decrease<br />
ni the efficacy of the culture.<br />
13. Effect of leaf extract of Lcucaena leucocehala <strong>and</strong> rhizobial inoculation on nodulation,<br />
growth <strong>and</strong> forage yield of cowpea (NP-3).<br />
In a pot culture study the effect of five concentrations of dried Leucaena leaf extract<br />
(0,0.5, 2.5, 5.0 <strong>and</strong> 10%) was examined on c'.:)\vpea-Rhizobium symbiotic system. Dried<br />
leaves of Leucaena were ground extract was prepared in two forms, viz, cold (C) <strong>and</strong> autocJaved<br />
<strong>and</strong> then cooled (AC)~ The data showed inhibitory effect of leaf exract either cold<br />
or autoclaved cooled on nodulation, growth, green <strong>and</strong> drv matter yields. Inoculation alone,<br />
exhibited the highest green (95.0 gjplant) <strong>and</strong> dry' matter (12.9 gjplant) accumulation. It<br />
is postulated that the leaf extract might contain<br />
on the efficacy of rhizobia.<br />
toxic compounds causing deleterious effect<br />
1.3 Improving forage productivity <strong>and</strong> efficacy of indigenous rock phosphates through<br />
phosphate solubilizing micro -organisms.<br />
(M. R. Pahwa)<br />
1. Effect r f phosphate solubilizing microorganism <strong>and</strong> type of rock-phosphate on growth<br />
<strong>and</strong> fedder yield of Azotobacter inoculated oats <strong>and</strong> sorghum (M. P. chari).<br />
Separate studies were initiated with a view to find out the right combination of rock<br />
phosphate <strong>and</strong> micrco ganisms for augmenting the forage yield, Seeds were inoculated with<br />
suspension of Azotobacter culture. There were twenty treatment combinations involving five<br />
phospha e carriers (single super phosphate, Mussoorie, Luccadive, Udaipur <strong>and</strong> Vishakhapatnam<br />
rock phosphates) each at two levels (0 <strong>and</strong> 153 kg P20 5jha) with <strong>and</strong> without<br />
phosphate solubilizing organism. Udaipur rockphosphate in presence o~ Bacillus polymyxa<br />
H 6 significantly improved green (9.2 gjp!ant) <strong>and</strong> dry matter (24 gjplant) yields of oats.<br />
Phcsphobacterized seeds alone resulted in 33% higher green yield. The ncrease in green<br />
forage yield <strong>and</strong> dry matter accumulation may be due to increased efficiency of phosphate<br />
by the solubilizers. Therefore, the role of Azotobacter as a phosphate solubjiizer can not be<br />
r.iled out.<br />
Simi aIy, Vishakhapatnam rock phosphate Pseudomonas striata combination ranked first in<br />
improving plant height, green <strong>and</strong> dry matter yields of forage sorghum in red soil.<br />
104 )
1.4 Environmental analysis in different forage systems.<br />
(C. R. Hazra <strong>and</strong> Pradeep Behari)<br />
The present experiment on row d 'rections in pure <strong>and</strong> mixed st<strong>and</strong>s of oat was<br />
conducted during rabi 1983-84. The row directions were NE-SW, SE-NW, <strong>and</strong> N-S. The crop<br />
combinations were oat, oat-s-pea, oat+si!l1ji <strong>and</strong> oat+lucerne. It was observed that row<br />
crientation had a tremendous influence on herbage productivity. The SE-NW orientation<br />
yielded 28% more over N-S <strong>and</strong> NE-SW. Similarly, E-W orientation also gave 18% more<br />
yi~ld over NE-SW <strong>and</strong> N-S. The highest yield was noted with pure oat <strong>and</strong> inrercropping<br />
with legumes depressed the total yield by 16 to 22·X,.<br />
1.5 RainfaIl pattern <strong>and</strong> its role in forage crop planning in Buodelkh<strong>and</strong> region.<br />
(c. R. Hazr.i <strong>and</strong> D. P. H<strong>and</strong>a)<br />
Rainfall pattern an j probabilities.<br />
The rainfall variability-distribution of rainy days, probability of rain faIl <strong>and</strong> recurrence<br />
interval for drought were studied for Lalitpur <strong>and</strong> B<strong>and</strong>a districts of Bundelkh<strong>and</strong> region<br />
based on 17 years data. It was found that the rainfaIl received during four months of June<br />
September accounted for 91 per cent of the annual total at Lalitpur with 8 per cent distri-<br />
. buted in remaining months. Similarly, at B<strong>and</strong>a 75-89 per cent rain occurs between June<br />
September. The yearly variability of rainfall is about 43-63 per cent at Lalitpur <strong>and</strong> 10-25<br />
. per cent at B<strong>and</strong>a. The average rainy days worked. out to be 49 at Lalitpur <strong>and</strong> 45 at B<strong>and</strong>a.<br />
The rainfall per rainy day is 19,1 mm at Lalitpur <strong>and</strong> 18.5 mm at B<strong>and</strong>a The expected rainfaIl<br />
during monsoon months of June-July for two years recurrence interval were 77, 383, 324 <strong>and</strong><br />
j<br />
160 mm for Lalitpur <strong>and</strong> 46, 236,324 <strong>and</strong><br />
•<br />
118 mm for B<strong>and</strong>a, respectively. The probability<br />
of occurrence of drought is once in every three years ~n the month of June <strong>and</strong> September<br />
<strong>and</strong> once in seven years in July <strong>and</strong> August. The probability of occurrence of drought is once<br />
in three years at Lalitpur in June <strong>and</strong> July, while it is thrice in twenty years at B<strong>and</strong>a for the<br />
corresponding months' In August also, the probability of drought IS once in 9 years at<br />
B<strong>and</strong>a.<br />
Distribution of dry <strong>and</strong> wet spell.<br />
The rainfall data for Jhansi (1971-82), B<strong>and</strong>a (1955-77) <strong>and</strong> LaIitpur 0955-77) were<br />
analysed to know the dis! r.bution of dry <strong>and</strong> wet spells. At Jhansi, average number of wet<br />
days were 38.2 with maximum of 57 days .in 1977 <strong>and</strong> minimum of 20 in 1979. At Lalitpur<br />
105
maximum number of wet days were found to be 52 in 1961 while minimum were 3 in 1955<br />
with an average number of 35.1 At B<strong>and</strong>a, maximum number of wet days were found to be<br />
'43 in 1971 <strong>and</strong> the minimum of 6 in 1956 with an average number of 29.4 The X 2 test<br />
indicated that weather of a particular day is Independent of the weather of the immediate<br />
preceding day.<br />
At Jhansi, the average dry run was found to be 4.8 units <strong>and</strong> wet run 2.6 units. The<br />
average dry-wet cycle was of 7 units. It was also found that expected length of dry run was<br />
always greater than expected length of wet run. At Lalitpur, the average dry <strong>and</strong> wet run was<br />
found to be 6.8 <strong>and</strong> 2.1 units respectively. The average dry-wet cycle was 9.0 units. At B<strong>and</strong>a<br />
the average dry run was 7.2 <strong>and</strong> wet 1.8 units with average dry-wet run of 9.0.<br />
SS-2: SOIL STUDIES OF RANGELANDS AND PASTURES<br />
2.1 Studies on soil fertility status of grass covers of different districts of Bundelkh<strong>and</strong>.<br />
(S. B. Tripathi, C. R. Bazra <strong>and</strong> R. K. Tyagi)<br />
Soil samples from grazing. l<strong>and</strong>s in districts Damoh, Panna, Sagar <strong>and</strong> Chhatarpur were<br />
collected to study the effect of grass species <strong>and</strong> grazing on soil fertility status. It was observed<br />
that the grass cover under Dichanthium species in Damoh district had high fertility in terms<br />
of organic carbon, available N<strong>and</strong> P followed by Heteropogon <strong>and</strong> Themeda species in Sagar<br />
district Digiteria species in Chhatarpur <strong>and</strong> Sehima spp. in Panna district. In Panna district<br />
the soil fertility status in hilly terrain was found to be higher than plain area under natural<br />
covers of Sehima during rainy Season followed by crop cultivation during winter. Dichanthium<br />
<strong>and</strong> Het eropogon grass covers in Damoh <strong>and</strong> Sagar districts helped in building up higher soil<br />
fertility status with increased organic carbon, available N<strong>and</strong> P. Moreover, the soil moisture<br />
content in black soil was greater than red soil in respective grass covers.<br />
2.2. Studies on bacterial mediated N 2-fixation for increased productivity in pasture<br />
species.<br />
(M. R. Pahwa)<br />
Plant nutrients interaction with Rhizobium.<br />
The pot culture studies using red soil (pH 8.2) were conducted On two pasture legumes<br />
106 )
· tCent rocema pcbescens <strong>and</strong> Stylosanthes hamata) by inoculating surface sterilized seeds with<br />
pure cu t ire suspension of an efficient strain of Rhizobium to find' out optimum requirement<br />
of S<strong>and</strong> Zn,<br />
In g-neral, simple seed inoculation registered 19.21% higher green matter yield over<br />
uninoculated control. The combined treatment of 20 kg S/ha <strong>and</strong> inoculation showed further<br />
improvement in green yield to the extent of 27% Inoculation significantly increased nodulation<br />
<strong>and</strong> dry matter yield of C pcbescens.<br />
20 kg Sulphur/h]. interacted significantly with Rhizobium in increasing green forage<br />
y.eld of Stylosanthes hamata <strong>and</strong> the increase was of. the order of 35.4% Significant effect on<br />
nodulaton <strong>and</strong> dry matter yields was also noticed due to inoculation <strong>and</strong> sulphur fertilization.<br />
Application of 30 kg ZnS04/ha in presence of Rhizobium exhibited significant enhancem.nt<br />
in green <strong>and</strong> dry matter yields Centroccma pubescens. However, maximum nodulation<br />
was recorded at 10 kg ZnSo4/ha inoculated treatment (17 nodules/plant). It may, thus,<br />
be seen that these plant nutrients when applied in appropriate quantities..remarkably increase<br />
the efficacy of culture resulting into enhanced forage yields.<br />
Response of some grass species to Azospirillum.<br />
This was the third year of the exp~rim~nt<strong>and</strong> two more cuts were taken. Significant<br />
increase in green <strong>and</strong> dry matter production was observed in all the three grasses Cenchrus<br />
ciliaris; C. setigerus <strong>and</strong> Dichanthtum annulatumy with seedling inoculation. The magnitude<br />
of increase was however, more in case of C. set igerus.<br />
2.3 <strong>Grassl<strong>and</strong></strong> <strong>and</strong> fodder atlas of Bundelkhgnd.<br />
(R. K. Tyagi)<br />
The various aspects of irrigatio 1 for the year 1981-82 wrse studied in order to update the<br />
information generated over a period of 12 years in irrigation resources which iskey factor in<br />
l<strong>and</strong> utilization particularly in Bundelkh<strong>and</strong> ragion where scarcity of water has always posed<br />
a serious problem.<br />
The study revealed that the net irrigated area ranged between 80 thous<strong>and</strong> to 1 lakh<br />
hectares in the northern districts. The districts of Tikamgarh <strong>and</strong> Chhatarpur have also<br />
recorded more than 50 thous<strong>and</strong> hectares of irrigated area. The net irrigated area is very<br />
insignificant (less than 25 thous<strong>and</strong> hectares) in the districts of Panna, Damon <strong>and</strong> 'Sagar<br />
( 107 !
which are located in the extreme south of Bunde1kh<strong>and</strong> <strong>and</strong> form -the part of Vindhyan plateau<br />
<strong>and</strong> hills.<br />
The percentage of net irrigated area to the net sown area ranges from a minimum of<br />
4.1% in Damoh to a maximum of 40.6% in Tikamgarh district. The highest percentage<br />
(above 30%) is found only in Tikamgarh district. The next range of 20-30% is recorded in<br />
Jhansi, Lalitpur, Chhatarpur <strong>and</strong> Jalaun districts. The medium range (10-20%) is found in<br />
the districts of B<strong>and</strong>a, Hamirpur <strong>and</strong> Datia, The lowest proportion (below 10%) is observed<br />
in Panna, Damoh <strong>and</strong> Sagar districts.<br />
The area irrigated more than once is recorded very insignificant throughout the region as<br />
it is less than 2 thous<strong>and</strong> hectares in Jalaun, Hami rpur, Jhansi, Chhatarpur, Panna <strong>and</strong> Damoh<br />
Only B<strong>and</strong>a has noticeable area (26483 ha) irrigated more than once.<br />
The larger area in the region is irrigated by canals particularly in the districts of B<strong>and</strong>a,<br />
Jalaun, Hamirpar <strong>and</strong> Jhansi where the percentage of canal irrigated area varies from 62.7%<br />
in Jhansi 10 94.0% in B<strong>and</strong>a district.<br />
Well irrigation is dominating (765%) in the districts of Chhatarpur, Tikamgarh, Datia,<br />
<strong>and</strong> Lalitpur. Well irrigation covers 35.7% area in Jhansi <strong>and</strong> while it IS merely 4.2% in<br />
Sagar district. Tube-well irrigation is very insignificant in almost all the districts except<br />
Chhatarpur (3%) <strong>and</strong> Lalitpur (2%).<br />
Irrigation by tanks is also neglible except in Tikamgarh, Chhatarpur, Lalitpur <strong>and</strong><br />
Panna districts where it exceeds 1%. The irrigation by other sources is noticeable in Damoh<br />
(32.8%), Sagar (31%) Panna <strong>and</strong> Lalitpur (8.9%) districts.<br />
It has also been observed that the total irrigated area has decreased in the districts of<br />
Harnirpur, Jalaun <strong>and</strong> Damoh by 9.61, 24.20 <strong>and</strong> 19.61% respectively over the base year of.<br />
1976-77. Other distncts however, have shown an increase in irrigated area during the<br />
corresponding period..<br />
The study on irrigation by different sources reveals the fact that the area irrigation by<br />
canal has decreased in Jhansi, Lalitpur, Hamirpur, Jalaun, Damoh <strong>and</strong> Chhatarpur during the<br />
period from 1976-77 to 1981-82. This is due to Silting of the reserviors resulting in the<br />
decreae in storage capacity. The area irrigated by tank has also decreased inSagar, Lalitpur<br />
<strong>and</strong> B<strong>and</strong>a districts This is being replaced by the tube-well irrigation which is becoming<br />
popular in almost all the districts. The districts of Hamirpur, Jalaun <strong>and</strong> B<strong>and</strong>a have regis-<br />
. tered an increscd of 725.70. 606.28 <strong>and</strong> 242.40% respectively in the area irrigated by tube-<br />
( 108 )
wells. DistrictJhansi recorded 682 hectares of area irrigated by tube-well for the first time<br />
in 1981-82.<br />
2.4 Glimpses of grazing in India.<br />
(R. K. Tyagi)<br />
Characteristic features of grassl<strong>and</strong>jpasturel<strong>and</strong>s of northern<br />
areas of J & K, H. P. <strong>and</strong> Uttarakh<strong>and</strong> (U. P.).<br />
India which included the<br />
The study covered various aspects of grazing l<strong>and</strong>s i. e. their distribution <strong>and</strong> site<br />
characteristics, period of forage avai lability, floristic composition <strong>and</strong> carrying capacity. The<br />
salient observations area as under :<br />
Jammu & Kashmir<br />
I. In valley, the grass is found on glades from 700 to 3352.8 m contour where melting snow<br />
provides water.<br />
2. There are small patches of grazing l<strong>and</strong>s in the outer hili region (the Siwalika).<br />
3. Nutritive grasses <strong>and</strong> sub-alpine herbs are grown on the lower slopes of the Panjab<br />
range of mountains known as alpine meadows.<br />
Himachal Pradesh<br />
).!<br />
1. Southern slopes of Daula Dhar range are utilized as the main grazing area during<br />
autumn <strong>and</strong> summer,<br />
2. Bara Banghal, Chamba <strong>and</strong> Lahaul which area located behind the main range (Dhaula<br />
Dhar) area used as a pasture l<strong>and</strong> during season.<br />
3. loW .llills area used for grazing during winter.<br />
Uttarakh<strong>and</strong><br />
1. The region acro ss the Southern slopes of greater Himalayas up to Tibet is known as<br />
( 109 )
Bhot, Here the Bhotias graze the sheep <strong>and</strong> goats on .1imalyan pastures called '<br />
Bugyals.<br />
2. Towards south of Bhot region upto Bhabar the region is known as Pahar. The inhabitants<br />
of this region graze their animals in the Pyar/Bugyals during summer <strong>and</strong> In<br />
the neigbouring valleys <strong>and</strong> ranges during winter.<br />
3. In the south, the Bhabar is characterised by forest grazing l<strong>and</strong>s where »the pastoral<br />
communities from north stay throughout winter season. (<br />
SS-3<br />
SOIL STUDIE~ ON AGROFORESTRY AND SILVIPASTORAL SYSTEM OF<br />
FORAGE PR0I;>UCTION.<br />
3.1 Soil fertility <strong>and</strong> plant nutrition studies.<br />
(C. R. Hazra <strong>and</strong> S. B. Tripathi)<br />
The field- studies were carried out to know the effect of N & P fertilization on forage<br />
production <strong>and</strong> soil properties under continued tree cropping system taking open canopy<br />
(winter tree) as control. The different experiments under the project are detailed below.<br />
I. P effect <strong>and</strong> forage yield with <strong>and</strong> without tree:<br />
Field experiment was laid out in two separate sets each under Albizia lebbek <strong>and</strong> in<br />
open without any tree component. Melilotus (senji) was grown in both the cases with four<br />
levels of P (0, 30, 60 <strong>and</strong> 90 kg P20s/ha). Plant samples were collected at harvest (50%<br />
flowering) for P uptake <strong>and</strong> dry fodder yield. So.H samples were also taken for determining<br />
SOlI fertility status. Photosynthetically active radiation (PAR) was measured by quantum<br />
radiometer at 13 hour on bright sunny day, one or two days prior to harvest. The results<br />
are as follows :-<br />
Forage yield.<br />
The significant response of P wag noted upto 90 kg P:!Os!h
plantation. P eresponse was noted to be 101 <strong>and</strong> 120 kg for green <strong>and</strong> 6 <strong>and</strong> 8 kg for dry<br />
fodder under open <strong>and</strong> 37 <strong>and</strong> 52 kg for green & 6 & 6 kg for dry fodder under tree canopy<br />
at 30 & 70 kg P20s/ha respectively. The forage yield of Melilotus under tree was significantly<br />
lower than open system.<br />
Nutrient uptake.<br />
The uptake of P progressively increased wJth successive increase in the level of P <strong>and</strong><br />
the highest P uptake was recorded with 90 kg P:!O;;/ha, The P uptake varied between 1.2<br />
to 46 kg P 20s/hn under tree against 2.8 to 6.1 kg P20~/ha i~' open with differential 'p levels.<br />
At 90 kg P 205/ha. the relative uptake of P by'Melilotus under tree was 75 per cent against<br />
only 43 percent without P application under siJilar canopy situation,<br />
.<br />
surface layers.<br />
The results are as follows.<br />
Physico-chemical properties of soil.<br />
Application of P under tree <strong>and</strong> open canopy increased organic carbon, available N,<br />
available P <strong>and</strong> decreased bulk density. The agroforestry system as a whole had an edge<br />
over non-tree system by improved soil productivity through decreased bulk density, increased<br />
porosity <strong>and</strong> water retention capacity. Moreover there was a decrease in PH <strong>and</strong> Eo <strong>and</strong><br />
an increase in organic carbon, avaiiable N <strong>and</strong> under Luecaena- followed by Acacia <strong>and</strong><br />
Hardwickia.<br />
Micro-meteorologica1Y:lfameter.><br />
(i) PAR: Amongst different tree covers, Leucaena allowed the least amount of light<br />
infiltration which was around 48~-;; of full light availability under ~pen canopy. This was<br />
closely followed by Acacia (65%). Under Hardwickia, the light availability on berseem<br />
canopv was 80% of the ope.l canopy.<br />
(ii) Air canopy <strong>and</strong> soil temperature: The lowest ambient temperature for air (32.80C),<br />
canopy (27.80C) <strong>and</strong> soil (24,60C) was observed under Leucqena plots. The corresponding<br />
temperatures under Acacia were 33.40C,29.0oC<strong>and</strong> 24.6oC.Hardwickia maintained higher temperature<br />
as compared to other tree species(air 34.8, canopy 30.7 <strong>and</strong> soil 26.60C) .However, the<br />
temperature under different tree covers were always lower than open canopy. The air canopy<br />
temperature difference was least under open system t3.40C). Thus, it is seen that the temperature<br />
is closely linked with rodiation availability.<br />
.(iii) Relative humidity (RH) : The tree covers maintained higher humidity <strong>and</strong> highest RH<br />
was observed with Leucaena (80%) followed by Acacia (75%) <strong>and</strong> Hurdwickia (55%). The<br />
open plots maintained low RH (50%).<br />
(iv) Relative yield: Forage yield of berseem was found to be closely related to radiation<br />
availability. The plots under Leucaena had the lowest yield of about 36% to that of open<br />
onas. The highest relative yield was found to be 78% under Hardwickia.<br />
Forage yield <strong>and</strong> nutrient uptake<br />
Phosphate fertilization increased forage yield significantly over control treatment<br />
under all tree canopies. Application of 43 kg P jha increased forage yield significantly over<br />
21,5 kg P/ha. The highest yield was, however, obtained with 64.5 kg Plha, under all<br />
situations. The response to appliep P was maximum under Hardwickia <strong>and</strong> minimum under<br />
Leucaena, Under comparable condition of phosphate application, the forage yield of bel seem<br />
( 112 )
under the Boor sf Hardwickia was found to be the least affected to light curtailment. The<br />
uptake of P by the berseem under open a-ad tree canopy was observed to follow the trend of<br />
forage yields.<br />
The study thus indicated that Hardwickia exhibited minimum ill effects of shade on<br />
bcrseem in addi tion to known gains of top feed, fuel <strong>and</strong> timber from trees.<br />
3. Nitrogen influence on forage production of safflower <strong>and</strong> Chinese cabbage <strong>and</strong> soil<br />
fertility with <strong>and</strong> without tree association.<br />
Field experiment was conducted with four levels of N (0,40 <strong>and</strong> 60 kgjha) in two<br />
separate sets on safflower (7-13-3) <strong>and</strong> Chinese cabbage, The CrOS were planted under<br />
Albizia lebbak <strong>and</strong> also in adjacent open l<strong>and</strong>. The soil was s<strong>and</strong>y loam in texture (alfisols)<br />
having pH 7.3 Ec 0.32 mhos/em, organic carbon 0.51%, available N 190 kgjha <strong>and</strong> available<br />
P 20S 20 kgjha, The radiation was measfured by Quantum Radiometer at 13 hour. The recults<br />
are as fo llows ;<br />
Forage yield<br />
The forage yields of safflower <strong>and</strong> Chinese cabbage increased significantly with an inerease<br />
in the level of nitrogen upto 60 kg N jha both under open <strong>and</strong> tree canopy. Amongst the crops,<br />
Chinese cabbage showed higher yield potential than safflower under both canopy situations.<br />
PAR <strong>and</strong> Relative yield<br />
Application of N had least influence in altering the ill effects, if any, due to radiation<br />
curtailment. The rela~ive yield of safflower varied between 68-73 per cent for green forage<strong>and</strong><br />
be.ween 70-81 per cent for dry matter. The relative yield levels varied between 67-76 <strong>and</strong><br />
68-75 per cent for green <strong>and</strong> dry matter, respctively, in case of Chinese cabbage. The relative<br />
PAR availability to safflower <strong>and</strong> Chinese cabbage was found to be 68 <strong>and</strong> 55 per cent<br />
respectively. On an average, tile relative yields of 70-85 for safflower <strong>and</strong> 70-71 % for Chinese<br />
cabbage were found under tree canopy assuming 100 per cent yield under open environment.<br />
Nutrient uptake <strong>and</strong> soil fertility<br />
Nitrogen uptake by safflower <strong>and</strong> Chinese cabbage progressively increased with<br />
increasi 19 doses of nitrogen both under tree <strong>and</strong> open canody sestems, The highest N uptake<br />
in safflower was 40.2 kg N jha under open <strong>and</strong> 27.4 kgjha under tree canopy. The corresponding<br />
values of N uptake for Chinese cabbage were 61.9 <strong>and</strong> 40.3 kg K jha. The application of<br />
113 )
N improved the organic carbon, available N <strong>and</strong> available P status of soil at harvest. The<br />
highest soil fertility status was found under tree canopy in both the crops. Safflower with tree<br />
association improved the organic carbon by 11%; available Nitrogen by4% <strong>and</strong> available P by<br />
25% over non tree association. Such increases with Chinese cabbage were 13, 2 <strong>and</strong> 9~~,<br />
respectively.<br />
4. Response of oat <strong>and</strong> barley to N fertilization.<br />
Forage yield<br />
Nitrogen application upto 120 kg{ha to oat <strong>and</strong> barley increased both green <strong>and</strong> dry<br />
fodder yields. However, significant response was observed at SO kg{ha in oat <strong>and</strong> at 40 kg/ha<br />
in barley over contrcl treatment. Nitrogen exhibited response both under open <strong>and</strong> tree<br />
canopy with both the crops.<br />
Overall effect<br />
Open <strong>and</strong> tree canopy systems differed significantly from each other in forage yield of<br />
oat <strong>and</strong> barley at all levels of nitrogen application. The crop under tree yielded less than that<br />
under open plots. The dry forage yield of oat under tree with 80 kg N {h(was almost equal<br />
to that with 40 kg N{ha under open. Similarly, the yield of barley with 120 Kg Njha under<br />
tree equalled the yield under open canopy with 80 kg Nfha.<br />
Radiation <strong>and</strong> relative yield<br />
Under tree canopy, oat <strong>and</strong> barley received 61% <strong>and</strong> 67~~ radiation respectively of the<br />
available without tree component (100%). Oat under tree received about 0.51 x3000 micro<br />
einsteen/cms seC under open. The corresponding values for barley were 0.38 X 3000 <strong>and</strong><br />
0.54x4000 micro einstein/em- sec under tree <strong>and</strong> open canopy, respectively. The relative<br />
efficacy of barley under tree was higher than oat although the absolute yield of barley was<br />
only 50% to that of oat.<br />
Nitrogen uptake<br />
Nitrogen uptake by both the crops progressively increased with an increase in the<br />
levels of nitrogen. Under no nitrogen treatment, oat removed 131 <strong>and</strong> 79 kg N/ha under tree<br />
<strong>and</strong> epen canopy respectively, whereas the corresponding values for barley were only 58 <strong>and</strong><br />
29 kg N Iha. Oat fartilized with 120 kg N Iha removed 369 <strong>and</strong> 230 kg N Iha under open <strong>and</strong><br />
tree canopy respectively. Under similar conditions, however, barley removed only 184 <strong>and</strong> 106<br />
kg N{ha.<br />
114 )
Soil fertility<br />
A vailable nitrogen, phosphorus <strong>and</strong> organic carbon status of soil after crop harvest<br />
improved with nitrogen fertili zation. Tree association also had an edge over non-tree<br />
association in improving soil fertility.<br />
3.2 Mlc) ometeorolcglcal studies under agroforestry productlon system.<br />
(C.<br />
R. I-I,ma)<br />
I. Forage yielJ of grasses under different tree canopies in relation to radiation <strong>and</strong><br />
me.corological parameters.<br />
The experiment was oarred out in red s<strong>and</strong>y loam soil with a view to find out suitability<br />
of some important tree species for silvipastoral production system. The tree species<br />
included Albizia lebbek, A. procera <strong>and</strong> Acacia nilotic a planted at 5 m X 5 m distance in the<br />
year 1977. Another tree species, Leucaena leucocephala planted in 1979 at 4 m x 2 m distance<br />
was suitably lopped to give desired light intensity. The grasses were harvested in the month<br />
of October from 2m 2 area from middle of two rows or trees. Similarly, the grasses were also<br />
harvested from adjecent open l<strong>and</strong> without any tree compoent. The micrometeorological<br />
parameters were recorded one day prior to harvest at 13.00 hour. The photosynthetically<br />
active radiation (PAR) was measurec by quantum radiometer, relative humidity by R. H.<br />
gauge <strong>and</strong> temperature by tele iherrnometer. The relative yield is the yield under tree expressed<br />
as per cent yield of open. The relative PAR values were also calculated in similar way.<br />
Though the highest forage yield was found' with Albizia lebbek followed by open<br />
canopy (withont tree) but the differences were statistically non-significant. The forage yield<br />
under Leucaena leucocephala was, however, significantly higher than Acacia nilotica <strong>and</strong><br />
Albizia procera The PAR varied from 67% under Ai tebbek to 53% under L' leucocephala.<br />
The PAR was 61~'-;; <strong>and</strong> 57% under A. nilotica. This indicated that the forage yields were not<br />
entirely dependent on solar radiation but more so on tree-grass intertion. The higher forage<br />
yields under tree were generally associated with higher air-canopy temperature difference.<br />
2. Forage yield of grasses in relation to radiation availability.<br />
The experiment aimed at studying the influence of light quanta available <strong>and</strong> the above<br />
ground biomass production in grasses. Cenchrus ciliaris was grown under the trees of Poincine<br />
regia <strong>and</strong> Hardwickia binata in red soil. The radiation availability to underneath gasses were<br />
controlled by appropriate lopping of trees.<br />
( 115 )
The dry matter yield of grass decreased with the decrease in incident quanta on the<br />
canopy surface. The forage yield was 93% at 83% PAR <strong>and</strong> 50% at 42% PAR. Thereafter,<br />
the decrease in yield was very sharp <strong>and</strong> forage yield remained only 6% at 8% PAR. The<br />
relative humidity increased with curtailment in radiation <strong>and</strong> reverse was the trend with respect<br />
to ambient air <strong>and</strong> leaf temperature, The air-canopy temperature differences narrowed<br />
down with the decrease in PAR.<br />
3. Herbage yield of grasses in relation to radiation under silvipastoral system.<br />
A field study was undertaken with eight tree species viz., Albizia lcbbek, Albizia procera,<br />
Acacia tortilis, Acacia nilot i ca, Leucaena Leucocephala, Dichrostachys nut ans, Hardwickia<br />
binata <strong>and</strong> Eucalyptus to fiind out the influence of tree canopy on radiation infiltration to the<br />
grasses grown in association with the trees. An adjacent open plot was taken as control free<br />
from component, The study indicated that the PAR values under all the tree species were<br />
significantly lower than the open <strong>and</strong> varied between 58-83%. The PA R values were in the<br />
order of open> H. binata > D. nutans > Eucalyptus> A. tortilis> A. lebbek ><br />
A. procera> L. l eucocephala > A. nilotica. The yields under tress were significantly different<br />
from yields under open. The order of forage yield was open > A. lebbek;» D. nut ans<br />
> H. binatari: Li leucocephala;» A. nilotica> A. procera > Eucalyptus,<br />
4. Seasonal responses of different fodder crops in relation to tree association.<br />
In order to find out the suitability of fodder crops in different growing seasons under<br />
agroforestry system, their productivity was evaluated under shade conditions. The crops<br />
included were cowpea, guar, moth, field bean, sunhemp, jowar, bajra, teosinte <strong>and</strong> maize in<br />
summer <strong>and</strong> rainy season, <strong>and</strong> Chinese cabbage, safflower barley, oat, senji , lacarne, berseern<br />
<strong>and</strong> pea during winter season.<br />
The results indicated that the yields of most of the fodder crops under tree tended to<br />
increase or remained equal to that of open canopy during summer season. The situation was<br />
entirelv different during rainy season, in the sense that all the fodder crops under tree produced<br />
significantly lower yield than open canopy situation. The yields under tree canopy<br />
during rainy Season varied between 52-76% with lowest relative yield of sunhemp <strong>and</strong> highest<br />
of bajra. The crops under tree received 68% <strong>and</strong> 52% of radiation during summer <strong>and</strong> rainy<br />
season, respectively. During winter, most of the cereal <strong>and</strong> oilseded forage under tree yielded<br />
aboue 87-98% of open system. Moreover, the leguminous fodders viz" berseern, lucerne<br />
<strong>and</strong> pea yielded only 45, 55 <strong>and</strong> 63% respectively under tree. The relative yield of sen]i was<br />
116
however 83%, On an average, all the fe dder crop's under tree yielded significantly lower<br />
than open,<br />
Amongst the different napier bajra (NB) hybrids tried under tree <strong>and</strong> open, tl.e highest<br />
forage yield was recorded with <strong>IGFRI</strong>-6 followed by NB-2l <strong>and</strong> PBN-21. The yields<br />
obtained from <strong>IGFRI</strong>-3 <strong>and</strong> Setaria (N<strong>and</strong>i) were low be th in summer <strong>and</strong> rainy seasons.<br />
The relative yields under tree during summer 'varied between [\4-120% <strong>and</strong> during rainy<br />
season it ranged between 65-74~~. Setaria gave 20% more yield under tree as compared to<br />
open canopy. The radi:.tion av.ulability on crop callopy under tree was 76% of open during<br />
summer <strong>and</strong> 57~~ during rainy months. During summer, under tree, <strong>IGFRI</strong>-6 had the<br />
highest air-canopy temperature difference (ACTD) of 440C fo llowed by IGFRl-3 (4.20C)<br />
whereas NB-2l <strong>and</strong> PNB-7l had 2ADC nnd 2.8oC, respectively. Similar was the trend under<br />
open canopy. The magnitude of difference of air-canopy temperature during rainy season<br />
was leas than summer period. The low canopy temperature of <strong>IGFRI</strong>-6 <strong>and</strong> <strong>IGFRI</strong>-3 is<br />
indicative of low photorespiratory proceS5 <strong>and</strong> possible higher net assimilation.<br />
3.3 Studies on biological N 2 fixation under agroforestry system of forage production.<br />
(M. R. Pahwa)<br />
A pot trial conducted in order to select a superior combination of Subabul host/<br />
Rhizobium strain (s) for better herbage yield. The treatments consisted of three strains each<br />
of host EL selvador, K-8 <strong>and</strong> K-28 <strong>and</strong> Rhizobium (TAL-582, TAL-1158 <strong>and</strong> LL-28-2<br />
applied individually <strong>and</strong> in combination). The experiment was terminated after 80 days.<br />
Variety K-8 produced highest green <strong>and</strong> dry matter yields when inoculated with combined<br />
strains of Rhizobium. However, there was no significant effect of these strains on nodulation<br />
Superior performance in terms of herbage yield was also recorded with combination of<br />
K-28/TAL-582.<br />
Performance of different Acacia species to inoculation with Rhizobium strains<br />
Three Acacia spp. (A. tortilis, A. arabica <strong>and</strong> A. planitormisv were tested against<br />
three Rhizobium strains (R-9, R-3 <strong>and</strong> cowpea Rhizobium) singly <strong>and</strong> in combination, Nodulation<br />
growth <strong>and</strong> herbage yield were recorded after 90 days. Surface sterilized seeds of<br />
A. planiformis when inoculated with combined Rhizobium (R-9+R-3) produced significant<br />
effect on plant height (56.9 em) <strong>and</strong> herbage yield (14.0 g/plant). Nodulation was also<br />
stimulated with combination as compared to their independent application. However, application<br />
of Rhizobium to A. torti/is seeds gave superior performance in respect of herbage<br />
accumulation (6.0 g/plant).<br />
( 117 )
SS-4 STUDIES ON PROBtEM<br />
PRODUCTION.<br />
SOILS IN RELATION TO FORAGE<br />
4.1 Soil fertility <strong>and</strong> plant nutrition studlec in acid soils.<br />
(S. B.Tripathi <strong>and</strong> N. D. Mannikar)<br />
'1. Efficiency of N sources at different levels of N in acid soils.<br />
Pot culture studies revealed that the maximum green (369.8 g/pot) <strong>and</strong> dry (89.3<br />
g/pot) matter yields were recorded at 120 kg N Iha. Amongst N sources, the effect of calcium<br />
ammonium nitrate (CAN) was found significantly superior to urea ond FYM. Palampur<br />
soil produced significantly higher green <strong>and</strong> dry fodder yields as compared to Jorhat<br />
<strong>and</strong> Mannavanore soils. The interactions, soils X sources Xlevels were not significant.<br />
Increasing doses of N increased N content in oat <strong>and</strong> maximum concentration was<br />
found at 120 kg N/ha. As regards sources, CAN was found to be superior to others. The<br />
concentration of N in plants was maximum in Palampur soil. Jorhat soil was found to be<br />
intermediate. Least N content in plant was found in Mannavaoore soil.<br />
The data on soil analysis after harvesting of oat crop indicated that the avai lability of<br />
N increased with increasing levels of N. The availablility of N was maximum in Mannavauore<br />
soil with FYM treatment.<br />
2. Response of Mo with <strong>and</strong> without P application on forage production in acid soil.<br />
The green <strong>and</strong> dry matter yields of berseem increasedsignificantly with increasing level<br />
of Mo <strong>and</strong> P. The interaction effect between P was also found significant. The highest<br />
green (340.1 g/pot) <strong>and</strong> dry fodder (37.2 g/pot) yields were recorded with 80 kg P 205 <strong>and</strong><br />
1.5 kg MoOa/ha.<br />
Mo <strong>and</strong> P content in plant increased with increasing levels of Mo <strong>and</strong> P.. However,<br />
P <strong>and</strong> Mo contents increased significantly with 1.0 kg MoOa/ba over control treatment. The<br />
increase in Mo from 1.0 to 1.5 kg Mo 0a/h1 did not alter the Mo content but caused significant<br />
variation in P concentration. The application of P significantly increased Mo <strong>and</strong> P<br />
contents over no P treatment. The interaction effect between P <strong>and</strong> Mo showed that significant<br />
response in terms of Mo content was noted at 1.0 kg Mo 0a/ha with P application over<br />
].0 kg Mo Oa/ha alone.' The change in P content was found to be significant with increasing<br />
levels of Mo combined with P as compared to application of Mo wtthout P. The highest Mo<br />
<strong>and</strong> P contents 16.2 ppm <strong>and</strong> 0.52 percent, respectively were found with combined application<br />
of 1.5 kg Mo 0a <strong>and</strong> 80.kg P 20,j/l1a.<br />
118 )
DIVISION OF GRASSLAND MANAGEMENT<br />
GM-l ESTABLISHMENT AND MANAGEMENT OF RESEEDED PASTURES FOR<br />
THEIR SUSTAINED PRODUCTIVITY ON MARGINAL AND SUBMARGINAL<br />
LANDS.<br />
1.2 Studies on the establishment <strong>and</strong> wanagemeut of Stylosanthes Cenrhrus <strong>and</strong><br />
Eichanthium based pastures for their sustained productivity.<br />
(P. Rai) ,<br />
1. Effect of time of sowing <strong>and</strong> with <strong>and</strong> without pelleting on the establishment of grasses<br />
<strong>and</strong> legumes.<br />
Studies on the establishment of Cenchrus ciliaris, Dichanthium annulatum, Stylosanthes<br />
hamata <strong>and</strong> S. scabra separately were continued for the second year with three times of sowing<br />
'(mid1le of May, June <strong>and</strong> July) <strong>and</strong> with <strong>and</strong> without pelleting.<br />
The plant population differed significantly with different times of sowing in all the<br />
species except S. scabra. The maximum plant population of 21875, 36875, 66875 <strong>and</strong> 82500<br />
plantsjha was recorded in S. hamata, S. scabra, D. anulatum <strong>and</strong> C. ciliaris,,respecti,!ely<br />
when sowing wasdorie during middle of July followed by middle of June in both che species<br />
of grasses <strong>and</strong> legumes. Mid July sowrng gave significantly higher plant pepulation compared<br />
to middle of May sowing in.all the species.<br />
\<br />
Only C. ciliaris gave significant differences in plant pop~latio~.drte to pelleting<br />
However, the maximum plant population of 15833, 35000, 58750 <strong>and</strong> 60000 plants/ha was<br />
obtained in S, hamata, S. scabra, D. annulatum <strong>and</strong> C. ciliaris, respectively when pelleting<br />
was done with clay soil. .."<br />
2. Effect of seed rates <strong>and</strong> method of sowing on the establishment of Dichanthum<br />
annulat um <strong>and</strong> Cenchrus ciliaris.<br />
Studies were repeated during the year with 5 seed rates<br />
(2, 4, 6,' 8 <strong>and</strong> IO.kg/ha) anti<br />
........."..~ ".<br />
( 119 )
2 methods of sowing (broadcast <strong>and</strong> line sowing) on the estabishment of D. annulatum cv.<br />
S-32 <strong>and</strong> C. ciliaris cv. S-3108 separately.<br />
Significant differences in plant population due to different seed rates in both the<br />
grasses were observed. The maximum plant population of 1,06,667:.lnd 1,65,000 plants/ha<br />
was recorded C. ciliaris <strong>and</strong> D. annulatum, respectively when sowing was done at the rate of<br />
10 kg/ha. However, plant population recorded with 4 to 10 kg/ha gave statistically nonsignificaru<br />
results in both the grass species. The method of sowing did not show significant<br />
effect on plant population. However, the maximum plant populations of 82,000 <strong>and</strong> 1,31,333<br />
plams/ha were recorded with C. ciliaris <strong>and</strong> D. annulatum, respectively whensowing was<br />
done by broadcastir g compared to line sowing in both the grasses.<br />
There were no significant differences in plant height, number of tillers/plant, tussock<br />
diameter <strong>and</strong> dry matter yield due to different seed rateS <strong>and</strong> methods of sowing in both the<br />
grass species except seed rates for dry matter production. The maximum dry matter yield of<br />
22.5 <strong>and</strong> 15.8 qjha was obtained in C. ciliaris <strong>and</strong> D. annulatum respectively when sowing<br />
was done at the rate of 10 kg seed/ha. However, the dry matter yields obtained with 4-10 kg<br />
seed/ha in case of C. ciliaris <strong>and</strong> 6 to 10 kg/ha in case of D. annulatum were not found to<br />
be statistically significant. In both the grasses, the dry matter yield was higher in broadcast<br />
method of sowing as compared to line sowing though, it was statistically non-significant.<br />
3. Effect of planting material <strong>and</strong> frequency of weeding on establishment <strong>and</strong> production<br />
in Dichant hium annulatum.<br />
Studies were continued for the second year with three planting materials (seeds,<br />
seedlings <strong>and</strong> rooted slips) <strong>and</strong> three frequencies of weeding (0, I <strong>and</strong> 2 wee dings during rainy<br />
season) to know the effect of planting material On establishment <strong>and</strong> production in<br />
D. annulatum cv. S-32.<br />
Establishment studies revealed that plant population differed significantly due to<br />
