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STUDIES ON THE EFFECT OF PLANT GROWTH REGULATORS ON FLOWERING production in gladiolus cv. Jacksonvilla Gold. Journal of Research ANGRAU 35 (1): 6-14. Havale, V. B., Tawar, R. V., Hage, N .D., Kakad, G. J., Fathepurkar, S .C and Sable, A .S 2008. Effect of growth regulators and chemicals on growth and flowering of gladiolus. Asian Journal of Horticulture. 3(1) : 93-94. King, R. W., Blundell, C and Evans, L .T 1993. The behavior of shoot apices of Liliumtemulentum in vitro as the basis of an assay system for florigenic extracts. Australian Journal of Plant Physiology 20 (3): 337-348. Kumar, P .N., Reddy, Y N and Chandra shekar, R. 2007. Flower induction in gladiolus cormels by application of chemicals. Journal of Ornamental Horticulture 9 (3):174-178. Levy, D, Sea, brook, JEA and Coleman, S 1993. Enhancement of tuberization of axillary shoots, buds of potato Solanumtuberosem L. cultivars cultured in vitro.J. Exp. Botany 44 : 381- 386. Maurya, R. P and Nagda, C .L 2002. Effect of growth substances on corm and cormel yield in gladiolus Gladiolus grandiflorusL.cv. Friendship. Haryana Journal of Horticultural Sciences 31(1-2): 60-61. Mukhopadhyay, A and Banker, G. J 1986. Preplanting soaking of corm with gibberellic acid modified growth and flowering of gladiolus cultivar ‘Friendship’. Indian Agriculturist 30(4): 317-319 Ogawa, Y and King, R. W 1994. Flowering in seedlings of Pharbitis nil induced by benzyladenine applied under a non-inductive day length Plant Cell Physiology, 21: 1109-1116. Pranav Rana, Jitendra, Kumar and Mukesh, Kumar 2005 Response of GA 3, plant spacing and planting depth on growth, flowering and corm production in gladiolus. Journal of Ornamental Horticulture (New Series) 8 (1): 41-44. Rajesh, Bhalla and Ajay Kumar 2007. Response of plant bio-regulators on dormancy breaking in gladiolus Journal of Ornamental Horticulture 10 (4) : 215-221. Ravidas, L., Rajeevan, P K and ValasalaKumari 1992.Effect of foliar application of growth regulators on the growth, flowering and corm yield of gladiolus cv. Friendship. South Indian Horticulture 40(6): 329-335. Sachs, R. M., Hackett W. P., Ramina A and Maloof. C 1979. Photosynthetic assimilation and nutrient diversion as controlling factors in flower initiation in Bougainvillea (San Diego Red) and NIcotianfatabacum cv. WIs.38 In :MArcelle R, clysters H and Van Poucke M (eds). Photosynthesis and plant development. Dr. W. Junk, The Hague p. 95-102. Sharma, H. G., Verma, L. S., Jain and Tiwary, B .L. 1995. Effect of foliar application of some plant growth regulators on growth and flowering of chrysanthemum var. Move-in-Carvin. Orissa Journal of Horticulture 23(1-2): 61-64. Singh, M. K., Parmar, A .S and Rathore, S. V. S 2002. Corm production in gladiolus as affected by size of cormels and GA 3 application. In: Floriculture Research Trend in India. Misra R L and SanyatMisara (eds.). Proceedings of the National Symposium on Indian Floriculture in the New Millenium held during 25-27 th February, 2002 at Bangalore. pp. 246-248. Tawar, R .V., Sable, A .S., Kakad, G. J., Hage, N D and Ingle M B 2007. Effect of growth regulators on corms and cormels production of gladiolus (cv. Jester). Annals of Plant Physiology 21 (2): 257-258. Umrao, V .K., Vishal, Sharma and Baldev, Kumar 2007. Influence of Gibberellic acid spraying on gladiolus cv. rose delight. Progressive Agriculture 7 (1-2): 187-188 Vijai, Kumar and Singh, A. R 2008. Effect of GA 3 and growing medium on growth, flowering and corm production in gladiolus. Progressive Agriculture 8 (2) :, 165-168. 15
J.Res. ANGRAU 41(2) 16-20, 2013 PERFORMANCE OF DRUM SEEDER IN DIRECT SOWN PADDY UNDER PUDDLED CONDITION M.VISALAKSHI and A.SIREESHA Regional Agricultural Research Station, Acharya N.G.Ranga Agricultural University, Anakapalli -531 001 Date of Receipt : 02.11.2012