different planting materials <strong>and</strong> frequencies of weeding. Planting by seedlings gave significantly<br />
'higher establishment (l00 per cent)' than rooted slips (87 per cent) <strong>and</strong> seeds (76.6 per cent).<br />
There was no beneficial effect of two weedings compared to one weeding on the establishment.<br />
'Data on plant he'gh., number of tillers/plant <strong>and</strong> dry matter yield showed significant<br />
differences due to different planting materials <strong>and</strong> frequencies weeding. The maximum plant<br />
height (114.8 em), number of tillers/plant (40.0) <strong>and</strong> dry ,matter yield (21.8 qj ha) were recorded<br />
when pl inting was done by seedling followed by rooted slips. Dry matter yield, plant<br />
height <strong>and</strong> number of tillers/plant recorded with planting by. seeds Were significantly lower<br />
than planting by s.edlings <strong>and</strong> rooted slips.<br />
120 )
As regards to frequency o-f weeding, it was observed that there was no difference in<br />
dry matter yield, plant height <strong>and</strong> tiller number due to one or two weedings. Weeding once<br />
or twice during rainy season gave significantly higher dry matter yield as well as plant height<br />
<strong>and</strong> tiller production compared to without weeding.<br />
4. Effect of different levels of phosphorus on the prod.ictivity of Stylosantltes guianensis<br />
'a 'ieues.<br />
During the second year of an experiment with tWJ varieties of S. guianensis (Endea-,<br />
vour <strong>and</strong> Schofield) <strong>and</strong> three levels of phosphorus (0,40 <strong>and</strong> '30 kg P20 5 / ha variety Schofield<br />
produced higher-green (164.6 q/ha) <strong>and</strong> dry (63.0 q/ha) forage compared to variety Endeavour<br />
(156.3 q/ha green <strong>and</strong> 58.3 q/ha) dry though, the di Tercnces were statistically nonsignificant.<br />
A pplication of different levels ofphosphorus showed significant differences in<br />
green <strong>and</strong> dry forage yield. The maximum green (171.9 q/ha) <strong>and</strong> dry (65.3 q/ha) forage<br />
yield was obtained with application of 80 kg P205/ha, followed by 40kg P 205/ha(green 165.9;<br />
q/ha) <strong>and</strong> dry 62.8 q/ha). The differences in green <strong>and</strong> dry forage yield obtained with 40<br />
<strong>and</strong> 80 P205/ha were statistically non-significant. Further, the plant vigour showed no significant<br />
differences due to different levels of phosphate application or different varieties. However,<br />
variety Schofield 1279 em) attained the maximum length.<br />
The crude protein content exhibited no variation in both the varieties (10.99 percent<br />
respec.ively in endevour <strong>and</strong> Schofield). Application of phosphorus increased the C. P.<br />
content in both the varieties, However, the was no beneficial effect of incresing the levels<br />
of phosphorus from 40 to 80 kg P 2 0 5 / ha in both the varieties, The maximum C. P. content<br />
of 11.33 percent was recorded with 40 kg P 205/ha followed by 80 kg P 20.>/ha (60.94%).<br />
The crude protein content exhibited no variation in both the varieties (10,99 percent<br />
respectively in endevour <strong>and</strong> Schofield). A pplication of phosphorus increased the C. P.<br />
content in both the varieties. However, there was no beneficial effect of increasing the level<br />
of phosphorus from 40 to 80 kg Pz0 5 /ha in both the varieties. The' maximum C. P. content<br />
of 1l.33 percent was recorded with 40 kg Pz0 5 / ha followed by 80 kg Pz0 5 /ba (10,94 percent)<br />
5. Effect of different levels of nitrogen on the productivity of pure <strong>and</strong> mixed.st<strong>and</strong> of<br />
Cenchrus hybrid.<br />
The experiment was continued for the second year of Cenchrus hybrid with three<br />
levels of nitrogen (0, 30 <strong>and</strong> 60 kg N /ha) on the productivity of pure <strong>and</strong> mixed st<strong>and</strong> with<br />
Stylosanthes hamata. Five cuttings were taken on 23.2.84, 21.7.84, 16.8.84, 17.9:84 <strong>and</strong><br />
\ ( .. 121
18.10.84 from the grass while only one cutting was taken on 23.10.84 from S. hamata since<br />
S. hamata was sown during July, <strong>1984</strong> due to high 'mortality of S. guianensis durmg<br />
1983.<br />
The application of nitrogen significantly incressed the forage yield of pure st<strong>and</strong> while<br />
mixed st<strong>and</strong>s it was not significant. The maximum dry matter yield of 153.9 q/ha was reCorded<br />
with 60 kg N/ha followed 'by 30 kg N/ha (139.3 q/ha) when . g~own in pure st<strong>and</strong>. The<br />
maximum dry matter yield of 104.1 q/ha (9583 q/ha from gr.lss+8.3 qjha from S. hamata)<br />
was observed in the mixture of Cench~us hybrid+S. hamata (control).<br />
Data on plant height, tussock di-rneter <strong>and</strong> number of tilbrsjp\anl showed no significant<br />
differences, However, the maximum plant height (156.5 cmj W.lS observed in-pure<br />
st<strong>and</strong> with application of 60 kg N /ha while the maximum tussock diarneter . (21.0 ern) <strong>and</strong><br />
number ef tille rs/phnt(4.7) were recorded in the mixed st<strong>and</strong> with 60 kg Njha,<br />
The C. P. content in grass increased with application of nitrogen in pure as well as<br />
mixed st<strong>and</strong> with S. hamata. In all She mixtures the C. P. content was higher compared to<br />
pure st<strong>and</strong> except at 60 kg Njha.<br />
The application of 60 kg N Iha in pure st<strong>and</strong> gave maximum C. P. content (11.11<br />
percent) <strong>and</strong> the minimum (10.15 percent) was recorded in control (grass alone), Further<br />
it was observed that the C. P. content in S. hamata also increased with the increasing levels<br />
of nitrogen.<br />
6: Ccrnpara ti\ e studies on the effect of fertilizers <strong>and</strong> introduction of legumes on the<br />
productivity of established pastures of Dichanthium <strong>and</strong> Cenchrus.<br />
Comparative studies were continued for the second year to know the effect of fertilizers<br />
(0, 60 kg Njha, 30 kg P205/ha <strong>and</strong> 60 kg N+30 kg P20.;/ha) <strong>and</strong> introduction of four<br />
perennial legumes (M,acroptilium at ropurpureum, Clitoria ternat ea, Stylosanthes hamata<strong>and</strong><br />
S. scabra) with <strong>and</strong> without application of 30 kg P 205/ha on the productivity of established<br />
pastures of D. annulatum cv. S-32 <strong>and</strong> C. ciliaris cv, S-3108. Three cuttings were taken on<br />
23.7.84,3.984 <strong>and</strong> 16.10.84 in case of C. ciliaris while five cuttings were taken in D. annula<br />
tum on 23.2.84,16.4.84, 13.8.84 18.9.84;<strong>and</strong>,~6.10·84. Total in all, the three cuttings in<br />
C encht us <strong>and</strong> five cuttings in Dichanthium were used for statistical analysis,<br />
The forage yield (OM) differed significantly with various treatments in both the grass<br />
species. In case of C. ciliaris the maximum dry matter yield of 80.5 qjha (52.4 q/ha from<br />
grass+28.1 q/ha legume) was obtained with introduction of S. hamata+application of 30 kg<br />
122 )
P:J0s/ha (61.1 q/ha) <strong>and</strong> introduction of S. hamata (59.2 q/ha). The minimum dry matter<br />
yield of 40.4 q/ha was recorded in control. In case of D. annulat um, the maximum dry<br />
matter yieid of 74.0 q/ ha was recorded with application of 60 kg N/ ha+30 kg P:J0s/ha followed<br />
by introduction of S. hamata-rsts kg ,P 20s/ha<br />
(67.6 q/ha from grass-l-Si I qrha from<br />
legume=72.7 q/ha) <strong>and</strong> introduction of M. atropurpurcum-l-J kg P 20s/l1:i (68.3 q/ha from<br />
grass-t2,8 q/ha from lcgume",=71.1 q/ha). The minimum dry rnatu r yield of 42.3 q/ha was<br />
recorded in ccn.rol.<br />
significant differences in plant height due to different treat nen,s was not observed in<br />
roth the grasses. However, the maximum plant height of i21.3 ern <strong>and</strong> 108.9 cm was noted<br />
i.i C. ciliaris <strong>and</strong> D. annulatt.m respectively with introduc ion of M. £IIropurpureum-s- 30 kg<br />
P 20,,/ha in case of C. ciliuris <strong>and</strong> with 60 kg N-j-40 kg PllO[,/ha in case of D. annulat um,<br />
t<br />
Studies on crude protein content revealed that due to application of fertilizers <strong>and</strong> introduction<br />
of various legumes, the CP content increased in ail the treatment combinations in both<br />
the grasses as compared to control. The maximum CP content of 9.36 percent was recorded<br />
in case of C.ciliaris with introduction of Mvatropurpurcum-r si) kg P 20s/ha followed by application<br />
of 60 kg NJha (9.27 percent) <strong>and</strong> introduction of S. hamata-s-st) kg P20S/ha (91.0<br />
percent). The maximum CP content of 7.61 percent was noted in control: In case of<br />
D. annulatum the maximum CP content of 8.14 percent was observed with introduction of<br />
M. atropurpurcum followed by introduction of S. hamata alone (8.05 percent) <strong>and</strong> S. hamata<br />
+30kg K 20n /ha (7.88 percent). The minimum CP content of 7.0% was noted in control<br />
Fur ther, it was seen that the CP content increased in all the introduced legumes due to application<br />
of 30 kg P20s/ha in both the grasses species. Among the legumes, the maximum C P<br />
content was recorded in C. t ernatca <strong>and</strong> the minimum in case of S. scabra in both the<br />
grasses.<br />
7. Effect of spacing <strong>and</strong> phosphate on the productivity of grasses intercropped with<br />
Sesbar i 1 sesban.<br />
Studies were repeated during the year with three spacings (50, 75 <strong>and</strong> 100 em) <strong>and</strong><br />
three levels phosphorus (0, 30, <strong>and</strong> 60 kg P 20s/ha) in .Cehchrus ciliris <strong>and</strong> Dichanthium<br />
annulatum to know the suitable spacing for intercropping of Sesbania sesban for getting .the<br />
high.r quality forag-, Three cottings were taken on 19.7.84, 27,8.84, & 1.1084 in case of<br />
C. ciliaris <strong>and</strong> five on 23.2.84, 16.4.84, 4.5.84, 17.9.84 <strong>and</strong> 2.11.84 in case of D. annulatum,<br />
Total of all the CUiS were utilized for statistical analysis in both the grasses.<br />
123 )
Results oft dry matter yieid exhibited that there was nc significant response due to<br />
different spacings <strong>and</strong> phosphate application on grass or legume as well as total yield of<br />
grasa-j-legume in both C. ciliaris <strong>and</strong> D. annulatum, However, the maximum dry matter<br />
yield of 79.5 <strong>and</strong> 55.8 q/ha WJ,s obtained with C. ciliaris <strong>and</strong> D. annulatum, respectively wi.h<br />
50 ern spacing. In case of S. sesban, the maximum dry matter yield of 1.1 <strong>and</strong> 8'9 q/ha was<br />
recorded when interetopped in C. ciliaris <strong>and</strong> D. annulatum, respectively at 75 em spacing,<br />
However, the coral yield (grass-j- legume) of 80..4 <strong>and</strong> 61.8 q/ha was nc ied with C. cilia. is<br />
<strong>and</strong> D. annulatum respectively at 50 ern spacing.<br />
With application of phosphorus, there was no variation in dry matter yield of grass as weill<br />
as legume in caSe of C. ciliaris while in case of D. annulatum, the maximum dry matter yield<br />
of grass' <strong>and</strong> Iegurne was recorded at 60 kg P205/ha' Further, it was Seen that due to high<br />
mortality of Sesbania, the dry matter yield of legume was very low in both the grasses as<br />
compared to previous year. Data on plant height, <strong>and</strong> number of tillers/plant revealed no<br />
significant variation due to different spacings <strong>and</strong> levels of phosphate application in both the<br />
grass species.<br />
Results on crude protein conten showed that there was not much variation in C P<br />
content of both the grasses as well as Sesbania due to different spacings. However, the<br />
maximum C P Content of D. annulatum <strong>and</strong> legume was 6.21 <strong>and</strong> 21.24 per cent respectivelv.<br />
The C P content of 6.91 per cent in C. ciliaris <strong>and</strong> 21.36 per cent in legume was recorded at<br />
the spacing of 100 em. As regards the application of phosphorus also, there was not much<br />
variation in C P content of both the grasses as well as in Sesban'a. However, the maximum<br />
C P content of 6.82 per cent in grass <strong>and</strong> 21.05 per cent in legume was recorded in case of<br />
C. ciliaris <strong>and</strong> in case of D. annulatum, the highest C P content of 6.33 per cent in grass <strong>and</strong><br />
20.98 der cent in legume was noted when 30 kg P 2 0 ,j/h:t was applied.<br />
8. Effect of spacing <strong>and</strong> cutting regime of Sesb.uii a sesban on the productivity of Cenchrus<br />
ciliaris under intercropping system.<br />
The experiment was continued for the second<br />
year with 3 spacings (50, 75 <strong>and</strong> 10) em)<br />
of C. ciliaris <strong>and</strong> 3 cutting heights of intercropped Sesbania (i5, 30 <strong>and</strong> 4S em, to know the<br />
suitable spacing <strong>and</strong> cutting height for getting the maximum quality forage from C. ciliaris<br />
<strong>and</strong> S. sesban.<br />
Results on dry matter yield revealed that there was no significant effect of different<br />
spac.ngs on the dry matter yield of grass, legume <strong>and</strong> grass+legume. However, the maximum<br />
dry matter yield of 55.01 q/ha (5495 q/ha fro.n grass-t-o.tz q/ha frorn legume) was obtained<br />
witn 50 cm spacing followed by 75 em spacing (53.84 q/ha from gras
legume=54.37 qjha). The minimum yield of 47.71 qjha (47.03 q/ha from grass +0.68 qjh'l<br />
from legume) was recorded with 100 em spacing. There was no significant difference on dry<br />
matter yield of grass, legume as well as grass-l- legume due to different cutting heights of<br />
Scsbania. The dry matter yield obtained from grass-l-Iegume at 30 em cutting height (52.58<br />
q/ha) <strong>and</strong> 45 em cutting height (52.82 q/ha) was at pal. The dry matter yield obtaied from<br />
Sesbania was very low as compared to previous year due, to higher mortality of the plantsduring<br />
the summer season. Thus, it showed that Sesbania is not suitable under rainfed<br />
conditions, under frequent cutting system. Further, the mortality of plants at 15 em. cutting<br />
height was higher as compared to 30 <strong>and</strong> 45 cm cutting heights. Data recorded on plant<br />
height <strong>and</strong> number of tillersjplant also showed no significant variation due to different<br />
sf acings <strong>and</strong> cutting heights.<br />
Results on crude protein content showed the 50 cm sraCIng gave slightly higher C P<br />
content (6.75 per cent C. ciliaris while C P content in S. sesban was higher (22.10 per cent)<br />
at 100 em spacing. The cutting at 45 em height gave higher C, P. content in both Cenchrus<br />
(6.93 per cent) <strong>and</strong> Sesbania (22.67 per cent) followed by 30 cm cutting height (6.50 per cent<br />
in C. ciliaris <strong>and</strong> 21.96 per cent in S. sesban,<br />
9. Effect of management practices on the productivity of grasses<br />
(a) Cenchrus ciliaris, Studies were continued for the third year with 3 weeding treatments<br />
(0, 1 <strong>and</strong> 2 weeding during rainy season) <strong>and</strong> nitrogen versus legume treatment (0 <strong>and</strong> 60 kg<br />
N/ha <strong>and</strong> introduction of Stylosanthes hamata in the interspaces of two rows of grass) to<br />
know the productivity of C. ciliaris uuder various management practices. Three cutting were<br />
taken on 19.7.84, 25.8.84 <strong>and</strong> 17'10.84.<br />
The results indicated that there was no significant effect of weeding on dry matter production.<br />
However, weeding gave higher dry matter yield than without weeding. Further, weeding twice<br />
during rainy season did not show much benefit for dry matter yield (60,66 q/ha) as compared<br />
to weeding once (59.95 q/ha). Significant effect on dry matter yield was recorded due to<br />
introduction of S. hamata. The maximum dry matter yield of 56.66 qrha (48.40 qjha from<br />
grass+8.26 q/ha fr ..m S. hamata) was obtained with introduction of S. hamata followed by<br />
application Of 60 kg N/ha (54.05 q/ha) <strong>and</strong> control (46.04 q/ha).<br />
Data recorded on plant height, number of tillers/plant <strong>and</strong> tussock diameter showed<br />
that there were no significant differences in these characters due to different weeding treatments<br />
as well as application of nitrogen <strong>and</strong> introduction of S. hamata. However, weeding gave<br />
h gher number of tillers/plant as compared to without weeding. Application of fertilizer as<br />
well as introduction of S. hamata also showed higher number of tillers/p!ant, than ~o~tro)·..<br />
( 125 )
';}Resultson crude.protein content showed that C r content in C. ciliaris due to 0, 1 <strong>and</strong><br />
2\veedings were 7~00, 7.08, <strong>and</strong> 7,,29, per cent respectively. Application of 60 ,kg N/ha gave<br />
'the maximum C. P.content of 7,35 pel cent followed by; introduction ,of S. hamata (7'\7 per<br />
cent). ,The minimum C P content of 685 p~r cent was recorded in control; The C P content<br />
in S. hamata was slightly higher due to weeding treatments as compared to control,<br />
. .<br />
~<br />
(b) Dichanth'um'onnulatum. Similar,· experiment was. continued for the third year with<br />
D.'annulatum: Total five cutting were taken on 24.2.84, ~ 17.4.84; '10.884, 29.9.84 <strong>and</strong> total of<br />
ail' the cuts were utiliz~d for statistical analysis.<br />
! .' jf ~, •<br />
.. The results revealed that the dry matter yield signficantly differed with different<br />
·weedi·f,g'lre~&ments. Further, there was no-benefical effect of two weeclings as compared to one'<br />
Ho~evdr,"th'e,maximum'&ymattetyieldof 87.09 q/ha (82.59 q/ha from-grass-l-d.Sf) q/ha<br />
fr~m"JeguiTIeYwasd'bta'inedwith two' weeding followed .by one (85.62.q/ha). Application of<br />
nitrogen ~s well as introduction of S. hamata also showed significantly higher dry matter<br />
yield as compared to control. The dry matter yield obtained with introduction of S. hamata<br />
(78.63 q/ha from glass+5.15 q/ha from legume'=83.78 q/ha) was 'H par with-application of<br />
60 kg Njha (83 04 q/ra). . ,<br />
" Data on plant height <strong>and</strong> tussock diameter did not show significant variation due to<br />
differtnt~cedingtreatments as well as application of nitrogen <strong>and</strong> introduction of legume.<br />
0:
Results indicated no significant effect of different spacings on dry matter ,yield of grass<br />
I .gumesas well as grass-}legume. However, the maxirhu~' dry matter' yield'of 66,76'qjha<br />
(4( .09 J,jl1a from grass+2067 4jha from legume) \.Jal~. ob'tairledwithl00 cm spacing' followed<br />
by .Ocm spacing {S0.53 qjha Lam grasstl5.45 qjha from l~gume,=65:9SqIHa).Further,<br />
significant effect of phosphorus was observed on the dry matter yield of g.ass-i-legume while<br />
significcnj effect phosphorus W.lS not seen on the yield of grass alons as legumealone. The<br />
maximum dry matter yield of 72.95 qjha (54,11 qjha from grass+1.8.74 qjha ffomJ.~gurile)<br />
was obtained with application of 60 kg P205jha folow rd pyapp1icll.tion of 30 kg F20 51.ha<br />
(54.44 qjhJ. from grass+ 17.36 qjha from legume=71.0S qjha). Thus, there was not much<br />
variation in dry matter yield with application of 30 <strong>and</strong> 60 kg P 2 0 5jha.<br />
) '''. .<br />
Data on plant height showed no significant effect due to different spacings as ,,~elI. a's<br />
applicatir n of phosphorus, in C. ciliaris. As regards the tiller production, It va.ned slgntficatly<br />
with different spacings aud the maximum tillersj plant (32.0) was noted with 100 cm<br />
Sp1C'Ug followed by 75 cm (25.S) <strong>and</strong> '50 em (21.5) ..<br />
The crude protein content did not show much variation due to djff~rent'~raci.ng·'in<br />
C. ciliatis as well as Svhamata. However. .73pm spacing gave sli,getly .hi9~~,~,;CP,~Ori;b'~'t Of<br />
6,91 <strong>and</strong> 13.99 percent in C. ciliaris <strong>and</strong> S. hamata respectively as cornp~,rSf'\ ~9; 50"~il1l,~~y~;;1I<br />
as 100 em spacing, There was no response of p~osphoru~ on C P content G.._fi/~p(is ,~hI1e<br />
application of 60 kg P 2 0 5jha gave slightly higher CP content. ,,(14,.01 R~rcent) inJ,;: hfin1ata<br />
as compared to the "control, ., '1.1 "" ....\._.<br />
I '
The application of nitrogen as well as intercropping of annual legumes increased the<br />
C P content in C. ciliaris. The maximum C P content of 8.05 percent was recorded with<br />
application of 60 kg Njha followed by intercropping of guar (7.61 percent) <strong>and</strong> arhar (7.43<br />
percent). The minimum C P content of 6.82 percent was recorded in control.<br />
. Thus, intercropping of annual legumes was found to be beneficial in C. eiliaris as indicated<br />
by their dry matter yield <strong>and</strong> C P content. In addition to forage, the grain yield was<br />
also obtained from these legumes as a bonus. However, out of four legumes tried, arhar<br />
was found to' be more beneficial, which also gave fuel yield of 2.1 q{ha.<br />
12. Evaluation of Dichanthium annulatum pasture with <strong>and</strong> without legume for sheep<br />
production,<br />
Studies were conducted to know the performance of M<strong>and</strong>ya sheep grazed on the pure<br />
pastnre of D. annulatum <strong>and</strong> the mixed st<strong>and</strong> of D. annulatum-t-Stylosanthes hamata. The<br />
seedlings of D. annulatum were planted in July, 1983 at 50 em between rows <strong>and</strong> 30 em between<br />
plants in case of pure st<strong>and</strong> while in caSe of mixed st<strong>and</strong>, the distance of grass was maitained<br />
1 m between rows <strong>and</strong> 30 ern between plants. S. hamata was sown in the interspaces<br />
of two rows of grass in line at the rate of 6 kg seedl ha after one week of planting of the<br />
gr .ss, In the end of November, 19n, the legume <strong>and</strong> grass were harvested <strong>and</strong> regrowth.in<br />
July, <strong>1984</strong> was utilized by grazing through M<strong>and</strong>ya sheep. The area of each pasture (pure<br />
<strong>and</strong> mixed st<strong>and</strong>) was 1000 m 2 . Four sheep of similar age <strong>and</strong> weight introduced in both<br />
the pastures for grazing on 25.7.84 <strong>and</strong> withdrown on 29.8.84 in case of pure pasture <strong>and</strong><br />
on 12.9.84 in case of mixed pasture when the body weight of sheep was started decreasing,<br />
Again regrowth of the pastures during the month of October, <strong>1984</strong> were utilized for second<br />
rotation of grazing. In both the pastures again same number of sheep were introduced for<br />
grazing on 12.10.84 <strong>and</strong> withdrawn on 2.11.84 when the body weight again started decreasing;<br />
The body weights of sheep recorded at one week interval.<br />
The forage production was also recorded at three weeks interval in both the pastures<br />
The dry matter yield at the time of introduction of animals for grazing (25.7.84) was 22.1<br />
<strong>and</strong> 22.2 q{ha (17.4 q{ha) from grass +4.8 qjha from legume) in pure <strong>and</strong> mixed pasture<br />
respectively. The dry matter yield recorded on 16.8.84 <strong>and</strong> 5.9.84 in first rotation of grazing<br />
was 24.8 <strong>and</strong> 12.8 q{ha in pure pasture <strong>and</strong> in themixture of grass-j-Iegume was 19.9+<br />
4.2=24.1 q{ha <strong>and</strong> 5.6+5.2=10.8 q{ha respectively. The forage yield recorded in second<br />
rolationofgIHingon11.l0.84,2.11.84 <strong>and</strong> 16.11.84 was 19.1,21·5<strong>and</strong>5.7q{hainpure<br />
st<strong>and</strong> & 21.1 q{ha (15.6 qjha from grass-l-e.I q{ha from legume), 22.2 q{ha (I8.1 q/ha from<br />
g~ass 1"4.1 q/ha from legume), <strong>and</strong> 6.9 q{ha in the mixed st<strong>and</strong> respectively.<br />
128 )
In first rotation of grazing the body weight gain in sheep increased upto 16.8.84 <strong>and</strong><br />
maintained their initial weight upto 22.8.84 in case of pure pasture while in case af mixed<br />
p'!.sture (grass legume), the gain the body weight was observed upto 16.8.84 <strong>and</strong> maintained<br />
their initial weight upto 12.9.84. Thus, it was Seen that the gain in .body weight of M<strong>and</strong>ya<br />
sheep was 47.6 <strong>and</strong> 50.0 g/sheep/day in pure <strong>and</strong> mixed pasture respectively. However,<br />
sheep grazed on mixed pasture maintained their initial weight for 28 days more while in case<br />
of pure st<strong>and</strong> 7 days only. The gain in body weight in second rotation of grazing was 27.4<br />
<strong>and</strong> 28.5 gjsheep/day in pure <strong>and</strong> mixed st<strong>and</strong> respectively.<br />
Thus, the results revealed that the body weight gain of sheep in both the pastures were<br />
almost same but the sheep mainta n id for longer duration in mixed pastures of Dichanthium<br />
+S. hamata as compared to pure st<strong>and</strong> of Dichanthium. This was bacause of the batter<br />
quality of herbage available in the mixed pasture as the forage production in both the pastures<br />
was similar.<br />
1.3 Primary <strong>and</strong> Secondary productivity of mixed <strong>and</strong> pure pastures of slratro, Dolichos,<br />
Chrysopogon <strong>and</strong> Setaria.<br />
(G. K. Dwivedi)<br />
1. Effect of N<strong>and</strong> P with the introduction of Dolichos on forage production of<br />
chrysopogon pasture under rainfed conditions.<br />
Ax experiment was repeated during (he second year with four levels of nitrogen (0,30,<br />
60 <strong>and</strong> 90 kg/ha) <strong>and</strong> three levels of phosphorus (0, 20 <strong>and</strong> 40 kg P 205/ha) in an established<br />
pasture at the spacing of 50 em x 30 em to know the optimum levels of nitrogen <strong>and</strong><br />
phosphorus for getting maximum quantity of quality forage under rainfed conditions. Dolichos<br />
was intercropped in between the pasture rows during July using a seed rate of ,20 kgrba.<br />
Results showed that the maximum mixed dry matter yield of 112.46 q/ha (108.80 q/ha<br />
grass+3.66 q/ha legume) was obtained with the appic ition of 90 kg N/ha-followed by 102.98<br />
q/ha (88.60 qjha grass+4.38 q/ha legume) with 60 kg N/ha. Minimum dry forage yield of<br />
77.25 qjha (75.84 q/ha grass+2.41 q/ha legume) was obtained in control treatment with<br />
no nitrogen.<br />
With regard to phosphorus, maximum dry matter yield of 106.49 q/ha (101'21 q/ba<br />
grass+5.28 qjha legume) was obtained with the application of 40 kg P 2 0 5/ha followed by<br />
96.17 q/ha (93.14 q/ha grass+3.03 q/ha legume) with ",0 kg P205/ha <strong>and</strong> minimum of 89.67<br />
q/ha (87.06 q/ha grass + 12.61 q/ha legume) in control (no phosphorus) plots.<br />
( 129 )
2. Response of. Stylosunthes species/varieties with the intercroppingof Chrysopo~on fulous<br />
'pastureun~er rainfed conditions. . .<br />
The experiment was repeated during the second year in an established pasture of<br />
Chrysopogon fulvus (Cv. Mhow). Introduction of six speciesjcultivars of stylosanthes<br />
,(S. gracilis, .S. humilis S. hamata, S. scabra 40205, S. oiscosa, S. scabra -40289) <strong>and</strong> three<br />
treatments of nitrogen (20,40 <strong>and</strong> 60 kg N/ha) alongwith control (grass alone) were imposed<br />
to select the suitable species of stylosanthes for maximum 'yield <strong>and</strong> quality of forage as well<br />
as to economise nitrogen use. The results showed that the maximum dry matter yield of 94.26<br />
qrha was obtained with the application of 60 kg N/ha followed by 92,74 q/ha with 40 kg<br />
N/ha. S. scabra-40289 produced 90.08 q/ha (8 f.35 q/l13 grass+3.07 q/lu legume). The<br />
minimum dry matter yield was obtained in control grass alone. There was an appreciable increase<br />
in crude protein content of herbage due to introduction of various species of Stylosan<br />
'!hesas well as application of nitrogen as compared to control plots.<br />
3. Eflect of N levels on the mixed swards of Chrysopogon Iulous-Chrysopogon cv. Mhow<br />
-l-Siratro.<br />
This experiment was repeated during the year in an established pasture of Chrysopogon<br />
cv, Mhow+ siratro, six levels of nitrogen (0, 20, 40, 60, 80 <strong>and</strong> 100 kg N/ha) were applied<br />
in 1st week of July.<br />
The results revealed that the maximum mixed dry forage 'yield of 76 93 q/ha (7443<br />
q/ha grass+2.50 q/ha legume) was recorded with the application of 100 kg N/ha. Minimum<br />
forage yield of 35.64 q/ha (34.27 qjha grass-j-Ls q/ha legume) was obtained in the control<br />
(no nitrogen) plots.<br />
4. Effect of phosphorus levels on the mixed swards of ChIJ'SOpOgol1 pasture-CIIr)'sopogon<br />
cv, Mhow-l-Siratro.<br />
The field experiment was continued during the second year. The treatments consisted<br />
of six levels of phosphorus (0, 20, 40, 60, 80 a-id 100 kg P 20,j/ln). Applic.ition of 20 kg<br />
~/ha' was done as basal dose in Ist week of July in all the plots.<br />
Phosphorus application progressively increased the dry matter yield with the result<br />
that maximum dry forage yield of 54.24 q(ha (5049 q/ha grass+3.75 q/ha legume) was<br />
obtained at 100 kg P 2 0 5/ha followed by 80. 60 <strong>and</strong> 40 kg P 2 0 5/ha. The minimum dry matter<br />
yield of 37.29 q/ha (35044 qyha grass+ 1.85 q/ha legume) was obtained in control (no<br />
phosphorus) treat.n m t.<br />
130 )
5. Effect of spacing <strong>and</strong> seed rates on forage production in grasses-Setaria sphacelata:<br />
An experiment was repeated during the second year with three spacings (25, 50 <strong>and</strong> 75<br />
cm plant to plant <strong>and</strong> row to row) with six seed rates (2.5, 5.0, 7.5, 10.0, 12.5 <strong>and</strong> 15.0<br />
kgjha).<br />
Results showed that the maximum dry matter yield was obtained with narrow spacing<br />
of 25 ern x 25 em followed by 50 cm x 50 cm. As regards the seed 'rates, maximum dry matter<br />
yield was recorded with 10 kgjha followed by 12.5 <strong>and</strong> 7.5 kgjha, Minimum yield was<br />
obtained with 2.5 kg seedjha.<br />
1.5 Effect of fertilizers <strong>and</strong> harvesting schedule on below <strong>and</strong> above ground biomass in<br />
different grasses <strong>and</strong> legumes.<br />
(K. C. Kanodia <strong>and</strong> K. P. Niranjan)<br />
I. Studies on the ecology of grasses as influenced by cutting management cum fertilizers<br />
under rainfed conditions-Ifeteropogon co~tqrtlls.<br />
With a view to assess the maximised forage production under different cutting regimes<br />
this experiment w is initiated on a natural grass species viz., Ifet eropogon contortus (L) P.<br />
Beaut It involved three cutting intervals (20, 40 <strong>and</strong> 60 days) <strong>and</strong> 4 doses of N fertilizer<br />
(0,30,60 <strong>and</strong> 90 kg Njha) replicated thrice during 1982.<br />
The role of cutting interval in spear grass revealed that the maximum dry matter yield'<br />
obtained (40.030 qjha), during the growth period with 60 days cutting intervals was in two<br />
harvests during September <strong>and</strong> November <strong>1984</strong> <strong>and</strong> the minimum (44.61qjha) .with 40 days<br />
cutting interval resulting in 3 cuttings. The dry matter yield with 20 days interval remained'<br />
rearly in between the two observations (45.73 qjln) where five harves,s (10 th August-Stlrh<br />
October 84) could be taken. However, the effect of harvesting intervals was not prominent<br />
in case of this grass.<br />
As regards the effect of nitrogenous fertilizers it was observed that the dry<br />
matter yield increased considerably with the increasing levels of fertilizers. The highest dry<br />
forage yield was obtained (54.61 q/ha) with 90 kg N/ha <strong>and</strong> the lowest (37.11 qjha) with<br />
control. However, differences between the dry matter yield with 60 <strong>and</strong> 90 kg Njha was quite<br />
clear. dry matter yield was 50% higher with the application of 90 kgjha as against no fertilizer<br />
treatment. The grass remained unproductive subsequently from middle of November under ,<br />
drylrnd conditions. .<br />
131
1.6 Evaluation of productivity of Chrysopogan pastures with <strong>and</strong> without legumes.<br />
(K. P. Niranjan <strong>and</strong> K. C. Kanodia)<br />
l' Studies en the relative efficacy of fertilizer <strong>and</strong> legumes in incr..asing the forage. production<br />
in Chrysopogon [ulnus under rainfed condition.<br />
.(a) Chrysopogon [ulous (Cv. Ch<strong>and</strong>igarh+Sesbania). The experiment was repeated for<br />
the second year. The treatments comprised of pure st<strong>and</strong> of Chrysopogon fulvus cv. Ch~ndigarh<br />
<strong>and</strong> fertilized with 0,45 <strong>and</strong> 90 kg Njha. Sesbania aegyptica was intercropped with<br />
the grass to test its efficacy in increasing the yield of herbage.<br />
The fertilizer treatments in the mixed st<strong>and</strong> consisted of all combinations of two levels<br />
of nitrogen (0 <strong>and</strong> 45 kgjha) <strong>and</strong> three levels of phosphate (0, 30 <strong>and</strong> 60 kg P20.5jha). The<br />
experiment was conducted iu R.B.D. with three replicates.<br />
Results showed that the maximum mixed dry forage yield (28.03 qjha) was obtained<br />
from Chrysopogon fulvus intercropped with Sesbani« <strong>and</strong> fertilized with 45 kg+30 of P20Sj<br />
ha, followed by pure st<strong>and</strong> of grass with the application of 90 kg Nj ha (26.16 qjha) while<br />
the minimum was abtained (16.49 q/ha) with the pure st<strong>and</strong> of grass without application of<br />
fertil izer,<br />
(b) Chrysopogon iulous (cv. Mhow+Sfylosanfhes scabra, 40289). The experiment was<br />
established Jast year <strong>and</strong> the fertilizer treatments were imposed during this year on the new<br />
growth. The treatments comprised of pure st<strong>and</strong> of Chrysopogon [ulous ev. Mhow obtained<br />
from the last year estabiishement <strong>and</strong> fertilized with 0, 45 <strong>and</strong> 90 kg N jha. Stylosanthes<br />
scabra (40289), a forage legume was intercropped with the grass to test its efficacy in icreasing<br />
yield of herbage.<br />
The fertilizer treatments in the mixed st<strong>and</strong> consisted of all combinations of two levels<br />
of nitrogen (0 <strong>and</strong> 45 kgrha) <strong>and</strong> three levels of phosphate (0, 30 <strong>and</strong> 60 kg PsOs/ha). The<br />
experiment was conducted in r<strong>and</strong>ornised block design with three replicates.<br />
Results showed that the maximum mixed dry for age yield (49.82 qjha) was obtained<br />
from C. [ulous intercropped wi th Sfylosanthes <strong>and</strong> fet tilized with 45 kg N +30 kg P20s/hl<br />
(46.32 q/ha). Minimum dry forage yield was obtained (22.58 q/ha) with the pure st<strong>and</strong> of<br />
grass without application of fertilizer.<br />
132 )
GM-I-2. EVALUATION, IMPROVEMENT AND MANAGEMENT OF NATIVE GRASS<br />
LAND,<br />
2.1 Imestigations on introduction of different legumes for the improvement <strong>and</strong> management<br />
of rangel<strong>and</strong>s.<br />
(K. C. Kanodia <strong>and</strong> K. P. Niranjan)<br />
1. Studies on the suitability of legumes in diffr-rent grassl<strong>and</strong>s for their maximised productivity<br />
(b) Eremopogon dominated grassl<strong>and</strong> community.<br />
With the aim of finding out a suitable legume Vjs the recommended dose of fertilizer<br />
this experiment was continued during its third year on the same natural Eremopogon dominated<br />
community on the same Spot in Divisional <strong>Research</strong> Farm area. The experiments. comprised<br />
on introduction of four legumes viz. Atylosia scarabaeoides. stylosanthes hamat a.S, quianensis<br />
<strong>and</strong> siratro at the recommended seed rate along with one dose of N-fertilizer @ 40 kg<br />
N jha in the form of urea <strong>and</strong> the 6~h as the control treatment was repeated during the year<br />
in Ercmopogon dominated grassl<strong>and</strong> at~C. R. farm, Jhansi. The treatments were imposed in<br />
the end of June 84 alongwith an uniform basal application of 20 kg P 2 0 5jha!n the form of<br />
SSP in the plots (4 X 3 m size) replicated four times in R. B. Design.<br />
The data revealed more or less similar dry forage yield in each treatment ranging between<br />
15.23 qjha <strong>and</strong> 15.71 qjha in S. quainensis <strong>and</strong> with fertilizer treatment to 17.94<br />
qjha in the sirato introduced plots the con trot treatment recordedtlf·08 qjha.<br />
2. Studies on the effect of time <strong>and</strong> method of sowing of legumes (Dolichos lablab) introduced<br />
in natural grassl<strong>and</strong>s.<br />
This experiment was laid out in 1982 with the pri mary aim to know the proper time<br />
<strong>and</strong> method of sowing of Dolichos lablab in a p'lrtially protected natural grassl<strong>and</strong> under<br />
rainfed conditions, Stu-lies were repeated with three methods of introduction viz, broadcasting,<br />
dibbling <strong>and</strong> line sowing of the legume <strong>and</strong> four dates (May end, mid June, June end <strong>and</strong><br />
mid July) in split plot design replicated thrice in a Heteropogon dominated grassl<strong>and</strong>.<br />
(a) Effect of time of sowing' Data on plant population of legume Dolichos established in<br />
the grassl<strong>and</strong> revealed higher plant population (1999 q/ha) where the legume was introduced<br />
in the end of June, followed by the middle of July. The minimum establishment was recorded<br />
133
4.5 Ecological studies .of semi-arid grassl<strong>and</strong>s<br />
(8, K. Trivedi, K. C. Kanodia <strong>and</strong> N. C. Verma)<br />
After recording pre-treatment data in the year 1983, the observations were recorded<br />
On the following.<br />
Botanical composition: Botanical composition was studied through quadrat method<br />
<strong>and</strong> about 46 herbaceous plant species were recorded. Grasses exhibited 3/4 Important<br />
Value Index (I. V.!.) while legume <strong>and</strong> forb components of thecommunity attained 1/4 LV.L<br />
of total vegetation' Amongp:::rennial grasses Sehim neroosum an Heteropogon contortus<br />
were in present in all the treatments. On the basis of LV.I. they occupied dominant <strong>and</strong> codominant<br />
position respectively. 1. V. I. of S, neroosum ranged from 30.2 to 79.7 in T 9 <strong>and</strong><br />
T lO treatments while that of H. cont ortus was from 17.9 to 85.8 in T 7 <strong>and</strong> T 12 respectively.<br />
Among legumes <strong>and</strong> Forbs Lndigot'era astragalina <strong>and</strong> Fimbnistyllus diphylla were the prominent<br />
species respectvely, .<br />
Plant biomass: 'The' total plantfbiomass ranged from 197.8 to 368.7 g/m2 in Ts <strong>and</strong><br />
T 2 treatments respectively. The biomass was less in comparison to previous year. The data<br />
revealed more than 90 percent biomass contributed by grasses whereas 10 percent or below<br />
by I-gumes <strong>and</strong> forb components. Major biomass contributors are S. neroosum <strong>and</strong> H. cont<br />
ortus. These two species added approximately more than. 70% of t01a1 plant biomass;<br />
Although, the plant biomass of legume component was low, it was interesting to note that<br />
they showed a positive response to phosphorus fertilizer <strong>and</strong> produced maximum biomass in<br />
!7 treatment (21.2 g/m 2 ) .<br />
Secondary productivity' Eight heifers were introduced for grazing on 10.9.84 <strong>and</strong><br />
withdrawn on 15 12.84. The average body weight was 131.5 kg. The weight of these heifers<br />
were taken fortnightly, The average bc dy weight gain was 27.1 kg for grazing period<br />
which comes about J280 gm/head/day. This gave slightly higher values in comparison to the<br />
previous one.<br />
Soil moisture In all the Seasons the soil moisture was taken by gravimetric method,<br />
It varied from 7..6 to 26.5 percent in rainy season, 2.1 to 6.7 percent in summer season while<br />
O. S to 5.9 percent in winter season. The moisture was .higher at lower depths.<br />
4.6 Autecology <strong>and</strong> growth behaviour studies in different range grasses.<br />
(S. S, Parihar)<br />
.<br />
1. The effect of nitrogen <strong>and</strong> length of primary growth period on y'ield of leaf an,d stem<br />
components of Chrysopogon (ulcus.<br />
135 )
The experiment was repeated during the monsoon of <strong>1984</strong>. The influence of length<br />
of growth period of the monsoon <strong>and</strong> levels of nitrogen application on yield of leaf <strong>and</strong> stem<br />
components of Chrysopogon fulvus was studied so as to evaluate the effect of rates of nitrogen<br />
fertilizer on (1) leaf yiel.1 (2) stem yield (3) percentage leaf crude protein (4) percentage<br />
stern crude protein. F01lf primary growth periods of 15, 30,45 <strong>and</strong> 60 days were used in<br />
combination with the nitrogen treatments of 0, 45 <strong>and</strong> 90 kg N/ha per Sea~on of growth<br />
applied as single dressing at the beginning of the growth period.<br />
The data on the effect of nitrogen defoliation tratments revelled that application of<br />
nitrogen significantly increased leaf <strong>and</strong> stem yield per tiller. However, nitrogen fertilization<br />
had more p.onounced effect on stem yield der tiller as compared to leaf yield per tiller. This<br />
increase in the stem yield was 23.56 <strong>and</strong> 52.56 per cent with the application of 45 <strong>and</strong> 90 kg<br />
Njha respectively over the control, while this increase in case of leaf was 5.77 <strong>and</strong> 14.94 per<br />
cent with same ni trogen levels, Thus, the effect of nitrogen application was more pronounced<br />
in stem as compared to leaf. Therefore, weight of teaf per unit weight of stem significantly<br />
decreased with increasing the nitrogen levels. However, nitrogen application had no effect on<br />
total number of live leaves per tiller,<br />
Application of nitrogen also significantly increased the total dry matter yield. The<br />
highest yield of total dry forage of 46.02 qjha <strong>and</strong> 53.55 ~jha was recorded at 90 kg Njha<br />
<strong>and</strong> 60 days of growth respectively.<br />
Increasing the growth period from 15 to 30, 30 to 45, <strong>and</strong> 45 to 60 days also significantly<br />
increased the yield of both the components, but particularly of.stem, The increase in<br />
stem yield was 78.35, 57.77 <strong>and</strong> 65.04 per cent with increasing the growth period from 15 to<br />
30. 30 to 45 <strong>and</strong> 45 to 60 days respectively. While in case of leaf yield per tiller this increase<br />
VIas 65.96,31.78 <strong>and</strong> 28.16 per cent with the corresponding growth period. The maximum per<br />
cent increase in both the components was recorded between 15 to 30 days of growth.<br />
2. Studies on seed viability <strong>and</strong> germination in different cul rivars of Cencltrus ciliaris <strong>and</strong><br />
C. set igerus.<br />
Earlier studies on seed viability <strong>and</strong> germination with different strains of C. clliaris<br />
revealed that seeds (spikelets) maintained some viability upto 48 months from the date of<br />
initial seed collection (when stored under norrml environmental condition), An acylated<br />
glycoside of cyanidin. cynnidin-S-arabinosid-, acylated with caffeic acid was isolated <strong>and</strong><br />
characterised from the spikslets. Therefore. it was desired to conduct the bi e-assay tests with<br />
the extr.rcied phytotoxin (glycoside of cyanidin) so as to observe th e biological activity of<br />
the quantified phytotoxin.<br />
136 )
The effect of different concentrations of the glycoside (concentration expressed as<br />
optical densities) on seed (caryopsis) germination. radicle <strong>and</strong> plumule growth revealed that<br />
(table 18) percentage germination was significantly reduced in higher concentration of the<br />
pigment, while lower concentration did not influence the germination significantly. Germination<br />
media with 0.1 <strong>and</strong> 1.0 O,Ds. had stimulatory effect on radicle growth, while higher conceatration<br />
had a negative effect on root growth. Shoot growth was comparatively less affected,<br />
at higher conentration negative effect was distinct.<br />
Table 18: Effect of different concentration of acylated cyanidin glycoside on seed germination,<br />
radicle <strong>and</strong> plumule growth of C. ciliaris after 72 hrs,<br />
Concentration in optical densities<br />
Control 0.1 0.6 1.0 1 5 SEM-1-CD at 5%<br />
Germination %<br />
81.25<br />
78'75<br />
75.26<br />
65.75<br />
43.75<br />
2.44<br />
7.51<br />
Root length (mm)<br />
2.37<br />
3.02<br />
2.87<br />
2.35<br />
1.87<br />
0,11<br />
0.36<br />
Shoot length (mm)<br />
2.20<br />
2.0<br />
1.87<br />
1.72<br />
1.25<br />
0,6<br />
0,5<br />
3. Quantitative estimation of Cyanidin glycoside from viable <strong>and</strong> non-viable seeds<br />
(spikelets).<br />
In view of the vital role of phenolic inhibitors for preserving seed viability for a<br />
longer period of time it was visualised that quantitative estimation of cyanidin glycoside<br />
from viable <strong>and</strong> non-viable seeds will be useful. Studies revealed that the concentration of<br />
cyanidin glycoside was higher in viable seed as compared to non-viable seeds (table 19).<br />
Table 19: Concentration of cyanidin glycoside in viable <strong>and</strong> non-viable seeds of<br />
C. ciliaris.<br />
Strain of<br />
C. ciliaris<br />
S-401<br />
S-531<br />
S-325<br />
S-571<br />
S-288<br />
Concentration in opical densities<br />
Viable (one<br />
0.81<br />
0.90<br />
0.80<br />
0.40<br />
0.71<br />
0.5 gram seeds (spkts) in 100 ml of 1% HCI.<br />
. ( 137 )<br />
year old)<br />
Non-viable<br />
0.60<br />
0.75<br />
0.68<br />
0.15<br />
0.68
Seed germination studies with Cenchrus setigerus :<br />
"Bioassay tesl~: 'Like C. ~i1iaris, bioassay tests with the extracted inhibitor of<br />
'C. jet~geruswasconducted to confirm the inhibitory effect on seed germination, radi~le <strong>and</strong><br />
plumule growth so as ~b observe the biological activity of the quantified phytotoxin. In case<br />
·ofcC.I~et'igerus also th~ pigment (acylated glycoside of cyanidin in case of C. set igerus also)<br />
had aii' inhibitory \~ffect on seed germination <strong>and</strong> shoot growth. Lower concentration had an<br />
-stimulatory effect on root growth.<br />
Owing to inhibitory effect of cyanidin glycoside on seed germination of C. Ciliaris<br />
<strong>and</strong> 9. setigerus, a bioassay test was conducted with the same concentra ion of phytotoxin 10<br />
determine if the Same concentration applied were inhibitory to germination in other kind of<br />
. seeds. Therefore, Siratro (Macroptelium- atroparpurcums seeds were used for allelopathic<br />
. - ..bioassayexperiments, since siratro (a pasture legume) represents a good germination rate.<br />
In case.of Siratro .seeds.alsq, inhibitory. effect on seed germination" plumule growth <strong>and</strong><br />
radical growth was quite distinct. However, lower concentration had a stimulatory effect on<br />
radicle growth.<br />
Quantitative estimation: Quantitative estimation of Cyanidin glycoside from viable<br />
<strong>and</strong> non-viable seed revealed the higher concentration in viable seeds as comparedto non<br />
. viable. seeds, which confirmed the labile nature or the inhibitor,<br />
4. Studies on isolation <strong>and</strong> identification of germination inhibitors jn other range<br />
grasses.<br />
. .Inhibition o'f seed 1;ermination, a cornmonlv known allelopathic phenomenon, is of<br />
commonEccurrence I in various range grasses. Therefore, studies were initiated to isolate <strong>and</strong><br />
identify t~es~ germination inhibitors present in the diaspores by paper chromatography,<br />
absorption spectra <strong>and</strong> colour reactions. Chromatographic studies revealed the presence of<br />
flavonoid glycosides in many range grasses viz. Dlchanthium annulatum, Chrysopogon (ulous<br />
<strong>and</strong> Het eropogon contortus. Alcoholic extract of Dichant.hium annulatum seeds indicated the<br />
.presence of cyanidin <strong>and</strong> guercet in glycosides. Similar extract of Chrysopogon Iuluus seeds<br />
indicated the presence of guer.:etin glycoside. Alcoholic extract of Het eropogon con ortus<br />
,< seeds gave positive tests for phenolic by ferric chloride <strong>and</strong> aluminium chloride tests.<br />
4.7 Studies on competitive, adaptive <strong>and</strong> evolua t.onary economic grassl<strong>and</strong> ecosystem.<br />
(P K Jayan <strong>and</strong> N. C. Verma)<br />
I ( '1:8 i :
1. Ecological evaluation <strong>and</strong> management studies of forage species for incorporation in ~he<br />
restructured' grassl<strong>and</strong> ecosystem, ' .<br />
In the. 2nd year of the experiment, Braehiaria brlzantha, Paspalum dilataium, Panicum<br />
cotoratum, Panici.m maximum cv. Gatton, Set~ria spha~e/a'ta <strong>and</strong> Sty/osaf/tlles, hama:a ,CV.<br />
verano shined regeneration at the onset of monsoon. One each of grass monoculture <strong>and</strong><br />
glass/legume m,ixlun: (J:l proportion) were fertilised with 63. kg ~/h~' <strong>and</strong>. 60 Kg P20 5/ha<br />
respectively. Recommended doses of nitrogenous <strong>and</strong> phosphatic fertilizers were applied to<br />
grass <strong>and</strong> grassjtegume mix lures, respectively so as to compare te nitrogen' econol~y through<br />
growing of grass/legume mixtures.<br />
The studiesrevealed that the grassBraclziaria brlzantha grown as monoculture with or<br />
without 60 kg,N/ha fertilization \;a5 inferior to grass/legume mixtu~e 'with, ot without 60 kg<br />
P205!ha as 'al~, leg~mb'monoculturg, The maximum dry JPatter y~el
legume with grass collections 3133 <strong>and</strong> 59.1 yielded 63.5 <strong>and</strong> 57.3 q DM!ha respectively in<br />
which the grass contributed 86.01 <strong>and</strong> 58.80 percent to total yield. Among the mixtures of<br />
grass cellections studied total herbage yield was the lowest in C. ciliaris No. 358+S. hamata<br />
Harbage production from the above mixture was 42 q DM!ha of which 6l23~-:' was contnbuted<br />
by glass. Total herbage yield from C. ciliaris strains <strong>IGFRI</strong> 3133, 3108 <strong>and</strong> 214 with<br />
S. hamata were 63.5, 56.6 <strong>and</strong> 46.0 q!ha of which the gras- collections contributed 86.01,<br />
85.60 <strong>and</strong> 90.37 percent respectively to total yield. Here, the contribution from legume was<br />
of the order of 14.09, 14.34 <strong>and</strong> 9.5 percent respectively. Among the gr\tss collections grown<br />
along with S. hamata, Jodhpur local was for.ad to be g-od with 53.77/~ from grass <strong>and</strong><br />
46.23% from legume to total yield.<br />
In another experiment, relative palatability ofCenc:;rus ciliaris collections was studied<br />
using sheep as the test animal during July! August when the grass attained full bloom <strong>and</strong><br />
during September when the grass was ready for harvest. Based on the intake of grass collections<br />
during July!August, the order of preterance of collections to animals was 262, 358,<br />
Agra local, 3108, 3132, Pusa giant, Jodhpur local, 3133, 357, 59d, 303 <strong>and</strong> 214. During<br />
September, the test was repeated <strong>and</strong> it was found that the acceptability of grass collections<br />
differed from that observed during July!August The order of preference was 358, 3133,<br />
303,262, 3108, 3132, Agra local, 357, Pusa giant, 214, Jodhpur local <strong>and</strong> 59-1. Further,<br />
it was observed that the intake of forage by animal for all grass collections declined during<br />
. September.<br />
1. The studies on restructured grassl<strong>and</strong> ecosystems with special reference to their consumers<br />
continued for the 'Znd year Cenchrus cliaris pasture was fertilised with 60 kg N!ha<br />
while Ccnchrus ciliaris-rStylosanthes hamuta pasture with 60 kg P 2 0 5 / ha. Grazing "as imposed<br />
from 1.8.<strong>1984</strong> which continued up to 6.9.84 znd thereafter the animals grazed on Cenchrus<br />
pure pasture Were stallfed with pure gras: <strong>and</strong> the other group with mixture of Cenchrus<br />
ciliaris + Stylosantles hamata. The stall feeding .continued upto 15.10 <strong>1984</strong>. Eight cross<br />
bred calves of equ il body weight <strong>and</strong> age group divided into two groups of four numbers<br />
each were used for the experiment.<br />
It was recorded that the ::'.verage live weight gain was higher (275.4 g!head/day) in the<br />
gro'-JP of animals gl azed in mixed pasture of grass <strong>and</strong> legume as compared to the group of<br />
animals grazed <strong>and</strong> fed on pure herb:.ge of Cenchrus ciliaris. The live weight gain from pure<br />
pasture was 210 grnsjl eadjday, The dry matter consumption was found to be higher (2.0 kg<br />
/100 kg body weight) in the group of animals grazed on C. ciliaris pure pasture whereas in<br />
the mixed pasture the intake was 1.87 kgfl00 kg body weight. During stall feeding the dry<br />
matter intake for grass Cenchrus ciliaris was 2.34 kg/IOO kg body weight while for grass!<br />
legume mixture the same was recorded as 2.24 kg/!OO kg body weight. The herbage utilization<br />
from C. ciliaris pasture was 60% while from mixed posture the same was recorded as<br />
442% only.<br />
140
DIVISION OF AGROSILVIPASTURE<br />
ASP-1<br />
AUTECOLOGY OF FODDER-CUM-FUEL TREES/SHRUBS<br />
1.1 Autecology of Leucaena leucocephala (Lam.) de wit.<br />
(P. S. Pi.lthak)<br />
1. Growth performance of 12 populations in agroforestry,<br />
At the completion of 3 years, K 102 recorded, the maximum collar diameter followed<br />
by silvi-4 which recorded the maximum dbh. Plant height was also maximum in silvi-4.<br />
Due to very high summer temperature <strong>and</strong> low soil moisture, Lidioersifolia showed apical bud<br />
mortality <strong>and</strong> few trees dried. K-341 continued to give the poorest growth of all.<br />
The number of flowers produced per head in each of these varieties during March<br />
.April indicated statistically significant variation between the varieties with maximum flowers<br />
in K-341 (l63.3/heatl) followed by K-6 (l51.4/head) <strong>and</strong> the minimum in L. dioersiioiia<br />
(65.5/head). Variety K-6 showed very high Cv. (20.9~;';) while K--28 gave the minimum<br />
(5.4%).<br />
The mean pod length was the maximum in K-132 (30.69±2.4 cm) followed by El<br />
Salvador (24.79± 1.6 cm) <strong>and</strong> the minimum in L. dicersitolia (10.33 ± 1.3 ern). Pod breadth<br />
was the maximum in K-8 (2.61 ±0.1 cmj followed by K-28 (2.52±0.14 em) <strong>and</strong> the minimum<br />
in E1 Salvador (I.26±O.2 em). Number of seeds per pod were the maximum in K-132<br />
(24.2±2.27) followed by K-341 (23.4± 1.2) <strong>and</strong> the minimum in L. diuersiiolia (13.5±3.1).<br />
The empty pod weight was the maximum in K-132 (1.29±0.16 g/pod) followed by 1(-8<br />
(l 26±0.13 g/pod) <strong>and</strong> the minimum in L. dioersifolia (0.18±0.03 g). The test weight of<br />
seeds was also the maximum in K-132 (74.56±3.25 g) followed by K-28 (68.6±2.03) <strong>and</strong><br />
the minimum in L. dicersitolia (l2.16±0.59 g). The varietal differences for these attributes<br />
were found to be statistically sg uficant. .<br />
2' Growth comparison of 17 Australian populations with 3 species of Leucaena.<br />
Under life saving irrigation, 20 lines of Leucaena were maintained <strong>and</strong> at<br />
"<br />
the end of.2<br />
years, the peak height reached in No. 15 (622 ern) followed, by K~8 (621 ern) <strong>and</strong> the<br />
( 141
mmunum in case of L. puloerulenta (308 em). The collar diameter was maximum in K-8followed~by<br />
No. 14 <strong>and</strong> the minimum in No.5. The maxi-mum dbh was recorded in No. 15.<br />
The number of flowers per head during March the maximum in No. 12 (164.6 ± 13.9)<br />
followed by No.7 (160.4± 18.4) <strong>and</strong> the manirnum in L. pul oerulenta (42.8::!:8.1). The<br />
differences between the varieties were statistically significant. The L. collinsii flowered gregariously<br />
but did not produce any pod or seed. L. puloerulenta though flowered well but<br />
could only produce 5 very small <strong>and</strong> poor pods with a few healthy seeds. K-8 was observed<br />
late flowering t;:pc with more vegetative growth.<br />
3. Growth comparison 01 15 populations: The three plant types of Lcucaena viz., Hawiian,<br />
Peruvian <strong>and</strong> Salvador with 5 varieties in each were planted in three replications. The<br />
growth studies revealed that Silvi-4 <strong>and</strong> K-8 were the populations with maximum diameter<br />
<strong>and</strong> height. The slowest <strong>and</strong> more vigorous flowering <strong>and</strong> fruiting ones were the Hawaiian<br />
types.<br />
4. Forage production comparison of 10 varieties: This experiment was in its 6th year.<br />
The population showed 100% survival <strong>and</strong> good forage production. The peruvian types<br />
continued to give higher forage yield compared to salvador types. The total dry matter<br />
production was the maximum in silvi-4.<br />
at6 years of age (10,000 plantsjha density) while in the 2nd year it was only 0.97 t/h~. In<br />
case of L. dioersitolia, the maximum litter was observed in older plantation 1.25 t/ha (3 years<br />
at 5000 treesj ha density). The maximum frequency of litter fall in all the cases wae observed<br />
during the first forthight of October followed by the same period in December.<br />
Table 20 Growth characteristics of L. ditersitoliz: populations compared with L. leucocephsla<br />
(Silvi-4)<br />
Characters Silvi-4 L. dioersifolia<br />
Natural<br />
hybrids<br />
1. Length of rachis (em) 14.29±2.5 16.59±1.9 18.5±1.8<br />
2; Length of leaflet (em) 567±0.9 3.38±0.6 5.23±0.8<br />
3. No. of leaflet pairs 7A± 1.0 25.6 ±2.1 1O.6± 1.0<br />
4. No, of pinnae pairs 13.1±2.5 35.4±3·6 24.6±2.6<br />
5. Length of pinnae (ern) 1.14±0.2 0.31 ±0.5 0.55±0.1<br />
6. Breadth of pinnae (em) 0.335±0.1 0.O9±0.02 O.19±0.02<br />
7' Distance of cup from the 2.88±0.7 1.89 ±OA 4.07 ±0.5<br />
leaf base (ern)<br />
8. Leaf retention (Nos.) 35 16 30<br />
9. Date of of anthesis 2.3.84 16.4.84 20.3.84<br />
10. No. of flowers/head 95.3±10·3 61.8±6.5 135.6±11.5<br />
11. Flowering stopped on 20.4.84 10.5.84 28.4.84<br />
1.2 Autecologlcal studies on Albizia species <strong>and</strong> D. cinerea.<br />
(M. M. Roy)<br />
1. D. cinerea.<br />
(i) Studies on the effects of sowing depths in nursery beds have shown maximum emergence<br />
from 1 cm depth.<br />
( 143 )
(ii) Effect of different pH solutions (pH 3-12) on seed germination of D. cinerea indicated<br />
approximately similar germination in pH range of 5-10 with reduction towards less than 5<br />
or more than 10. Development of root hairs <strong>and</strong> secondary roots was earlier <strong>and</strong> becter in<br />
the pH range of 6-8.<br />
Albizie: species (A. amara, A. lebbek <strong>and</strong> procerav.<br />
(i) Effect of ascorbic acid on seed germination <strong>and</strong> seedling vigour on A. procera inr'icated<br />
stimulating effect in terms of seed germination <strong>and</strong> seedling vigour with 0.15% concentration.<br />
(ii) Seeds of A. procera germinated under a range of moisture stress imposed by D-Mannitol<br />
solutions. Germination retarded by increasing moisture stress. A. procera indicated its capacity<br />
to germinate upto the range of 5.0 atm. without any significant decrease.<br />
(iii) Effect of different pH solutions (pH 3-12) on seed germination of A. amara, A. lebbek<br />
<strong>and</strong> A. proccra was studied. Better germination was recorded in case of A, amara in the pH<br />
range of 3-10. Afterwards there was reduction in germination. Development of radicle <strong>and</strong><br />
root hairs was better in pH range of 7-6. Seed germination in A. lebbek was more or I-ss<br />
same throughout the pH range. However, the pH range of 8-10 was found to be better for<br />
r idicle growth.<br />
(iv) Effects of KN0 3 <strong>and</strong> Thiourea (0.1 %, 0.2°{, 0.3%, 0.4%, 0.5%, 1.0%, 2.0% <strong>and</strong> 3.0%)<br />
on seed germination of lebbek were studied. O.3%KN0 3 <strong>and</strong> 0.2% Thiourea were found to<br />
give increased germination. Thiourea was found more effective than KN0 3 .<br />
1.3 Auteeological studies on exotic multi-purpose shrubs [txee«,<br />
(P. S. Pathak)<br />
The project started during July <strong>1984</strong> <strong>and</strong> Sesbania sesban germplasm (12) obtained<br />
from Australia was studied along with one local check in detail<br />
Seed <strong>and</strong> its germination' The seeds varied in their colour from yellowish to dark<br />
green <strong>and</strong> brown with many intermediary shades. The variability was also associated with the<br />
seed germination whereby the yellowish, brown <strong>and</strong> dark green colour seeds of No.3. 5, 11<br />
<strong>and</strong> 13 gave 100% germination (table 21).<br />
No.8 <strong>and</strong> 10 gave more than 9% germination but No. L 2 <strong>and</strong> 12 gave very poor<br />
germination,<br />
144 )
Seedling growth characteristics e The seedling growth data recorded at 6 months of<br />
age (mble21) revealed that variety No.l1 <strong>and</strong> 6 recorded the maximum height growth but very<br />
poor basal diameter while No.8 <strong>and</strong> 12 gave higher diameter but medium height growth.<br />
No.1, 4 <strong>and</strong> 10 gave very poor growth. Varieties II <strong>and</strong> 9 produced maximum branching,<br />
while variety nos. I, 5,7,8, 10 <strong>and</strong> 12 did not produce any branch No. 9 appeared to give a<br />
bushy growth because branches intiatcd at a veay low level.<br />
Table 21 Seed colour, germiiation (%) <strong>and</strong> seedling growth characteristics of S. sesbat<br />
populations.<br />
0/<br />
10 Ht'i- Collar No. of Leaf Pa(r--l/b ~IoDM Flo~r=ing<br />
S. No. Seed colour ger<br />
ghi dia. bran- length<br />
leaf- of leaf<br />
of ratio JI1<br />
mll1a<br />
tion<br />
(em) lets leaf-<br />
(em) (cm) ches<br />
let<br />
2 3 4 5 6 7 8 11<br />
1. Greenish black 34 36.0 0.42<br />
1.83 7<br />
4<br />
25.5<br />
2. Yellowish brown 31.4 65.0 0.60<br />
5 3.0 10<br />
5<br />
19.4<br />
3. Yellowish brown 100 65.0 0.70<br />
3<br />
3.5<br />
8<br />
5<br />
19.3<br />
4. Yollowish-]<br />
Dark brown<br />
mixed<br />
65.747.0 0.40<br />
3<br />
3.1<br />
8<br />
5<br />
24.2<br />
5. Da'k green 100 92.0 0.50<br />
6. Greenish brown68.6 1000 0.26<br />
2.5<br />
2.6<br />
18<br />
14<br />
4<br />
5<br />
25.3<br />
28.0<br />
Val'.<br />
picra<br />
7. Yellowish brown74.5 72.0 0.60<br />
8. Dark brown 94.3 73.0 0.80<br />
3;,8<br />
2.6<br />
12<br />
10<br />
10<br />
7.5<br />
23.4<br />
27.2<br />
Val'.<br />
picta<br />
9. Greenish brown 91.4 68.0 0.60<br />
8<br />
4.0<br />
7<br />
6.2<br />
23.7<br />
10. Yellowish brown48.6 30.0 0.70<br />
6.6<br />
9<br />
10<br />
25.3<br />
11. Bro ..n<br />
12. Brown<br />
100 122.0 0.30<br />
34 65.0 1.20<br />
12<br />
4.6<br />
3.0<br />
11<br />
9<br />
10<br />
6.2<br />
27.0<br />
22.5<br />
Val'.<br />
bicolour<br />
13. Yellowish<br />
100 95.0 0.60<br />
2<br />
4.1<br />
12<br />
10<br />
22.7<br />
( 145
The largest leaf was observed in variety No, 11, 9 <strong>and</strong> 13 while the smallest in No. 1.<br />
The number of leaflet pairs were more in No, 5 <strong>and</strong> 6 <strong>and</strong> the minimum in No.1. The<br />
leaflets were very linear in 7, 10, 11 <strong>and</strong> 13 while in 1, 2. 3, 4, 5 <strong>and</strong> 6 it was oval. Wi'hin<br />
this period No.5 <strong>and</strong> 7 produced yellowish flowers where back of st<strong>and</strong>ard was dotted with<br />
purple. No. 11 gave maroon colour of st<strong>and</strong>ard <strong>and</strong> the tip of keel.<br />
The leaf samples showed the maximum dry matter in No.6 followed by No.8 <strong>and</strong> the<br />
minimum in No.2 <strong>and</strong> 3. The metroglyph an lysis of leaf <strong>and</strong> other plant growth characters<br />
indicated that varieties 1, 6, 5 <strong>and</strong> 4 were of low potentiality <strong>and</strong> Nos 2, 7, 8 <strong>and</strong> 10 of<br />
higher potentiality The index score of 9 arid 12 has given maximum value compared to all<br />
others. These were still showing peak vegetative growth perforrnence,<br />
Addition of woody new materials:<br />
Seeds of Calli<strong>and</strong>ra calothyrsus were obtained from nitrogen Fixing Tree Association<br />
Hawaii. Twenty three new woody materials belonging to Mimosoideae pipilionoideae,<br />
Caesalpinoideae, Bignoniaceae, Simarubiaceae <strong>and</strong> Sterculiaceae have been added from Commonwealth<br />
Forestry Institute, Oxford for their detailed autecological studies So as to identify<br />
more promsing materials for the agroforestry systems aud evolve the management principles<br />
for such species.<br />
ASP-2. EVOLVING SiLVIPASTORAL SYSTEMS FOR MARGINAL AND SUBMA<br />
GINAL WASTELAND AND ENVIRONMENTS<br />
2.1 Silvipastoral s tudies 011 fodder cum fuel trees.<br />
(R. Dtb Roy <strong>and</strong> S. K. Gupta)<br />
In a long term experiment on the growth <strong>and</strong> production of Acacia tort ilis under different<br />
spacings <strong>and</strong> the association of two Cenchrus pastures, growth parame ters like height,<br />
coller diameter (0. D.) <strong>and</strong> diameter at breast height (dbh) were recorded <strong>and</strong> all the trees<br />
of oue replication were harvested for biomass production attributes. Forage production of<br />
the pasture under trees was also recorded,<br />
Height growth; The variation height growth amongst the treatments was not found<br />
to be significant (table 22). However, the maximum height growth (9.47 ern) at 4x6 m<br />
spacing in association withSCenchrus ciliaris followed by the same tree spacing without grass<br />
reseed.ng. The height has more or less even out in the course of long period of growth. The<br />
average tree growth of the felled trees was slightly higher than the average tree growth of the<br />
whole plo t, -<br />
14G
Growth in collar diameter : The maximum C. D. growth of 25.4 em was recorded at 4 x 6m<br />
spacing' when grown in association e. eil iaris pasture followed by 24.00 em in the same<br />
spacing but without grass reseeding <strong>and</strong> least (16.1 ern) under 4x4 m spacing without<br />
reseeding, The differences amongst different treatments were found to be significant. The C.D,<br />
growth was higher with grass reseeding compared to control (no reseeding) <strong>and</strong> was higher<br />
with e. eiliaris pasture (23.0 cm) compared to' C. set igerus (20.9 em).<br />
Growth in diameter at breast height :-Similar to the C. D. growth, the dbh was maximum<br />
(27.9 ern) at 4x6 m spacing <strong>and</strong> in association withe. eiliaris pasture followed by the no<br />
grass control at same spacing (25.5 ern) <strong>and</strong> the least (15.6 cm) under narrower spacing<br />
without reseeding. Dbh growth in general was higher with wide spacing <strong>and</strong> also in association<br />
with e. eiliaris pasture. Growth difference in dbh were highly significant.<br />
Biomass production :<br />
(a) Main bole: The maximum air dry (aerial) production (245.9 kg) of the main bole was<br />
recorded at 4x6m spacing in association with e. ciliaris pasture followed by the same spacing,<br />
but in association with e. set igerus pasture (82.1 kg) <strong>and</strong> the least (36.4 kg) at 4x4m spacing<br />
in reseeding (control). Biomass production in general was higher under wider tree spacing<br />
compared to narrower one <strong>and</strong> in association with pasture compared to control. Within the<br />
two pastures biomass production of the main bole was higher in association with e. ciliaris<br />
pasture.<br />
(b) Biomass production [rom branches: It was quite interesting to note that the biomass<br />
production from the branches in general was higher compared to main bole biomass <strong>and</strong> in<br />
some treatments it was more than double. The maximum branch biomass of 245.9 kg was<br />
recorded at 4 X 6m spacing <strong>and</strong> in association with e. ci/iaris pasture followed by 144.7 kg<br />
at same spacing but in association with e. set igerus pasture <strong>and</strong> the least (59.13 kg) under<br />
4 X 4m spacing without reseeding.<br />
Biomass production of branches showed the same trend as those of the main bole<br />
except when planted at wider spacing without grasses which recorded lower branch biomass<br />
than the bole.<br />
Total aerial biomass production: The maximum total aerial biomass of 363.6 kg was recorded<br />
under the treatment of 4x6m in association with e. eiliaris pasture followed by the same<br />
spacing treatment but in association with e. set igerus pasture (226.8 kg) <strong>and</strong> least 98.8 kg<br />
under narrower spacing with no reseeding. Total biomass production was higher under wider<br />
spacing with pasture compared to the control. The pasture biomass was higher with e. ciliaris<br />
147
Table 22.<br />
Growth parameters <strong>and</strong> biomass production of A. tortilis under different silvlpastoral treatments.<br />
Treatments Ht. CD. DBH Production/tree (kg) Total Production (t/ha) Yield (t/ha)<br />
(m) (em) (em) Bole Branches Bole+Br. taking 80%<br />
survival<br />
T 2S1GO<br />
8.16 16.09 15.57 36.39 61.78 98.17 49.4 3.799<br />
T 2S1G1<br />
8.05 18.21 19.03 40.45 71.83 112.28 56.1 4.318<br />
T 2S1Gg<br />
8.88 20.15 25.53 64.85 136.58 201.44 100.7 7.747<br />
..-.<br />
00<br />
'
compared to C. set igerus. Total biomass production (dry matter jha) varied from 49.4 t/ha<br />
under narrower tree spacing without reseeding to as high as 121.1 t/ha under the wider tree<br />
spacing in association with C. ciliaris pasture. The mean annual increment (MAl) worked<br />
out to be 3.8 t/ha/year under control with narrower spacing to 9.3 t/ha/year under wider<br />
spacing <strong>and</strong> in association with C. ciliaris, Thus the biomass production of A. tort ilis<br />
improved with C. ciliaris than the no pasture control.<br />
The maximum dry forage production of 3.84 t/ha was recorded from C. ciliaris-:<br />
Stylosant hes pasture at 4 X 6m spacing <strong>and</strong> minimum 3.22 t/ha from C. setigerus-Stylosanthes<br />
pasture at narrower tree spacing (table 23).<br />
Table 23<br />
Fresh <strong>and</strong> d rv forage production of Cenchrus ciliaris <strong>and</strong> Cenchrus set igerus under<br />
silvipastoral studies.<br />
Treatments<br />
Av. yield yield (green)<br />
(kg/plot)<br />
. (q/ha)<br />
yield (dry)<br />
(q/ha)<br />
2.52 63.00<br />
2.32 58.-00<br />
2.65 66.25<br />
2.37 59.25<br />
36.54<br />
32.19<br />
38.42<br />
35.55<br />
2.14 53.50<br />
2.66 66.50<br />
2.10 52.50<br />
2.11 52.75<br />
~<br />
33.11<br />
39.90<br />
32.55<br />
31.65<br />
Forage production in general was higher with wider tree<br />
C, ciliaris-Stylo pasture compared to C. setigerus-Stylo pasture.<br />
spacing <strong>and</strong> also with<br />
~, It would be interesting to note that under the open canopy the highest production was<br />
3.99 t/ha in C. set i gerus-Stylo pasture followed by 3.32 t/ha in C. ciliaris-SIylo pasture<br />
1'49 )
<strong>and</strong> lowest 3.17 tlha under C. setigerus-Stylo pasture. Under the open canopy local grasses<br />
like H et eropogon contortus <strong>and</strong> annual Arlstida sp. invaded the pasture.<br />
2.2 Studies on the establishment <strong>and</strong> growth of plantation specks under various<br />
sj lvlpastoral combinations.<br />
(R. Deb Roy <strong>and</strong> S. K. Gupta)<br />
The studies were continued on various growth parameters viz, height, collar diameter<br />
(C D.) <strong>and</strong> d ameter at breast height (dbh) of H ardwickia binata <strong>and</strong> Albizia amara in<br />
asseciation with grass-legume mixtures to find out suitable tree-grass-Iegume for optimum<br />
production <strong>and</strong> stock carrying capacity. Pasture. production studies under the canopy of both<br />
the tree species were also carried out.<br />
Height growth :--Growth in height of A. amara <strong>and</strong> H. binat a under different pastures <strong>and</strong><br />
spacing did not show much variation (table 24). Height growth was maximum 6.53 min<br />
treatment without pasture followed by 6.32 m in Chrysopogon-Sehima pasture <strong>and</strong> 6.09 m in<br />
C. ciliaris pasture.<br />
Collar diameter growth :-Collar diameter growth in general was higher in A, amara compared<br />
to H. binata. In A. amara maximum collar diameter (19.9 cm) was observed at 4x6m<br />
spacing when grown in association with C. ciliaris followed by 18.9 ern at narrower spacing<br />
without pasture <strong>and</strong> least in wider spacing without pasture. In case of H. bineta maximum<br />
C. D. growth of 17. '3 cm was recorded ot wider spacing in association with Chrysopogon<br />
Schima pasture. This was followed by 16.5 em at wider spacing but in association with<br />
C. ciliaris pasture. C. D. growth in general was higher with wider spacing in case of H. binata<br />
except for the control.<br />
Cr iwth in Dbh :--Dbh growth in general was higher in A. amara compared to H. binata<br />
This wuld be due to branching habit of the former which is a typical characteristic of the<br />
species, Dbh growth was.also higher with wider spacing compared to the narrower ones,<br />
In H. binata maximum dbh grow.h of 17.3 ern was recorded in 4 x 6m spacing in association<br />
with Chrysopogon-Sehima pasture followed by 16.5 cm in the same spacing treatment but in<br />
association with C. ciliaris pasture <strong>and</strong> least 15.1 em at narrower spacing with control (no<br />
pasture). In case of A. amara the maximum dbh growth of 20 ern was observed in case of<br />
wider spacing <strong>and</strong> in association with C. ciliaris pasture followed by 18.9 em in narrower<br />
spacing but with control <strong>and</strong> least (17.0 em) in association with Chrysopcgon-Sehima<br />
pasture'<br />
( 1:0 )
Pasture production :--The dry forage production varied from 1.65 to 4.05 t/ha of which the<br />
pasture legume tStyiosanthes hamata) contributed 25-35 per cent. Forage production was<br />
higher under wider tree spacing <strong>and</strong> in association with Chrysopogon-Sehima pasture,<br />
Table 24 : Growth in height, C. D. <strong>and</strong><br />
various treatments.<br />
Dbh of Albizia amara <strong>and</strong> Hardwickia binata under<br />
Treatment Height (rn) C. D. (ern) Dbh (ern)<br />
H. binata A. amara H. binata A. amara H. binata A. amara<br />
1. C. cifi aris pasture 6.09 6.63 15.44 19'14 12.21 30.27<br />
2. Chrysopogon-Sehima 6.32 5.58 16.26 17.26 12.51 24.75<br />
pasture<br />
3. Control (no pasture) 6.53 5.92 15.83 17.98 12.23 23.94<br />
2.3 Increasing production potential of wastel<strong>and</strong>s through sllvlpastoral system.<br />
(R. Deb Roy, B. D. Patil, P. S. Pathak <strong>and</strong> S. K. Gupta)<br />
The studies revealed that some of the perennial grasses established as early as 1977<br />
were still reasonably productive. Chrysopogon [uluus showed more persistant growth <strong>and</strong><br />
production compared to either Cenchrus ciliaris or Sehima neroosum. Cenchrus ciliaris<br />
pasture could easily be established even under a 7-8 year old Albizia procera plantation.<br />
Silvipastoral system I : Dichrostachys cinerea was established during 1981 in an earlier established<br />
Chrysopogon-Cenchrus pasture <strong>and</strong> continued to exhibit 80 per cent survival.<br />
Chrysopogon [ulous <strong>and</strong> C. ciliaris pastures recorded dry forage production of 5.2 <strong>and</strong> 4.3<br />
t/ha respectively in association with Dichrostachys cinerea. The growth of Chrysopogon was<br />
more vigorous ClS compared to that of C. ciliaris, Dichrostachys cinerea recorded an average<br />
height <strong>and</strong> collar diame .er (CD) growth of 2.90 m <strong>and</strong> 4.87 ern respectively. The maximum<br />
height <strong>and</strong> C.D. were 3.50 m <strong>and</strong> 3.8 em respectively in association with Chrysopogon-Cenchrus<br />
pasture.<br />
Silvipastoral system II :--Leucaena leucocephala (K8) introduce during 1980-81 in an<br />
established pasture showed good establishment, exhibiting mean height, C. D. <strong>and</strong> dbh of<br />
151
6.50 m, 9.59 em <strong>and</strong> 6.78 em respectively. The maximum height, C. D. <strong>and</strong> dbh recorded<br />
were 9.50 m, 14.7 em <strong>and</strong> 15.1 em respectively in association with Cbrysopogon-Cenchrus<br />
pasture. Similar to system I, the C. tulous pasture exhibited higher dry forage production<br />
(6.53 t/ha) compared to C. ciliaris (4.78 t/ha) pasture under the canopy of L. leucocephala.<br />
Silvipastoral system III :-Albizia lebbek n:cored an average height, CD <strong>and</strong> dbh growth<br />
of 7.53 m, 17.4 cm <strong>and</strong> 15.5 em respectively in association with Chrysopogon Ful ous, C.<br />
setigerus pasture which recorded dry forage production of 4.17 t <strong>and</strong> 3.25 t/ha respec.ively.<br />
Silvipastoral system IV :--In this system A. lebbek was grown in association \I ith Scl.ima<br />
nertosum <strong>and</strong> C. ciliarls pastures. They recorded forage production of 3.76 <strong>and</strong> 4.21 t/ha<br />
respectively. The pasture had a mixture of Stylosanthes scabra <strong>and</strong> S. humara respectively.<br />
A. lebbek recorded an avenge height, CD <strong>and</strong> dbh growth of 8.35 ill, 20.37 em <strong>and</strong> 17.23 em<br />
respectively.<br />
Silvipastoral system V :-In this system, pasture production of C. ciliaris was affected by<br />
the intrusion of local perennial grasses like Heteropogon contortus, Eremopogon Fooeolatus<br />
<strong>and</strong> annuals like Aristida probably because of the gaps provided by initial annual legumes<br />
introduced along with the Cenchrus grass. The pasture production thus, was much lower<br />
(~.36 t/ha) under the canopy of Albizia procera. The tree exhibited an average height, CD <strong>and</strong><br />
dbh growth of 9.80 m, 26.2 em <strong>and</strong> 27.3 em respectively. The maximum height, CD <strong>and</strong><br />
dbh were 14.6 m, 38.2 em <strong>and</strong> 29.4 em respectively.<br />
Silvipastoral VI :--In this system, Prosopis julitlor« erect type (Israeli var.), grown in association<br />
with C. ciliaris recorded an average height, CD <strong>and</strong> dbh growth of 4.95 m, 8.99 ern<br />
<strong>and</strong> 9.42 em respectively Pithecellobium dulce however, recorded height, CD <strong>and</strong> dbh growth<br />
of 4.95 m, 9.85 em <strong>and</strong> 10.37 em respectively. The forage production of 3.41 <strong>and</strong> 3.98 t/ha<br />
were recorded in Cenchrus <strong>and</strong> Chrysopogon pastures respectively.<br />
Acacia nilotica (sub sp. indica) exhibited poor performance in the skeletal soil<br />
compared to A. tortilis whereas in filled soil <strong>and</strong> under crop with partial irrigation exhibited<br />
much faster growth. In later situation, A. nilotica recorded an aVe rage height, CD <strong>and</strong> dbh<br />
growth of 9.2 m, 19'54 em <strong>and</strong> 22.23 em respectively,<br />
Silvipastoral system VIr:-It was qui te interesting to note that under the full grown tree of<br />
A. lebbek it was possible to grow L. lcucocephal« as under crop of fodder without lopping<br />
whereas the grass growth of Cenchrus was poor. A. Iebbek exhibited an average height, CD<br />
<strong>and</strong> dbh growth much better than that of system IH <strong>and</strong> IV described earlier. The maximum<br />
height, CD <strong>and</strong> dbh were 13.0 m, 31.5 em <strong>and</strong> 24.8 em respectively.<br />
152 )
Natural system : The original undisturbed natural system comprised of perennial<br />
grasses mostly Heteropogon & annuals mostly Aristida with occasional Sehima nertosum with<br />
low productivity. The average production was 1.87 tjha. There was hardly any canopy,<br />
with one or two trees of Azadircaht indica.<br />
2.4 Silvipastoral studies on D. cinerea <strong>and</strong> Albizia species.<br />
(M. M. Roy)<br />
1. D. cinerea<br />
(a) Mortality of plants over a period of 3.5 years was around 12.5~1g. Various treatments<br />
did not affect the mortality parcentage,<br />
(b) Average growth of plants in 3.5 year period was rated as medium. Flowering<br />
initiated in this period. Average height <strong>and</strong> collar diameter attained were 219 <strong>and</strong><br />
4.2 em respectively.<br />
(c) Average dry forage production during February, <strong>1984</strong> <strong>and</strong> November <strong>1984</strong> are<br />
given in table 25.<br />
(d)<br />
Performance of C. ciliarls among the grasses <strong>and</strong> S. hamata among the legumes<br />
was better in terms of establishment <strong>and</strong> yield. Among grass-legume mixture,<br />
C. ciliaris-s-S, hamata cornbi-ation was better than the other ones.<br />
2. Half lopping treatment at Six-monthly inter val continued to give consistent production<br />
from regenerated shoots. The ratio of fodder to fuel was found to be increased.<br />
3. Regeneration from the cut part of the stem (on complete harvesting) was not encouraging<br />
in the 2nd year also. However, such mother plants exhibited more number of<br />
healthy plantlets around them. This is an indication of the ability of the plant to<br />
exp<strong>and</strong> horizontally even if the main plant was destroyed.<br />
lI-Albizia spp. (A. amara, A. lebbek, A. procera)<br />
1. The data recorded in December <strong>1984</strong> (15 yr. old) is given in table 26.<br />
2. Lopping annually Seems to be feasible, A verage fodder <strong>and</strong> fuel production, from 6<br />
year old A. procera A. lebbek <strong>and</strong> 10 year old A. amara may be expected to be- 30.82 kg<br />
153 _ )
Table 25<br />
Forage production from D. cinerea, grass <strong>and</strong> legumes.<br />
Treatment<br />
Dry forage production (t/ha)<br />
Feb. <strong>1984</strong> N(')v. <strong>1984</strong><br />
D+C. C.<br />
JD+C. D:<br />
1.86 287<br />
).03 1.18<br />
].80 4.26<br />
1.69 3.07<br />
D-trC~ fi.+St·..<br />
D+C: f.+Sii.<br />
D+5L<br />
D+SI.<br />
~veralrmears<br />
SEm::!t.<br />
CD rot .5%<br />
Cpat 1%<br />
1.08 263<br />
0.83 2.32<br />
1.35 2.64<br />
0.59 0.98<br />
1.28 2.49<br />
0.17 0.37<br />
(l.40 0188<br />
0.59 1.29<br />
_._"--_........_"""""'----------------------------<br />
D=D. cinerea: C.C=C. ciliaris;<br />
C. f.=C Iulous; St. =S. hamatu; Si.=M. atropurpureum,<br />
(16.72 kg dry) <strong>and</strong> 24.6 kg (14.66 kg dry) per tree; 8.51 kg (4.0 kg dry) <strong>and</strong> 8.61<br />
(5.08 kg dry) per tree; 25.3 kg (12.92 kg dry) <strong>and</strong> 41.2 kg (23.66 kg dry) per tree<br />
respectively-<br />
( 154 )
Table 26<br />
Growth <strong>and</strong> forage production in Albizia species.·<br />
Survival Plant growth Dry weight<br />
Species (%) Av. height Av. call ar diameter of natural grass<br />
(em) (em), , (t/ha).<br />
A. amara 68.2 142 1.65 5.20<br />
A. lebbek 65.1 118 1.42 4.92<br />
A. procera 60.2 87 1.38 5.16<br />
Mean 64.5 115.67 1.48 5.12<br />
SD + 3.29 22.51 0.12 0.15<br />
2.5 Silvipastrol studies on Delbergia sissoo, Hardwickia billata.<strong>and</strong> Acacia species.<br />
(S. K. Gupta, r. S. Pathak <strong>and</strong> R. Deb Roy)<br />
1. Acacia species.<br />
The experiment planted cn calcareous 1wastel<strong>and</strong>s with two species of Acacia viz.,<br />
A. tortilis <strong>and</strong> A. nilotica at 3 x 2 m spacing in alternate line versus alternate plant management<br />
system indicated identical response to their arrangements in terms of height <strong>and</strong> diameter<br />
growth in the first year with greater height <strong>and</strong> diameter growth for A. nilotica under<br />
both the situations. In the second year, theA. tortilis continued to give uniform growth<br />
under both the systems ef plant arrangement but A. nilotica exhibited a vide difference in its<br />
growth rate under the two plant arrangement system. Under alternate arrangement A.<br />
nilotica gave 6.2 em more height <strong>and</strong> 0.7 ern more diameter compared to alternate line<br />
arrangements. However, this year also, A. nilotica continued to exhibit more height diameter.<br />
When we compare the diameter growth of these. two species A. tortilis gave<br />
more than 2 times diameter growth than the first year while A. ! nilotica gave only 1.4 times.<br />
2. Hardwicki« binata <strong>and</strong> Dalbergia sissoo,<br />
The study on Hardwickie binat a <strong>and</strong> Dalbergia sissoo under moist, marginal wastel<strong>and</strong>s<br />
gave very poor growth under mono <strong>and</strong> mixed cultures. .N. binata gave comparatively higher<br />
155 )
survival on dry sides while D. sissoo gave it OD the moist sides. The growth parameters did not<br />
show any appreciable difference between the mono <strong>and</strong> mixed culture. However. H. binata<br />
gave higher growth in association with D. sissoo which also got benefitted by its associates.<br />
ASP-3 AGROFORESTRY STUDIES FOR SELECTION OF<br />
CIES FOR OPTIMUM PRODUCTION<br />
COMPATIBLE TREE SPE<br />
1.3 Agroforestry studies.<br />
(P. S. Pathak)<br />
(a) Effect of row orientation of leucaena leucocephla on the production of forage, fuel <strong>and</strong><br />
grain.<br />
Growth performance of wheat crop: The tillering of plants was studied under all<br />
the treatments. It was found that the maximum tillers in all the direction treatments were at<br />
the P 6oN90 dose with its peak 136Jm in N-S direction followed by NE-SE <strong>and</strong> E-W. In no<br />
tree treatments the peak was in NE-SW orientation followed by N-S. The crop height at<br />
mau.rity again showed increase with the increasing nitrogen doses with its peak 114.3 cm in<br />
N-S orientation. In the E-W orientation the variation between different nitrogen doses<br />
were very small <strong>and</strong> it ranged between 104.7 to 109.7 cm. Height in all the treatments was<br />
lowest under NW-ES direction. In the without tree sets the height was low compared to<br />
tree treatments. It was maximum in N-S <strong>and</strong> NW-ES orientation. The length of ear heads<br />
was more in without tree treatments compared to with tree ones. The peak 12 cm was in<br />
NE-SW orientation. But in the with tree treatments the peak was in E-W orientation.<br />
Production of wheat crop: The peak production under both the sets viz., with <strong>and</strong><br />
without tree was in NW ·ES orientation at P 6oN90 dose followed by N-S orientation without<br />
tree <strong>and</strong> E-W orientation with tree. The yield variability was found to be statistically significant<br />
whereby the line orientation <strong>and</strong> fertilizer treatments influenced the yield significantly.<br />
Forage production from Leucacna :<br />
Duri 19 the year Leucaena was pollarded 5 times <strong>and</strong> the total forage produced, ranged<br />
pet ween 5.8 to 9.4 tlha (dry) obtained in E-W<strong>and</strong> NW-ES orientations respectively. Half<br />
the population of trees was harvested to produce the tree density of 5000 trees/ha. The<br />
thinning produced dry firewood from 14-16.75 tJha obtained in E-·W <strong>and</strong> N-S row orientations<br />
respectively. The variations were statistically significant.<br />
Production of Cowpea <strong>and</strong> Sorghum: At the 4 fOW orientation of the alleys the trees<br />
156 )
were maintained at 2 densities viz" 5000 <strong>and</strong> 10000 tree/ha. The production in the plots<br />
without trees was more compared to that with trees with peak for Cowpea at N-S <strong>and</strong> sorghum<br />
at NE-SW orientations' The mirirnum in both the cases was in reverse order.<br />
At 5000 rrees/ha density sorghum g~ve peak production 2.34 t/ha in N-S orientation<br />
followed by NE-SW <strong>and</strong> cowpea also followed similar pattern with lower production. At<br />
10000 treesj ha density peak for both the crops was in NE-SW orientation followed by E-W<br />
orientation. The differences were found to be statistically significant.<br />
(b)<br />
Year round perennial forage based agroforestry.<br />
Durirg the year Leucaena was pollarded 4 times, guinea grass W1S harvested 7 times<br />
<strong>and</strong> berseern in the guinea grass inter rows 3 times. The forage produced during the year<br />
was 13.88, 57.19 <strong>and</strong> 37.23 t/ha respectively. During every harvest, the legume component<br />
addition in the forage improved, the quality besides adding to its per ha quantum by trapping<br />
solar energy at 2 canopy layers.<br />
(c)<br />
Leucsenz leaf manuring <strong>and</strong> yield of Oats.<br />
The experiment with Alley cropping was conducted to find out the effect of harvested<br />
tree leaves on the production of the following crop in the Alleys. In an earlier<br />
experiment it was found that the cultivation of Leuceenx improved soil fertility.<br />
The experiment hvd 5 treatment combinations viz., control, 30 kg N /ha as<br />
urea, 30 kg N /ha as dry leaf basal, 30 +30 kg/ha as dry leaf basal <strong>and</strong> top dress <strong>and</strong> 60+30<br />
kg/ha as basal <strong>and</strong> top dress The 2 cuttings of Oats were taken at 100 <strong>and</strong> 170 days after<br />
the sowing when the forage had a dry matter of 17.5 <strong>and</strong> 41.7%,<br />
The results indicated (table 27) a significant improvement in the forage yield with a<br />
highe. proportion in the lInd cutting. The differences between 30 kg N as urea <strong>and</strong> leaf<br />
were not statistically significant yet at the same dose, 5% more yield was obtained with leaf<br />
rnanurng. The other increasing doses of nitrogen as leaf equivalent gave the increment up to<br />
178 2%. where the nitrogen equivalence compared to 30 kg N as urea (100) was 153.1 indicating<br />
the use of leaf either as basal or top dress in a crop production system in agrof'oresrry.<br />
After the crop harvest the soil had a pH variation of 7.49, 7.52, 7.38, 7.43 <strong>and</strong> 7.42 respectively<br />
indicating not much fluctuation. The available nitrogen was mere in the plots applied<br />
wiih higher doses of leaf manure compared to the dose of urea or the control but with minor<br />
differences (0009,0.01, 0.011, .0011, 0.012% respectively),<br />
157 )
Table 27 Dry forage yield of Oats (kg/m 2 ) at various leaf manure doses <strong>and</strong> its nitrogen<br />
equivalence.<br />
Treatment<br />
1st lInd Total<br />
cut cut yield<br />
yield yield<br />
% Irnpro- Nitrogen<br />
vernent equivelence<br />
1. Control<br />
2. Nitrogen 30 kg/ha<br />
2 3 4<br />
0.25 0.30 055<br />
±.03 ±.02 ±.05<br />
0.32 0.32 0.64<br />
±.01 ±.03 ::1:- 03<br />
5 6<br />
100 0<br />
116.4 100<br />
3.. Leaf basal dose<br />
0.31 0.36 0.67<br />
±.03 ±.04 ±.O6<br />
12l.8<br />
104.7<br />
4. Leaf split-I<br />
0·39 0.40 0.79<br />
±.03 ±.06 ±.05<br />
143.6<br />
123.6<br />
4. Leaf split-II<br />
0.46 0.52 0.98<br />
±.03 ±.04 ±.08<br />
178.1<br />
153.1<br />
SEm ±<br />
0.018 0.015<br />
C.D. ±<br />
0.054 0.047<br />
ASP-5 EVOLUTION OF NEW GENOTYPES!IDEOTYPES OF VARIOUS TOP FEED<br />
CUM-ENERGY PRODUCING SPECIES.<br />
5.1 Study of genetic architecture <strong>and</strong> effect of mutagens in Leuczena leucocepltala in<br />
relation to production of forags <strong>and</strong> fuel,<br />
(V. K. Gupta)<br />
1. Study of genetic variability, correlation <strong>and</strong> path coefficient analysis for forage <strong>and</strong> fuelwood<br />
yields <strong>and</strong> its components.<br />
( 158 )
path coefficient analysis of fodder <strong>and</strong> fuelwood yield per plant <strong>and</strong> other attributes<br />
were worked out. Estimates of phenotypic <strong>and</strong> genotypic correlation coefficients of 14 yield<br />
contributing characters VIZ., plant height, collar diameter, length of leaf, no. of pinnacle per<br />
leaf, length of middle pinna, no. of leaflets per pinna, length of leaflet, width of leaflet, 100<br />
green leaves weight, no. of leaves per plant, pod length, no. of seeds per pod, 100-seed weight<br />
<strong>and</strong> seed yield, with fuelwood <strong>and</strong> fodder yield per plant showed that plant height, collar·<br />
diameter <strong>and</strong> no. of leaves per plant had significant positive association with fodder as well<br />
as fuelwood yield. Therefore, ani) these characters were used for path analysis of fodder<br />
<strong>and</strong> fuel wood yield.<br />
Results revealed that no. of leaves per plant had high magnitude of direct effect on fodder<br />
yield. Plant height <strong>and</strong> collar diameter which had significant association with fodder yield<br />
had weak negative <strong>and</strong> positive direct effects with fodder yield, respectively, In both the<br />
cases, correlation was contributed mainly by indirect effects viz., no. of leaves per plant with<br />
minor contribution via collar diameter in case of plant height <strong>and</strong> fodder yield. Indirect<br />
effect viz., no. of leaves perplant also had high amount of contribution to genetic correlation<br />
coefficient between fuelwood yield <strong>and</strong> fodder yield per plant..Therefore, emphasis should<br />
be given on the attributes like no. of leaves per plant for high fodder yield in sub-babul.<br />
The estimates of residual effect being low indicated that important fodder .yield contributing<br />
'raits were included in the present study. ..,<br />
Path coefficient analysis of fuclwood yield <strong>and</strong> other traits revealed that direct effect<br />
of fodder yield was highest followed by no. of leaves per plant <strong>and</strong> 'plant height. Collar<br />
diameter which had positive <strong>and</strong> highly significant correlation with fuelwood yield exhibited<br />
negligible effect. In this case maximum contribution was through indirect effect via fodder<br />
yield per plant followed by no. of leaves per plant <strong>and</strong> plant height. Indirect effect via no.<br />
of leaves per plant <strong>and</strong> plant height also played an important role besides direct effect in<br />
making high value of genetic correlation coefficient between fodder yield <strong>and</strong> fuelwood yield.<br />
Thus, it e.ppeared that fodder yield, no. of leaves per plant <strong>and</strong> plant height are important<br />
attributes for the fue1wood Yield. Magnitude of residual effect was also low in the path<br />
analysis of fuelwood yield <strong>and</strong> other yield contributing traits.<br />
2. Genetic analysis of forage <strong>and</strong> fuel wood yield aud their components in L. leucocephala,<br />
Observations were taken on coppiced plants of 15 crosses originated from<br />
6 Y.6 diallel, for fodder <strong>and</strong> fuelwood yield per plant. Estimates of hybrid<br />
vigour over mid parent <strong>and</strong> better parent. were worked ou~ in coPpi9~d . yields.<br />
Duration of coppice growth was 8 months. Among the parents, fodder yield <strong>and</strong> fuelwood<br />
yields ranged from-O.346 ([GFRI 29-5) to 2,091 (<strong>IGFRI</strong> 18-4) kg dry matter per plant <strong>and</strong><br />
159
2.100 (<strong>IGFRI</strong> 29.5) to 8.404 (<strong>IGFRI</strong> 18-4) kg dry matter respectively. High yields of fodder<br />
<strong>and</strong> fuelwood were observed in parents, <strong>IGFRI</strong> 18-4, <strong>IGFRI</strong> 24-1, <strong>IGFRI</strong> 25-3. Among the<br />
hybrids <strong>IGFRI</strong> 14x<strong>IGFRI</strong> 18 had maximum dry matter of 9'936 kg <strong>and</strong> 2 354 kg of fuelwood<br />
<strong>and</strong> fodder per plant respectively followed by IGFRl 14 x<strong>IGFRI</strong> 24, IGFRr 24 x<br />
<strong>IGFRI</strong> 25 <strong>and</strong> <strong>IGFRI</strong> 14 X <strong>IGFRI</strong> 25 for fuelwood yield per plant. Positive hybrid vigour<br />
over better parent was observed for <strong>IGFRI</strong> 7 X<strong>IGFRI</strong> 14 (21.87%). <strong>IGFRI</strong> 7 x <strong>IGFRI</strong> 24<br />
(35.58%),<strong>IGFRI</strong> 14xlGFRI 18 (12.56%) <strong>and</strong> IGFRl 14XIGFR[ 24 (18.02%) crosses for<br />
fodder yield. For fuelwood yield, positive <strong>and</strong> signifcant hybrid vigour was observed for<br />
<strong>IGFRI</strong> 14xIGERI 18 (18.23%), IGFRl14x<strong>IGFRI</strong> 24 (19.51%) <strong>and</strong> <strong>IGFRI</strong> 14x[GFRI 25<br />
(19.46%> crosses,<br />
3. Study of genetic parameters <strong>and</strong> selection of desirable plants in F 2 generation of<br />
L. leucocephala.<br />
F 2<br />
populations of 15 crosses were raised in July 1982 with their six parents <strong>and</strong> two<br />
checks (K8 <strong>and</strong> K 28). This year, two <strong>and</strong> half year old trees were harvested <strong>and</strong> observations<br />
were taken on fuelwood yield, fodder yield, plant height, collar diameter, diameter at breast<br />
height <strong>and</strong> reaction to disease. Out of IS progenies. performance of progenies of <strong>IGFRI</strong> 7 X<br />
<strong>IGFRI</strong> 14, <strong>IGFRI</strong> 7x<strong>IGFRI</strong> 18, <strong>IGFRI</strong> 7xlGFRI 24, <strong>IGFRI</strong> 14xIGFR118, <strong>IGFRI</strong> 14x<br />
<strong>IGFRI</strong> 24, <strong>IGFRI</strong> 18 x<strong>IGFRI</strong> 24 <strong>and</strong> <strong>IGFRI</strong> 18X<strong>IGFRI</strong> 25 crosses was good. Seventy<br />
eight plants were selected for raising F 3 generations in these crosses. Progenies of <strong>IGFRI</strong> 14<br />
xIGFRl 24 <strong>and</strong> <strong>IGFRI</strong> 14x<strong>IGFRI</strong> 18 were outst<strong>and</strong>ing for the above ground biomass,<br />
4. Effect of gamma rays on forage <strong>and</strong> f'uelwood yielr! <strong>and</strong> their components in L.<br />
leucocephala.<br />
M 2 generation of No.8 <strong>and</strong> No.9 (peru type) strains of L. leucocephala with control,<br />
40, ,60, 80 <strong>and</strong> 100 kr in n08 <strong>and</strong> control, 40,60, 80, 100 <strong>and</strong> 120 kr in No.9 were planted<br />
in tpe year July 1981. Plants were harvested at the age of 3.5 years, observations were taken<br />
,Q!1 collar diameter, diameter at breast height. plant height, forage yield <strong>and</strong> fuelwood yield.<br />
NQt a single mutant was observed during experimental period. There W[1.S no significant variation<br />
among the doses in both the strains indicating that gamma rays did not have significant<br />
etrect on the growth of L. leucocephola <strong>and</strong> creation of genetic variability. However, trend in<br />
No.8 was in increasing direction with the doses while in No.9, it was in decreasing direction<br />
for collar diameter. diameter at breast height, plant height, edible dry matter, woody dry<br />
matter. Percentage of pod bearing trees reduced from 100 to 75 rn NO.8 <strong>and</strong> 80.64 to 54.05<br />
in No.9 from control to highest dose of gamma rays.<br />
5. Evaluation of the performance of hybrids <strong>and</strong> study of hybrid vigour.<br />
Twenty four hybrids <strong>and</strong> eight parents were planted in field in July 83 in two environ-<br />
( 160 )
ments Observations were not recorded in experiment running in unirrigated condition due to<br />
fire accident. In irrigated experiment, data were recorded on collar diameter, diameter at<br />
breast height, plant height <strong>and</strong> disease reaction. Among : the patents, <strong>IGFRI</strong> 11-4 was<br />
outst<strong>and</strong>ing for collar diameter (18.10 ern) <strong>and</strong> dbh (5.65 ern) <strong>and</strong> <strong>IGFRI</strong> 8-3 for plant<br />
height (615.00 em),<br />
6. Evaluation of the performance of the Leuceene species <strong>and</strong> inter specific hybrids.<br />
Nine species of genus Leuceene viz., L. leucocephala, L. dioersitolie, L. lenceoleie,<br />
L. shsnnoni, L. esculente; L. t richodes, L. puloerulente, L. macrophylla <strong>and</strong> L. ret use <strong>and</strong> two<br />
interspecific hybrids of L. leucocephele x.L. pulverulenta were planted in 1983 with two replications<br />
<strong>and</strong> checks (K8, K28 <strong>and</strong> <strong>IGFRI</strong> 23-1 of L. leucocephala. Data were recorded on<br />
growth characters, viz., plant height, collar diameter, diameter at breast height, leaf <strong>and</strong> pod<br />
characters. Self incomparability study was also done in the experimental material. Means for<br />
plants height, collar diameter <strong>and</strong> diameter at breast height ranged from 160.50 (L. pulver-,<br />
ulenta) to 525'00 em (L. leucocephel« xL. puloerulentey, 8.00 (L. pulverulenta) 10 6.65 em<br />
(L.leucocephalaxL. puloerulenteq <strong>and</strong> 0.85 (L. esculenta) to 4.15 em (L. leucocephele x.L.<br />
pulverulenta), respectively. High magnitude was exhibited by sp. 1 (L. leucocephelecc L. puloerulenta),<br />
<strong>IGFRI</strong> 23-1, K 28 <strong>and</strong> K 8 for plant height, collar diameter <strong>and</strong> diameter at breast<br />
height.<br />
The length of pod, width of pod, no. of seeds per pod <strong>and</strong> 100-seed weight ranged<br />
from 10.38 (L. macrophylla) - 24.20 (<strong>IGFRI</strong> 23-1), 1.17 (L. lanceolata) - 2.08 (L. leucocephala<br />
var K 8), 15.80 (L. shannoni) - 28.00 (<strong>IGFRI</strong> 23-1) <strong>and</strong> 1.500 (L. diiersiiolie var,<br />
strain K 156) - 4.985 (<strong>IGFRI</strong> 23-1) respectively. Flowering did not take place in L. puloerulent«,<br />
L. esculent« while in L. t richodes <strong>and</strong> L. dioersiiolie (CIAT) trees flowered but there<br />
was no seed formation.<br />
Self incornpatability was present in all the species except L. leucocephele identified<br />
based on bagging of 50 buds in each species. In L. ditersifolie: <strong>and</strong> L. lenceolet« compatable<br />
plants for pure seed production were identified.<br />
7. Evaluation of selected lines of L. leucocephala.<br />
Eighteen Selections with K8 <strong>and</strong> K28 were planted in July 1983 in irrigated area. The<br />
irrigation was given only first year for good establishment. Observations were recorded on<br />
collar diameter, diameter at breast height, plant height <strong>and</strong> disease reaction when plants were<br />
one year <strong>and</strong> six months old. Eight selections i. e. S 10 (8.00 em), S 15 (7.03 ern), S 11 (6.83<br />
ern), S 18 (6.50 ern), S 14 (6.38 cm), S 16 (6.30 em) <strong>and</strong> S 7 (6.35 ern) were better than best<br />
161 )
check (K 8) for collar diameter. For plant height, eight selections namely S 15 (625.10 em),<br />
S 10 (620.00 em), S 11 (600'00 em), S 17 (598.00 em), S 16 (591.25 em), S 3 (531.67 cm),<br />
S 18 (568.33 ern) <strong>and</strong> S 2 (560.00 cm) were higher than K 8, s 15 <strong>and</strong> S 10. All the selections<br />
were free from any disease except minor incidence of gumrnosis was observed in S-13.<br />
8. Evaluation of new lines of L. leucocephelti,<br />
Twenty seven new lines of L. leucocephele received during 1983-84 were planted in July<br />
<strong>1984</strong> with K 8 <strong>and</strong> K 28 <strong>and</strong> <strong>IGFRI</strong> 23-1. Observations on collar diameter, diameter at breast<br />
height, plant height, earlyflate flowering <strong>and</strong> disease reactions were taken when plants were 6<br />
months old. None of them was better than best check (<strong>IGFRI</strong> 23-1) in respect of collar<br />
diameter, diameter at breast height <strong>and</strong> plant height. However, <strong>IGFRI</strong> 88 (EC 157592),<br />
<strong>IGFRI</strong> 101 (K 340), <strong>IGFRI</strong>89 (EC 157591),<strong>IGFRI</strong> 90 (EC 157588) were giving better<br />
performance. Gummosis was observed in <strong>IGFRI</strong> 8I,<strong>IGFRI</strong> 85, <strong>IGFRI</strong> 91, <strong>IGFRI</strong> 98,<br />
<strong>IGFRI</strong> 100 <strong>and</strong> <strong>IGFRI</strong> 101.<br />
( 162
DIVISION OF SEED<br />
TECHNOLOGY<br />
SPR-l<br />
GENETICAL AND GENE-ENVIRONMENTAL ASPECTS IN FORAGE SEED<br />
PRODUCTION.<br />
1.1 Genetic analysis <strong>and</strong> improvement for seed yield <strong>and</strong> its components in fodder<br />
crops.<br />
(P. N. Mathur)<br />
1. Path coefficient analysis<br />
Oat: The path coefficient analysis for fodder <strong>and</strong> seed yield components was carried out<br />
by growing 34 genotypes of oat to estimate the direct <strong>and</strong> indirect effects of plant height,<br />
tilIers per plant, ·number of leaves, length <strong>and</strong> width of leaf on green fodder yield. The study also<br />
included the direct <strong>and</strong> indirect effect of length of ear head <strong>and</strong> number of spikelets on seed<br />
yield.<br />
Tillers per plant have nothing to do directly in the enhancement of green fodder yield<br />
as its direct contribuion was negative (-0.1408). There was also negative indirect effects of<br />
plant height (-0.0519), length of leaf (-0.0713) <strong>and</strong> width of leaf (-0.084) which have·<br />
masked the positive effects of number of leaves, ultimately resulting in negative association<br />
(-0.1408) of tillers per plant with green fodder yield. Number of leaves which did not show<br />
significant positive association with green fodder yield had high direct effect (0.2382).<br />
However, its contribution through plant height, length of leaf <strong>and</strong> width of leaf were low <strong>and</strong><br />
negative through tillers per plant (-0.0418), which might have resulted into a low correlation<br />
value. Width of leaf which had a high positive correlation with green fodder yield had low<br />
direct effect (0.1748) but showed high indirect effect through length of leaf (0.3131).<br />
Green fodder yield had highest positive direct effect (0.5204) on seed yield, followed<br />
hy tillers per plant (0.3177), plant height (0.3048) <strong>and</strong> width of leaf (0.1459). It was very<br />
interesting to observe that the indirect effects through green fodder yield was also highest when<br />
compared with indirect effects through other variables except for tillers per plant. The high<br />
direct effects of tillers per plant have been masked by the negative indirect effect via plant<br />
163 )
height, number of leaves, length of leaf, width of leaf <strong>and</strong> green fodder yield resulting in poor<br />
association between tillers per plant <strong>and</strong> seed yield. Number of leaves has nothing to do in<br />
the enhancement of seed yield as its direct effect is negative (-0.2214), Moreover, it also had<br />
low indirect effect through other variables.<br />
Length of earhead is otherwise a very important direct yield component having significant<br />
positive association with seed yield has negative direct effect. Length of leaf <strong>and</strong><br />
number of spikelets per plant had high indirect effects through green fodder yield <strong>and</strong> plant<br />
height than their direct effects on seed yield. On the other h<strong>and</strong>, plant height had high<br />
direct effects on seed yield than it" indirect effect through number of leaves <strong>and</strong> number of<br />
spikelets.<br />
It was therefore, evident that plant height, length of leaf <strong>and</strong> width of leaf were the direct<br />
components both for fodder <strong>and</strong> seed yield for which selection can be effective as these components<br />
also exhibited hight heritability coupled. with high genetic advance. While selecting<br />
high yielding genotypes for fodder as well as seed yield in oat, a compromise must be<br />
reached so that advance in one component is not nullified by another.<br />
Cowpea: Path coefficient analysis was done to estimate the direct <strong>and</strong> indirect effects<br />
of branches per plant, leaves per plant, pod bunches per plant, flowers per bunch <strong>and</strong> pods<br />
Fer bunch 0'1 seed yield The analysis indicated that pods per bunch had the maximum direct<br />
effect on seed yield followed by pod bunch per plant.<br />
Branches Fer plant had positive correlation with seed yield while its direct effect was negative.<br />
Its positive indirect effect through pod bunches per plant <strong>and</strong> pods per bunch were<br />
perhr ps the major artifact of this positive association. It clearly indicates that as the number<br />
of branches increases, total number of pods per plant; will also increase because of the<br />
increased number of pod bearing branches. The direct effect of the leaves per plant was<br />
low compared to its ind irect effect through branches per bunch. It had 'negative indirect<br />
effect through branches per plant <strong>and</strong> flowers per bunch Hence, it would be rewarding to<br />
lay stress on pod bunches per plant. This can be achieved through increased number of pod<br />
bearing branches in selection programme in fodder cowpea.<br />
2. Breeding high fodder yielding varieties of photo-period sensitive bajra.<br />
Two composites PST-899 <strong>and</strong> PSL-2151 which bompleted five cycles of selection were<br />
put underpreliminary yield trial. The data on yield trial revealed that these two composites<br />
are superior over giant bajra, Rajko <strong>and</strong> L-74, checks.<br />
164 )
I<br />
The composite PS-2-l325, which was included in All India Coordinated trial attained<br />
1st position across 13 locations <strong>and</strong> was identified as a promising variety to be released by the<br />
Forage Workshop. This composite was prepared after allowing the r<strong>and</strong>om mating among the<br />
ten lines for 4 generations. The important morphological features of the variety were as<br />
follows:<br />
(a) The duration of flower initiation to complete flowering was very large <strong>and</strong> hence late<br />
maturity.<br />
(b)<br />
(c)<br />
(d)<br />
Dark green foliage even at seed maturity.<br />
Small ear head.<br />
High tillering with long leaves.<br />
(e) The basal internodes were very short which produced more number of leaves in the<br />
lower half of the plant.<br />
Twenty hybrids along with their parents were raised during kharif <strong>1984</strong> <strong>and</strong> data were<br />
recorded for various development traits. Some of the hybrids viz., SP-I4 x Giant bajra, SP-63<br />
x Giant bajra, SP-66 X Giant bajra, SP-I8 X Rajko, SP-50 X Rajko <strong>and</strong> SP-82 X Rajko showed<br />
good performance.<br />
SPR-2<br />
INVESTIGATIONS ON AGRONOMIC AND PHYSIOLOGICAL ASPECTS IN<br />
FORAGE SEED PRODUCTION.<br />
2.1 Maximization of Seed production in pasture <strong>and</strong> forage plants with the amelioration<br />
of agronomic practices of cultivation.<br />
(R. P. Singh)<br />
1. Cowpea: Varietal seed setting potentiality-s-Twelve promising strains of cowpea<br />
were evaluated for seed yield components <strong>and</strong> seed yield, The results showed the yield potential<br />
in the order of NP-3 (3.12 q!ha);> UPC 5286 (2.52 q!ha» <strong>IGFRI</strong>-S-450 (2.4 q!ha» HFC<br />
42-1 (1.43 q!ha) <strong>and</strong> least in Russian Giant (0.8 q!ha).<br />
The observations on seed setting characters lead to the conclusion that in the agroclimatic<br />
conditions of Bundelkh<strong>and</strong> the maturity duration of a varietyis an important character<br />
which influences seed yield <strong>and</strong> as such medium duration varieties were found superior over<br />
late duration varieties. It was observed that number of flower retained, number of pod, number<br />
165 )
of seed/pod <strong>and</strong> test weight were positively correlated with the seed yielding potentiality of<br />
the cultivar. It was further noted that the flowering to maturity period falling between<br />
September 15 to November 15 was the most suitable for high seed setting in a cultivar.<br />
Seed production potentiality of cultivars under summer <strong>and</strong> kharif sowing conditions.<br />
The seed of three promising c.rltiv.rrs (NP-3, HFC 42-1 aad Russian Giant) were sown on 4<br />
dates in spring/summer (February 25, Malch 10 <strong>and</strong> 25 <strong>and</strong> April 10) <strong>and</strong> kharif (June 25,<br />
July 10, 25 <strong>and</strong> August 10) at row spacing of 30 em <strong>and</strong> seed rate of 30 kg/ha. Uniform<br />
fertilizer application W.1S made with 15 kg N, 30 kg P 20j <strong>and</strong> 30 k~ K 20/ha.<br />
On the basis of the results the following conclusions could be derived :<br />
(i) The seed production potentiality of some of the cultivars in summer is lzss than as<br />
compared to kharif season. The important limiting constraints which prevailed in<br />
summer seed production were thinner plant population, flower <strong>and</strong> pod drops. Similarly<br />
the pods were not properly filled (3-4 as against 7-8).<br />
(ii)<br />
In spring. sowing in March was found critical as the later sown crop did not flower <strong>and</strong><br />
the earlier sown one was severely affected by Jassids <strong>and</strong> remained patchy in st<strong>and</strong>.<br />
Russian Giant did not flower <strong>and</strong> NP-3 <strong>and</strong> HFC 42-1 produced only 1.5 <strong>and</strong> 1 q<br />
seed/ha, respectively.<br />
(iii) The crop Sown on June 25 <strong>and</strong> July 10 encountered Severe weed infestation<br />
(S20-11l2/m 2 ) ard grEw vegetatively more bulky at the expense of reproductivejphase,<br />
On the contrary, the crop sown on July 25 or August 10 was less infested with weeds,<br />
attained balanced canopy <strong>and</strong> diverted more energy towards pod production. Under<br />
these sowing dates the reproductive period approached at the proper vegetative growth<br />
'evel ", hich terminated in profuse pod formation <strong>and</strong> seed development. The average<br />
yields were 1.52, 2.27, 3.46 <strong>and</strong> 3.36 q/h'l with corresponding dates of sowings. The<br />
maximum yield was obtained from NP-3 <strong>and</strong> the minimum with Russian Giant.<br />
2. <strong>Fodder</strong> Sorghum (Rio)<br />
Split application of 80 kg N/ha at sowing <strong>and</strong> side-dressing at knee-high stage (1/2+<br />
1/2) doubled (12.25 q/ha) the seed production as compared to broadcasting of dose at sowing.<br />
Broadcastmg of full nitrogen at knee-high stage was at par with split (1/2+1/2) application.<br />
It was interesting to note tha: atleast one application in the roorzone (either at sowing or at<br />
knee-high stage) was very beneficial. Three splitting (1/3+ 1/3+ 1/3) at sowing, knee high<br />
stage <strong>and</strong> flag leaf stage was not necessary.<br />
166 )
3. Berseern<br />
Seed setting behaviour of cultivars-s-Seven promising strains of berseem (Wardan,<br />
BL-·l, JB-2, JB-l, UPB-I0l, UPB-1.02 <strong>and</strong> Mescavi) were evaluated under two phosphate<br />
levels. The seed yield was the maximum in Wardan (2.01 qjha) followed by M escavi (1.80<br />
qjha) <strong>and</strong> minimum in JB-2 <strong>and</strong> BL-l. The dry fodder yield was also highest in Wardhan<br />
(40.5 qjha) followed by Mescavi (41 qjha). The analysis of the plant characters showed<br />
positive correlation coefficient values of flower number (r=+0.777), number of seedjplant<br />
(r=+0.844), seed weight (r=+0'747) <strong>and</strong> number of tillers (r=+0.579). Plant height<br />
showed negative correlation, Application of 50 kg P 20,j/ha increased fodder as well as seed<br />
yield over 30 kg P 20:;jha.<br />
Effect of height of last cutting on berseem seed production : The treatment consisted<br />
of three cutting heights (of the time of leaving the crop for seed production) <strong>and</strong> foliar spray<br />
ofatrazine at 0 <strong>and</strong> 0.1% concentration (after 15 days of regrowth),<br />
The results revealed the superiority of berseem crop which was cut at 10 em height<br />
before leaving it for seed production (IS a result of better gradient of sugar concentration <strong>and</strong><br />
transport to active site (Table 28). This treatment also increased the boll number as well "s<br />
the number of seed per boll. Atrazine spray at a concentration of 0.1% a. i. was found<br />
effective in improving number of bolls, number of seed per boll <strong>and</strong> seed size. A cutting<br />
height of 10 em superimposed with atrazine spray produced the maximum seed yield.<br />
Table 28 : Effect of last cutting height <strong>and</strong> atrazine spray on berseern (Wardhan) seed<br />
production.<br />
Treatments No. of fertile Bollj Seedj Weight of Seed yield<br />
tillerjplant plant boll 10JO seeds (b) (bjha)<br />
Cutting height<br />
Scm 5.8 8.4 22.7 2.713 1.96<br />
10 cm 7.3 11.6 31.6 2.774 3.16<br />
15 em 6.7 9.8 29.4 2.765 2.49<br />
A .razins spray<br />
No spray (control) 6.4 7.5 24.6 2.714 2.74<br />
0.1% 6.8 10.3 30.8 3.134 3.50<br />
167 )
4 .. Oat ..<br />
Improvement of seed yield through harvesting management <strong>and</strong> use of<br />
agro-chemica1s:-The experiment was carried out on oat cv. <strong>IGFRI</strong>-S-3021 with threeharvesting<br />
management lopping/cutting at 45 <strong>and</strong> 60 days of growth alongwith uncut crop in<br />
association with three treatments of agro-chemaal spray (control, Iinuron 0.25 kg aijha,<br />
Fluchloralio ] l/ha <strong>and</strong> 4O' 1'
mum (Gatton, Trichoglum <strong>and</strong> Coloratumi <strong>and</strong> four levels of nitrogen (0, 40,80 <strong>and</strong> 120 kg<br />
N/ha) to select suitable variety <strong>and</strong> optimum level of nitrogen for maximum seed production.<br />
The results showed that variety Gatton gave the maximum seed yield (45.26 kg/hal<br />
fgllowed by Trichoglum (25.11 kgrha) <strong>and</strong> Coloratum (l8.56 kg/hal. Application of 120 kg<br />
N Iha produced the maximum seed yield (37,36 kg/hal whereas control treatment registered<br />
the minimum seed yiel I (20.23 kgjhaj.<br />
2. Effect of N<strong>and</strong> P on seed production of pennisetum polystacltyon.<br />
The experiment was repeated in the second year with five levels of nitrogen (0, 30, 60,<br />
90 <strong>and</strong> 120 kg Njha) <strong>and</strong> three levels of phosphorus (0, 30 <strong>and</strong> 60 kg P20s/ha) to select the<br />
optimum dose of fertilizers for cbraining the maximum seed yield of this grass.<br />
The result revealed that the seed yields with 80 <strong>and</strong> 120 kg N/ha were practically the<br />
same (l44 kgjha) seed yield (111.49 kg/hal was obtained III the control (no nitrogen)<br />
treatment:<br />
The seed yields of 136.38 <strong>and</strong> 135.66 kg/Ila obtained with 30 <strong>and</strong> 60 kg P 205/ha<br />
respectively were at par.<br />
3. Effect of inter <strong>and</strong> intra-row spacing on seed production in grasses.<br />
{i) Setaria sphacelate : The treatments consisted or ten treatment combinations<br />
with four inter <strong>and</strong> intra spacings of 75, 50, 30 <strong>and</strong> 15 em on S. sphacelata cv. n<strong>and</strong>i. A fertilizer<br />
schedule of 40 kg Njha <strong>and</strong> 20 kg P205/ha was applied at planting time in the middle \<br />
of July to all the plots.<br />
The maximum seed yield (68.85 kg/hal was obtained with a spacing of 50 sm X 30 cm<br />
<strong>and</strong> the minimum (22.64 kg/hal with a spacing of 75 ern X 75 em.<br />
o (ii) Chrysopogon fuluus: The experiment on inter <strong>and</strong> intra-row spacing was laid<br />
out on Chrysopogon fulvus cv. Mhow <strong>and</strong> Ch<strong>and</strong>igarh to know the best spacing for getting<br />
the maximum seed yield. The treatments were the same. as for Setaria species. Nitrogen @<br />
40 kg/ha was applied in the middle of July uniformly to all the plots.<br />
Results showed that the maximum seed yieid (41.85 kg/ha) was obtaided in the spacing<br />
of 50 em X 30 em followed by 30 em X 30 (37.41 kg/hal <strong>and</strong> 50 em X 50 em (3422 kg/hal<br />
in Chrysopogon [ultus cv. Mohw. The minimum seed yield (15.95 kg/ha) was obtained<br />
with a spacing of 75 em X 75 COl.<br />
( 169 )
As regards Chrysopogon fulous cv. Ch<strong>and</strong>igarh, the maximum seed yield (80.70 kgjha)<br />
was obtained with the spacing of 50 em X 50 em followed by 50 em X 30 em <strong>and</strong> 75 em x l S<br />
em (78 kg/ha). The minimum seed yield was obtained in narrow spacing of 15 cmx 15 ern,<br />
4. Effect of spacing <strong>and</strong> seed'rates on seed production in glasses Setaria sphecelat a.<br />
An experiment with three row to row spacings t25. 50 <strong>and</strong> 75 em) was estnb lished<br />
during the year using five seed rates (2.5, 5.0, 7.5. 10.0 <strong>and</strong> 12.5 kg/ha).<br />
During the establishment year, the results did not show significant differences among<br />
seed rates <strong>and</strong> spacings. However, maximum seed yield 03.32 kg/ha) was obtained with<br />
the spacing of 50 cm followed by 75 <strong>and</strong> 25 ern row to row spacing (12 kg!ha). Maximum<br />
seed yield of 12.53 kg!ha obtained with a seed rate of 7.5 kgjha was at par with 5.0 kg<br />
seed/ha. Minimum seed yield (11.42 kgjha) was, however, obtained with a seed rate of<br />
2.5 kgrha.<br />
5. Pasture plants<br />
Ten entries of Cenchrus <strong>and</strong> nine of other grasses iPaspalum, Panicum, Setaria, Chrysopogon,<br />
Dichanthium, Guinea & Brachiaria were planted to study their seed setting behaviour<br />
<strong>and</strong> yielding potentiality. The seed yielding potentiality was found in the descending order<br />
of Cenchrus ciliaris CV, Biloelars: Paspalum plicatulum> Cenchrus-black local> Panicum<br />
aniidotale> Cenchrus S-3108> Cenclrrus-Guynadh.<br />
The seed setting behaviour <strong>and</strong> potentiality of Stylosanthes hamata, S. humilis, S. qua:<br />
nensis, Glycine <strong>and</strong> Desmodium were studied.<br />
The production potential was found to be as under.<br />
Pasture species<br />
Styiosanthes hamata<br />
S. humilis<br />
S. quanensis<br />
GFycine cv. Tinaros<br />
Glycine cv . clearance<br />
Seed yield (kg/ha)<br />
152-315<br />
265-4{'5<br />
526-680<br />
186-294<br />
125-186<br />
170 )
Glycine cv, Cooper<br />
Desffiodium<br />
105-165<br />
45-65<br />
It was also found that providing biological support of napier of other plants, the<br />
seed production in Glycine improved by 85/~.<br />
2.3 Agronomical studies for exploiting system based seed production in forage crops<br />
(cultivated).<br />
(R. K. P<strong>and</strong>ey)<br />
1 . Evaluation of crop cultivation systems for improved seed production in Oat varrety<br />
3021.<br />
Experiment consisted of eight variable systems including six treatments of 40 days cut<br />
crop. After fodder cut, crop recieved 40 kg N /ha in one <strong>and</strong> two equal splits (at cut <strong>and</strong> 40<br />
days later) with <strong>and</strong> without inter-row-tillage <strong>and</strong> placement of 50 kg P205/ha. Rest two<br />
treatments were of uncut crop, one of which was sown 40 days later coinciding with fodder<br />
cut in early sown crop. Both these st<strong>and</strong>s received 40 kg N/ha as top dressing. A common<br />
dose of 60 kg N<strong>and</strong> 50 kg P205/ha was applied as basal fertilizer schedule to all the treatments,<br />
The cultivation system comprising 40 days cut crop receivmg 40 kg N /ha in cornbinanation<br />
with inter-row tillage <strong>and</strong> placement of 50 kg P205/ha was found to be more promising.<br />
This system recorded an additional yield of 70.0 q green fodder <strong>and</strong> 2.34 q seeds/ha<br />
over that obtained from uncut crop applied with the same level of nitrogen. The dif'erence<br />
between these treatments was statistically significant. The split application of nitrogen after<br />
cut did not show significant rasponse to seed crop.<br />
2. Evaluation of mixed cropping systems of fodder sorghum <strong>and</strong> cowpea for improved<br />
seed production.<br />
In all, eight treatments were tried, Cowpea, cv. HFC 42-1 was introduced in 50 em<br />
apart rows of sorghum cv, M. P. Chari by broadcasting 10 to 20 kg seed/ha. In case of line<br />
sowing 20 kg sed of cowpea was harvested for fodder in the mid of the Season while in the<br />
other, the crop was maintained for seed. For comparison, pure crops of sorghum <strong>and</strong> cowpea<br />
were also grown at 25 <strong>and</strong> 50 cm spacings' In closer spacing, 50 <strong>and</strong> 40 kg seedj ha<br />
were USed for cereal <strong>and</strong> legume. respectively which were reduced to their halves under wider<br />
spacing. 1:-,,,<br />
171
None of the crop mixtures reduced the seed yield of sorghum (MP Chari) significantly.<br />
In pure culture crops, 50 cm row spacing produced higher seed yield over 25 em spacing. In<br />
mixed cropping system, broadcast cowpea (20 kg seed/ha) produced an additional seed yield<br />
of 2.55 qjha without significant reduction in the seed production of 50 ern apart sorghum.<br />
Similarly, an additional green fodder yield of 78.4 q/ha was obtained from cowpea when<br />
grown with sorghum in alternate rows.<br />
2.4 Studies on phosphorus <strong>and</strong> boron in cowpea, berseem <strong>and</strong> luzerne seed crops.<br />
(S. M. Mishra)<br />
1. Studies on phosphorus nutrition, on its uptake, use efficiency pattern <strong>and</strong> sugar synthesis<br />
in lucerne (Medicago sativa L.).<br />
A field experiment with five levels of P205 (0, 20, 40, 60 <strong>and</strong>80 kg/hal was conducted<br />
-on s<strong>and</strong>y loam soil to study the uptake behaviour of P <strong>and</strong> its proportionate availability to<br />
lucerne from two surces viz., native <strong>and</strong> fertilizer. The result revealed that the translocation<br />
-of water soluble sugars to seeds during reproductive- phase was found to be associated with P<br />
uptake. Lucerne crop, in which several cuttings are taken before the crop is left for seed,<br />
depends for its P requirement mainly on native source.<br />
2. Yield, phosphorus removal <strong>and</strong> its USe efficiency by cowpea as affected by rateof P<br />
applications.<br />
A field experiment with 5 levels of P 2 0 5 (0, 15.. 30, 45 <strong>and</strong> 60 kg/ha) was conducted on<br />
.red soil to study the P response, removal <strong>and</strong> USe efficiency by cowpea var. HFC 42-1.<br />
Increased yields <strong>and</strong> higher P concentrations were oberved for straw, pod covers <strong>and</strong> seeds<br />
'with increasing P levels. The fertilizer efficiency was found to be only 13.75 pereent indicating<br />
high P fixing capacity of these soils.<br />
2.5 Physiological variability in forage crops <strong>and</strong> their manipulation for high seed<br />
yield.<br />
(N. C. Sinha)<br />
1. Physiological variability <strong>and</strong> source - sink relationship in guar (cluster bean).<br />
Source-sink relationship, among eight varieties of cluster bein were studied Cfable 3J).<br />
In general, sugar concentration was maximum in flower (7.5%) followed b) root (7.2%), leaf<br />
172 )
(5;7%) <strong>and</strong> stem (5.7%). The high seed yield in varieties GL-~, Guar .80 <strong>and</strong> GL-12 may be<br />
correlated with higher sugar concentration in flower, ef1iclent functioning of photosynthetic<br />
pigments (as judged by Chla. Chlb) <strong>and</strong> moderate respiratory balance at anthesis stage of crop<br />
growth. Variety GL 14 stood next in seed production. In this variety most of the sugar was<br />
translocated from leaf to seed directly; even though the sugar cancentration was poor in flower.<br />
Extremely high respiration rate of HFG 119 resulted in poor concentration of sugar in all the<br />
plant parts<strong>and</strong> thereby adversely affected the seed formation though this variety had high<br />
chlorophyll. Moreover, low dark respiration in variety GL 18 <strong>and</strong> GL 16 did not favour<br />
the seed yield because of poor translocation of sugar from leaf to stem to seed. Thus it may<br />
be concluded that moderate dark respiration <strong>and</strong> good accumulation of sugar in flower appeared<br />
to be desirable characters for high seed harvest in cluster bean.<br />
Table 30:<br />
Physiological characters for assessing the source-sink relationship.<br />
Varieties<br />
Leaf<br />
Water soluble sugar %<br />
Stem Root<br />
Flower<br />
Respirat<br />
ion rate<br />
mg Co 2 !<br />
gdmjhr<br />
Chlorophyll<br />
(mgjg fresh wt)<br />
Chl-a Chl-b<br />
GL12 5.1 1.9 5.9 7.3 5.36 0.260 0.153<br />
GL 18 4.8 2.9 3.0 7.0 3.79 0.171 0.143<br />
GL 8 5.3 8.0 7.3 12.2 6.08 0.260 0.152<br />
\<br />
HFG 119 3.1 4.3 6.0 3.7 11.24 0.295 0.255<br />
.Guar 80 5.9 6.2 9.1 13.1 5.89 0.260 0.152<br />
GL 7 7.8 9.7 9.5 6.1 4.06 0.186 0.243<br />
GL 16 5.9 8.4 8.3 4.5 4.86 0.202 0.235<br />
GL 14 8.3 4.2 8.6 6.1 5.03 0.208 0.202<br />
2. Source-Sink relationship studies in bajra,<br />
A field experiment was conducted with seven varieties of bajra (PSB 2, PSB 3, WCC-<br />
75, Gujarat selection, Ar:<strong>and</strong> selection, JFB 801 <strong>and</strong> BJ 104) to analyse their yielding ability.<br />
Seed production was higher in moderate tillering varieties i. ~. WCC~75 <strong>and</strong> Gujarat selection<br />
173 )
ut fodder yield was highest in JFB 801. Gujarat selection appeared to be dual purpose<br />
since this variety produced enough fodder besides yielding maximum seeds. It may be worth<br />
while to mention that poor <strong>and</strong> high tillering did not appear to be conducive for forage <strong>and</strong><br />
seed production, respectively.<br />
The sugar concentration was low upto jointing stage <strong>and</strong> increased sharply at anthesis,<br />
with sudden fall at postanthesis period. Among the plant parts, stem showed the highest<br />
concentration indicating that it serves as reservoir for sugar accumulation. Sharp decline<br />
in sugar content in leaf from anthesis to post anthesis period indicated rapid translocation<br />
of sugar (newly formed photosynthatesj towards stem <strong>and</strong> its further utilization in cob formation.<br />
Heavy unloading of sugar from leaves during that period adversely affected photosynthetic<br />
process. The majur difference in sugar content during anthesis period appeared to<br />
favou r the grain growth <strong>and</strong> development in variety WCC-75. The concentration of sugar<br />
was intially high in JFB 801 which increased gradually at anthesis with 'little fall at post<br />
anthesis period. The data revealed that high sugar content in the begining was favourable for<br />
increased forage production <strong>and</strong> has comparatively less contribution to cob formation.<br />
3. To study the effect of chemicals on water soluble sugar <strong>and</strong> seed yield of berseem,<br />
A field experiment was conducted to study the effect of chemicals (Sulpur- 15, 30, 45<br />
<strong>and</strong> 75 gjlitre, planofix 0.2 <strong>and</strong> 0.4%. Borax 2 <strong>and</strong> 4 gjlitre. ammonium molybdata-3 <strong>and</strong> 6<br />
gjlitre, potassium chloride 10 <strong>and</strong> 20 gjlitre), on the concentration of water soluble sugar<br />
reflecting in seed yield of berseem. Application of potassium chloride @ 10 gjlitre showed<br />
higher (3-4 times) increase in seed yield over control which might be due to higher concentration<br />
of water soluble sugar in leaf <strong>and</strong> flower. There is also indication that K +is greatly<br />
associa-ed with translocation of sugar from storage organs to reproductive organs. The<br />
higher content of sugar in leaf due to application of KCl revealed the involvement of Kin<br />
photosynthate formation <strong>and</strong> their use in tiller development, Planofix (0.2%) also increased<br />
the seed yield equivalent to KCI treatment though the mode of action may have been different.<br />
The increased seed yield due to Borax (4 gjlitre) mignt be related with higher sugar content<br />
in flower responsible for seed <strong>and</strong> boll formation. Tulering was not influenced by Borax<br />
application. The increase in seed yield due to ammonium molybdate was sightly lower than<br />
Borax application <strong>and</strong> appeared to be related with utilization of sugar in boll <strong>and</strong> seed formation<br />
as the sugar concentration waS quite evident in flower. Application of sulphur was not<br />
effective in influencing the seed yield of berseem; though higher dose showed some stimulatory<br />
effect on seed attributes.<br />
4. Effect of seed size on germination, seed vigour <strong>and</strong> physiological potential of cowpea<br />
(Vigna unquiculata)<br />
(N. C. Sinha & R. P. Singh)<br />
174 )
Four varieties of cowpea (Russian Giant, UPC 5286, JC 21 <strong>and</strong> GFC 3) were graded<br />
into three size groups from mixed lot of 500 g seeds viz., Large (retained over mesh No, 4<br />
of 4.0 mm squares) medium (retained over mesh No. 5 of 3.35 mm squares) <strong>and</strong> (small through<br />
mesh No.5) alongwith mixed seed as control.<br />
After gradation, the seeds were germinated under controlled condition with a view 10<br />
screening out the varieties bearing good vigour potential to yield good bulk cf forage/plant,<br />
The experiment was conducted at 20 ± lOC'<br />
Cowpea cultivars Russian Giant <strong>and</strong> UPC 5286 showed high ratio of large seeds in<br />
mixed lot. Only these two cultivars exhibited cent per cent germination with potential vigour<br />
<strong>and</strong> high germination energy index. In addition, the large seeds had high germination percentage<br />
over other group without influencing the germination energy index. Seed vigour (as determined<br />
by shoot length, shoot ,: root. ratio <strong>and</strong> dry matter accumulation) was high in large<br />
sized seed followed by medium ones. Water soluble sugar was high with less production of<br />
alcohals in large seeds resulting in relatively high ratio of sugar : alcohal while<br />
it was reverse in small seeds.<br />
5. Studies on Vigour aud viability of fodder seeds under uncontrolled storage condition.<br />
.q.f..~ :.<br />
Seeds of cowpea Vigna unguiculata L. var. HFC 42-1), sorghum (Sorghum bicolor var.<br />
M. P. Chari) <strong>and</strong> Berseern (Trifolium alex<strong>and</strong>rium L. var. Wardhan) were stored in bags!<br />
containers (Polythene-P, Do-SutIi-Do, Markeen-M, gunny bagt-ST <strong>and</strong> seed box-SB) af er<br />
drying in sun for 2-3 days. Similar samples from different stores were taken to study the<br />
effect of storage containers on germination, seed vigour <strong>and</strong> physiological health after 4, 17<br />
<strong>and</strong> 26 weeks, Gradual loss on seed vigour <strong>and</strong> physiological potential occurred during<br />
storage; being minimum with cowpea seed stored in polythene (p) <strong>and</strong> Markeen (n) <strong>and</strong> M.P.<br />
Chari in Do Sutli (Do). The vigour <strong>and</strong> germination of berseem seed were initially poor<br />
(4 week storage) but gradually improved during 26 weeks storage. There was no effect of<br />
storage container on berseeru'seed vigour <strong>and</strong> showed an indication of after ripening phenomenon<br />
in it.<br />
SPR-3 INSECT-PEST-PATHOGEN INFLUENCES AND THEIR CONTROL IN<br />
FORAGE SEED PRODUCTION.<br />
3.1 Integrated post management in forage seed production system.<br />
(Shri Ram)<br />
175 )
1. Effect of dates of sowing <strong>and</strong> varieties on the incidence of insect pests vis-a-vis green<br />
fodder <strong>and</strong> ~eed yield of mustard.<br />
An experiment was conducted for the second year with four dates of sowing (October<br />
13 <strong>and</strong> 23, November 3 <strong>and</strong> 13) <strong>and</strong> three varieties (Chinese cabbage-early maturing, 1M 145<br />
-medium maturing <strong>and</strong> 76-103 late maturing) in split plot design replicated three times. The<br />
results revealed that the crop sown on November 3 had minimum incidence of mustard saw<br />
fly (1.409 larvaejm'') followed by October 13 sown crop whereas minimum popuhtion of<br />
mustard aphid was observed in the crop sown on October 23 (5.968 per twig of 4 em).<br />
Maximum green fodder (227.8 qjha) <strong>and</strong> seed (11.4
susceptible variety (EC-4216), two weedings (after 15 <strong>and</strong> 30 days of sowing) <strong>and</strong> balanced<br />
fertilizer schedule (15 kg N+60 kg P205+20 kg K 2 0 jha, can minimise the incidence of<br />
insect-pests can give higher seed yield over conventional cultural practices (late sowing, local<br />
variety-<strong>and</strong> no fertilizer).<br />
By integration the improved cultural practices with insecticide endosulfan,.-0.08% ai<br />
(being applied at 50 days of crop growth, the incidence of pests was further reduced, <strong>and</strong> seed<br />
production was increased.<br />
5. Efficacy of different insecticides <strong>and</strong> their frqeuencies of application for the control of<br />
insect-pest complex of c.)wpea in inter cropping system (With M. P. Chari).<br />
A replicated trial was conducted with insecticides endosulfan 35 EC (0.08% a. 'i.),<br />
Carbaryl 50 w. p. (0.1 % 11''i.), monocrotophos (0.06% a i.) <strong>and</strong> malathion 50 EC (0.05%) in<br />
two frequencies (once at 55 dsys <strong>and</strong> twice at 45 <strong>and</strong> 60 days of crop growth) to see their<br />
effectiveness against insect-pests of vegetative stage when the cowpea crop was intercropped<br />
with M. P. Chari. The results indicated that the crop sprayed only once either with endosulfan<br />
(0.08% a. L) or carbaryl (0.1% a. i.) gave satisfactory control of leaf-hoppers, defoliators,<br />
blister beetle <strong>and</strong> lycaenid butterfly <strong>and</strong> produced maximum seed yield (10.0 qjha) as<br />
compared to control (5.9 qjha).<br />
6 Screening of promising cowpea varieties' agai nst its major insect-pests for seed prodiction<br />
potentiality.<br />
Twenty one varieties of cowpa were sown in a replicated trial to study the resistance<br />
against major insect-pests like leaf-hopper, defoliators, blister beetle <strong>and</strong> lycaenid butterfly:<br />
The results showed that varieties lL-89, IL-132, IL-307 <strong>and</strong> <strong>IGFRI</strong>-450 were comparatively<br />
least susceptible to insect pests <strong>and</strong> gave higher seed of 11.7, 11.3, 10.9 <strong>and</strong><br />
10.4 qjha respectively.<br />
3.2 Seed borne diseases <strong>and</strong> their control in forage crops.<br />
(S. N. Singh)<br />
1. Isolation <strong>and</strong> identification of different micro-organism associated with forage crops.<br />
Safflower (Carthamus tinctorusy : Mecrophomimi phsseoline, Alternaria csrthemi,<br />
Aspergillus {favus, Drechslera spp., Scletotium roltsii, Fusartum monillforme, Collectot richum<br />
177 )
earthami <strong>and</strong> Rhizopus nigricuns were found dominant seed pathogens in all cultivars <strong>and</strong><br />
resulted in seed rot <strong>and</strong> seedling mortality. Mecrophomina phaseolina <strong>and</strong> Sclerotium rot/sit<br />
were found severe seed-borne pathogens allowing only 15-20% seedlings to emerge.<br />
Stylosanthes species: Seeds of S. hamata, S. humilis, S. scabra, <strong>and</strong> S. »iscosa<br />
were collected from different locations. Planting of seed component showed Phoma spp.<br />
Curoularia lunata, Fusarium monilitorme, Collectotrichum glocosperioides <strong>and</strong> Drechsera spp.<br />
as seed associated pathogens, out of which Colletotrich urn glocosperioides <strong>and</strong> Curvularia<br />
lunata were found in all species. These affected germination <strong>and</strong> seedling growth. The incidence<br />
ranged from 8 to 82.5% in S. humilis <strong>and</strong> S. hamata..<br />
') "<br />
Evaluation of fungicides for controlling seed-borne diseases.<br />
Berseem & Lucerne: Soaking treatment with Bavistin @ 0.75% for 24 hours gave the<br />
best seedling emergence in berseem wardhan <strong>and</strong> Lucerne <strong>IGFRI</strong>-S-244 with drying at room<br />
tern peratu re.<br />
Anthracnose in Stylosanthes : During first year the trial was conducted on S. hamata,<br />
S. humilis, S. scabra <strong>and</strong> S. uiscosa after Seed treatment with Bavistin <strong>and</strong> Vitavax @ 0.3%<br />
to prevent the introduction of new races of Collectorichum glocosporioides <strong>and</strong> to limit the<br />
spread Of infection in fields. In all the species Bavistin was quite effective in reducing the<br />
seedling diseases <strong>and</strong> seed rots upto 30%. S. hamata <strong>and</strong> S. humilis species responded more<br />
to this treatment than S. scabra <strong>and</strong> S. »iscosa.<br />
Testing of proven results: Best fungicides viz. Bavistine @ 0.25~~ <strong>and</strong> Dithane Z-78<br />
were tested. The pre-emergence mortality due to Maerophomina phaseolina, Fusarium<br />
semitectum <strong>and</strong> F. equiseti was only 5-10% with the treatments against 25-38% in control.<br />
The growth <strong>and</strong> seed yield was maximum in Bavistin treatment.<br />
Lucerne (<strong>IGFRI</strong>-S-244) <strong>and</strong> Berseei.r (Wardhan). The fungicides Dithane M.45,<br />
Vitavax, Benlate, Brassicol, Thirarn, Bavistin, Dithane Z-78 <strong>and</strong> csres<strong>and</strong>ry @ 0.25% ~were<br />
applied as a seed dressing before sowing against root rot (Fusarium oxysporum) in lucerne.<br />
Bavistin <strong>and</strong> vitavax @ 0.25% treatments checked the disease to the extent of 92% These<br />
fungicides also checked downy mildew (Peronospora trifoliorum) <strong>and</strong> leaf rust Uromyces<br />
striatus, Bavistin <strong>and</strong> Vitavax treatments significantly increased green forage <strong>and</strong> seed yield by<br />
35-58% <strong>and</strong> 48-68%, respectively.<br />
Diseases,' Earlier observation in berseern crop showed the effect of pre-emergence <strong>and</strong> <br />
post-em~rgence damping-off (caused by seed-borne pathogen Fusarium-oxysporum, Curoaula<br />
178 )
ia lunata <strong>and</strong> pythium rot: There was significant decrease in the number of seed per boll,<br />
test weght <strong>and</strong> ultimately the seed yield. The maximum loss in plant population was recorded<br />
in non-treated seeds while least in fungicides treated plots despite low infection. Wilt<br />
(F. oxysporum) <strong>and</strong> seed rots cause considerable reduction in yield. The mortality ranged<br />
from 15-32% in sick non-treated plots. The treatment u-ith Thiram <strong>and</strong> Bavistin @ 0.25%<br />
improved the plant population by 30-58% <strong>and</strong> seed yield by 48-73%.<br />
3. To device suitable measures for maintenance of seed health during storage.<br />
Cowpea seed: Among the fungisides tested during the year by 1STA method,<br />
Dithane Z-78 <strong>and</strong> Thirarn @ 0.25% proved to be the best in eliminating the Mncmphomina<br />
phaseolina <strong>and</strong> Fusarium fopp. These fungicides proved to be an excellent for term storage<br />
with good germination <strong>and</strong> planting value in fields when Kcpt in laboratory after required<br />
m, c. drying temperature in sealed containers.<br />
Berseern <strong>and</strong> Lucerne seeds: In the test for storage, these eeeds were kept at 20-25 0 C<br />
with 30-45% R. H. in CaO <strong>and</strong> Cacl 2 treatments. Eleven percent m. c. gave more germination<br />
during long-term storage of one year.<br />
3,3 Plant factors influencing resistant to insect pes ts (Insect -Plant Reiationshlp)<br />
rv. J. Shivankar)<br />
Screening of sorghum gerrnplasm against<br />
insect pests;<br />
Fifteen sorghum germplasms were sown on 3.7.84 to study the<br />
with insect peasts,<br />
host plant relationship<br />
}olerance--The crop was under observation upto 30 days (seedling stage) for shootfly<br />
(Atherigona soccata) infestation <strong>and</strong> for stem border tChilopartellusv, thereafter. The germplasms<br />
stood as follows in tolerance order for both the pests.<br />
Shoot fly infestation-3225-1 < Shankar < 3323 < 3228 < 1-3-8-12 < 2-2-10-3<<br />
3199-1
(ii) Less susceptible (20 to 35% infestation <strong>and</strong> (ii) tolerant (10 to 20 per cent infestation).<br />
Stem borer infestation.<br />
(1)<br />
Susceptible ; 1, Shankar, 3323, Pioneer <strong>and</strong> PC-6,<br />
(2)<br />
(3)<br />
Less susceptible<br />
Tolerant :<br />
3228,777,2-1-4-2, 1--1-24, 2-2-9-3, 3199-1 <strong>and</strong> 2-2-10-3.<br />
3225-1 <strong>and</strong> 1-3-8-12<br />
Green fodder yield-s-Seventy days old crop was cut for geen fodder yield ar.d the<br />
gr~mplasms ranked as follows.<br />
2-2-10-3>3199-1 >2-1-4-2>3228>3323>3225-1 >2-2-9-3> Shankar> 1-3-8-12<br />
1-1-2-4>777.<br />
The forage yield varied from a minimum of 251 to a maximum of 387 qjha.<br />
Screening of safflower germplasm,<br />
Eleven germ plasm of Carthamus aphid (Macrosiphum sonchi). Mid January onwards<br />
the aphid population started building-up: Within a fortnight period, it assumed dangerous<br />
proportions covering entire plant, right from base to the top. The population was kept under<br />
continuous conservation, based upon which different gerrnplasrns with accession numbers stood<br />
in the following tolerance order.<br />
130>118>74>96>20>117>9>1>116>7>95.<br />
3.4 Toxicological studies in relation to insect pests of fodder crops.<br />
Under this project various new insecticides were tried against the insect pests in search<br />
of t~e promising ones, which could be included in the programme to determine their residual<br />
persistance.<br />
Promising insecticides for safflower aphid Eleven gerrnplasms of Carthamus were<br />
sprayed with higher dose of monocrotophos (0'08%) at 60 days of growth when heavily<br />
infested with Carthamus aphid. Macrosiphum sonchi (aphid population of 76-300 jtwig!plant.<br />
The insecticidal treatment almost whiped out the aphid population, knocking them down on<br />
the gr~)lind, It provided complate safety to the plant from the pest for a fortnight. However,<br />
the population build-UP started again within a week's period. At this stage, the second<br />
treatment of monocrotophos (0.08~;';) was given to the crop, It repeated its earlier performance.<br />
The third spray of the insecticide was however, needed a fortnight later.<br />
Thus three insecticidal sprays (monocrotophos at 0.08%) at 20 days interval starting<br />
from 60 days of growth needed to keep the crop free from aphids.<br />
ISO )
DIVISION OF PLANT ANIMAL<br />
RElA-IONSHI<br />
PAR-l<br />
NUTRIENT LEVELS AND ANTIQUALITY FACTORS IN HERBAGES,<br />
1 1<br />
Investigations to evaluate histochemical technique vis-a-vis other procedures:<br />
(L. K. Karnani)<br />
The samples of 6 grass species, viz. C. ciliaris, C. sitigerus, D. annulatum,<br />
S. nertosum, H. cont ortus <strong>and</strong> I. wightii were collected from the C. R. Farm at an interval<br />
of one month from August to October, <strong>1984</strong>. The samples were collected in triplicate. Two<br />
samples were oven dried at a temp of 600C <strong>and</strong> the dry matter was caculated. The third<br />
sample was kept for histochemical studies.<br />
Histochemical studies: The plant was divided into four parts, namely, leaf blade, leaf<br />
sheath, top stem <strong>and</strong> bottom stem. Thin sections of all the plant parts were cut <strong>and</strong> stained<br />
with acid phluoroglucinol <strong>and</strong> chlorine-sulphite.Microscopical examination showed that in leaf<br />
blade, lignified tissue stained with acid phluoroglucinol was observed in the inner bundle<br />
sheeth <strong>and</strong> xylem of the large vascular bundle, while the sclerenchyrna got stained with<br />
chlorine sulphite.<br />
In leaf sheath, lignified tissue stained with acid phluoroglucinol was found mostly in<br />
small layers around phloem <strong>and</strong> xylem of the vascular bundles. The sclerenchyma connecting<br />
the bundles to the epidermis was stained slightly with acid phluoroglucinol but more so with<br />
chlorine sulphite. The sclerenchyma cells at the adaxial side were stained with chlorine<br />
sulphite. Parenchyma bundle sheaths surrounded vascular bundles <strong>and</strong> mesophyll in between<br />
the epidermises.<br />
In the stem portion, lignified tissue in the epidermis <strong>and</strong> in a thick b<strong>and</strong> of sclerenchyma<br />
<strong>and</strong> vascular bundles stained positive with acid-phluoroglucinol. Parenchyma cells stain<br />
positive for lignin with chlorine-sulphite only after keeping for some time. The variation in<br />
the distribution of lignified tissues in different portions studied is very significant <strong>and</strong> reflects<br />
the nutritional value.<br />
181
In another experiment, 5 mm sections of the plan t parts were cut <strong>and</strong> incubated with<br />
cuffer solutions alone (control) <strong>and</strong> with stained rumen liquor for 72 hours. The sections<br />
were thoroughly washed with distilled water <strong>and</strong> studied histochemically. These histochemical<br />
studies undertaken in conjuction with other nutritional techniques would facilitate rapid<br />
screening of forage samples <strong>and</strong> avoids tedius animal experiments.<br />
1.2 Invitro studies on the digcstibi ity of important fodder <strong>and</strong> fot agIO crops.<br />
(S. C. Gupta)<br />
1. Prediction of IVTDMD values using simple laboratory analyses data.<br />
Detailed investigation were undertaken to develop simple multiple regression equations<br />
for the prediction of IVTDMD at appropriate stage were used in digestibility trials <strong>and</strong> the<br />
results showed that:<br />
(i) The laboratory parameters of choice for the prediction of IVTDMD were: %CP,<br />
fibre (either in terms of % NDF or %CF) <strong>and</strong> % T.A. CF (%) was observed to be<br />
more promising than % NDF. The values of simplecorrelation coefficients were 0.90<br />
(S.E.=3.22) <strong>and</strong> 0.70 (S.E.=5.30) respectively.<br />
(ii) In comparison to the use of single laboratory estimate (CP or NDF or CF), the efficiency<br />
of the prediction of IVIDMD was not much improved in most of the cases <strong>and</strong><br />
where morethan one chemical constituent were employed <strong>and</strong> the best fits were as<br />
follows.<br />
(a)<br />
IVTDMD=-I.25 CF % +11466 (N=30;Y=0.90: SE=3.22)<br />
(b) IVTDMD=--=-1.21 CF ~~ +0.42 CF ~~ t 109.13 (n=30, r=0.92; SE=2.90)<br />
Twenty one observations on actuallv ingested herbage oat <strong>and</strong> three similar observation<br />
each on fodder matha (dough stage), cowpea (100;;:' flowering) <strong>and</strong> M. P. chari (Milk stage)<br />
were utilized in the computation of the above equations.<br />
1.3 Ensilage of herbages <strong>and</strong> crop residues.<br />
(A. P. Singh)<br />
182 )
Studies on guar silage.<br />
5, varietes of guar (viz., <strong>IGFRI</strong> S-212, HG 75, F.S. 277, HFG 119 <strong>and</strong> HG 182) grown<br />
during summer were ensiled either as such immediately or after wilting for 24 hrs in shade.<br />
After 60 da, s of ensiling, silos were opened for organoleptic tests <strong>and</strong> biochemical<br />
evaluation for quality traits. Organoleptic tests revealed that all the treatments gave ammonical<br />
odour. Due to more moisture, the texture of the sihg:s was not good in unwilted material as<br />
compired to willed herbage.<br />
Biochemical observations revealed that pH or all the silages was exceptionally high<br />
(6 ',7 to 8.:6). Wilted Sil.lgCS had higher pH (8.19 averagejthan unwilted ones (7.16).<br />
N;-{3-N: The production of a'lll11onical-N was very high in ali the treatments <strong>and</strong> this<br />
constituted 25.8 to 50.0~1a of total nitrogen. It was observed that wilting reduced NH3-N<br />
p:oduction.<br />
Acids <strong>and</strong> alcohol: There was very high production of volatile fatty acid (range 7.59<br />
--14.88~'t) <strong>and</strong> it was not significantly dfferent in varieties under test (range 10.36-12.03%):<br />
However, wilting reduced drastically its production from 14.2% to a net 8.53%. Alcohol<br />
P" !t ction varied between 0.88% <strong>and</strong> 2.65%. Wilting increased alcohol production from<br />
1.20% to 2 47~{<br />
In the absence of lactic acid <strong>and</strong> vary high production of butyric acid <strong>and</strong> acetic acid, the<br />
flieg index was zero; as such the quality was very bad. The main reason, which was thought to<br />
be responsible for p09r quality of Silage even at high dry matter (between 32.33%) was high<br />
concentration of water soluble N in the ingomg material.<br />
2. Quality of silage of hybrid napier (variety No.3) harvested at two stages of growth<br />
<strong>and</strong> grown under high f.rtiliry conditions.<br />
Hybrid napier (variety <strong>IGFRI</strong> No, 3)<br />
grown ncar cattle sned area containing 0.14 total<br />
nitrogen (soil rich in organic matter) was harvested at about 1:25 Ol<strong>and</strong> 2.50 m heights <strong>and</strong><br />
ensiled after chopping in laboratory glass silo immediately <strong>and</strong> also after over night willing.<br />
Wilting has reduced the buffering capacity <strong>and</strong> increased the water soluble carbohydrates<br />
at both heights. Crude protein was more at 1.25 m height than at 2,5 m height (12.47 &<br />
10.68% respectively) while NDF content had reverse trend (63.96~~ <strong>and</strong> 5.86% at two different<br />
stages).<br />
After about 60 days ( f storage, organolaptic tests revealed that all the four trcatments :<br />
183
gave good aroma <strong>and</strong> colour. Intensity of smell was less in wilted silages than unwilted ones,<br />
Perusal of the (table 31) indicated that all the silages were gcod in quality <strong>and</strong> wilting has not<br />
improved the quality of silage.<br />
3. Quality of hybrid napier (N. B. 21 variety) silages prepared at two stages of growth<br />
irrigated by sewage effluent.<br />
Hybrid napier (variety N. B.-21) grown in campus (Krishi Nagar colony) near a septic<br />
tank was harvested at 2 heights (1.5 <strong>and</strong> 3 m) <strong>and</strong> ensiled after chopping Immediately or after<br />
wilting over night in glass silos.<br />
Crude protein content was quite low. NDF content at both the heights remained more<br />
or less similar.<br />
After 60 days of ensiling organolaptic tests revealed that wilted material gave good<br />
aroma <strong>and</strong> texture compared to unwilted material. The data regarding biochemical parameters<br />
(table 33) indicated that unwilted silages were very poor (at both the heights) while wilted<br />
material gave "good" <strong>and</strong> 'very good' silage at 1.5 <strong>and</strong> 3 m heights respectively,<br />
This finding is contradictory to the observations of earlier experiment where hybrid<br />
napier No.3 had given good silage even at 16.8% dry matter. In the present case at 23% dry<br />
matter level it has given very poor silage.<br />
Data of these two experiments clearly suggests that when the protein content is high,<br />
wilting has no influence <strong>and</strong> is of nO advantage. But when the CP content is low wilting<br />
improves the quality of silage.<br />
4. Quality of silage prepared from the meterial grown under a system (System: Stylosanthes,<br />
Hybrid napier <strong>and</strong> Sesbania).<br />
Stylosanthes <strong>and</strong> hybrid napier were grown in alternate rows. After 3 rows of Stylo<br />
<strong>and</strong> 3 rows of Hybrid napier one row of Sesbania was planted. Approximate heights of these<br />
material when harvested for ensiling were as follows:<br />
Crop<br />
Sesbania<br />
Hybrid napier<br />
Height<br />
6-7 m<br />
3-4 m<br />
1 m<br />
Colour of leaves<br />
Leaves were dark green.<br />
Pale yellow in colour.<br />
Dark green in colour.<br />
184 )
Table 31 Biochemical aspects of hybrid napier (variety No.3) silages made at different heights with <strong>and</strong><br />
without wilting.<br />
Height %DM pH %NH 3-N %NH 3-N %water %water %WSC Ac-ne BlIcj- Lactic Aleo- L%T Flieg<br />
(em) of total soluble soluble acid ric acid hoi index<br />
N N N of (%) acid (%) (%)<br />
total N (~~)<br />
Unwilted 16.8 4.48 0.248 12.8 1.342 69.0 0.64 1.95 0.05 284 1 94 58.1 60<br />
125 Wilted 38.8 5.29 0.236 13.4 0.902 51.4 0.72 1.64 0.00 1.34 0.94 45.0 60<br />
Unwilred 17.6 4.18 0.180 13.9 1.002 77.7 099 2.06 0.00 2.90 0.74 58.6 69<br />
250 Wilted 37.0. 4'73 0:130<br />
,<br />
9.8 0.582 43.4 0.88 1.50 0.00 2.00 0.48 57.2 70<br />
Table: 32 Biochemical aspects of hybrid napier (variety No B. 21) silages m.lue at two heights with <strong>and</strong> without<br />
wilting]<br />
---<br />
Height %DM pH %NH 3-N %NH 3-N %water ~~water ~~WSC Acetic Buty- Lactic A leo- L&T Flieg<br />
(em) of total soluble soluble acid ric acid hoi index<br />
N N N of (%) acid (%) (~~)<br />
total N<br />
(%l<br />
"<br />
Unwilted 23.2~4.61 0.165 14.1 0634 54.6 0.64 4.36 1 11 0.88 t 2.65 139 4<br />
150 Wilted 55.0 5.58 0.062 5.13 0.292 24.7 1.12 0.66 0.02 0.98 1.07 59.0 61<br />
Unwiltcd 27.2 4,47 0.082, 15.0 0.352 57.2 0.64 2.59 1.37 0.50 2.96 11.3 11<br />
300 Wilted 53.5 5.02 0.034 6.8 0.210 41.9 1.25 0.43 0'00 0.98 1.58 69.6 86
Table : 33<br />
Biochemical aspects of style, hybrid napier <strong>and</strong> Sesbania silages grown in a system.<br />
Tret- %DM pH %NH 3-N %NH 3-N %water %Water %WSC %CP %Acetic Buty- %Lac- AJco- L&T Flies<br />
rnent of total soluble soluble acid ric tic hoi inde~<br />
N N N of acid acid<br />
total N<br />
1. Mixture 33.4 5.28 0.314 25.1 0.748 59.8 2.46 7...82 1.61 2.63 0.48 1.80 10.1 3<br />
of Style,<br />
hybrid<br />
napire &<br />
Sesbania<br />
(3:5:1)<br />
2. 5tylo 38.0 5,59 0.410 21.4 0.914 47.6 2.74 12.00 1.50 2,00 0.07 0.52 2.0 0<br />
3. Hy~rid 31.6 4.94 0.089 21.2 0.295 70.2 2.28 2.62 1.02 2.08 0.21 2.46 6.4 0<br />
NapIer<br />
4. Sesbania 32.8 7.94 1.118 31.3 2.324 65.1 1.76 22.34 2.44 4.42 0.03 3.88 0.4 0
These were ensiled after chopping separately in laboratory glass silos. In one treatment<br />
these were mixed in the proportion of their production as given bolow:<br />
Stylo 600, Napier-IOOO, Sesbania-200 (3:5:1). The dry matter of all the meterials<br />
varied between 31.5 to 33.0 per cent. Buffering capacity was similar in Stylosanthes <strong>and</strong><br />
hybrid napier. Crude protein content was very high in Sesbania (23.6 per cent) <strong>and</strong> least in<br />
hybrid napier (2.7 per cent). Water soluble N fraction of total N was very high in hybrid<br />
Napier (42.0 per cent of total nitrogen).<br />
After 6) days of storage, silages were opened <strong>and</strong> the organoleptic tests revealed that<br />
the silages made of stylo <strong>and</strong> hybrid napier were of moderate quality <strong>and</strong> that of Sesbania<br />
mixed herbrges Was of poor quality. Chemical analysis of rhese silages (table 32) revealed that<br />
all silages were of very poor quality. Production of NH 3-N <strong>and</strong> butyric acid was very high<br />
<strong>and</strong> lactic acid production was very low in J.Il the four silages. The Flieg indices of these<br />
silages were almost 'zero'.<br />
1.4 Influence of different additives/supplements in silage making.<br />
(A. B. Mojumdar)<br />
1. .Studies on the addition of Formaldehyde <strong>and</strong> Formic acid on fermentation pattern of<br />
Silage (In Vitro).<br />
Oat fodder cut at an early stage is leafy <strong>and</strong> is of high nutritive value (crude' protein<br />
in 16.58% <strong>and</strong> WSL 6.2 percent, AOF 44.36 percent, NOt
treated silage. Low ammonia levels 'in 1 per cent treatments produced good-quality silage.<br />
The sillage with no additive was badly preserved. Lower rate of application of formaldehyde<br />
did not appear to prevent the clostridial type of fermentation as seen by higher levels of butyric<br />
acid (2.60) <strong>and</strong> acetic acid (3.85). Thequality of this silage was poorer than the Control<br />
<strong>and</strong> the Flieg index was just 4. Higher rate of application of both the additives suppressed<br />
the acid fermentation gretly <strong>and</strong> there was no butyric acid formation <strong>and</strong> resulted in good<br />
quality silage (table 34)<br />
Table 34,.<br />
Fermentation characteristics of the silages,<br />
Ma rial pH Lactic Acetic Butyric NH 3 Flieg L%T<br />
acid acid acid N'j,TN index<br />
Control silage 47 4.25 4.05 2.80 14.68 12 35<br />
Low formaldehy de 4.8 2.60 3.85 2.60 14.26 4 28<br />
Low formic acid 4.5 5.22 '3.64 0.55 13.16 35 55<br />
Medium formaldehyde 4.9 1.72 2.05 0.45 10.48 18 42<br />
Medium formic acid 4.0 2.84 1.92 0.05 8.22 68 58<br />
High formaldehyde 5 1 0.92 0.96 0 6.44 62 49<br />
High formic acid 3.6 1:65 0.82 0 3.65 81 67<br />
A II valueson per eerie d. m. basis.<br />
2. Quality of cowpea silage (In Vitro) ~s affected by addition of formaldehyde, sulphuric<br />
acid either alone or in mixture.<br />
. Silage. was made from fresh cowpea fodder with the addition of different levels of<br />
formaldehyde <strong>and</strong> sulphuric acid either alone or in different combinations to see their effect<br />
." 9n·-.~i!(W~ fermentation pattern. The green material was chaffed <strong>and</strong> mixed uniformly with<br />
"~dclitjyes in detailed in following treatments <strong>and</strong> ensiled for 90 days: (1) control (2) low<br />
formaldehyde at the rate of 3.0 lit/ton (3) low sulphuric acid at the rate of 20 lit/ton (4)<br />
high formaldehyde at the rate of 5.0 lit/ton (5) high sulphuric acid 4.0 lit/ton (6) low<br />
formaldehyde-l-Iow sulphuric acid (3 1+2 I) (7) high forrnaldehyde-l-Iow sulphuric acid<br />
(61+21) (8) low forrnaldehyde-]- high sulphuric acid (31+ 41) (9) high formaldehyde-lhigh<br />
sulphuric acid (61+41] (10) high formaldehyde-t-high sulphuric acid 1.61+41).<br />
188 )<br />
'.
Organolelptic tests revealed that all the silages were ensiled well <strong>and</strong> found in good<br />
texture except, the control. The control <strong>and</strong> low additive treated silages had vinegar smell<br />
while ethers had pleasant smell. The physical state <strong>and</strong> texture of
The material was allowed to farrnen; for 90 days <strong>and</strong> then opened for sampling for<br />
organoleptic tests <strong>and</strong> biochemical analysis. Physical appearance of all the silages were good.<br />
Control silage had little offensive smell, low treated (upto 0.2 per cent addition) silage had<br />
little vinegar <strong>and</strong> rest had pleasant smell. All the silages were green in colour. The untreated<br />
silage had high pH (5.7) <strong>and</strong> treated silage had lower pH than sulphuric acid treated<br />
silage <strong>and</strong> this indicated little undesirable fermentation in former silage than the later.<br />
In all cases, the addition of formic acid <strong>and</strong> sulphuric acid resulted in lower values<br />
for ammonia than control (table 35).<br />
Table 35 Showing the effectiveness of sulphuric acid ro formic acid in suppressing silage<br />
fermen ration.<br />
Silage<br />
Lactic<br />
acid<br />
Acetic<br />
acid<br />
Butyric<br />
acid<br />
Total<br />
acid<br />
L&T<br />
Flieg<br />
index<br />
Untreated 5.7 16.58 2.3 4.50 1.45 8.25 28 6<br />
0.1% HCOOH 4.75 12.04 2.9 4.02 0.80 7.7 38 14<br />
0.1% H 2SO4 5.0 13.88 2.63 4.22 1.24 8.9 32 10<br />
HCOOH 4.25 9.66 2.55 2.72 0.1 5.37 46 0<br />
0.2% H 2SO4 4.8 10.25 2.42 3.38 0.4 6.2 39 0<br />
HCOOH 4.2 8.12 2.02 1.25 0 3.2 62 0<br />
0.4% H 2SO4 4.6 8.70 1.95 1.31 0 3.26 60 70<br />
HeOOa 4.1 0.31 1.52 0.68 0 2.2 69 84<br />
0.6% H 2SO4 4.2 0 1.56 0.80 0 2.36 66 81<br />
( 190
It was concluded that both organic as well as mineral acids were found to be equally<br />
good as preservatives in making good silage but former being slightly superior to later in<br />
suppressing tl.e fermentation. More equivalents of sulphuric acid is therefore would be required<br />
to check the fermentation effectively.<br />
4. Usefulness of formaldehyde <strong>and</strong> formic acid as silage additive for ensiling cereal crop<br />
like M. P. Chari.<br />
In this experiment, possibilities Were explored to make good silage of M. P. chari cut<br />
at an early stage of growth with out wilting by the use of two additives formic acid <strong>and</strong><br />
sulphuric acid.<br />
M. P. clari at 60 days of growth after sowing (pre-flowering stage) was cut, chaffed<br />
<strong>and</strong> ensiled directly with the following treatment (i) Untreated (ii) 0.25 % formaldehyde<br />
(iii) 0.25% formic acid (iv) 0.5% formaldehyde (v) 0.5% formic acid (vi) 10% formaldehyde<br />
(Vii) 10 %formic acid. All the additions were added on fresh weight basis.<br />
The silage were opened after 60 days of ensilment, All the silages were of yellowish<br />
green colour <strong>and</strong> good tex.ture with no mould formation.<br />
The results of biochemical analysis summerised in table revealed that all of them had<br />
ION pH (3.5-4.1). Protein breakdown was meager in all the silages including (he untreated<br />
(9.82) as indicated by the low ammonia value. This could be either due to low levels of<br />
nitrogen in original herbage or low prorolytic clostridial activity because of additives both<br />
formaldehyde as well as formic acid, the later being little more effective than the former.<br />
Lactic acid content was reduced by both additives.<br />
There was almost no butyric acid production with 0.5 % or higher rate of<br />
applications of both the additives.<br />
Thus all the acid treated silages were more stable than formaline treated silages. The<br />
quality of acid treated silages were also superior to other silages. 0.25 % added formic<br />
acid treated silage was of good quality while higher rate treated silages were excellent in<br />
quality as seen by Flieg index (88-96). The silage was of medium quality while 0.25%<br />
formlene treatment improved it to satisfactory quality. The higher rate of application of formaline<br />
produced good quality silage.<br />
It was concluded that good quality stable silage could be prepared from early harvested<br />
M. P. chari with lower rate of application of formic acid @ 0.25 to the fresh crop<br />
191
whereas the quantity of Iormaline required is more than of formic acid i. e. 0.5% to fresh<br />
crop for producing good quality silage.<br />
1.5 Micro nutrients in pastures <strong>and</strong> forage crops <strong>and</strong> their utilization.<br />
(K. S. Ramach<strong>and</strong>ra)<br />
1. A study was conducted with growing calves to find, out the effect of zinc supplementalion<br />
on the digestibility of proximate principles hematological paramet~rs<strong>and</strong> growth<br />
performance of Zebu calves.<br />
15 growing calves used for the study were divided into 3 groups 0[,5 calves each,<br />
according to their body weights. The animals in group 1 Were. offered a basal diet (35 ppm<br />
zinc) whereas, the animals in group 2 <strong>and</strong> 3 were given the basal diet, supplemmted with 65<br />
<strong>and</strong> 80 ppm of zinc as zinc sulphate. The study was conducted for. 90 d1J.Ys a.,np the last Seven<br />
days of which constituted the collection period.<br />
Zir;c supplementation increased the levels of hemoglobin content, packed cell volume<br />
<strong>and</strong> zine concentration in the blood. The results were however, not statistically significant. The<br />
results are presented in table 36.<br />
Table 36<br />
Effect of zinc supplementation on hematological parameters.<br />
At the start of expt.<br />
At the end of expt,<br />
Group Hb PCY Blood zinc Hb PCY Blood zinc<br />
(g/100 ml) (%) (mg/lOO ml) (g/100 mlj (%) (mg/lOO ml)<br />
._--'.,-_.'----'--<br />
1. 9.95 36.0 110.0 10.30 39.3 115'6<br />
2. 10.20 38.2 108'5 11.32 44.0 144.8<br />
,.,<br />
.J.<br />
9.26 36.0 115.4 '.98 41.4 123.8<br />
The supplementation of zinc did not have any significant effect on the digestibility of<br />
dry matter, ether extract, crude protein, crude fibre <strong>and</strong> nitrogea free extract.<br />
192 )
The effect of zinc supplementation on tissue protein deposition was also studied. It<br />
was observed that zinc influences the tissue protein deposition. The percentage of nitrogen<br />
consumed which was deposited as tissue protein was 6.21%, 9.29% <strong>and</strong> 8.9% for groups I, 2<br />
<strong>and</strong> 3, respectively. It was inferred that zinc plays a role in protein metabolism at the tissue<br />
level, However, the exact mechanism by which zinc influences the protein metabolism is yet<br />
to be studied.<br />
Satisfac: ory growth rates were obs rvcd in the animals of all the three groups. Zinc<br />
supplementation reduced the average dry matter intake but influenced the efficiency of feed<br />
conversion.<br />
From the above study it was conclud ~J that zinc has a vital role in the growth <strong>and</strong> feed<br />
utilization efficiency in growing calves <strong>and</strong> the optimum requirement of zinc for growing calves<br />
is around 90-)(0 p,)m. In an earlier study, it was observed that the zinc content ,of the natural<br />
grazing areas of Bundelkh<strong>and</strong> region is below the normal suggested levels <strong>and</strong> there is a need<br />
for the region with zinc. The present study has supported the earlier views.<br />
2. Micro element status of Leucaena leucocephala fodder tree leaves;<br />
Three types of Leucaena leucocephala viz. Salvador, Peruvian <strong>and</strong> Hawain were studied<br />
(the leaves Were collected from the fodder trees grown in the field of Dr. V. K. Gupta,<br />
Scientist S-:2 of ASP Division). The leaves were analysed for the levels of zinc, copper, iron,<br />
cobalt <strong>and</strong> manganese. The results are presented in table 36).<br />
Table 37 Trace mineral composition of Leucaena leucocephala (leaves) types of D. M. Based:<br />
Type<br />
Zn Cu Fe Co Mn<br />
(ppm) (ppm) (ppm) (ppm) (ppm)<br />
Salvador<br />
Peruvian<br />
Hawain<br />
9'84 12.8 508.0 LO 50.0<br />
10.50 15.2 625.0 0.7 33.0<br />
11.20 13.7 435.0 0.8 47.8<br />
The observations recorded has revealed that Leucaena ieucocephala fodder tree leaves<br />
have an adequate supply of theimportant trace minerals. It appeared that the fodder tree leaves<br />
193
are an excellent source of copper, cobalt, manganese <strong>and</strong> iron. The zinc content appeared to be<br />
in the lower range.<br />
PAR 2: NUTRITIONAL EVALUATION OF FORAGES AND FORAGE PRODUCT<br />
ION SYSTEMS.<br />
2.1 Investigations on various chemical <strong>and</strong> physical attributes of forages on the<br />
intake as well as digestibility coefficients of various nutrients.<br />
(V. C. Pachauri)<br />
1. Nutritive value of Para grass.<br />
Two experiments were conducted to de-termine nutritive value of paragrass<br />
(Brachcria mutica) at two stages of growth i. e. green (45% OM) <strong>and</strong> partly dry (73% DM)<br />
on growing cow calves <strong>and</strong> buffalo calves (3+3). The ration was computed in such a manner<br />
that the protein requirement of the animals was met by concentrate mixture <strong>and</strong> paragrass in<br />
the ratio of 75:25.<br />
Three growing buffalo calves <strong>and</strong> cow calves were selected <strong>and</strong> distributed into two<br />
groups They were offered ad-lib green paragrass <strong>and</strong> required quantity of concentrate. Metabolism<br />
trial of seven day period was conducted after about 45 days of preliminary feeding. At<br />
the time af feeding trial paragrass had 45% dry m uter. Frorn the data of chemical composition<br />
it was seen that C. P. content of the grass (3.16%) was low <strong>and</strong> NDF content (58.04)<br />
was high.<br />
Intake <strong>and</strong> digestibility coefficients of nutrients have been given in table 38. Average<br />
intake of dry matter (DM). digestible crude protein (DCP) <strong>and</strong> total digestible nutrients<br />
(TON) in buffalo calves <strong>and</strong> cow calves was 340 kg, 3.98 kg; 0.16 kg, 0.24 kg <strong>and</strong> 1.49 kg,<br />
231 kg (per 100 kg live weight) respectively. Perusal of the data indicate that the digestibility<br />
coefficients of the nutrients were higher in cow calves than buffalo calves. The study showed<br />
that this forage was utilised more efficiently by cow calves than buffalo calves, especially, when<br />
the dry matter content of the paragrass was about 45~~. The nitrogen retention (g per head per<br />
day) was higher in cow calves (+29.12) than buffalo calves (+10.99). However, the daily<br />
weight gain recorded by buffalo calves was (kg per head per day) @ 0.40 kg while that of<br />
cow calves was @ 0.38 kg in 58 days.<br />
2. Nutritive value of paragrass (spring growth) in buffalo <strong>and</strong> cow calves.<br />
The animals of experiment 1 were continued in experiment 2 <strong>and</strong> were fed ad lib<br />
paragrass <strong>and</strong> 75% of the protein requirements of the individual calves were met through<br />
194 )
Table 38 ; Intake <strong>and</strong> digestibility coefficients (%) of nutrients of paragrass with two stages<br />
of growth (period I <strong>and</strong> II)<br />
Period 1<br />
Period II<br />
Intake of nutrients Group 1 2 Group 1 2<br />
(Buffalo) (Cow) (Buffalo) (Cow)<br />
Dry matter (kg/IOO kg L W) 340 3,98 2.90 3.16<br />
Dry matter (g/kg W 0.75) 105.16 119.39 98.87 103.32<br />
Digfs'ible crude protein (g/kg W 0.75) 5.11 7.30 6.18 5.60<br />
Total digestible nutrients (g/kg W 0 75) 47.64 71.29 51.00 78.33<br />
Digestible energ.y (K cal/kg W 0.75) 199.80 272 21 169.23 150.85<br />
Metaboli:: ble energy (K cal/kg W 0.75) 16384 223.21 138.77 125.34<br />
Digestibility coefficients <strong>and</strong> N balance<br />
Dry matter 48.73 64.85 65.86 58.76<br />
Organic matter 50.71 66.74 61.03 57.01<br />
Crude protein 49.58 62.29 56.74 51.02<br />
Ether extract 60.48 66.83 64.40 59.81<br />
Crude fibre 50,68 67.34 58.15 53.11<br />
Neutral detergent fibre 37.61 58.05 58.72 54.17<br />
Acid detergent fibre 28.16 51.38 52.71 46.74<br />
Nitrogen free extract 50.33 67.03 68.95 75.89<br />
Cell censtituents 67.33 75.82 95.06 94.72<br />
Energy 54.18 64.67 56.28 47.86<br />
N balance (gjheadjd) +10.99 +29.12 +27.46 +24.48<br />
-g-<br />
r_<br />
( 195
Table 39:<br />
Nutrient composition of para grass at two stages of growth.<br />
-<br />
Period I (Green)<br />
Period II (Partly dry)<br />
Nutrient Para grass Para grass Concentrates Forage Residue Concentrate;<br />
offered residue offered<br />
---<br />
Dry matter 88.92 90.44 88.82 89.63 90.32 79.20<br />
Organic matter 89.90 89.49 84'96 89.24 89.14 83.93<br />
Crude protein 3.16 3.06 21.64 3.45 2.42 21.07<br />
Ether extract 1.08 0.87 1.14 O~ 79 0.76 0.97<br />
Crude fiber 25.85 26.04 13.00 33.77 32.96 15.04<br />
Nitrogen free extract 59.81 59.52 49.18 51.23 52.96 48.85<br />
Neutral detergent fibre 68.04 69.66 50.78 79.92 79.87 45.40<br />
Acid detergent fibre 42.25 43.35 30.31 50.62 53.15 34.85<br />
Cell constituent 31.96 3034 49.22 20.08 20.13 54.60<br />
Ash 10.10 10.15 2.80 JO.76 10.86 ro.or<br />
GE (K ~al/g) 3.87 3.76 2.82 3.87 4.67 2.82
concentrate. The herbage at this stage of growth contained very high DM, the CP was 3.45%<br />
<strong>and</strong> NDF 79.92%. The experimental feeding lasted for about 90 days followed by seven<br />
day metabolism trial. The intake <strong>and</strong> digestibility coefficients of nutrients have been presented<br />
in table 39. Intake of DM, DCP <strong>and</strong> TDN in buffalo <strong>and</strong> cow calves was 2.90 kg, 3.16 kg,<br />
0.18 kg, 0.17 kg, 1.70 kg, 2.44 kg (per 100 kg L W) respectively.<br />
The perusal of the data showed that the digestibility Coefficients of the nutrients were<br />
higher in buffalo calves than cow calves, while in experiment I when grass was green the digestibility<br />
coefficients were higher in cow calves. Live weight gains (kg per head per day) in<br />
buffalo <strong>and</strong> cow calves were 0.39 g <strong>and</strong> 0.29 kg respectively. The nitrogen retention was<br />
higher in buffalo calves than cow calves (27.20 g <strong>and</strong> 24.09 g respectively). The ration in<br />
experiment I supplied in buffalo <strong>and</strong> cow calves 4'86%, 6.11 ~~ DCP <strong>and</strong> 45.30%, 59.79% TON<br />
whi'e in experiment 2 they were 6.27%, 5.28~~ DCP <strong>and</strong> 51.54~1o <strong>and</strong> 75.85% TDN respeclively<br />
Tne results of this experiment have conclusively shown that buffalo calves utilized nutrients<br />
better when the fodder became fibrous or lignified.<br />
2'3 Evaluation of protein quality of forages<br />
(P. Kumar)<br />
1. Evaluation of sweet sorghum fodder (Rio) based feeding system in cattle <strong>and</strong> buffaloes.<br />
In post monsoon months, when grazing does no, provide adequate nutrients, in some<br />
organised farms of Uttar Pradesh lactating animals are given sweet sorghum fodder (Rio-Sorghum<br />
bico lor) alongwith limited concentrate supplement. An experiment was undertaken<br />
at state Government Livestock Farm, Bharari, Jhansi on 18 Tharparkar cow') <strong>and</strong> 12<br />
murrah buffaloes of first lactation during the months of September-October to evaluate the<br />
fo Ilowing feeding practice.<br />
The animals were offered concentrate mixture in two instalments at the time of milking<br />
mixed with wheat bhoosa <strong>and</strong> moistened with water. The quantity of mixture was at the<br />
rate of 0,75 kg per cow <strong>and</strong> 1.25 kg per boffalo in the morning <strong>and</strong> same quantities in the<br />
evening. Chaffed Jowar fodder was offered ad libitum twice a day to ensure that the manger<br />
is never empty. Depending on the residue left in the manger, the quantity of roughage was<br />
regulated <strong>and</strong> the feed consumed was recorded, Water was offered twice a day, After a<br />
preliminary feeding period of 3 weeks, a digestibility trial was conducted choosing 4 cows<br />
<strong>and</strong> 4 buffaloes to determine nutrient intake <strong>and</strong> utilisation for milk production'<br />
( 197 )
Table 40 ; Nutrient digestibility (%) <strong>and</strong> plane of nutrition (gJkg W 0.75Jday)<br />
Parameter Cattle Buffaloe '1' value<br />
Digestibility (%)<br />
Dry ma~ter<br />
53.03±4.30 63.99±4.82<br />
3.46S<br />
Crude protein<br />
69.50±3.06 66.07 ±3.28<br />
1.60 NS<br />
Ce lhilese<br />
51.10± 5.92 64.33±2.80<br />
4.00HS<br />
1I.th.e1t extlrac.tt<br />
4.70±4.37 38.97±3,67<br />
6.54HS<br />
Plane of nutrition:<br />
(g/kg W O.75/day)<br />
IDry matrerr<br />
)07.94 ± 7.99 127.26± 14.1<br />
2'38 NS<br />
II> e; P~.<br />
5.55±O.36 627±0.25<br />
3.42 S<br />
62.96±8.54 88.90± 12.07<br />
3.72 S<br />
Milk production (lit/day)<br />
Before trial<br />
After trial<br />
'to value<br />
Cattfe<br />
2.58±0.69<br />
2.19±0.58<br />
0.87 NS<br />
Buffalo<br />
3.54±O,47<br />
3·40±0.62<br />
0.39 NS<br />
NS=non significant, S=s'gnificant (5~~). HS=highly significant (1%).<br />
( 198 )
The results summarised in table 40 have shown that there was no significance betWeen<br />
the species in dry matter consumption when it was expressed on the basis of metabolic body<br />
size (t=.=2.38 NS).<br />
The digestibility of dry matter, cellulose, ether extract was significantly higher in buffaloes.<br />
protein digestibility was not significantly different III cows <strong>and</strong> buffaloes. On the whole<br />
buffaloes have utilized nutrients better than cattle from Jowar fodder. This feeding regime<br />
did not significantly effect milk produced in both species <strong>and</strong> supported 3-4 litres of milk<br />
production/day.<br />
2, Nutrient status of pastures/grassl<strong>and</strong>s in Bundelxh<strong>and</strong>.<br />
In Bundelkh<strong>and</strong> region, the availability of green fodder from natural grassl<strong>and</strong>s to the<br />
grazing livestock is restricted to monsoon <strong>and</strong> early post monsoon months only, so also the<br />
availability of nutrients. It would be possible to obtain optimum satisfactory levels of production<br />
into minimum levels of supplementation during this part of the year. The farming<br />
communities which are predominantly poor can be helped to get better returns from their<br />
livestock with minimum expenditure on supplemental feeding if the nutrient status of grassl<strong>and</strong>s<br />
ale determined. Therefore this investigation of nutritional survey was undertaken<br />
during the months of October-November,<br />
Samples were collected from 6-8 locations (villages) in each district <strong>and</strong> in each lceation,<br />
samples were drawn from four different points <strong>and</strong> pooled to make it representative of<br />
that location, Botanical classification of two common/predominant species of each site were<br />
identified with the help of a Botanist <strong>and</strong> were recorded, Samples were first air dried <strong>and</strong><br />
subsequently dried in an oven to constant weight. Dried herbage samples were powdered<br />
with precaution to avoid contamination <strong>and</strong> were utilzed for analysis, The average composition<br />
of all samples of each district were given in the table 41 perusal of the data shows that the<br />
protein content varied from 5.33 ± 1.29 to 9.37± 1,59 : the lignin was between 6,68%± 1.30<br />
to 8,48%±2.06, The protein level was just adequate for maintenance. The structural carbohydrates<br />
(NDF, Cellulose <strong>and</strong> lignin) did not differ significantly from district to<br />
district,<br />
The levels of copper zinc were much lower than the normal <strong>and</strong> therefore supplernentation<br />
of these two elernen ts is considered essential for grazing animals of this region. With<br />
regard to iron its availability is more or less satisfactory as compared to its requirement.<br />
(Dr. R. K. Tyagi <strong>and</strong> Shri K, S. Ramach<strong>and</strong>ra were<br />
associated in this experiment)<br />
199
Sable AI.<br />
District wise nuu iti onal quality (on dry matter basis)<br />
District %<br />
% % % % % % % %<br />
Ash CM Insoluble C.P. NDF ADF Lignin Cellulose E.E.<br />
Ash<br />
PPm PPm PPm<br />
Cu Zn Fe<br />
Chhatarpur 11.80 83.78 5.75 7.49 73.83 45.83 8.48 39.07 lAO 37.65 21.60 139.90<br />
± 1.33 ±2.19 ±1.94 ±4.14 ±2.79 ±2.06 ±4.45 ±0.32 ±7.26 ±2.29 ±22J ± 129.38<br />
S:.1.gar 11.50 84.32 6.04 5.33 70.76 42.74 6.68 35'85 1.41 5,12 16.37 146.11<br />
±3.03 ±3.19 ±2.4 ± 1.29 ±4.69 1:2.63 +1.30 ±2.47 ±0.29 :1:3.13 ±6.58 ± 205.80<br />
Panna 11'84 84.98 5.85 S.54 72.32 42.50 7.43 35.06 1.26 5.60 11.93 154,82<br />
±3.49 ±3.60 ±2.79 ±1.44 ±4.42 1:4.13 ±1.18 ±3.18 ±0,38 +1.55 ±4.61 ± 145.47<br />
Damoh 13.99 81.68 3.16 9.37 72.2 42.81 7.D ~5,68 1.02 31.26 17.96 218.33<br />
±1.58 ±2.14 ±2.65 ±1.48 +4.32 ±3.56 +1.75 ±2.8S ±0.31 ±4.58 1:5.32 ± 115'32<br />
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NUTRITIONAL QUALITY OF GRAZINGLANOS IN BUNOELKHAND<br />
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2.4 Evaluation 'of pastures 'for growth 'in calves.<br />
(N. C. Verma <strong>and</strong> V. S. Upadhyaya)<br />
1. Evaluation of mature dry grass supplemented with Leucaena leucocephala <strong>and</strong> concentrate<br />
mixtur~ for growing cross-bred calves.<br />
Twelve cross-bred calves (3/4 Hariana-l- 1/4 Holstein) between 1-2 years of age weighing<br />
on an average 121 kg (90-171 kg) live weight were div.ded into three equal groups'<br />
Group I was maintained ad-lib feeding of mature chaffed dry gr:lss tSehlma neriosuni<br />
Heteropogon contortus dominant) .Group II was maintained on ad lib feeding of dry grass<br />
plus 4 kg Leucaena leucoccphala foliage (leaves with soft twigs) per animal per day <strong>and</strong> Group<br />
III was maintained on ad lib feeding of dry grass plus 2 kg concentrates per animal per day.<br />
The experiment was conducted for 105 days. The digestibility trial <strong>and</strong> haemoglobin estimations<br />
were carried out at the end of the experimental feeding period. The dry ijrass was of<br />
very poor quality having only 3.1~~ CP <strong>and</strong> 28.7& C. fibre. Leucaena leaves supplied 16.5% CP<br />
<strong>and</strong> 22.8% C. fibre. The concentrate mixture was supplying 21.8% CP <strong>and</strong> 8.5% C. fibre.<br />
The proximate chemical composition, digestibility coefficients of different nutrients <strong>and</strong><br />
nutrient intake by calves have been presented in table 42 respectively.<br />
The dry matter digestibility of dry grass was low. The addition of Leucaene (about<br />
37.5% of total DMI) slightly improved the dry matter digesti bility, whereas addition of<br />
concentrate (about 32% of total OMI) increased the overall dry":matter digestibility (42.4% to<br />
47.8%) The addition of Leucacna <strong>and</strong> concentrate both reduced the crude fibre digestibility.<br />
No significant difference was recorded in the digestibility of ether extract <strong>and</strong> nitrogen free<br />
extract (NFE).'<br />
Dry matter intake was not increased due to Leucaena supplementation (Table 43)<br />
whereas it was increased due to concentrate supplementation.<br />
The OCP intake increased substantially due to Leucaena supplementation in group II<br />
but little difference was observed in supply of TON. The concentrate supplementation increased<br />
the availability of both DCP <strong>and</strong> TON in group III.<br />
III.<br />
The increased intake of protein <strong>and</strong> energy increased the haemoglobin level in group<br />
1<br />
The animals of group I lost on an average 240± 39 g live weight/day while the animals<br />
of group If miinained their live weight <strong>and</strong> the animals of group III gained on an average<br />
, ~<br />
( 202 )
Table 42<br />
Digestibility coefficients of nutrients <strong>and</strong> nutritive value<br />
Group<br />
Type of feed<br />
Digestilibiity coefficients<br />
D.M. C.P. C.E. E.E.<br />
Nutritive value<br />
N,P. E. D.C.P. T.D.N.<br />
I Mature dry grass 42.1 9.94 42.6 86.7 486 0.3 43.6<br />
±8.9 ±5.37 ±9.48 ±0.57 ±7.4 ±0.16 ±8.11<br />
II Mature dry grass + 44.0 56.80 30.6 81.1 49.8 4.6 45.5<br />
•<br />
L. leucocephala ± 1.1 ± 1.86 ± 1.83 ±0.68 ± 1.24 ±0.20 ±0.95<br />
c<br />
III Mature dry grass+2 kg 47.8 55.80 30.5 87.2 57.2 5.0 49.5<br />
concentrate ±3.7 ±2.60 ±4.18 ± 1.13 ±3.6 ±O.27 ±3.15'<br />
Table 43 Nutrient intake, live weight gain <strong>and</strong> haemoglobin level of blood<br />
Group<br />
D. M. Intake Nutrient intake Live weight Haemoglobin<br />
gain/day<br />
g!100 ml<br />
%B.W.<br />
.....',1 0.75 DCP~~ TDN%<br />
g<br />
kg g B,W. B,W.<br />
g kg<br />
I 3.4 110,3 . 10.14 1,50 -240. 8.7·<br />
II 3.4 114,3 156.74 1.55 10.3<br />
III 4.1 140.5 205.00 2:03 +285 Il,S<br />
7
"<br />
285 g/animal/day. The loss of live weight in group I can be attributed to dificiency of DCP<br />
availability as per NRC (I971). Supplemental feeding of leucaena which is a rich source of<br />
protein <strong>and</strong> B carotene checked the loss in live weight in group II. Better growth performance<br />
in group III could be attributed to increased intake of DCP <strong>and</strong> TDN as compared to group<br />
I <strong>and</strong> II.<br />
2. Evaluation of Cenchrus ciliaris grass with <strong>and</strong> without Stylosanthes hamata for growing<br />
~ross bred calves.<br />
Eight cross bred calves (102-122 kg live weight) were divided into two groups of four<br />
animals each <strong>and</strong> allowed to graze 0) Cenchrus ciliaris (<strong>IGFRI</strong>-3108 <strong>and</strong> (ii) C. ciliaris grass<br />
+ Stylosanthes hamata (val'. Varano) during the month of August <strong>1984</strong>. It was recorded that<br />
the dry matter consumption was found to be 2.0 kg body weight in C. ciliaris grass <strong>and</strong> 1.87<br />
kg/lOa kg body weight in C. cilicris-vStylosanthes hamata group. The herbage utilization by<br />
the animals was 60.0% from C. ciliaris <strong>and</strong> 44.2% from mixed pasture of C. ciliaris +<br />
S. hamata.<br />
"<br />
After about a month the animals were stall fed during the months of September <strong>and</strong><br />
October, <strong>1984</strong>; group I was offered C. ciliaris grass <strong>and</strong> group II was offeredC. ciliaris grass<br />
-s-Stylosanthes hamata (in the ratio of 1:1 fresh basis) which were harvested from the same<br />
plot. The body weights of the animals were recorded at fortnightly intervals. At the end of<br />
the feeding experiment digestibility trial was conducted to determine the DM intake, <strong>and</strong> the<br />
digestibility coefficients of different nutrients to assess the nutritional status of these harbages.<br />
The haematological constituents were determined at the start <strong>and</strong> end of the experimental<br />
feedi~g period.<br />
The Cenchrus grass supplied 5.2% CP, 42.43% CF <strong>and</strong> 10.73% Ash <strong>and</strong> Cenchrus<br />
Stylo mixture furnished 8.82% CP, 39.94% CF <strong>and</strong> 9.34~~ Ash. Digestibility coefficients of<br />
nutrients of feeds have been presented in table the data about nutrient intake, live weight gain,<br />
haemoglobin <strong>and</strong> packed cell volume of blood of experimental animals has been presented in<br />
table.<br />
On the perusal of data in tables 45 <strong>and</strong> 46 it was observed that there was no difference<br />
in dry matter intake <strong>and</strong> digestibility in group I <strong>and</strong> II. However the crude protein <strong>and</strong> NFE<br />
contents <strong>and</strong> their digestibility were found higher, in mixed herbage as compared to C. ciliaris<br />
grass alone. Crude fibre <strong>and</strong> ether extract intake <strong>and</strong> their digestibility csefficients were found<br />
higher in group (C. ciliaris grass) as compared to group II from the mixed herbage of<br />
( 204 )
C. ciliaris <strong>and</strong> S. hamata. Availability more digestible crude protein (group II) resulted in<br />
their better performance than group-l (pure C. ciliaris grass}.<br />
The average growth retes recorded in group I <strong>and</strong> II were 210 g <strong>and</strong> 2.75.5 g/head/day<br />
respectively. The haemoglobin <strong>and</strong> packed cell volume of blood was found- to be 10:25% <strong>and</strong><br />
43.3 per cent in group I <strong>and</strong> 1O.62~~ <strong>and</strong> 13.4 per cent in group II. '<br />
The results have shown that the performance of growing calves was better when fed<br />
mixed herbage of C. ciliaris grass <strong>and</strong> Stylosanthes hamata (1:1 ratio as compared to C.<br />
ciliaris grass alone).<br />
3. Evaluation of Sehima neroosum dominated natural grassl<strong>and</strong> for growing cross bred calves.<br />
Eight cross-bred calves (94-155 kg live weight) were allowed for grazing in Sehima<br />
neroosum dominated natural grassl<strong>and</strong> from 1.9.84 to 15.12.84. The utilization of herbage<br />
from the above mentioned grassl<strong>and</strong> was found to be 1.16 per cent. The average dry matter<br />
consumption by the animals was found to be 2.52 k~/IOO,kg live weight. The average live<br />
weight gain was found to be 280 g/head/day in cross bred calves grazing S. neroosum<br />
dominated natural grassl<strong>and</strong> without any supplementation.<br />
Table 45<br />
Digestibility coefficients of different nutrients of feeds <strong>and</strong>nutritive value.'<br />
Group/Type of feed<br />
Digestibility coefficients<br />
Nutritive value<br />
Dry Crude Crude<br />
D.C.P.<br />
matter pro- fibre Ether NFE %<br />
tein<br />
extract<br />
T.D.N.<br />
%<br />
I C. ciliaris grass<br />
53,00<br />
62,83 46.44 49.07. 2,42<br />
50.32<br />
II C. ciliaris grass],<br />
st ylosanthes<br />
hamata (I: I)<br />
54.10 60.90<br />
48.57 34.56 58.24 5.40<br />
50.08<br />
205' )
Table 46:<br />
Nutrient intake, live weight gain, haemoglobin <strong>and</strong> packed cell volume of blood.<br />
Group D. M. Nutrients intake Live weight Haemoglobin PCVof<br />
of intake gain content blood<br />
animals per D,C,P, T.D,N.<br />
100 kg g/lOO kg %kg/ (g) (gjhlood) (%)<br />
B. \',7. B.W. B. wt,<br />
1 2.34 56,63 1,18 210,0 10.25 43,3<br />
5 2,24 120.96 1.12 275.5 10.62 43,4<br />
~~ B, W, = per 100 kg body weight.<br />
4, Evaluation of two varieties of hybrid napier grass (variety <strong>IGFRI</strong>-3 <strong>and</strong> NB-21) for<br />
growing cross-bread calves,<br />
Eight cross-bred calves (l04-144 kg body weight) were divided into two groups of<br />
four animals each. Group I was offered hybrid napier grass var. NB-21 (harvested at flowering<br />
stage in the months of October, November 84) <strong>and</strong> group 4 was offered hybrid napier.<br />
IGFRl-3 ad-lib at the same stage of growth. A digestibility trial was conducted for 5 days<br />
after a preliminary feeding period of IS days.<br />
The dry matter intake <strong>and</strong> digestibility was found to be higher (2.24 kg/lOO B. W,<br />
<strong>and</strong> 51.4% respectively in group II fed with hybrid napier No. 3 as compared to the its<br />
group fed with hybrid napier NB-21 (D M. 1. 1.22 kg/100 B. W. D. M. Dig.<br />
26.7%). The animals of group I lost their body weight whereas the animals of<br />
group II maintained their live weight. The further analysis is in progress to determine the<br />
proximate composition <strong>and</strong> nutritive value of the two varieties of hybrid napier grass.<br />
The results indicated that h)brid napier grass (variety NB-21 <strong>and</strong> <strong>IGFRI</strong>-3) need<br />
supplernentat ion.<br />
2.5 Evaluation of forages fOI milk production in catt:e,<br />
(V. S. Upadhyay)<br />
1. Evaluation of Bermuda grass pasture for milk production.<br />
~ 205 )
An experiment was conducted to evaluate unfertilized Bermuda grass pasture for milk<br />
production under grazing condition. Three milch cows of l st lacraticn having on an average<br />
250 kg live weight <strong>and</strong> had completed 77 (65-95) days of lactation were used as experimental<br />
animals. All the animals were given concentrate @ 1 kg/animal/day for let down of milk in<br />
addition to grazing of Bermuda grass paddock for 8 hours daily.<br />
The animals produced or. an average 4.0-5.0 kg milk daily containing on an average 5.6<br />
per cent fat, 14.14 per Ce1'1t total solids <strong>and</strong> 8.51 per cent solid-not-fat with satisfactory live<br />
weight gain.<br />
The animals of above mentioned experiment were further continued on same pasture<br />
but I kg concentrate was replaced by 10 kg Leucaena foliage. Two weeks adjustment period<br />
was followed by two weeks experimental period. The results of the experiment showed that<br />
animals producing upto 4 kg milk per day could be maintained on unferulized Bermuda grass<br />
pasture plus 10 kg Leucaena foliage during the month of September.<br />
2. Evaluation of Iseilema laxum grass at mature stage for milk production.<br />
An experiment was conducted to evaluate the natural Iseilema laxum grass at mature<br />
stage for milk production under stall fed condition. Three first calvers in their mid stage of<br />
lactation were used as experimental animals. The experiment lasted for two week adjustment<br />
followed by three weeks test period. The animals were given I kg concentrate per animaljday<br />
for let down of milk in addition to ad lib feeding of unchaffed grass.<br />
The average dry matter intake, digestibility, milk yield <strong>and</strong> fat percentage is given<br />
below:<br />
A.N.<br />
Total<br />
DMI/day<br />
(kg)<br />
DMI/<br />
100 kg<br />
WL<br />
(kg)<br />
DMD<br />
0/<br />
/0<br />
Av. milk<br />
yield<br />
daily<br />
(kg)<br />
Av.<br />
%<br />
fat<br />
190<br />
8.92<br />
3.40<br />
56.78<br />
3.08<br />
7.1<br />
213<br />
8.74<br />
3.45<br />
51.27<br />
3.18<br />
5.1<br />
184<br />
10.52<br />
3.74<br />
57.50<br />
2.98<br />
5.6<br />
( 207 )
The animals produced on an<br />
weight during the month of October.<br />
average 3 kg milk per day without any gain or loss in live<br />
The animals of above mentioned experiment were further continued on Lseilema feeding<br />
during the month of November ~ut an additional 5 kg Leucaena foliage per animal/day was<br />
given to compensate the loss of nutrients due to the "averaging stage of maturity of the grass.<br />
One week adjustment followed by two week .est period was allowed in this experiment.<br />
weight.<br />
Animals produced on an average 2.7 kg milk per day without gain or loss in live<br />
Thus, the above findings indicate that animals producing upto 5 kg milk in The<br />
beginning ofJuly could be maintained on Bermuda grass pasture with supplementation of 1 kg<br />
concentrate of 5-10 kg Leucaena upto September. Mature naiur..l Iseilema grass could sustain<br />
upto 3 kg milk per day upto November with supplementation of 1 kg concentrate <strong>and</strong> 5 kg<br />
Leucaena foliage per animal per day.<br />
3. Evaluation of mixed forage silage <strong>and</strong> green hybri,d napier for milk production.<br />
A mixed forage silage prepared from unchafl'ed hybrid napier para grass "plus (proportion<br />
non-specified) obtained.. from post-harvest technology unit (T 1<br />
) <strong>and</strong> green hybrid<br />
napier obtained from system synthesis of karari block (T 2 ) were evaluted for milk production<br />
using eight lactating cows, The animals were divided into two groups consisting of four animals<br />
in each group based on their .lactation number <strong>and</strong> milkyield etc, ·Animals of treatment lst<br />
group were given 3 kg dry grass, 1 kg concenrrate+ad 'lib silage ~hile animals of treatment<br />
lInd group received 3 kg dry grass+l kg concentrate-l-ee" lib green hybrid napier (unchaffed).<br />
Results indicate that animals of silage group produced on an average 3.4 kg milk/animal<br />
/day while animals of hybrid napier group produced 4.8 kg milkjarumaljday. However,<br />
animals of both the groups lost their live weights. Animals of hybrid napier group consumed<br />
about 1 kg dry grass per day.<br />
4. Evaluation of dry glass plus concentrate for milk production.<br />
An experiment was conducted to evaluate the feeding value of mature dry grass ad lib<br />
pk,s concentrate during summer Season. The concentrate was given @ 1 kg for maintenance<br />
plus 1 kg for every two kg milk produced. Four milch cows giving 3-6 kg milk/day <strong>and</strong> of<br />
late stage of lactation used as expr rimenta l animals.<br />
208' )
The dry mateer intake, digestibilty, milk<br />
napier group is given below:<br />
yield <strong>and</strong> fat percentage of animals of hybrid<br />
DMII Av. Eve DMII DMD Av. daily Av.<br />
A. No. day weight 100 kg % milk yield fat<br />
(kg) (kg) LW (kg) %<br />
(kg)<br />
60 8.03 320 2.50 31.63 5.2 3.9<br />
66 7.91 272 2.90 27.82 5.1 4.0<br />
95 8.06 395 2.04 19.35 5.9 4.4<br />
199 7.92 282 2.81 33.96 3.9 4'4<br />
------<br />
The details of the experimental animals <strong>and</strong> results are given below:<br />
Lact Days Initail Final Amount of Av. milk<br />
A. No. No. after live LW concen- yield<br />
calv- weight (kg) trate daily<br />
ing (kg) given (kg)<br />
daily (kg)<br />
-------<br />
60 VI 68 309 312 3 3.6<br />
66 III 131 270 254 4 4.7<br />
95 IV 330 380 365 4 4.9<br />
199 I 247 278 257 3 3.1<br />
Results indicated that animals produced on an average 4.1 kg milk per day but coulc<br />
not maintain their live weights.<br />
( 209 )
5, Evaluation of fodder oat at dough stage for milk production,<br />
An experiment was conducted to evaluate fodder oat at dough stage (unchaffed) for<br />
milk production, All the animals were given 1 kg concentrate daily for let down of milk,<br />
The details of the experimental animals <strong>and</strong> milk yield is given bolow ~<br />
Lact. Days Live wt, Live wt, Av. milk<br />
A. No. No. after in the in the yield daily<br />
calving beginning end of (kg)<br />
of cxpt. (kg) expt. (kg)<br />
95 IV 230 384 385 6.9<br />
107 IV 240 328 327 4.0<br />
52 VI 210 297 299 5.3<br />
66 III 30 251 251 6.3<br />
Results indicated that animals could produce upto 7 kg milk per day with the system<br />
of feeding followed in present case if genetic potential of animal is not a limiting factor.<br />
PAR 2.3<br />
Evaluation of pastures <strong>and</strong> top feeds for small ruminants,<br />
(V, S. Upadhyaya)<br />
1, Evaluation of Leucaena leaves for growing Barbari kids,<br />
An experiment was repeated to confirm the previous year's finding on the feeding value of<br />
Leucaena leaves for growing Barbari kids. Five growing kids between the age group of 3.5 to<br />
. re u~c:u
The dry rnatter intake, digestibili ty, urine output <strong>and</strong> live weight gain are as given<br />
below:<br />
DMI DMD Urine In ual l-rnal Total LWG/<br />
A. No. 100 % output LW LW LW day<br />
kgLW per per day (kg) (kg) gain (g)<br />
(kg) day (nil) (kg)<br />
(rnl)<br />
------<br />
298 3.77 61.45 709 17.2 20.7 3.5 39<br />
299 4.50 56.00 424 13.4 17.6 4.0 44<br />
300 4.42 55.43 500 11.8 14.0 2.2 24<br />
301 480 59.85 315 7.2 9.5 2,.3 25<br />
302 4.63 62.31 350 8.3 10.9 2.6 29<br />
Resuts indicated that kid Nos. 298 <strong>and</strong> 289 performed better than rest three kids<br />
which were of lower age group <strong>and</strong> not fully developed ruminants. No apparent ill effects of<br />
Leucuena feeding as sole diet were recorded. Thus, results confirm the previous years finding<br />
that growing kids can gain live weight satisfactorily without any adverse effect, even as a<br />
sale diet, if about 1 year old leaves are fed'<br />
The mimosine percentage in feed<br />
urine was neglible.<br />
offered was about 2 per cent <strong>and</strong> IHP excretion in<br />
2.8 (A) Nutritional studies of some tropical forage with special reference to Sesbania<br />
aegyptica<br />
(A. Rekib)<br />
1. Chemical composition <strong>and</strong> in vitro dry matter digestibility of Sesbania aegyptica as<br />
affected by seasonal changes.<br />
Leaf samples of S. aegyptica were collected round the year at hi-monthly intervals, to<br />
study the effect of seasons on the chemical composition <strong>and</strong> in vitro dry matter digestibility<br />
values. They were dried <strong>and</strong> grounded co pass 40 mesh seive, The' leaf meal was then alialysed<br />
by following the stan dared methods. The detailed results are given in table 47,<br />
( 211 )
Table 47<br />
Chemical composition <strong>and</strong> IVTDMD as influenced by seasonal changes.<br />
(
From the chemical composition detailed in the above table it is indicated that this<br />
fodder could be harvested for maximum nutrient content either in January or in July. But<br />
being a tropical shrub it would be advisable to harvest S. aegypt ica in the month of July.<br />
2. Chemical composition <strong>and</strong> in vitro dry matter digestibility of some tropical pasture<br />
legume in comparison with S. aegyptica.<br />
Sesbania aegyptica, 7 entries of siratro; Stylosanthes hamata, S. gracilis S. oiscosa,<br />
S. scabra (40205) <strong>and</strong> S. scabra (40289) were harvested <strong>and</strong> dried in < hot air oven. These<br />
were then grounded to pass 60 mesh sieve. D~tail~d chemical composition. in vitro true dry<br />
matter digestibility <strong>and</strong> % digestibility of N OF was determined <strong>and</strong> presented in<br />
table 48.<br />
Perusal of the data in table 48 shows that S. aegypt ica has higher level of protein <strong>and</strong><br />
lower levels of lignin, cellulose <strong>and</strong> other structural corbohyr'rates, The IVTOMD value<br />
also was higher in Sesbania than the other forages.<br />
3. Chemical composition <strong>and</strong> in vitro dry matter digestibility of fodder tree leaves.<br />
Leucacna Ieucocephcla <strong>and</strong> Sesbania aegyptica are considered to be important fodder<br />
trees/shrubs grown in the humid tropics. These two species could be fed to the livestok primarily<br />
as a protein supplement. It was, therefore. considered to compare their nutritive value<br />
when grown <strong>and</strong> harvested under identical conditions.<br />
Both L. leucocephala <strong>and</strong> S. oegyptica grown in the same plot <strong>and</strong> their leaves were<br />
harvested in March, 84, dried at 800C <strong>and</strong> grounded to pass 60 mesh shieve. Detailed chemical<br />
composition <strong>and</strong> in vitro true dry matter digestibility were determined.<br />
Average chemical composition, in vitro true dry matter digestibility <strong>and</strong> % digestibility<br />
of cell wall fraction are presented in the table 49. The results indicated that S. aegyptica<br />
was superior to L. leucocephala.<br />
4. Comparision of the nutritive value of S. aegyptica with cultivated legume fodders.<br />
Sesbania aegyptica was found to contain higher percentage of essential nutrients, but in<br />
some experiments, conducted earlier with growing goats, it gave lower body weight gain than<br />
berscem fodder.<br />
In order to see if there is any basic difference in these chemical constituents, this<br />
experiment was uidertaken.<br />
213
Table 48 Comparison of chemical composition <strong>and</strong> IVTDMD of Sesbania aegyptica with<br />
tropical pasture legumes.<br />
Parameter<br />
species of torage<br />
S aegyptica Sirarro Stylo<br />
gracilis<br />
Others<br />
Dry matter (%)<br />
Crude protein<br />
NDF<br />
ADF<br />
Lignin<br />
Cellulose<br />
2390<br />
25.04<br />
30.02<br />
19.91<br />
8.90<br />
11.22<br />
15.70<br />
1968<br />
50.26<br />
49.19<br />
16.53<br />
29.64 to<br />
32.66<br />
36.2 41.25-47.61<br />
11 39-12.57<br />
58.51<br />
42.96<br />
9.63-12.55<br />
---------------------------------<br />
Table 49<br />
----------------;:-----------------<br />
S. aegyptica<br />
C. r,<br />
'NDF<br />
Cell content<br />
ADF<br />
~igrrin<br />
Cellulose<br />
22.8 16.9<br />
Ash<br />
JVTDMD<br />
~ 'Die. of NDF<br />
\:
Leaf samples of S. aegyptica COII'P~:J <strong>and</strong> berseem fodder were collected, dried at 800C<br />
<strong>and</strong> processed further for detailed chemical analysis <strong>and</strong> determined their in vitro true dry<br />
matter digestibility.<br />
Crude protein varied from 14.59-22.80 with an average value of 18.49%. Maximum<br />
CP% was recorded in S. aegyptica <strong>and</strong> cowpea fodder had lowest content of crude protein<br />
(14.59%). Thus S. aegyptiaca was considered better than other two legume fodders.<br />
Cell well (NDF) <strong>and</strong> cell contents ratios are considered to be of much nutritional<br />
significance. Greater quality of cell contents is always associated with greater utilization. In the<br />
present experiment both S. aegyptica <strong>and</strong> berseern fodder were found to contain 31.21 <strong>and</strong><br />
32.33% NOF <strong>and</strong> 68.79 <strong>and</strong> 67.66~~ cell contents respectively while cowpea contained higher<br />
NOF content.<br />
Fraction of cell wall (Lionocellulose (AOF), lignin cellulose <strong>and</strong> Merni cellulose)<br />
content was further fractionated to know greater details about these legume forages:<br />
In the present study. S. aegyptiaca found to contain lowest ADF (19.78) <strong>and</strong> higher<br />
lignin (7.61) levels as compared to two other fodders, Cellulose content (AOF-lignin) was<br />
found to be very low, On the contrary, cowpea contained highest AOF (39.32) <strong>and</strong> cellulose<br />
(32.18). Berseern fodder contained lowest amount of lignin <strong>and</strong> Hemicellulose (4.37 & 5.32)<br />
<strong>and</strong> was therefore considered superior to the other two fodders.<br />
Ash <strong>and</strong> silica: Little variation in the ash <strong>and</strong> silica content of these three fodders was<br />
recorded. The average value of ash <strong>and</strong> silica was found to be 13.52 <strong>and</strong> 0.75% respectively.<br />
It has also been observed that the acid soluble mineral content was quite high (12.77%).<br />
In vitro true dry matter digestibility (IVTOMO) : It was sound that there was not<br />
much difference in the IVTOMO value of these three legume forage. Average value was 83.12<br />
<strong>and</strong> cowpea· contained slightly lower IVTOMO'value (80.03). These observations show that<br />
all the three legume forages are highly digestible (in vitro).<br />
NOF digestibility: In the present experiment NOF digestibility of cowpea was found<br />
to be higher (61.75) than S. aegyptiaca <strong>and</strong> berseem fodders.<br />
S. Chemical composition <strong>and</strong> in vitro digestibility of low grade roughages.<br />
Being a cereal producing country, large quantities of straws are produced in the country,<br />
They are fed to the ruminant as a major feed resource,<br />
215 )
In this experiment detailed chemical <strong>and</strong> in »it ro digestibili ty of 5 cereal straws was<br />
determined <strong>and</strong> presented in the table 50.<br />
Table: 50<br />
Parameters W. bhusa Oat Paddy Sorghum Mixed Average<br />
straw straw kadbi grass<br />
-_. ._--_.- ----------------<br />
Crude protein 2.81 6.52 3.65 5.30 5.35 4.7<br />
NDF 78.50 66.40 69.70 77.4 79.8 737<br />
Cell content 21.50 33.60 30.30 25.6 20.2 26.3<br />
AOF 52.40 40.70 53.70 50.2 48,6 49.1<br />
Lignin 8'40 5.59 5.82 8.96 9.50 7.7<br />
Cellulose 44.00 35.00 47.90 41.3 39.0 41.5<br />
Hemicellulose "26.1 0 25.60 15.90 24.1 31.2 24.6<br />
Ash 9.99 6.64 18.00 10.8 9.52 11.0<br />
Silica 6.85 235 14.02 5.88 6.59 7.1<br />
IVTDMD 61.00 68.90 62.80 61.0 50.5 60.8<br />
% Dig. ofNDF 50.3 53.20 46.57 47.6 37.9 46.9<br />
From the above table, oat straw was considered to be superior to other straws/grass.<br />
It.is rich in CP, cell content <strong>and</strong> in vitro digestibility of dry matter as well as NDF.<br />
Wheat bhusa, paddy straw <strong>and</strong> sorghum kadbi could be grouped togather though<br />
sorghum contained greater quantity of crude protein while paddy straw was found to have<br />
high of silica, an antinutrition factor.<br />
Mixed dry grass though contains. highest amount of crude protein also contains other<br />
antifactors in greater quantity as well. IVl DMD <strong>and</strong> % digestibility of NDF is lower than<br />
other crop residues.<br />
( 216 )
6. Comparison of nutritive value of berscern fodder <strong>and</strong> its bhusa.<br />
In order to know the nutritive value of bersezm bhusa in detail, chemical composition<br />
<strong>and</strong> in viiro true dry matter digestibility value was determined <strong>and</strong> compared with that of the<br />
berseem fodder harvested from the same field in January <strong>1984</strong>:<br />
Crude protein content of berseern bhusa was found to be 8.68 <strong>and</strong> that the fodder was<br />
18.09%. This was considered to be well within the critical level of CP% as was reported<br />
earlier from this laboratory.<br />
7. Comparison of nutritive value of berseern bhusa <strong>and</strong> cereal straw.<br />
In the present experiment, chemical composition in vitro true digestibility of dry matter<br />
<strong>and</strong> that of cell wall fraction of berseern bhusa <strong>and</strong> five other cereal straws was determined <strong>and</strong><br />
detailed in table 51.<br />
Table 51<br />
----'-- - ~ ".....'-<br />
Feed CP NDF Cell ADF Lignin Ce:lIu- Hemi Ash<br />
content lose cellulose<br />
Berseern bhusa 8.7 64.9 35.1 52.0 12.3 39.7 12.9 11.2<br />
Cereal straws 5.7 73.7 26.3 49.1 7.7 41.5 24.6 11.0<br />
(Average of 5) Silica IVTDMD % dig. of ADF<br />
Berseem bhusa 2.1 57.0 33.7<br />
Cereal straws (Average of 5) 7.1 60.8 49.9<br />
----<br />
Results shows that berseem bhusa contains 8. 7~% crude protein which is considered<br />
sufficient for providing the maintenance r-quirernen t of a ruminant. It was also found to<br />
contain lower amount of NDF, hemicellulose <strong>and</strong> silica with high cell contents than that of<br />
cereal straws. But it contained higher amount of ADF <strong>and</strong> lignin. This however, was quite,<br />
expected since legume forages are known to contain higher amounts of lignin <strong>and</strong> ADF. It was<br />
found that the IVTDMD <strong>and</strong> % digestibility of NDF of berseern fodder was lower than that<br />
of cereal fodders. This might be due to high lignin content of berseern bhusa which might have<br />
inhibited in vitro digestibility of both dry matter <strong>and</strong> cell wall fractions.<br />
8 Nutritive evaluation of Stylo species as influenced hy phosphatic fer tillzer<br />
appl lea tion,<br />
(A. Rekib <strong>and</strong> K. C. Kanodia)<br />
Nutritional evaluation of 6 species of Stylo was done in collaboration of OM Division<br />
when they were grown with three phosphate levels <strong>and</strong> harvested in February <strong>and</strong> September,<br />
<strong>1984</strong>. From the available data it may be stated that phosphatic fertilization did not influence<br />
significantly the chemical composition <strong>and</strong> nutritive value of Stylo species but the differences<br />
between specie'> <strong>and</strong> month of harvest were apparent,<br />
PAR 6.1 Economic exploitation of weeds.<br />
(B. K. Bhadoria <strong>and</strong> R. K. Gupta)<br />
1. Investigation on Rhyniosia minima.<br />
( 217
Rhyncosia minima is a widely occur.ng forage legume in natural grassl<strong>and</strong> area. Detailed<br />
chemical investigations were undertaken to characterise its chemical constituents to assess<br />
their effect on utilization of this forage by livestock. Rhyncosia minima was found to contain<br />
15.9% of CP hentricecontane myricyl sp alcohol, B-sito, sterol, B-si to sterol-D glucoside,<br />
Isovitexin, Vitexin, Vicenin-Z <strong>and</strong> pinitol, In continuation to these studies, further investigations<br />
were undertaken on the amino acid make-up of leaf-protein. The powdered leaves<br />
of Rnyncosia minima were defatted <strong>and</strong> extracted with 70% ethanol in soxhlet extractor. The<br />
solvent was removed under pressure <strong>and</strong> extractive was disolved in minimum quantity of butanol.<br />
It was examined on paper chromatography using Butnol. Acetic acid-water (4:1.5) <strong>and</strong><br />
phenol saturated with ammonia. Ninhydrin in acetone was used as detect ing agent. The<br />
amino acids were identified by comparison of their Rf value with those of reference amino<br />
acids, The identified amino acids were glutamic acid, aspartic acid, glycine, alanine, Valine,<br />
Threonine serine, histadine, Isoleucine, phenyl alanine, proline <strong>and</strong> arginine.<br />
The bound amino acids were also examined, on paper chromatography, after hydrolysing<br />
leaves powder with 6 NHCl; 80~~ Fomic acid (1:1) in sealed tubes at 100~ till it gave<br />
the -ve biuret test. The hydrolysate after usual work up, showed the presence of Valine,<br />
arginine. glutamine, metheonine, alanine, Isoleucine, leucine, lysine, aspartic acid, trytophan.<br />
preline <strong>and</strong> cystine.<br />
Rhyncosia minima was found to possess most of the essential<br />
acids required for nutrition. The compounds of flovinoid group<br />
have been reported to cause reproductive disturbances.<br />
<strong>and</strong> non-essential amino<br />
were also present, which<br />
PAR-6.2 Investigation on non-conventional feeds <strong>and</strong> additives.<br />
(t~. K. Gupta <strong>and</strong> B. K. Bhadoria)<br />
I. Investigation on Indigot'era astragalina.<br />
In continuation to earlier studies, a detailed investigation was conducted on forage<br />
legume Indtgoter« ast ragalina commonly occurring in natural grassl<strong>and</strong>s. It contained 13.78%<br />
C. P., 2'08% Ca <strong>and</strong> 0.18% P. The plant did not contain oxalates, nitrates or nitro compounds,<br />
of indospicine (a hepatotoxin present in I spicatav The foliage did not give positive<br />
tests for cyanogenic glycosides <strong>and</strong> saponin. Extraction of powdered dry leaves (6 kg) with<br />
rectified spirit <strong>and</strong> fraction with petroleum ether, benzene, ethyl acetate <strong>and</strong> exhaustive chromotography<br />
on silica gel columns yielded hentriacontanol, triacontanol fatty esters. ethylcaffeate,<br />
P-sitosterol glucoside, free B-sitosterol, gallic acid, quercetin <strong>and</strong> apagenin. These<br />
organic constituents were isolated <strong>and</strong> identified using physico-chemical instrumentation<br />
techniques. However, none of these constituents are likely to possess any physiological<br />
action at the existing level. This leguminous forage possesses good potential for utilization<br />
as livestock feed.<br />
( 218
DIVISION OF AGRICULTURAL ENGINEERll\I~<br />
AE-l.-PROCESSING, CONSERVATION, STORAGE AND HANDLING OF FORAGE<br />
CROPS AND SE3DS.<br />
1.1 Mechnical contrivances in hay quality amelioration.<br />
(Jai Singh)<br />
Equilibrium moisture content:<br />
Equilibrium moisture contents (EMC) of a mixed st<strong>and</strong> range grass Het eropogon contortlls-52.7%,<br />
Sehi rna nervosurn-20.2% range grass <strong>and</strong> Dichant Mum annulatllm-ll.2%) <strong>and</strong> ber<br />
Seem (Trifolium alex<strong>and</strong>riumy were determined at temperatures <strong>and</strong> relative humidities ranging<br />
from 303-3330K, 30-80% <strong>and</strong> 293-308 0K, 30-80%. The desorption isotherms for grass <strong>and</strong><br />
berseem showed conformity with the Henderson's equation<br />
Where,<br />
rh-eequilibrium moisture content of air which is in contact with the material, in decimal<br />
T=absolute temperature at which equilibrium is reached. OK<br />
Me=equilibrium moisture content of the material pel cent, dry basis.<br />
<strong>and</strong> C <strong>and</strong> n=emperical constants depending on the material <strong>and</strong> the temperature at with<br />
drying is done.<br />
The values of constants C <strong>and</strong> n, obtained through the least square method, showed<br />
temperature dependence for both the crops. The value of C increased with the increace in<br />
temperature, whereas the value of n followed a reverse trend. The following exponential<br />
equations of the form :<br />
<strong>and</strong> were determined by linear regression of calculated values of C <strong>and</strong> n for<br />
different air temperatures in respect of both the products.<br />
For grass,<br />
C=7.6129 X 10--15XeO'0701 T , .....2<br />
r=0.990<br />
219
n=27.3231e--O,oo88T .<br />
For berseem,<br />
.... . •...3<br />
r=0.958<br />
C=L8223xlC--32xe O·2126T ....•• ,4<br />
r=-0.968<br />
n=-=1.2078 x 166 xe--O'0462~<br />
..••..•5<br />
r=-0.968<br />
putting the respective values of C <strong>and</strong> n in equation 1, generalised expressions for the<br />
des.Jrption isotherms of grass <strong>and</strong> berseem were obtained, The correlation coefficient between<br />
observed <strong>and</strong> predicted values for grass <strong>and</strong> berseem were 0.996 <strong>and</strong> 0.994, respective] y. T'he<br />
Chi squar test showed highly non-significant variation at 0.99 probability level.<br />
The higher EMC values of grass upto 60%rh <strong>and</strong> of berseern beyond that indicated that<br />
desorption isotherm was influenced by the inherent plant characteristics.<br />
Vapour pressure of forage moisture:<br />
The values of vapour pressure of grass <strong>and</strong> berseem moisture were calculated for ihe<br />
range of temperature <strong>and</strong> moisture content from 30-60 0C, 10-40/~ (d.b.) for grass <strong>and</strong><br />
20-350C, 15-40~{, for berseern. The vapour pressure of both the product increased with the<br />
temperature <strong>and</strong> moisture content.<br />
Latent heat of vaporisation of forage moisture.<br />
The plots of vapour pressure of grass <strong>and</strong> berseem moisture against the saturation<br />
pressure of water vapour (taken from steam table at the same temperature) at each level of<br />
moisture content yielded straight lines. These plots are called othrner plots, <strong>and</strong> thus are<br />
expressable by the equation of the from.<br />
where,<br />
log Pf=LjLJ log ps+C . , .••. ,6<br />
Pr=Vapour pressure of forage moisture. kgjcm2,<br />
Ps=Vapour pressure of water vapour, kgjcm2.<br />
LjLI=slope of the straight line (ratio of the heat of vaporisation at' forage moisture to<br />
that of free water)<br />
<strong>and</strong>, C==intercept of the straight line on Yaxis.<br />
220 )
In all cases, the latent heat ratio (LjV) was found greater than unity showing that the<br />
heat of products moisture is higher than that of water. The value of LjLl decreased with the<br />
increased forage moisture. The latent heat ratio at a given moisture content was higher for<br />
grass than that of berseem. The plot of LjLt Vs. M. C. showed linear relationship on semi-log<br />
scale thus showing a relationship of the form of :<br />
For grass<br />
LjLl=I+a exp (b'Mj 7<br />
Putting the computed values of constar t : a <strong>and</strong> b the equation became:<br />
-0.0657Me<br />
L,L'=1+ 1.2094 e<br />
(r=0.986)<br />
.. 8<br />
For berseern<br />
-0.0595Me<br />
LjLl=1+0.8402 e •...• 9<br />
(r=0.995)<br />
The LjLl of grass is higher than that of berseern at all the moisture contents, but the<br />
difference between the two decreased with the increase of M.C. The above relationships between<br />
LjU <strong>and</strong> EMC showed an excellent correlation (r=0.994 ana 0.986 <strong>and</strong> Chi square 0.99)<br />
between the observed <strong>and</strong> predicted values of LjLl.<br />
Specific heat<br />
The following relationship has been developed to predict the specific heat of grass (SIl)<br />
at different moisture contents (m),<br />
Sg+0.0076 (m+32.1447) 10<br />
(r=0.995)<br />
Effect of air flow <strong>and</strong> packing density of hay on staiic pressure.<br />
The resistance of grass <strong>and</strong> berseem hay to air flow rates of 0.03-0Am3jsec-m2 <strong>and</strong><br />
packing densities of 26.4-100 kgm-- a have been determined. The results indicated that the<br />
static pressure-air flow relationship tend to fit the model.<br />
1.2 To deter mine the material <strong>and</strong> processing characteristics of grass <strong>and</strong> grass silage.<br />
(Jai Singh)<br />
( 221
Density of stored material <strong>and</strong> degree of filling are the main factors determining the<br />
proportionate. cost load on the silage. The chop length, height of filling <strong>and</strong> DM content affect<br />
.the silage density. The following relationship have been developed for pit silo.<br />
D=638.5 X 29.2 h<br />
D=290.75 +27.94 h+5.78L-6.05 M<br />
Where<br />
D=densiry of silage, kgjm3 ; h=height of filling, M=dry matter content, %<br />
The results presented revealed that higher density, both on the fresh <strong>and</strong> dry weight<br />
basis can be obtained in pit silos. It was also observed that as the chop length decreased<br />
chopper capacity reduced significantly but the density did not increase to that extent.<br />
1 3 Development of Processes <strong>and</strong> techniques for herbage pelleting <strong>and</strong> waferlng ,<br />
(lai Singh)<br />
The main task of the laboratory investigation was to establis.i the optimum specific:<br />
pressure <strong>and</strong> moisture content of wheat Bhusa <strong>and</strong> grasses for wafering, magnitude of ~xpansian<br />
<strong>and</strong> other parameters required for designing a wafering machine.<br />
Wheat Bhusa : Wafers were prepared at four moisture contents, 10.12,12.22,15.22,<br />
22.22 <strong>and</strong> 46.67 per cent. w. b. The results indicated that in the given range of MC the<br />
expansion increased with the M. C. The h<strong>and</strong>leability test indicated that the wafers prepared<br />
at 10.12, 22.22 <strong>and</strong> 46.67% MC disintegrated on slight h<strong>and</strong>ling <strong>and</strong> the water formed at<br />
15.22~~ MC disintegrated at 3rd fall. Heating of bhusa before wafering also did not improve<br />
the water stability. Addition of molasses at the rate of 5% <strong>and</strong> 22.22% MC gave the least<br />
reduction in density (28.57%).<br />
Grass: None of the wafers prepared at<br />
disintegrated on h<strong>and</strong>ling.<br />
different MC was found h<strong>and</strong>leable. All these<br />
AE-2. Feasibility testing of farm implements on farmers fields.<br />
(Jai Singh)<br />
The results contained on farmers fields in village Behta, Isagtrh, Lakara, Ad <strong>and</strong><br />
Kesopur of Jhansi district <strong>and</strong> Chirula of district Datia (M.P.) are detailed.<br />
( 222 )
Table: 52 Effect of temperature <strong>and</strong> moisture content 0'1 vapour pressure <strong>and</strong> latent heat<br />
of vaporisation of grass <strong>and</strong> berseern moisture.<br />
Moisture Tempe- ERH VPFM Ratio HVFM<br />
content rature % kg/cm 2 L/Ll K-cal/kg j<br />
2 3 4 5 6<br />
Grass<br />
10 30 20.38 .00879 1.7156 995.618<br />
35 31.33 .01796 990.815<br />
40 39.00 .02808 985.840<br />
45 46.67 .04560 980.952<br />
50 53.33 .06709 976.063<br />
55 60.00 .09630 971088<br />
60 66.67 .t 3541 966.1'13<br />
15 25 30.00 .00969 1.448 844.474<br />
30 51.00 .02206 840.419<br />
35 :-6.70 .03251 836.365<br />
40 62.50 .04700 .. ~32.166<br />
45 G8,33 .066.80 828.039<br />
50 71.70 .09020 823.912<br />
55 77.70 .12479 819.713<br />
60 81.00 .16450 815.514<br />
20 25 50.00 .01615 1.26 . 734.832<br />
30 68.00 .02976 731.304<br />
35 73.33 .04204 727.776<br />
40 77.50 .058.28 724.122<br />
45 81.70 .079.88 720531<br />
50 85.33 .0173~ 716.940<br />
55 87.10 .13996 713.286<br />
60 89.00 .18076 709.642<br />
30 25 73.33 .023.68 1.18 (J88.176<br />
30 85.33 .03690 684.872<br />
35 88.30 .05062 681.568<br />
40 91.30 .06866 678.146<br />
45 94.00 .09185 (J74,78l<br />
50 95.80 .12052 67L420<br />
223 )
1 2 3 4 5 6<br />
40 25 82.20 .02655 1.09 635.688<br />
30 93.80 .04057 632.636<br />
35 95.00 .05446 629.584<br />
40 97.50 .07332 626.423<br />
45 9830 .09605 623316<br />
50 99.30 .12492 620.210<br />
Berseern<br />
Jl5 20 45.40 .01082 1 372 803.992<br />
25 50.50 .01631 800.150<br />
30 57.50 .02487 796.309<br />
35 62.50 .02583 792.467<br />
20 56.50 .01346 1.234 723.124<br />
25 60.00 .01937 719.669<br />
30 65.50 .02333 716.214<br />
35 69.00 .03956 712.758<br />
20 69.~ .01656 1.138 666.808<br />
25 72.50 .02341 663.682<br />
30 76.00 .03287 660.495<br />
35 78.30 .04490 657.809<br />
40 20 , I 78.00 .01859 1.080 632.880<br />
25 80.00 .02583 629.856<br />
30 82.50 .03568 626832<br />
35 83.50 .04787 623.808<br />
0.99<br />
ERH--Equilibrium relative humidity, per cent.<br />
VPFM-Vapour pressure forage moisture.<br />
HVFM-Heat of vaporisation of forage moisture.<br />
224 )
1. Investigation of a set of improved implements on farmers fields,<br />
The set of improved implements (tillage <strong>and</strong> seeding) consisted of sabsh plough, bukhar,<br />
animal- drawn disc harrow, Igfri country plough mounted seed drill <strong>and</strong> a 3 row seed-cumfertilizer<br />
drill. The set was used in Rabi, 84 for wheat crop. It was tried in comparison to<br />
the local bukhar pat ela <strong>and</strong> sowing behind the plough. The total cost on tillage <strong>and</strong> seeding<br />
operations were Rs, 926.80, 636 80 <strong>and</strong> :02.90 per hectare in local, improved with Igfri drill<br />
<strong>and</strong> improved with 3 row drill, respectively.<br />
2. Field evaluation of animal drawn seed-cum-fertilizer drills]<br />
Igfri country plough seeding attachment: Use of the drill resulted in 9-11% higher<br />
mean values of total yield (grain -l-straw) in wheat over the traditional method of sowing.<br />
The differences, however were not statistically significant. Similar results were obtained on<br />
seed germination <strong>and</strong> establishment in Rabi, <strong>1984</strong>.<br />
4, Studies on the positional placement of seed <strong>and</strong> fertilizer.<br />
Test were conducted to investigate the effect of showing the mixture of seed <strong>and</strong> fertiiizer<br />
on germination, plant establishment <strong>and</strong> yield in both the, black <strong>and</strong> s<strong>and</strong>y loam soils<br />
under irrigated conditions. The basal doses for T 1 , T 2 <strong>and</strong> T 3 were urea 100 kg+ DAP 20 kg<br />
-l-Potash 100 kg+S.S.P. 400 kg. Urea 60 kg+DAP 20 kg-l-Potash 100 Kg+SSP 240 kg <strong>and</strong><br />
Urea 20 kg+ DAP, 20 kg+Potash 10 kg+SSP 120 kg per hectare.<br />
In addition, similar trials were conducted 00 farmers fields in wheat crop in black <strong>and</strong><br />
s<strong>and</strong>y loam soil. The farmers used a basal dose DAP varying from 50 kg per hectare.<br />
The no. of seeds germinated <strong>and</strong> established <strong>and</strong> the crop yields increased with the<br />
increase in fertilizer dose on the farmers fields The trials under controlled conditions<br />
also showed similar results regarding plant population. The data generated on farmer's fields<br />
exhibited that the seed <strong>and</strong> fertilizer can be mixed together for sowing. These findings would<br />
enable reducing the cost of seed drills.<br />
4. Development of seed drill furrow epeners for Bundelkh<strong>and</strong> soils.<br />
Two 'ypes of furrow openers (shovel <strong>and</strong> shoe type) were evaluated in comparison to<br />
Nari (Country plough bottom used for sowing purpose) both in irrigated <strong>and</strong> rain fed areas;<br />
Significant difference in plant st<strong>and</strong>. establishment <strong>and</strong> yield was noted under rainfed condition<br />
The difference under irrigated condition was not significant. Use of the extended shoe type<br />
furrow opener (similar to the desi plough bottom) resulted in 1.5-2.5 per cent higher yield<br />
gain fed black soils.<br />
( 225
AE-3<br />
EVALUTION OF EFFICIENCY OF DIFFERENT METHODS OF IRRIGATION<br />
IN RELATION TO FORAGE CROPS.<br />
3.1 Studies on the effect of different mechanical energy input level.. on the production of<br />
forage crops.<br />
(R. B. Varshney & Ja i Singh)<br />
The experiment was conducted on a s<strong>and</strong>y loam soil having 78% s<strong>and</strong>, 6.8% silt <strong>and</strong><br />
19.4% clay. The average bulk density of the soil was 1.5 gm/cc <strong>and</strong> average infiltration rate<br />
of the field was 5 em/hr. The average slope of field was O. 57~<br />
The experiment was conducted in 100 sq. M plot size. The fertilizer was applied @<br />
Urea 75 kg/ha <strong>and</strong> SSP 150 kg/ha. Seed rate was 2.5 kg/ha. The treatment consisted T 1 <br />
No tillage i. e. direct sowing with <strong>IGFRI</strong> seed drill with plank, T 2-Optimum tillage i. e,<br />
ploughing once <strong>and</strong> sowing with '<strong>IGFRI</strong> seed drill with plank, T 3-Optimum tillage i, e. ploughing<br />
twice <strong>and</strong> sowing with <strong>IGFRI</strong> seed drill <strong>and</strong> T 4 - High tillage i. e. ploughing thrice<br />
<strong>and</strong> sowing with <strong>IGFRI</strong> seed drill. The energy required for various operation is given in<br />
table 53 <strong>and</strong> the energy ratio in table 54.<br />
Table 53 :<br />
Energy for various operations (in Mega Jules)<br />
T 1 T 2 T 3 T 4<br />
(i) Operational energy per 124.0<br />
ha (bullock drawn seed drill)<br />
192.3 232.0 288!0<br />
(ii) No. of weed intensity per 400<br />
sq meter observed<br />
300 250 200<br />
(iii) Energy in weeding operation 171.0 158.2 145.5 125,0<br />
(iv) Energy in irrigation 80.0 86.8 93.0 125.0<br />
(v) Energy in harvesting 65.0 80.0 95.0 105.0<br />
(Vi) Energy in threshing, winnowing 90.0 92.5 122.5 125.G<br />
bagging & transportation<br />
(Vii) Energy per ha in fertilizer 1150.0 1150.0 1150:0 1150.0<br />
(50 kg Urea & 100 kg S.S P.)<br />
Total encrgy input 1680.0 1760.0 1838.0 1918.0<br />
226 )
~'able<br />
54 : Energy-Ratio.<br />
S!. Energy Grain Kadbi Total Ratio in<br />
No. Treatment (KJ) yield yield yield yield<br />
(q/ha) (qj ha) (qjha) Energy<br />
1. T 1 1680 8.00 5200 60.00 52.3:1<br />
2: T 2 1760 8.20 55.80 65.00 54.8: 1<br />
3. T 3 1838 8.45 60.00 68.45 56.4; 1<br />
4. T 4 1918 8.80 62.00 70.80 57.5:1<br />
On the perusal of the results from above table it is seen that the heighest yieljj total<br />
energy ratio was obtained in ploughing thrice & sowing by <strong>IGFRI</strong> seed drill.<br />
3.2 To study the effect of different slops <strong>and</strong> vegitativo cover on ruu off & soil loss.<br />
(R. B. Varshney & Jal Singh)<br />
The run off <strong>and</strong> soil loss on micro watershed (5 m X 5 m) was measured. The characteristic<br />
ofJ the area were Bulk density) 1 5 gmjcc lenghth <strong>and</strong> width ratio 1:1, type of<br />
area as range l<strong>and</strong>, Depth of soil (partly bolder <strong>and</strong> partly soil) as 30 em, soil texture as s<strong>and</strong><br />
73.8~~. silt 6.8% <strong>and</strong> clay 19.4% <strong>and</strong> drainage of the area was good,<br />
Vegita tion,<br />
3% slope: Borrerie st rice, Zizyphus retudetolia, Themada, Hetropogon, Seteria,<br />
Penicum, Dicanthium, Celocia, etc.<br />
5% slops: Sehima neroosum, Het ropogon, Seteria, Borreria, Zizyphns, Vernonia,<br />
Celosia, Themada, etc.<br />
10% slops' Celocia, Themada, Vernonia, lepidogathis, Zizyphus, etc,<br />
Effect of vegitative cover <strong>and</strong> degree of slops on run off <strong>and</strong> soil loss on 3%, 5%, 10%<br />
is given in table 55.<br />
The average run off coefficient was found 0.07, 0.11, 0.15 <strong>and</strong> the average soil loss 1.6<br />
tlha, 2.5 tlha, 43.6 tjha for 3%, 5% <strong>and</strong> slops, respectively,<br />
C 227 )
Table 55': Effect of vegetative cover <strong>and</strong> degree of slope on run off <strong>and</strong> soil loss on 3%,<br />
.----5% <strong>and</strong> 10%.<br />
It<br />
;.,.<br />
S. no. Date of run Rainfall Total rainoff Runoff eoetT- Soil loss<br />
off in em. in icent III the<br />
3°/ 5% 10% 3% 5% 10'~ 3% 5°/ 10%<br />
/0 /0<br />
1: 2.7.84 .70 .068 .098 .113 .097 .014 .16 1.2 3.6 4.8<br />
2. . 5.7.~4 .66 .009 .10 .11 .136 .15 .16 1.2 1.3 1.8<br />
3. 67.84 .42 '039 .04 .084 .08 .08 0.2 3.2 3.4 42<br />
4. 7.7.84 1.8 .082 .109 .113 .04 .06 .06 2.4 3,6 4.0<br />
5. 8.7.84 .58 .06 .09 .115 .025 .168 .198 1.2 2,6 3.0<br />
6. 9.7.84 .016 .021 .03 .05 .15 1.0 I 5 1.2 1.2 1.6<br />
7. 14.7.84 .762 .07 .009 .113 .09 .12 .148 1.2 2.8 3.9<br />
8. 18.7~84 .74 .07 .096 .110 .102 .12 .148 1.2 2.5 3.9<br />
9. 1.8.84 .70 .072 .092 .no 1.02 .138 .142 1.0 2.2 2.9<br />
10. 2.8.84 .17 .048 .062 .082 .28 .36 .48 .5 2.5 30<br />
II. 3.8.84 .50 .068 .097 .112 1..36 .194 ·.224 2.8 3.4 4.7<br />
12. 8.8.84 1.5 .084 .102 .ll5 .056 .068 .076 2.9 38 4.9<br />
13. 9.884 .08 .016 .03 .08 .12 .37 1.00 1.2 3.6 4.8<br />
14. 10.8.84 .3 .037 .042 .045 .12 .14 .15 28 3.4 47<br />
IS. 12.8.84 .65 .068 '095 .115 1.04 '14 .117 1.4 2.8 3.9<br />
16, 16,8.84 .30 .035 .042 .045 .116 .123 .15 28 3.6 4.8<br />
11. 17.8.14 1.15 .082 .895 .110 .07 .38 .09 2.8 3.8 4.8<br />
18. 19.8.84 .16 .045 .062 .083 ,106 .112 .118 1.2 2.5 3.6<br />
19. 21,8.84 .32 .034 .036 .038 .266 ,35 .45 1.2 2.4 3.3<br />
20. ,22.8.84 .18 .048 ,062 .082 .136 ,196 .23 1.3 1,5 1.9<br />
21. 23.8.84 .50 .068 .098 .115 .136 .196 .23 1.3 1.5 1.9<br />
22. 25.8.84 .24 .024 .03 .056 .3 .095 .19 1.4 1.6 1.9<br />
23. 26.8.84 .4 0.38 .042 . .068 ,09 .052 06 1.9 2.5 3.6<br />
24. 28-:8.84 1.8 .094 .103 .118 .052 .089 .148 2.0 3.0 3.6<br />
25. 29.8.84 . 1.01 .090 .12 .15 .089 .100 .124 2.0 2.8 3.7<br />
26. 30.8.84 .37 .037 .042 .046 .100 .09 .200 1.2 2.7 3.8<br />
27, 1.9.84 .8 .075 .12 .16 .09 .09 .200 1.2 2.6 3.0<br />
28. 2.9.84 1.4 .092 .14 .20 .065 .100 .14 2.0 3.1 3.5<br />
( 228 )
DIVISION OF RURAL ECONOMICS AND BIOMETRICS<br />
REB-I ANALYSIS OF FARM MANAGEMENT AND ECONOMICS OF FORAGE<br />
PRODUCTION AND UTILIZATION SYSTEM.<br />
1.1 Economics of forage production <strong>and</strong> forage based animal production systems-studies<br />
based on data from experiments <strong>and</strong> demonstration trials laid out at C. R, Farm.<br />
(I. P. S, Yadav)<br />
. Economics of the establishment of mixed pastures of Cenchrus species <strong>and</strong> Dolichos lablab.<br />
The field experiments were conduted at <strong>IGFRI</strong>. Jhansi during 1983 on loamy red<br />
. rakar soil which was poor in fertility. The grasses, Cenchrus ciliaris <strong>and</strong> C. setigerlls were<br />
planted at 50 em row spacing <strong>and</strong> planting of one row of Dolichos lablab after everyone, two<br />
or three rows of Cenchrus ciliaris <strong>and</strong> C. setigerus grass was done.<br />
Total dry matter production (grass <strong>and</strong> legume mixtures) was maximised in the field of<br />
C. ciliaris-s-D, lablab planted in 1:1 ratio. During the study period, pure C. ciliaris producced<br />
maximum dry matter.<br />
The dry matter yield of grasses was reduced due to mixed cropping with D. lablab in<br />
the first year. The reduction in yield was due to low plant population of grasses as the seed<br />
rate was reduced proportionately; However, in the second year, the lesume population was<br />
very less <strong>and</strong> grasses covered the whole space. The dry matter yield of legume varied from<br />
11 .99 to 1.84 q/ha during the first year <strong>and</strong> 1.80 to 2.84 q/ha in the second year. The low<br />
yield of legume in second year was due to very less population of legume left in the field.<br />
Thus, it can be concluded that mixed pastures of Cenchrus species <strong>and</strong> D. lablab in 1:1<br />
ratio may be established for increasing the population of high quality forage from pastures;<br />
Further, it is suggested that under arid <strong>and</strong> semi-arid condition. D. lablab should be planted<br />
every year in the established pastures to mainain requisite population of the legume. cropping<br />
of D. lablab had no adverse effect on the forage production of grasses. There was improvement<br />
in the protein content in the mixed forage.<br />
( 229
.12 Marketing of milk products in Babina block of Jhansl district.<br />
(Mallayya)<br />
Marketing of milk <strong>and</strong> milk products in Babina block of Jhansi has been carried out.<br />
The marketing of Ghee, Curd <strong>and</strong> Khowa have been worked out separately, the study<br />
carried on total farmers on an average of the selected villages of Babina block revealed that the<br />
total quantity of milk used for curd was 12.44 litre with the cost of milk of Rs. 39.84.<br />
The revenue received was Rs, 42.47 after sparing 3.35 kg of curd for consumption. The study<br />
of marketing of curd revealed that the farmers are getting low rate profit because of nonremunerative<br />
price of curd.<br />
The study of marketing of Ghee of selected villages of Babina block revealed that total<br />
quantity of milk used forGhee was 6.73 litre <strong>and</strong> total cost of milk was' Rs, 20'39. 1 he<br />
total re venue received of sold Ghee was Rs. 23,40 after sparing 88 g of Ghee for consumption.<br />
The study of marketing of Ghee showed that very little quantity of Ghee was produced <strong>and</strong><br />
marketed in comparison with marketing of curd <strong>and</strong> milk. The stndy of marketing of Khowa<br />
in selected village'> of Babina revealed that the total quantity of milk used fer Khowa was 7.06<br />
litre <strong>and</strong> total cost of milk was Rs. 27.97 after sparing 121 g of Khowa for family consumption.<br />
The study revealed that marketing surplus <strong>and</strong> marketable surplus of khowa in Babina<br />
block were very meagre.<br />
1.3 A study on the economic a,,ct of milk praduction in milkshed areas of Jhansi<br />
district of Bundelkh<strong>and</strong>,<br />
(I. .P. S. Yadav)<br />
The study was conducted in five villages of Baragaon block of Jhansi district. The<br />
study of the socio-economic profile of milk producers revealed that the milkshed area was<br />
dominated by illeterates <strong>and</strong> majority of them depend on agriculture as their principal means<br />
of livelihood. None of house hold had taken up dairying as their main occupation. Majority<br />
of them reared only one/two milch animals <strong>and</strong> they belong to the category of l<strong>and</strong> less<br />
labourers, rrarginal farmers <strong>and</strong> small farmers. The majority of milk producers were aware<br />
of milk production enhancement inputs, their urilization was very poor, which indicated that<br />
milk producers were showing some reluctance towards adopting improved dairying practices.<br />
It may be due to their poor socio-economic background.<br />
( 230 )
The milch animals maintained in the milkshed area were of local type characterised by<br />
low productivity, low lactation length, high dry period <strong>and</strong> later maturity. 'On an average<br />
buffaloes were attaining firstcalving at 46th month <strong>and</strong> cow at 47th month. The total number<br />
of lactations were observed to be six in the case of both cows <strong>and</strong> buffaloes. Theavervge<br />
lactation length was 9 month for cow <strong>and</strong> 10 months for buffaloe, The average dry period<br />
found to be 10 months in the case of cow <strong>and</strong> II months in case ot' buffaloe. Theeve~ag~<br />
yield per day per animal was 1.40 litres in c.ise of cow <strong>and</strong> 2.04 litre in case of buffaloe.<br />
The irrigation facilities in the milkshed areas were inadequate having a significant<br />
bearng on the supply of bovine feed. The bovine feeds are broadly classified nuder three<br />
heads, namely, dry fodder, green fodder <strong>and</strong> concentrates. Only 4 types of dry fodderjnamely,<br />
paddy straw, bajra kadbi, jowar kadbi <strong>and</strong> bhusa were fed to milch animals in the study area.<br />
The major source of green fodder was the local grass <strong>and</strong> weeds. Few farmers were also found<br />
feeding cultivated fodder to their milch animals but.vin general, they showed reluctance to<br />
improve the fodder resources. The quantities of the different types of feed, fed to the milch<br />
animals, was very less conpired to a st<strong>and</strong>ard Ieeuing schedule, AroundS kg of dry fodder,<br />
6 kg of green fodder <strong>and</strong> 0.5 kg of concentrtes were fed per animals per day in case of c0'o/s<br />
in milk <strong>and</strong> 7 kg of dry fodder, 7 kg green fodder <strong>and</strong> 0.75 kg of concentrates per animal per<br />
day in case of buffaloes in milk. The quantities of these three types of feed to dry animals was<br />
almost half of the feed fed to animals in the milkshed area of Jhansi district.<br />
The studies revealed that level of literacy had a very high impact on scientific breeding<br />
<strong>and</strong> management of dairy animals. Inadequate availability of irrigation also had a bearing on<br />
feed supply. Milch animals with a 1.lrge intercalving period, low lactation length <strong>and</strong> low<br />
yie Ids were considered poor.<br />
The average cost of maintenance was Rs. I 65 per day for lactating cow <strong>and</strong> Rs. 0.90<br />
for a dry cow when family labour was included. 'In case of buffaloe, these figures were Rs.<br />
2.14 <strong>and</strong> Rs, 1.11 per day respectively In .het~tal maintenance cost, the major component<br />
was the feed which accounted for 75°1" . of the total maintenance cost for both lactating -cows<br />
. -<br />
<strong>and</strong> buffaloes <strong>and</strong> 60% in case of dry animals. The family labour cost Was onlv around 10%<br />
of the maintenance cost. The returns of dairy enterprise included income from milk, dung <strong>and</strong><br />
sale of calves. The income from milk over the entire life span of a milch animal was Rs,<br />
3590 in case of cow <strong>and</strong> Rs. 6598 in case of buffaloe. The income from the dung during the<br />
entire life span of a milch animal was Rs. 600 in case of cow <strong>and</strong> Rs. 800 in case of buffaloe.<br />
Therefore, the total income from a cow over the entire life span was Rs, 4190, while in case<br />
of buffaloe, it was Rs. 7398,<br />
( 231
1,4 Studies on relative economics of forage crop production on cultivators fields.<br />
(Ram Asray Singh)<br />
Studies on the relative economics of the year round fodder production under demonstration<br />
trials through improved technology as compared to the crops (forage or other) grown<br />
by the farmers included the following forage crop rotations in overlapping systems:<br />
1. Berseem+ mustard-s-hybrid napier+ cowpea<br />
1. Berseem+mustard--Setaria sphacelata+cowpea<br />
Three farmers preferred to grow wheat crop <strong>and</strong> two potatoes. The result was overwhelmingly<br />
in favour of cultivation of forage crops in overlapping systems with recommended<br />
package of practices. However, potato crop on one farmer field gave slightly higher than other<br />
crops Rs. 20593.69 (demonstration or farmers crops) but input-c utput ratio was less than<br />
the forage crops berseem-l-rnustard intercropping either wi.h hybrid napier or Setaria<br />
sphacelata,<br />
For rabi 1983-84 Season the forage crop berseem-l-rnustard under demonstration,<br />
yielded on an average 925.15 q /ha of green fodder with a cost of production of Rs. 6239.56<br />
<strong>and</strong> net profit of Rs. 12266.16 perha at prevailing market price (Rs. 20.00). The average<br />
input-output ratio worked out to be 1:2.98.<br />
In demonstration trials of berseern + mustard green forage yield ranged from 753.51 to<br />
1079.00 q/ha <strong>and</strong> the input-output ratio varied from 1:2.47 to 1:3.51. The net profit ranged<br />
from Rs, 8971.30 to Rs. 1438836/ha.<br />
The maximum green forage yield (1079.00 q/ha) was produced with an input of Rs,<br />
7205.44 <strong>and</strong> the net profit of Rs, 14388.36/ha. The input-output ratio was 1:2.09 <strong>and</strong> the cost<br />
of production per quintal green fodder was Rs. 6.67. In all the demonstration trials cost of<br />
production of per quintal green fodder was Rs, 5.68 <strong>and</strong> the minimum cost of production<br />
was Rs, 5142.28/ha. The input output ratio was 1:3.51,<br />
The seed <strong>and</strong> fertilizer irrigation charge, human <strong>and</strong> bullock or tractor power cost<br />
ranged from Rs. 1182,70 to Rs.2130.30; Rs, 1100.00 to Rs. 2000.00 <strong>and</strong> Rs. 1387.50 to<br />
2091.66/ha respectively.<br />
( 232 )
The maximum cost of production per quintal green fodder was Rs, 8.09. It was due to<br />
lower yield (753.51 q/ha) of green forage <strong>and</strong> more irrigation charge Its. 2000.00 per ha,<br />
Irrigations we re done by the diesel pump.<br />
The return obtained from potatoes by the farmers were Rs, 14627.09/ha against Rs.<br />
10952.51/ha under the demonstration crop of berseem+mustard. The input-output ratios<br />
were 1:2.39 <strong>and</strong> ~:2.99 under corresponding systems of cropping. The average yield of potato<br />
on two farmers fields was 250.03 q/ln with tha cost of production of Rs, 11176.36. The<br />
maximum yield of 303.57 q/ha was obtained with the investment of Rs. 9763.31/ha.. This<br />
resulted in a net profit of Rs, 20593.69 <strong>and</strong> input-output ratio of 1:3.10. On the other farmers<br />
field potato yield of 212.50 q/ha was obtained from Rs. 12250.00 as cost of production. This<br />
gave a net profit Rs 8660.50/na. The input-output ratio for this crop was only 1:1.68.<br />
In the case of wheat crop grown by the farmers the grain yield of wheat, ranged from<br />
21.87 to 24.00 q/ha with corresponding input-output ratio of 1:1.19 to 1;1.24. The maximum<br />
net profit was 913.98 per ha <strong>and</strong> the minimurilnet profit was Rs. 695,86/ha. The average cost<br />
of production was Rs, 3723.81/ha <strong>and</strong> the cost per quintal of wheat grain worked out to be<br />
Rs. 125.60. The cost of production of wheat bhusa was Rs. 24.57 per quintal.<br />
1.5 Economics of dairy units in rural <strong>and</strong> urban areas of Gwalior district (M.P.)<br />
(A. K. Sharma)<br />
Most of the sampled families (57.5%) belonged to backward caste co'mml.tllity <strong>and</strong> the<br />
remaining 42.5% were socially advanced caste families. 12.5% families con.sisted oTl-3<br />
members, while 62.5~{ families consisted 4-12 members <strong>and</strong> remaining 25% were big.families<br />
with member ranging from 13 to 21. The study indicated low educational status as 40 dairy<br />
members were illiterate, 22.5% had studied upto primary, 30% either middle pass or secondary,<br />
whereas only 7,5% had studied beyond secondary level.<br />
Family composition of sampled households revealed that percentage of adult <strong>and</strong><br />
children was 44.57% <strong>and</strong> 55.43% in urban area, 52.70% <strong>and</strong> 47.3G% in semi-urban area: <strong>and</strong><br />
51.95% in rural areas, respectively. Percentage of illiteracy is 54.08, 55.44 <strong>and</strong> 51.71 in urban,<br />
semi-urban <strong>and</strong> rural areas respectively. There was no marked difference between different<br />
locations in case of illiteracy as dairy households in urban area, too, have migrated fromrural<br />
areas. Percentage of school going children was 78.91, 92.15 <strong>and</strong> 77.55% in urban semi-urban<br />
<strong>and</strong> rural areas respectively.<br />
( 233 )
Occupationaldistribution of these families indicated that 67' 5% families were having<br />
agriculture as main occupation, 25% were having dairy as main occupation, whereas 2.5% <strong>and</strong><br />
5.0% families were having business <strong>and</strong> service as main occupation respectively. As regards<br />
subsidiary occupation, 75% <strong>and</strong> 2.5% families are having subsidiary occupation namely dairy<br />
-<strong>and</strong> agriculture respectively, whereas 22 5% families were dependent either on agriculture or<br />
dairy with. no subsidiary occupatien,<br />
Also all the rural dairy households (75% were having cultivated l<strong>and</strong><strong>and</strong> among them,<br />
8% were subsistence type dairy units <strong>and</strong> 92~;'; were commercial units most of d.iiry<br />
(90eyo) were selling milk, only 47% units in urban <strong>and</strong> semi-urban areas sell milk directly to<br />
consumers, 33% to milkman, 15% to Gwalior Dughad Sangh <strong>and</strong> remaining 5% were wurking<br />
on purely subsistence lines. Most of dairy units were buffaloe oriented units,<br />
Among all the units in semi-urban <strong>and</strong> rural area, 75% dairy 'owners were l<strong>and</strong>less<br />
.. '<br />
32.5% were small <strong>and</strong> merginal farmers, whereas 12.5% were medium farmers <strong>and</strong> remaining<br />
22.5% were having l<strong>and</strong> beyond '10 acres. . The position as regards holdings become adverse<br />
if only irrigated area was taken into account. 12.5~~ milk producer households having no<br />
irrigated l<strong>and</strong>, 37.5% were having irrigated l<strong>and</strong> upto 5 acres, whereas. remaining 25% were<br />
having irrigated area more than 5 acres of l<strong>and</strong>. L<strong>and</strong> utilization statistics indicated that<br />
percentage of area under Ioodgrain crops, cash crop <strong>and</strong> fodder crops was 49.15%, 34.99~;';<br />
<strong>and</strong> 15.86% respectively while in rural area this percentages 33.97%,' 74.84% <strong>and</strong> 21.40%,<br />
respectively with 4.43/0 <strong>and</strong> 25,36% of area under farm building <strong>and</strong> pasture l<strong>and</strong> respectively.<br />
The cropping pattern indicated that Mustard, Berseern, Gram, Jowar, Bajra <strong>and</strong> Chari predominated<br />
in the area. Potato WJ.S v;:ry popular as commercial crops in semi-urban area of<br />
Gwalior. .<br />
11.6 Level <strong>and</strong> pattern of investment on small far~ers in Ajmer district.<br />
(A. K. Sharma <strong>and</strong> D. P. H<strong>and</strong>a)<br />
The study revealed that with the increase in size of holding, total expenditure per farm<br />
increased (from Rs. 5827 to Rs, 12785) whereas per acre capital expenditure diminished<br />
from Rs. 7756 to-Rs, 2174/-). Analysis of different components of fixed capital indicated<br />
that l<strong>and</strong> <strong>and</strong> its improvement was the major component of investment which accounted<br />
57.4% followed by livestock (32.43~~) <strong>and</strong> household property (6.68%), respectively. It has<br />
been found that investment was positively <strong>and</strong> ~ignificantly correlated with irrigation (R=~0.64)<br />
with family size (0.53) with gross annual income (0.36). It has been shown by multiple<br />
234 )
correlation (R=0.80) that irrigation, l<strong>and</strong> holding, family size <strong>and</strong> annual<br />
income was highly<br />
correlated with investment. Multiple regression equation . was Y=34.46+1268.21X +-111865<br />
X 2+225.65<br />
X 3+1.19X4<br />
indicating 64.99% of total variation. Impact of irrigation was higher<br />
in investment as compared to other factors influencing investmeat. .Family size had the least<br />
impact on investment as there was very significant change in variation (Viz. 64.99.%) onexclusion<br />
of family size factor. .<br />
REB-2: BI0METRICAL STUDIES IN FORAGE PRODUCTION AND UJILIZAnON<br />
2.1 Uniformity trial on Stylo.<br />
(D. P. H<strong>and</strong>a)<br />
In the uniformity trial, the coefficient of variation for the plot size 1, 2, 3, 4, 6, 8; 9,<br />
12, 16, 18, 24, 27, 36, 48, 54, 74, 108, 144, 162 <strong>and</strong> 216 m 2 were calculated without blocking<br />
<strong>and</strong> also with blocking size of 2, 3, 4, 6, 9, 12, 16, 18,24, 27, The calculated C. V. value<br />
decreased with the increase in plot size in either direction, The C. V, value decreased from<br />
29.90 to 9.02 as plot size increased from I m 2 to 216 m 2• Similar jrend was ,also obtained<br />
with blocking, The average C. v. e;.;) obtained for different plot size with <strong>and</strong> without<br />
blocking showed that there was sharp decline in C. V. value as plot size increased Which<br />
remained upo 9-12 m 2 after that decline was gradual specially when blocking was adc pi~'d,:<br />
2,2 Rainfall pattern <strong>and</strong> their role in forage production in Bundelkh<strong>and</strong>, region.<br />
(D. P. H<strong>and</strong>a)<br />
I, Expected number of dry <strong>and</strong> wet days (Hamirpur)<br />
At Harnirpur, average number of wet <strong>and</strong> dry days were 35.55 <strong>and</strong> 86.45, respectively<br />
with maximum of 44 days in 1971 <strong>and</strong> minimum of 29 in 1964 <strong>and</strong> 1972. The X2 test indicated<br />
significance of 3 years (58 -60) in 15 years indicating weather is not influenced by immediately<br />
preceding -day s weather but also on the weather of immediately two proceeding days.<br />
The 9 years indicated non-significance which implied that we ither of the<br />
day was independent of the wheather of the day proceeding the immediately<br />
preceeding days The variability of wet days remained in the range of 15 to 25.7 of the<br />
mean with the year While from year to year variability of wet days was 15.73%. The probability<br />
11 2 of a unit being wet at the state of equilibrium, was less.than the probability III a<br />
unit being dry at the state of equilibrium' The.same was highest in 1964 for 1I 1=0.7623<br />
<strong>and</strong><br />
1971 11 2 = 0.3607.<br />
235 )
2. Expected length of dry runs, wet runs <strong>and</strong> dry wet cycle of one day size (Hamirpur)<br />
The expected length of day rum, wet runs.l<strong>and</strong> dry wet cycle were found out for the<br />
period of 1955 to 1977. The data for the year 1961, 65, 66, 69, 70, 73, 74, 75 were not<br />
available The years 1958-60 years indicated the significance of XLtest which implied that<br />
occurence of wet or dry days was not influenced by the immediately proceeding days weather<br />
but also immediately two preceeding days. The average length of dry run was 5.47 &<br />
wet run was 2.23. The average dry wet cycle was 7.70 units. It was found that expected<br />
length of dry run was always greater than wet run. The variability of dry run from year to<br />
year was 18.70, while of wet run was 18.26 indicating the change more or less same in dryas<br />
well as wet runs.<br />
3. Expected number of wet <strong>and</strong> dry days at Jalaun.<br />
The expected number of wet <strong>and</strong> dry days was 3456 <strong>and</strong> 87.44 respectively. The<br />
maximum number of wet days was 46 in 1967 <strong>and</strong> minimum 21 in 1968. The coefficient of<br />
variability of wet days within the year ranged from 17.20% to 27.35% while be tween the year<br />
it was 23.47%" The X2 test, out of 12 years was found to be significantly different during<br />
1958 <strong>and</strong> 1959. From 1960 to 1977 data was non-significant which indicated weather of<br />
the day was independent of weather of immediately proceeding day. The probability III of<br />
unit dry at the state of equilibrium was greater than II 2 of unit being wet was the state of<br />
equilibrium during all the years.<br />
4. Expected length of dry run. wet run <strong>and</strong> dry wet cycle of one day (Jalaun).<br />
The expected length of dry run wM' found to be 5.20 <strong>and</strong> wet run to be 2.07 compared<br />
to the dry wet cycle of 727 units indicating that after every 5.20 units of dryness there was<br />
wetness. The variability as indicated by st<strong>and</strong>ard deviation of 1.32 in dry run <strong>and</strong> 0.41 in wet<br />
run was not much more. 1958-59 indicated significance of X 2 test mean occurrence of wet<br />
dry day is not influenced.<br />
5. Weather analysis ana climatological classification of B<strong>and</strong>a district.<br />
(D. P. H<strong>and</strong>a <strong>and</strong> R. M. Sood)<br />
From the climate' of this place it was seen that th e July <strong>and</strong> August was most wet<br />
period where water surplus measured as 42.85 <strong>and</strong> 49.32 mm, respectively <strong>and</strong> rest the 10<br />
months were in deficit to the tune of about 431 mm <strong>and</strong> 378 mm, respectively, The probability<br />
analysis indicated that the maximum weekly rainfall which could be expected with 50%<br />
probability in the month of June, July, August <strong>and</strong> September was 41, 116, 135 <strong>and</strong> 63 mm<br />
respectively <strong>and</strong> also maximum weekly rainfall which could be expeeted with 50% probabilities<br />
in their st<strong>and</strong>ard week of June 32 mm, July 71 mm, 107 mm in August <strong>and</strong> 34 mm in<br />
September.<br />
( 236 )
DIVISION OF EXTENSION & TRAINNING<br />
A. Ex-I: ADOPTION AND DIFFUSION OF FORAGE INNOVATIONS AND FEED<br />
BACK INFORMATION.<br />
1.1 Studle.. on the factors (Socio-economic, psychological <strong>and</strong> communication) associated<br />
with adoption behaviour of Bundelkh<strong>and</strong> farmers.<br />
(M. R. Lokh<strong>and</strong>e & Dalaur Sinnh)<br />
Preparation of some of the measuring tools such as irrigation potentiali ty, cropping<br />
intens.ty, market orientation, social participation, age an d education of farmer, knowledge<br />
about the forage crops, risk orientation, etc., have been initiated. Additional information<br />
about the selection of villages have been gathered from the local administration. Simultaneously<br />
construction of the questionnaire schedule for the present study was undertaken.<br />
1.2 A study of information source-utilisation patterns of the big <strong>and</strong> smaJI farmers in<br />
rela tion to forage crops.<br />
(M. R. Lokh<strong>and</strong>e & Maharaj Singh)<br />
A comprehensive list of the sources of information utilised by the villagers in relation<br />
to forage crops was prepared. Preliminary information for selection of the villages was<br />
g athered from the Badagaon <strong>and</strong> Chirgaon block offices. The big <strong>and</strong> small farmers from<br />
these blocks will constitute the sample of respondents. Preparation of the questionnaire<br />
schedule has also been undertaken.<br />
1.3 Attitude of small <strong>and</strong> big farmers on adoptien of fodder crops in Jbansi. (U. P.)<br />
(Maharaj Singh)<br />
The selection of villages <strong>and</strong> respondents have been undertaken.<br />
( 237 )
1.4 Prediction of growing needs of Bundelkh<strong>and</strong> farmers with special reference to for- ....<br />
age production at their own farms.<br />
(Dalaur Singh)<br />
., A list of some need areas was prepared <strong>and</strong> than same was circulated to staff members<br />
for selecting the most. suitable areas to be included in the study. The staff members were requested<br />
to give their opinion on five point suitability scale. The response of the judges has been<br />
collected back. Schedule for data collection was under preparation.<br />
( 238 )
SUB-STATION, MANASBAL (J&K)<br />
SST, 1 : FERTILIZER RESPONSE OF RANGE GRASSES AND CULTIVATED<br />
FODDERS UNDER TEMPERATE AND SUB-ALPINE CONDITIONS.<br />
1.7 Fertlllzcr management trial on Onobrachys <strong>and</strong> Lotus corniculatus.<br />
(B. K. Misri)<br />
The exotic collections of two species viz., Onobrachys <strong>and</strong> Lotus corniculatus were<br />
received <strong>and</strong> evaluated at the sub-stauon. The sewings were made in October <strong>1984</strong>, however,<br />
the germination was very poor. Lotus corniculatus exhibited a germination rate of 43% while<br />
Onobrachys exhibited a germinatiun rata of only 27%. The gaps in the lines were re-sowed<br />
in spring. The early establishment of the plants was very slow <strong>and</strong> therefore it was not worthwhile<br />
to evaluate the material. Detailed evaluation will be done next year,<br />
SST.-3 . EXPLORATION, COLLECTION, ECOLOGY AND EVALUATION OF INDI<br />
GENOUS AND EXOTIC MONTANE FORAGE AND TOXIC PLANTS IN<br />
GRASSLANDS.<br />
31 Introduction of exotic forage flora for preliminary evaluation.<br />
(E. K. Mini)<br />
Following collections were received by the sub-stotion during this year, which were<br />
,sown in nursary beds to find out their suitability for forage production.<br />
-Lotus corniculatus : 7 collections IL 1971-1977.<br />
Other Lotus : EC 154027-154035, 154039 & 159370-159376.<br />
Trigonella<br />
Trifolium<br />
EC 154040<br />
EC 158958<br />
( 239
Trifolium repens : IL 1963<br />
Melilotus 11 collections IL 2025-2035<br />
Eroilia sativa : 8 collections IL 2036-2043.<br />
3.6 Introduction of indigenous forage flora for preliminary evaluation.<br />
(B. K. Misri)<br />
Following indigenous collections of various grasses <strong>and</strong> legumes were received by the<br />
sub-station from NBPGR, New Delhi for evaluation.<br />
From Lahul Spiti :<br />
sweet clover : 2 collections NC 60812 & 13,<br />
V.'ild legumes: 8 cel lections 1'\C 60814· 21,<br />
Wild grasses: 5 collections NC 60822-26.<br />
Wild grasses : 1 collee.ions NC 60889<br />
FrOl,1 Ladakh :<br />
White colver: 1 collection NC 64124<br />
,<br />
All these collections were sow n in plant introduction nursery in plots: Out of all the<br />
collections one NC 64124 <strong>and</strong> NC 60815 <strong>and</strong> 60818 germinated: The germinated one survived<br />
till April <strong>1984</strong> but in Mayall these started withering <strong>and</strong> vanished. The root stocks are<br />
being maintained to observe regeneration, if any. It is persumed that these collections from<br />
the colder parts Lahul Spiti <strong>and</strong> Ladakh could not withst<strong>and</strong> the rising temperatures.<br />
Plant exploration <strong>and</strong> collection'<br />
The plant exploration <strong>and</strong> collection trip was made to collect the germplasm of fodder<br />
crops from various places in Ladkh region. Gerrnplasm of crops like wheat, bariey, Setaria<br />
<strong>and</strong> Lathyrus were also collected to evaluate these at the lower elevations in Kashmir valley.<br />
The present collection activities were confined to the Indus, Dras <strong>and</strong> Zanskar valleys<br />
only. Most of the agricultural activity in the region is confined to these areas. The vegetation<br />
cover is only 5% <strong>and</strong> the agriculture is totally irrigated. All the agricultural acti vity is<br />
confined along Indus <strong>and</strong> Suru Rivers.<br />
( 240 )
Collections were made from fields, threshing yards, farmers house, market <strong>and</strong> wild<br />
vegetation, .<br />
Following collection were made during this collection trip:<br />
Species No. of collections Species No. of collections<br />
Calamagrostis 4 Iris 3<br />
Trifolium 8 Fagopyrum 8<br />
Agropyron 12 Rumex 1<br />
Medicago 64 Peas 23<br />
Dactylis 3 Triticum IS<br />
Meli/otus 12 Bariey 35<br />
Stipa 4 Bromus 2<br />
Sorghum 9 Oats 1<br />
Agrostis 2 Elymus 3<br />
Pennisetum 3 Prangos 10<br />
Setaria 23<br />
Out of all these collections, the winter species, viz., Calamagrostis, Trifolium, Agropyron,<br />
Medicago t Dactylis, Me!ilotus, Stipa, Agrostis, Pannisatum, Iris, Rumex, Peas, Triticum,<br />
Barley, Bromus, Oats, Elymus, Prangos have been sown in the nursery. The seeds of<br />
wheat, barley <strong>and</strong> peas have germinated.<br />
3.7 Evaluation of different cultivars of oats in temperate regions.<br />
(B. K. Misri with R. N. Choubey <strong>and</strong> S. K. Gupta)<br />
Five new strains of oats viz.,JHO SOl,JHO-803, JHO 810, JH0815 <strong>and</strong> JHO 819 alongwith<br />
kent as check were evaluated at the Sub station. The strain JHO 810 exhibited highest forage<br />
production potential in comparison to all other strains. It produced 49.4% <strong>and</strong> 48.55% more<br />
green <strong>and</strong> dry matter respectively at 50% flowering stage than the check variety kent. Data<br />
on various herbage attributes are presented in table 56.<br />
( 241
Table 56', Performance of some oats strains for different forage<br />
attributes.<br />
-<br />
S1. Height Tiller No/ Leaf/Stem G.F.Y. DMY<br />
No. Strain tcm) m. row ratio (q{ha)' (qjha)<br />
1. JHO-80l 90.93 120 0.491 118.9 28.98<br />
2, JHO-802 78.50 102 0.701 91.3 25.40<br />
3. JHO-8l0 87.37 145 0.421 287.1 69.91<br />
4. JHO-8lS 83.99 99 0.S49 189.3 49.17<br />
5, JHO-819 98.93 107 0.519 136.2 27.72<br />
6. Kent 102.23 108 0.615 192.3 47.60<br />
-_._~-- ........<br />
-<br />
3,8 Evaluation of Chicory (Chichorium intybus) as a multicut fodder crop.<br />
(B. K. Misri)<br />
In order to determine the best time for the 'lowing of this crop two sewings were made;<br />
one in autumn <strong>and</strong> another in spring. The sf'ring sowing showed very poor germination<br />
(5.3%), while incase of autumn sowing the germination was 89%. This indicated that the seeds<br />
can not withst<strong>and</strong> sub zero temperature.<br />
S.ST.7 INTENSIFICATION OF FODDER CULTIVATION DURING WINTER IN<br />
PADDY FALLOW AND OTHER AVAILABLE SITES IN TEMPERATE<br />
REGIONS.<br />
7.4 Cultivation of turnips as a multieut gap erop during winter.<br />
(B. K. Misri)<br />
This experiment. started in 1982, was repeated this year <strong>and</strong> the observation recorded .<br />
C 242 ):
confirmed the results' obtained during last two years. The herbage figures
The grass component were oats (Kent) <strong>and</strong><br />
was 100 per cent.<br />
Triticale. The germination in all the combinations<br />
7.6 Intercropplng of Kale with various perennial range legumes.<br />
(B. K. Misri)<br />
This experiment was initiated to utilize the interspaces between the rows of perennial<br />
legumes during winter. Since all the perennial legumes go dormont during winter the whole<br />
l<strong>and</strong> under these remains unproductive. The transplantations were made with the legumes viz,<br />
white clover cvs. Ladino <strong>and</strong> Lousiana, red clover cvs. Montgomari, Cowgrass <strong>and</strong> Tet.ri. One<br />
harvest was obtained during the month of February. The average yield was 158 q/ha. The<br />
Kale plants were still surviving <strong>and</strong> the legumes have also started regeneration. It was estimated<br />
to get another harvest from Kale in the month of April-May.<br />
( 244 ,
PUBLICATIONS<br />
I -<br />
Papers published.<br />
Azrni, M. I. (I 984). Effect of Pratylenchus zeae on seedling growth of su-bahool iLeucaena<br />
leucocephalay ard its control with phonate. Nernatologica, 30: 105-107.<br />
Azmi, M. I. Singh, A <strong>and</strong> Patil, B.D (<strong>1984</strong>) Csutrol of Tylenchorhyncehus vulgaris 00<br />
caribean stylo (Stylosanthes hamata). <strong>Indian</strong> J. Nematol 14:300-201.<br />
Azmi, M. I.<br />
<strong>and</strong> Singh, A (<strong>1984</strong>). Pathogenicity of Tylenchorhynchus vulgaris on Aojan grass.<br />
Cenchrus ciliaris cv. <strong>IGFRI</strong>-S-3108. <strong>Indian</strong> J. Nematol. 14: 184-185.<br />
Bhag Mal, Patil, B. D. <strong>and</strong> Mishra, D. S. (<strong>1984</strong>). Performance of some newly developed<br />
strains of sorghum. Sorghum Newsl. 27<br />
Bhag Mal, Mishra, U. S. <strong>and</strong> Patil, B. D. (<strong>1984</strong>). Heterosis for fodder yield <strong>and</strong> its<br />
components in sorghum. Sorghum Newsl. 27:9-11.<br />
Choubey, R,N., Premch<strong>and</strong>ran, M. N. <strong>and</strong> Gupta, S. K. (<strong>1984</strong>) Effect of Avena sativa<br />
genotype JRQ 801 on chromosomal association in intel"l'pecific hybrid with Avena<br />
magna <strong>Indian</strong> J. Cenet (accepted).<br />
Faruqui, S. A" P<strong>and</strong>ey, K. C. <strong>and</strong> Singh, Q. P. (984) Relation of crop density <strong>and</strong> fertilizer<br />
rates on shoottly incidences in fodder sorghum. <strong>Indian</strong> J. Plant Sci. 2 (1)<br />
:35-38.<br />
Gill, A. S. <strong>and</strong> Patil, B. D. (<strong>1984</strong>) Crop association studies in Leucaena under rainfed<br />
conditions. Leu, Res. <strong>Report</strong> 5:24-25.<br />
Gill, A. S. <strong>and</strong> Patil, B. D. (<strong>1984</strong>) Leucaena leaves as a source of manure. Leu. Res. <strong>Report</strong><br />
5:26.<br />
Gill, A. S. <strong>and</strong> Patil, B. D. (I 984) Subabool for forage production under intercropping, a<br />
new approach. Ind. Fmg. (Published)<br />
( 245
Gupta, S.K. <strong>and</strong> Choubey, R. N. (<strong>1984</strong>) Comparison among two intrapopulation improvement<br />
procedures for forage yield <strong>and</strong> yield attributes in pearl millst, Genet.<br />
Agr.39:415-424<br />
Gupta, S.K., Premch<strong>and</strong>ran, M. N. <strong>and</strong> Choubey, R. N. (<strong>1984</strong>) Inheritance of a new source<br />
of dwarfism in P~aI I millet. Z. Pfianzenzuchtg (Accepted).<br />
Gupta, S.K. <strong>and</strong> Choubey, R. N. (<strong>1984</strong>) A selection i n Jex for high for.ige yi~ldin:s pint type<br />
in pearl millet. Pl.m t <strong>and</strong> Nature (In press}<br />
Gupta, V K. <strong>and</strong> Patil, B. D. (<strong>1984</strong>) A simple technique' of h<strong>and</strong> emasculation in Leucaena<br />
leucoccphala. Leucaena <strong>Research</strong> <strong>Report</strong>. Vol. 5:29-30.<br />
Gupta, V.K. <strong>and</strong> Paril, B, D. (<strong>1984</strong>) Performance of the Leucaena species <strong>and</strong> hybrids.<br />
Leucaena <strong>Research</strong> <strong>Report</strong>, Vol. 5:27-28.<br />
Hasan, N (<strong>1984</strong>) Biotoxicity of Parthemum hysterophorus L. extracts against M. incognita<br />
<strong>and</strong> H. dilngst era. Nernatol. Mcdit 12:239-242:<br />
Hasan, N (<strong>1984</strong>) Effect of soil amendments on fodder production, photosynthetic pigments<br />
<strong>and</strong> i.ematodes associated with berseem. Agric. Sci. Dig. 4:12-14.<br />
Hasan, N (<strong>1984</strong>) Toxicity of Su-Babool (L. leucocephala extract to M. incognita <strong>and</strong><br />
H. dibyst era. Ind. J. Nernatol, 14:179-181.<br />
Hasan, N (<strong>1984</strong>) Increased sx-d p-oducion of cowpea with low dose of Phenamiphos<br />
Pesticide 18:49.<br />
Hasan, N (<strong>1984</strong>) Increased fodder production by chemical control of Pratylenchus zea<br />
all maize. pesticides 18:48.<br />
Hazra, C.R. <strong>and</strong> Tripathi, S. B. (I 984) Forage yield, phosphorus uptake <strong>and</strong> soil properties<br />
as influenced by phosphate application <strong>and</strong> photosynthtically active radiation<br />
under tree <strong>and</strong> open canopy. J. <strong>Indian</strong> Soc. Soil Sci.<br />
Jain, R <strong>and</strong> Gupta, R. K. (l984)Structure of phagopolin from Alysicarptus Iengitolius. <strong>Indian</strong><br />
J. Chern. 23 : 999-1000.<br />
Kanodia, K C. (i 984) <strong>Research</strong> on tropical legumes in India- A review. Plant <strong>and</strong> Nature 2<br />
(1):23-35.<br />
( 246,)
Menhi Lal, Shukla, N. P. <strong>and</strong> Saxena, D. C. (<strong>1984</strong>) Studies all water use <strong>and</strong> irrigation<br />
scheduling in mixed cropping of forage involving different canopy surfaces.<br />
<strong>Indian</strong> J. Agron. 29 (1):68-71.<br />
Menhi Lal, Shukla, N. P. <strong>and</strong> Saxena, D. C. (<strong>1984</strong>) Influence of different stubble heights<br />
<strong>and</strong> soil/water management techniques on regeneration <strong>and</strong> forage yields of<br />
oats in two cut system. <strong>Indian</strong> J. Agron 29 (2) : 156-161.<br />
Minhas, P.S. <strong>and</strong> Gill, A. S. (<strong>1984</strong>) Forage production in sorghu;n- oats rotation as affected<br />
by tillage <strong>and</strong> method of fertilizer application under rainfed conditions. Iaternational<br />
J, Tropical Aglic. II (3) : 245-2'::0.<br />
Mishra, S.N., Patil, B. D, <strong>and</strong> Sinha, N. C. (<strong>1984</strong>) Effect of molybdenum <strong>and</strong> cobalt on<br />
morphological determinants <strong>and</strong> seed production potential of cowpea with <strong>and</strong><br />
. without nitrogen. Plant <strong>and</strong> Nature 2 (1) : 95-98.<br />
P<strong>and</strong>ey, K.C., Faruqui, S. A., Arnar Singh <strong>and</strong> Pati!, B. D. (<strong>1984</strong>) Effect of various modes<br />
<strong>and</strong> time of pollination on pod seeting in lucerne. Ind. J. Plant Sci (2) : 65-68.<br />
P<strong>and</strong>ey, K.C., Faruqui, S, A., Amar Singh <strong>and</strong> Patil, B. D. (<strong>1984</strong>1. Screening of Medicago<br />
species for resistance to alfalfa weevil. <strong>Indian</strong> J. Agric, Sci. 54 (3) : 196-199.<br />
P<strong>and</strong>ey, K.C.. Arnar Singh <strong>and</strong> Faruqui, S: A. (984) Sources<br />
aphid in medico. <strong>Indian</strong> J. Genet 44: (In press)<br />
of resistance of spotted alfalfa<br />
Paudey, K. C. <strong>and</strong> Amar Singh (<strong>1984</strong>) Laboratory evaluation of medics for resistance to<br />
lucerne weevil. <strong>Indian</strong> J. Genet. 44 : lin press).<br />
Parihar, S.S. <strong>and</strong> Kanodia, K. C, (<strong>1984</strong>) Seed germination studies with Cenchrus setigerus<br />
Vahl II Inhibition of. seed germination by spikelet Leachate a rd identifications<br />
of inhibitions plants <strong>and</strong> Nature 2 : 71-75.<br />
Parihar, S.S., PatiI, B. D. <strong>and</strong> Kanodia, K. C, (<strong>1984</strong>) Influence of seed weight <strong>and</strong> cornparision<br />
of seedling growth in Cenchrusciliaris. Van vigyan 22: 20-22.<br />
Parihar, S.S. <strong>and</strong> Pati!, B. D, (<strong>1984</strong>) Seed germination studies with Cenchrus ciliaris Ii-Isolation<br />
<strong>and</strong> characterisation of germination inhibitions from the spikelets, Curr.<br />
Sci. 53 : 387-388.<br />
247 )
Parihar, S. S., Kanodia, K. C. <strong>and</strong> Singh, K. A; (<strong>1984</strong>) Effect of pH on germination of range<br />
grasses Forage Res. 10 : 43-44,<br />
Parihar, S. S., Kanodia, K. C. <strong>and</strong> Rai, P (<strong>1984</strong>) Effect of age (Storage) <strong>and</strong> removed of<br />
glumes on germination of Cenchrus ciliatis Linn. <strong>Indian</strong>. J. Ecol. 11 (2) :<br />
313-316.<br />
Pathak, P.S., Gupta, S. K. <strong>and</strong> Deb Roy, R. (<strong>1984</strong>) Autecology of Leucaena leucocephcla Ill,<br />
Meteroglyph analysis of seedling characteristics. J. Tree Sci. (I & 2) (15-19).<br />
Pathak, P. S., Gupta. S. K, <strong>and</strong> Deb Roy, R (<strong>1984</strong>) Productivity of Leuraena leucocephala<br />
on moist wastel<strong>and</strong>. J. Tree Sci. (In press).<br />
Pathak P.S. <strong>and</strong> Gupta, S. K. (<strong>1984</strong>) Seed germination <strong>and</strong> seedling growth of Hardwickia<br />
binat a Roxb. NFTRR, 2 : 7-8.<br />
Patil, s.n., Premch<strong>and</strong>ran, M. N., Gupta, S. K. ond Choubey, R. N. (<strong>1984</strong>) Inhibition of<br />
hrachytic dwarfing gene in Pennisetum lyphoides (Burn) S & Hx P. pl.4rpureum<br />
schum crosses <strong>Indian</strong> J. Genet. 44 (Accepted).<br />
patil, B, D.<br />
Patil, B. D.<br />
<strong>and</strong> Gill, A. S, (<strong>1984</strong>) Shevrj-a multipurpose shrub, Ind. Fmg. (Published),<br />
<strong>and</strong> Pathak, P.S. (<strong>1984</strong>) Leucaena leucocephala (Lam) de wit; for India-Prospects<br />
<strong>and</strong> Problems. My Forest. 20 (I) : 13-18.<br />
Prasad, J. (<strong>1984</strong>) Note on some observations of bovine epiphora. <strong>Indian</strong> Vet. Med. J,<br />
8:188-189.<br />
Prasad, J, (<strong>1984</strong>) Studies on some aspects of scabies III goats <strong>and</strong> calves. <strong>Indian</strong> Vet. J.<br />
61 :339-343.<br />
Premce<strong>and</strong>ran, M. N., Choubey, R. N. <strong>and</strong> Gupta, S. K. (<strong>1984</strong>) A spontaneous mutant with<br />
three single pistls in Avena sativa L. Curro Sci. 44 (1) : 51.<br />
Rai, P (<strong>1984</strong>) Pattern of vagetative growth of Dichanthium annulatum plant types.<br />
<strong>Indian</strong> J. Eco. II (I) : 57-61.<br />
Rai, P. <strong>and</strong> Kanodia, K. C. (<strong>1984</strong>) Effect of nitrogen <strong>and</strong> phosphorus on seed production of<br />
Macroptillum at ropurpureum (DC) Urb. cv, siratro, Ag. Res. Comrnun. Life Sci.<br />
adv, suppl, 3 (I) 13-15.<br />
( 248 )
Rekib, A (<strong>1984</strong>) Livestock-<strong>Fodder</strong> resource analysis for 2000 AD. Magazine, B. C, K. V,<br />
V., Calcutta.<br />
Roy, M. M., Pathak, P. S., Moitra, A <strong>and</strong> Deb Roy, R (<strong>1984</strong>) Seed polymorphism <strong>and</strong><br />
germination in Vigna unbillata. <strong>Indian</strong> J. Range Mgmt. Vol. 4 (I) (In press).<br />
Roy, M.M" Pathak, P.S. <strong>and</strong>. Deb Roy, R (<strong>1984</strong>) Dichrostachys cinerea with special reference<br />
to its potential on wastel<strong>and</strong>s. Myforest 20 (4) : 2l3-224.<br />
Roy, M.M., Karihaloo, J. L. <strong>and</strong> Deb Roy, R ([984) Seedling growth <strong>and</strong> performance in<br />
some fodder Acacias at Jhansi, Journal of Tree Sciences 4 (2) (In press),<br />
Roy, M. M., Pathak, P. S. <strong>and</strong>; D~b Roy, R (<strong>1984</strong>) Seed Scarification requirement of<br />
Dichrostachys cinerea. J, Tree Sci. 3 (l & 2) : 243-45.<br />
Shankarnarayan, K. A. <strong>and</strong> Rai, P (<strong>1984</strong>) Effect ot'rate <strong>and</strong> method of nitrogen <strong>and</strong> phosphorus<br />
application on seed production in Lseilema laxum Hack. Ann. Arid Zone<br />
28 (4) : 323-320.<br />
Sharma, A. K. & H<strong>and</strong>a, D, P' (<strong>1984</strong>) Socio economic statistics of marginal farmers. Rural<br />
India, J une.<br />
Sharma, B. R. <strong>and</strong> Hazra, C. R. (<strong>1984</strong>) Response of fodder oats 'to nitrogenous fertilizer as<br />
influenced by tillage techniques. Bull, Ind. Soc, Soil Sci. 13<br />
Sharma, N <strong>and</strong> Gupta, R. K. (<strong>1984</strong>) Constituents of Atylcsia scarabaeiods. Fitoferopia<br />
(In press)<br />
Shivankar, V. J., Shri Ram <strong>and</strong> Patil, B. D. (L984) Evaluation of some insecticides against<br />
insect pests of fodder mustard (China cabbage). J. Ent. Res. 9 (I) : 36-42.<br />
Shivankar, V, J. <strong>and</strong> Shri Ram (l984) Estimation of insecticidal residues on lucerne J. Ent,<br />
Res. (Accepted).<br />
I<br />
Shivankar, V. J. <strong>and</strong> Shri Ram (<strong>1984</strong>) Residual fate of phosphamidon <strong>and</strong> monocrotophos on<br />
fodder mustard (China cabbage) J. Ent. Res. (Accepted)<br />
Singh, A. P. <strong>and</strong> Rekib, A (<strong>1984</strong>) Effect of wilting <strong>and</strong> mixing berseem <strong>and</strong> oat fodders on<br />
the fermentation pattern of silage (a laboratory study). <strong>Indian</strong> J. Animal Science<br />
(In press).<br />
249 )
Singh Jai, Satyanarayan, V. V. <strong>and</strong> Patil, B. D. (<strong>1984</strong>). Effect of temperature on drying rate<br />
of grass in this layer J. Ag. Engg Vol. XX (1) ,'.<br />
Singh, K. A. <strong>and</strong> Rai, P (<strong>1984</strong>) Response of forage Panicum species to nitrogen fertilization<br />
on semi arid l<strong>and</strong>s. <strong>Indian</strong> J. Agric. Sci 54 (5) : 382-386.<br />
Singh, K. A., Pati!, B. D. <strong>and</strong> Rai, P (<strong>1984</strong>). Integration of forage food production through<br />
intercropping in semi-arid region <strong>Indian</strong> J. Agron. 29 (4) : 510-515.<br />
Singh, K. A., Menhi Lal, Dwivedi, G. K., <strong>and</strong> Kanodia, K. C. (<strong>1984</strong>) Effect of N-Nutrition<br />
on dry matter nutrient composition <strong>and</strong> nodulation in Siratro. Forage Res. 10<br />
(2): 1.31-134.<br />
Singh, O. P., Singh. R. P:<strong>and</strong> S'nha, N. C. (i 984) Agrophysiological variability of barley <strong>and</strong><br />
selection of components associated with seed yield potential S~i.& Cult.<br />
49: 370-72_<br />
I.<br />
Singh, R. P. <strong>and</strong> Sinha, N. C. (<strong>1984</strong>) Effect of irrigation frequency <strong>and</strong> poheduling on seed<br />
yield of berseem Ind. J. Seed <strong>Research</strong> (Accepted).<br />
Singh, R. P, <strong>and</strong> Sinha, N. C. (<strong>1984</strong>) Nature of chickory competition in Berseern. Ind. J.<br />
Agric, Sci. (Accepted).<br />
Sinha, N. c., Mehrotra,O. N. <strong>and</strong> .Mathur, .R. K. (<strong>1984</strong>) Physiological performance of tal1<br />
<strong>and</strong> dwarf varieties of barley. 153: 181-185'<br />
Sinh, N. C. <strong>and</strong> Singh, J. N. (<strong>1984</strong>) Influence of potassium deficiency aud seasonal variation<br />
on nitrogen metabolism, respiration rate <strong>and</strong> essential oil content Plant <strong>and</strong> Soil<br />
79 :~ 51-59.<br />
Sinha, N. C. <strong>and</strong> Singh, R. P. (<strong>1984</strong>) Agrophysiological suitability of weedicides on moong.<br />
Ind. J. weed Sci. (Accepted).<br />
\<br />
Sinha. N.C. <strong>and</strong> Singh R.P.(984)Agrophysiological selection of linuron in oat. Ind. J. Weed Sci.<br />
(Accepted).<br />
Shukla, G. p., PatiI, B. D. <strong>and</strong> Tripathi, S. N. (<strong>1984</strong>) Effect of gamma rays on an elite lint of<br />
Egyptian Clover. Forage Res. 10: 51-55.<br />
ShUKla, G. P., <strong>and</strong> Tripathi, S. N. (<strong>1984</strong>) 'Fertility studies in Egyptian clover with particular<br />
reference to pollen stability. J. <strong>Indian</strong> Bot. Soc., 63 : 161-64.<br />
( . 250 )
Shukla, N. P., Menhi Lal <strong>and</strong> Saxena', D. C. (<strong>1984</strong>) 'Effect ~fsoil moisture regimes on water<br />
use <strong>and</strong> forage production by oat, barley <strong>and</strong> triticale. <strong>Indian</strong> J. Agron, 29<br />
. (30) : 274-276..<br />
Tripathi, S. N. <strong>and</strong> Patil, B. D. (<strong>1984</strong>) Inter specific cross between Atylosia albicansar.d<br />
Atylosia scarabaeoides. Curr. Sci. vol. 53 No. 14: 755-757.<br />
Tripathi, S. N .• Patil, B. D. <strong>and</strong> Shukli, G. P. (<strong>1984</strong>) Phylogenie <strong>and</strong> hybridization potentials<br />
in Atylosia <strong>and</strong> Cajanus speciesForage Res. 10: 5-9.<br />
Tripathi, S. N., Singh. R. A. a-id Gill, A. S. (<strong>1984</strong>) Evaluation of cowpea varieties for fcr.ige<br />
<strong>and</strong> seed yields under different row spacings <strong>and</strong> levels of phosphate Agric, Sci.<br />
Digest 4 l2) : '102-104.<br />
Tripathi, S. N.; Singh, R: A, <strong>and</strong> Gill, A. S: (<strong>1984</strong>) Forage production potential of grasslegume<br />
crop sequence. Forage Res. 10 (I) ; 45-47.<br />
Tripathi,S. N., Singh, A. P. <strong>and</strong> Gill,' A. s, (<strong>1984</strong>) Effect of pure <strong>and</strong> mixedcropping of<br />
pennisetum pedicellatum with forage legumes on. forage <strong>and</strong> crude protein yields;<br />
<strong>Indian</strong> J. Agron. 29 (3) : 351-355.<br />
Verma, N. C. <strong>and</strong>-Majumdar; A. B. (<strong>1984</strong>) Quality <strong>and</strong>feeding value of maize as influenced<br />
by formaldehyde treatment <strong>Indian</strong> J. Animal sc, 54 : 568-570,<br />
Yadava, R. B. R. <strong>and</strong> Patil, B. D. (<strong>1984</strong>) Screen ing of cowdea- (Vigna unguculata.s Varieties<br />
for drought tolerence J. Genet & pI Breeding. Germany, 93 : 259-262.<br />
Yadava, R, B. R., PatH, B. D. <strong>and</strong> Verma, O. P. S. (<strong>1984</strong>) Seed production technology in<br />
forage through .chernical regulants-A review. Seed Res. 12: 1-18.<br />
Yadav, R. B. R., Verma, O. P. S. <strong>and</strong> Sastry. J. A. (<strong>1984</strong>) Response of lucerne (Madicaga<br />
sativa L.) to planofix. Farm <strong>and</strong> Seed 9 (5) : 22-24.<br />
Zadoc, 'S. N. (<strong>1984</strong>) Chromosomal interchange stocks in Sesbania aegyptica (PIOR)<br />
PERS Curro Sci. 53 : 993-94.<br />
Zadoo, S. N. (<strong>1984</strong>) Cytogenetic observations on a monosomic in Sesbania Macrocarpa<br />
Muhl, Experientia 40 : 1414.<br />
. ',.<br />
Zadoo, S. N. (<strong>1984</strong>) Cytological analysis of Pennisetum Pedicellatum Trin. accessions<br />
Cytologis (In Press).<br />
( 251
II.<br />
Papers presented in seminars!workshop /symposia.<br />
Bhagmal (<strong>1984</strong>) Genetic resources for varietal improvement in fodder oats, Presented at<br />
All India Forage Workshop held at <strong>IGFRI</strong>. Jhansi on 23-25 Sept.<br />
Bhag Mal<br />
(<strong>1984</strong>). Identification of promising varieties of fodder oats-a critical appraisal.<br />
Presented at All India Forage Workshop held at <strong>IGFRI</strong>. Jhansi on 23-25 Sept.<br />
Bhag Mal (<strong>1984</strong>). Progress <strong>Report</strong> on breeding trials conducted during 1983-84 at different<br />
centres in Central Zone. Presented at All India Forage Workshop held at<br />
<strong>IGFRI</strong>. Jhansi on 23-25 Sept.<br />
Deb Roy. (I984). Top feed - an important source of fodder production under rainfed<br />
conditions, Proc, workshop on Forage Production Tec.hnology, <strong>IGFRI</strong>, Jhansi<br />
22-29 August.<br />
Deb Roy,_ R (<strong>1984</strong>) Importance of trees/shrubs <strong>and</strong> their suitability for various agrc--climatic<br />
regions of our country. Xth <strong>Annual</strong> Workshop on AICRP (Forage Crops)<br />
<strong>IGFRI</strong>, Jhansi 23-25 Sept.<br />
H<strong>and</strong>a, D.P., Hazra, C. R., Sood, R. M. (<strong>1984</strong>) WeatJ:er analysis <strong>and</strong> climatological characterisation<br />
in Jalaun district of Bundelkh<strong>and</strong>, India Society of Ag. Statistics New<br />
Delhi, December.<br />
Gill, A. S'. (<strong>1984</strong>) Foroge production under various cropping systems. Workshop-cum<br />
Seminar on <strong>Fodder</strong> Production Technology held at <strong>IGFRI</strong>, Jhansi 22-29<br />
August.<br />
Gill, A. S. (<strong>1984</strong>) Studies on agro-forestry system. Workshop-cum-seminar on <strong>Fodder</strong><br />
Production Technology held at <strong>IGFRI</strong>, Jhansi, 22-29 August.<br />
Gill, A. S. (<strong>1984</strong>) Seed production problems in forage crops. Workshop-cum-seminar on<br />
<strong>Fodder</strong> production Technology held at <strong>IGFRI</strong>, Jhansi, 22-29 August,<br />
Hazra, C. R. <strong>and</strong> Patil, B. D. (<strong>1984</strong>) Role of Subabool in Agroforestry system. Seminar on<br />
(Alternate L<strong>and</strong> use in Dryl<strong>and</strong>): 18-21 December at CRIDA, Hyderabad,<br />
Kanodia, K.C. (<strong>1984</strong>). Pasture <strong>and</strong> its development, Presented at (Workshop-cum-seminar<br />
on Forage production technology under irrigated <strong>and</strong> rainfed conditions) held at<br />
<strong>IGFRI</strong>, Jhansi. 22-29 August,<br />
252 )
Menhi Ln.1<br />
Menhi Lal'<br />
Patil', B. D.<br />
;'<br />
(<strong>1984</strong>). Water management in forage crops. workshop-cum-semlnar on Forage<br />
Production Technology held <strong>IGFRI</strong>, Jhansi, 22-29 August.<br />
(<strong>1984</strong>). Forage production in desert soils. workshop-cum-seminar on <strong>Fodder</strong><br />
Production Technology held at <strong>IGFRI</strong>, 22-29 August.<br />
<strong>and</strong> Bhagmal (<strong>1984</strong>). Concepts in Plant ideotype development for agro-forestry<br />
Presented at Group meeting of All India Coordinated <strong>Research</strong> Project on<br />
Agro-Forestry held at <strong>IGFRI</strong>; Jhansi, 3-4 April'<br />
Pahwa, M,R. <strong>and</strong> Pati!, B D. (1'98A) Response of forage crops to Azospirillium brasilense<br />
inoculation. Golden Jubilee <strong>and</strong> 49th <strong>Annual</strong> Convention, Seminar on Soil<br />
Resources <strong>and</strong> Productivity hel I atIa Rl, New Delhi, 7-10 Dxember.<br />
Pahwa, M.R. (<strong>1984</strong>). Soil Microbiology in relation to for ige crops.<br />
on <strong>Fodder</strong>' Production Technology under irrigated<br />
<strong>IGFRI</strong>, Jhansi, 22-29 August.<br />
Workshop-cum-seminar<br />
<strong>and</strong> rainfed conditions,<br />
Pahwa, M.,R. (<strong>1984</strong>) Natural nodulation growth'<strong>and</strong> herbage productivity of some perennial<br />
tree legumes in different soils. Group meeting of Ali India Coordinated <strong>Research</strong><br />
Project on Agroforestry, <strong>IGFRI</strong>, Jhansi, 4-5 April,<br />
Pahwa, M.R. (<strong>1984</strong>) Effect of different, rhizobial cultures of nodulation growth <strong>and</strong> herbage<br />
yield of Subabool. Group meeting of AIl India Coordinated <strong>Research</strong> Project<br />
on Agroforestry, <strong>IGFRI</strong>, Jhansi:<br />
Shri Ram <strong>and</strong> Shivaikar, V. J. (19lf4) R-odent problem in North-Eastern Region <strong>and</strong> its<br />
management National symposium on Impact of Non-insect pests <strong>and</strong> predators<br />
on food production <strong>and</strong> enviornrn ent, Held at NRL., New Delhi, 19-14<br />
March.<br />
Shulka, N. P. (<strong>1984</strong>) Forage production under water Jogged. Workshop-cum-seminar on<br />
fodder production technology held at <strong>IGFRI</strong>, Jhansi. 22-29 August.<br />
Singh, A, P. <strong>and</strong> Rekib, A (<strong>1984</strong>) Feeding value of grass silage prepared with different levels<br />
of Urea, Seminar organised by animal Nutrition Society of India.<br />
Singh, Jai (<strong>1984</strong>), Statm paper on Agricultural Engineering <strong>Research</strong>, Development <strong>and</strong><br />
Testing Programme of <strong>IGFRI</strong>, Jhansi, Head of Engineering divisions meeting<br />
held at ICAR, Krishi Bhavan. New Delhi, 20-21 March.<br />
( 253 )
Singh, O. P. <strong>and</strong> Singh, R. P. (<strong>1984</strong>) Effect of N levels <strong>and</strong> seed rates on seed production of<br />
oats under late sown conditions, Symposium (Agronomy 2000 AD looking<br />
ahead).<br />
Tripathi, S.N. (<strong>1984</strong>). Package of practices for important fodder crops, Workshop-cum-seminar<br />
on <strong>Fodder</strong> Production Technology held at <strong>IGFRI</strong>, Jhansi, 22-29 August.<br />
Gupta, J. N., Gupta, S. R., Singh, U. P., <strong>and</strong> Dixit, O. P., (<strong>1984</strong>) Forage Plant Introduction<br />
<strong>Report</strong>er series E-I, <strong>IGFRI</strong>. pp 71.<br />
Gupta, J. N , Gupta, S. R. Singh U. P., <strong>and</strong> Dixit, O. P., (<strong>1984</strong>) Forage<br />
<strong>Report</strong>er (1980-83) Series CR-2, <strong>IGFRI</strong>. pp. 10.<br />
Plant Introduction"<br />
Hazra, C. R. <strong>and</strong> Kurothe. R. S. (<strong>1984</strong>) Master Plan of Watershed Tejpura-<strong>IGFRI</strong> (Memio)<br />
Patil, B. D., Faruqui S. A., Hazra, C. R., Tyagi, R. K.., Pathak, P. S. <strong>and</strong> Srivastava, A. K,<br />
(<strong>1984</strong>) A Core peoject on approach for fuel-forage production system for<br />
community grazing l<strong>and</strong>s of Shivpuri district. (Mernio}.<br />
PatH, B. D.,<br />
Faruqui, S. A., Hazra, C. R:, Tyagi, R. K., Pathak, P. S. <strong>and</strong> Srivastava, A.K.,<br />
(<strong>1984</strong>). Core project on appro ach for fuel-forage production system for<br />
community grazing l<strong>and</strong>s of Guna district (Mernio).<br />
PatH B, D. <strong>and</strong> Hazra, C. R. (<strong>1984</strong>), Village community grazing area-its management <strong>and</strong><br />
improvement for the f:Jrage <strong>and</strong> fuel production for the common benifit of the<br />
villagers. (Mernio)<br />
Patil, B. D.. Hazra, C. R" Deb Roy. R <strong>and</strong> Gill A. S. (<strong>1984</strong>). Agroforestry-a compilation<br />
of Institute based research with an accent on fodder-fuel-fertilizer producing<br />
biomass <strong>IGFRI</strong>, Jhansi (Mernio).<br />
254 )
Director<br />
B. D. Patii, Ph. D.<br />
I. Scientific<br />
Division of plant Improvement<br />
APPENDIX-I<br />
LIST OF STAFF<br />
(as on 31, December, <strong>1984</strong>)<br />
R. B. R. Yadav, Ph. D.• S-3 (Plant Physiology) & Head of Division<br />
Bhagmal, ph. D, S-3 (Plant Breeding)<br />
S. R. Gupta, Ph. D , S-2 (Economic Botany)<br />
S. T. Ahmed, Ph. D., S-2 (Plant Pathology)<br />
C. B. Singh, M.Sc., S-2 (Plant Breeding)<br />
S. K. Gupta; Ph. D., S-2 (Plant Breedingj<br />
R. N. Choubey, Ph. p., S-2 (Plant Breeding)<br />
n. S. Katyar, M. Sc., S-2 (Plant Breeding)<br />
G. P. Shukla, Ph. D., S-2 (Plant Breeding)<br />
S. N. Zadoo, Ph. D., S-2 (Genetics & Cytogentics)<br />
S. N. Tripathi, Ph. D., S-2 (Genetics & Cytogenetics)<br />
M. G. Gupta, Ph. D., S-2 (Genetics & Cytogenetics)<br />
S. A. Faruqui, Ph. D., S-2 (Entomology)<br />
K. C. P<strong>and</strong>ey, M. Sc., S-2 (Entomology)<br />
M. I. Azmi, Ph. D., S-2 (Nematology)<br />
R, K. Jain, M. sc., S-2 (Nematology)<br />
N. Hassan, Ph. D., S-2 (Nema tology)<br />
K. S. Kohli, Ph. D., S-l (Plant Breeding)<br />
o P. Dixit. M. Sc., S-1 (Plant Breeding)<br />
r<br />
D. N. Singh, Ph. D., S-1 (Plant Breeding)<br />
U. S. Mishra, M. Sc., s-t (Plant Breeding)<br />
M. N. Premach<strong>and</strong>ran, M. sc., S-1 (Genetics & Cyto Genetics)<br />
R. B. Bhaskar, M. Sc., S-1 (Plant Pathology)<br />
Arun Kumar, Ph. D.-, S-1 (Plant Pathology)<br />
H. K. Joshi, M. Sc., S-1 (Plant Pathology)<br />
O. P. S. Verma, M. se., S-1 (Plant Physiology)<br />
J. N. Gupta, Ph. D., S-1 (Economic Botany)<br />
U. P. Singh, M. Sc., s-i (Economic Botany)
Division of Agronomy<br />
A. S; Gill, M. Sc., S-3 (Agronomy) & Head of Division<br />
Menhi Lal, Ph. D., S-3 (Agronomy)<br />
Shivaji Prasad, M. Sc., S-2 (Agronomy)<br />
N, P.. Shukla, M. Sc., S-2 (Agronomy)<br />
Fateh Singh, M. Sc., S-2 (Agronomy)<br />
M. S: Raut, M. Sc., S-l (Agronomy)<br />
S. N. Tripathi, M. sc., 8-1 (Agronomy)<br />
R. S. Kurothe, M. Sc., 8-1 (Soil & Water Conservation)<br />
Division of Soil Science<br />
C. R. Hazra, Ph. D., S-3 (Soil Science) & Head of Division<br />
N. D. Mannikar, Ph. D., S-4 (Soil Science)<br />
C. R. Rawat, M. se. 8-2 (Agronomy)<br />
Dashrath Singh, Ph. D.,<br />
S-2 (Soil Science)<br />
M. R. Mahwa, Ph. D., S-2 (Soil Microbiology)<br />
B. R. Sharma, Ph. D., S-2 (Soil Science)<br />
R. K. Tyagi, Ph. D., S-2 (Geography)<br />
O. P. 8. Panwar, M. sc., S-l (Soil Science)<br />
S. B. Tripathi, M. SC" S-1 (Soil Science)<br />
I. Y. L. N. Murthy, M. Sc., s-i (Agriculture Chemistry)<br />
Mrs. N. Kewalramani, Ph. D., 8-1 (Animal Nutrition)<br />
P. B. Modwell, M. se. S-1 (Physics)<br />
Division of <strong>Grassl<strong>and</strong></strong> Management<br />
K. C. Kanodia, Ph. D., 8-3 (Economic Botany) & Head of Division<br />
P. K. Jayan, Ph. D., S-2 (Economic Botany)<br />
B. K. Trivedi, Ph. D.,S-2 (Economic Botany)<br />
P. Rai. Ph. D., S-2 (Agronomy)<br />
K. A. Singh, M. sc, S-2 (Agronomy)<br />
G. K. Dvivedi, M. Sc., S-1 (Agronomy)<br />
S. S. Parihar, M. sc., S-1 (Economic Botany)<br />
Division of Agrosilvipasture<br />
R. Deb Roy, M. se., 8-4 (Economic Botany) & Head of Division<br />
P. S. Pathak, Ph. D.,S-3 (EconomicBotany)<br />
D. 8. Chauhan, Ph. D., 8-3 (Agronomy)<br />
V. K. Gupta, Ph. D., 8-2 (Plant Breeding)<br />
( II )
R. C. Singh, M. Sc., S-2 (Agronomy)<br />
M. M. Roy, M. Sc., S-l (Economic Botany)<br />
s. K. Gupta, M. Sc., S-l (Economic Botany)<br />
T. A. Khan, M. se., S-l (Statistics)<br />
Division of Seed Technology<br />
R. P. Singh, Ph. D., S-3 (Agronomy) & Head of Division<br />
Shree Ram, Ph. D., S-3 (Entomology)<br />
o P. Singh, Ph. D., S-2 (Agronomy)<br />
P. N. Mathur, Ph. D., S-2 (Plant Breeding)<br />
S. N. Singh, Ph. D., S-2 (Plant Pathology)<br />
N. C. Sinha, P:l. D., S-2 (Plant Physiology)<br />
K. P. Niranjan, M. Sc , S-l (Agronomy)<br />
K. P. Singh; M. sc , S-l (Genetics)<br />
V. J. Shivankar, Ph. D., S-l (Entomology)<br />
S. M. Mishra, Ph. D., S-l (Soil Science)<br />
Division of WEe<br />
T. R. Dutta, Ph. D" S-5 (Plant Physiology)<br />
R. K. P<strong>and</strong>ey, M. Sc., S-2 (Agronomy)<br />
Division of PAR<br />
R. K. Gupta, Ph. D., S-4 (Organic Chemistry) & Head of of Division.<br />
A. Rekib, Ph. D., S-4 (Animal Nutrition)<br />
V. C. Pachauri, Ph. D., S-3 (Animal NUtrition)<br />
P. Kumar, Ph. D. S-3 (Animal Nutrition)<br />
A. P. Singh, Ph. D., S-3 (Agriculture Chemistry)<br />
S. C. Gupta, M. Sc , S-2 (Analytical Chemistry)<br />
V. S. Upadhyay, M. Sc" S-2 (LPM)<br />
J. p. Varshney, M. V. sc.• S-2 (Veternary Medicine)<br />
R. S Upadhyay, M. V. se., S-2 (Animal Nutrition)<br />
N. C. Verma, M. sc., S-2 (LPM)<br />
A. B. Majumdar, M. ·SC., S-2 (Bio Chemistry)<br />
S. Rangaswami, M. sc., S-l (Organic Chemistry)<br />
L. K. Karnani, M. se., S-1 (Agriculture Chemistry)<br />
K. S. Ramach<strong>and</strong>ra, Ph. D., s-r (Animal Nutrition)<br />
J. N. Sebastien, M. Sc., S-l (Organic Chemistry)<br />
B. K. Bhadoria, M. se., S-1. (Organic Chemistry)<br />
Division of Agricul ture Engineering.<br />
Jai Singh, Ph. D., S-4 (Agriculture St. & rroc. Engg.)<br />
R. B. Vershney, B. Tech., S-2 (Soil Water Engg.)<br />
( iii.
J. K. Singh, M. Tech., S-1 (F. M. P.)<br />
J. M. Sood, M. Tech., S-1 (S.W.E.)<br />
Division of REB<br />
D. P. H<strong>and</strong>a. M. A., S-2(Stat.) & Head of Division<br />
P. R. Sreenath, M. A., Dip. Agriculture Stat. S-3 (Statistics)<br />
I. P. S. Yadav, M. se., S-2 (Economics)<br />
Mallayaswami, M. A" S-1 (Economics)<br />
A. K. Sharma, M. A., S-1 (Ecenomics)<br />
Ram Ashrey Singh. M. A.,.S-1 (Economics)<br />
Ashok Kumar, M. SC" S-1 (Statistics)<br />
R. M. Sood M. sc , S-O (Statistics)<br />
Inder Singh, M. Sc.,S-O (Statistics)<br />
Division of Extension<br />
M. R. Lokh<strong>and</strong>e, Ph. D., S-3 (Ex tn.) & Head of Division<br />
W; L. Barwad, M. se., S-2 (Entomology)<br />
H. L. Gazbhie, M. Sc .• S-2 (Entomology)<br />
Dalaur Singh, M. Sc., 8-1 (Extn)<br />
Maharaj Singh, M. Sc., S-1 (Extn)<br />
Forage Project<br />
Khubi Singh, M. A., S-1 (Statistics)<br />
S. D. Gupta, M. se., (Ag) S-O (Agronomy)<br />
Sub-Station Manasbal (J &K)<br />
B.K. Misri, Ph. D., S-2 (Economic Botany) & lie Sub-Station<br />
II. Technical<br />
A. K; Srivastava, Sr. Technical Assistant<br />
M. M. Rastogi, Sr. Library Assistant<br />
C. B. Mishra, Photographer-cum-Artist<br />
H. B. Dhingra, L<strong>and</strong> Surveyor<br />
S. K. Rajpali, sr, Te::hnical Assistant<br />
Mahavir Singh, Farm Assistant<br />
III Administrative<br />
A. S. Bhati, Administrative Officer<br />
J. K. Kewalramani, Administrative Officer<br />
R. S. Chauhan, Superintendent<br />
H. C. Saxena, Superintendent<br />
IV. Auxilliary<br />
V. K. Litoria, Jr. Medical Officer<br />
( iv )
APPENDIX-II<br />
Statement showing the total number of employees in the Institute <strong>and</strong> the number of Scheduled<br />
Castes/Scheduled 'I'ribes amongst them as on 31st July, <strong>1984</strong>.<br />
S. No. Class of posts Total number of Total number of Total number of Total number of Remarks.<br />
posts sanctioned employees in S/C among them SIT among them<br />
(Viable) position.<br />
1. Scientific posts<br />
Scientist S-O 7<br />
7<br />
1<br />
- In rolling plan<br />
Scientist S-1 81<br />
53<br />
5<br />
- some of the posts<br />
Scientist S-2 46<br />
33<br />
2<br />
1 which could not<br />
Scientist S-3 13<br />
13<br />
- remain viable during<br />
2. Technical posts:<br />
Vth plan could<br />
Category I 49<br />
29<br />
9<br />
2 not be considered<br />
Category II 34<br />
18<br />
4<br />
- as sanctioned, <strong>and</strong><br />
Category III 4<br />
continuing. The<br />
3. Administrative posts<br />
same had been<br />
SAO/AD/Accounts Officer etc. 4<br />
2<br />
- reflected in VIth<br />
AAO/Supdt/Supt (A&A) 7<br />
2<br />
- Plan proposa1s<br />
Assistant 9<br />
5<br />
2<br />
- <strong>and</strong> these could<br />
Stenographers (Sr. <strong>and</strong> Jr.) 15<br />
6<br />
- not be non-plan<br />
Senior Clerks 27<br />
25<br />
7<br />
2 posts.<br />
Junior Clerks 17<br />
14<br />
4<br />
4; Supporting staff<br />
Grade IV 7<br />
Grade III 13<br />
Grade II 26<br />
Grade I 119<br />
2<br />
10<br />
16<br />
38<br />
1<br />
6<br />
15<br />
1<br />
5. Supporting staff (Safaiwala) 7<br />
7<br />
7<br />
6. AuxilIary posts 15<br />
15<br />
4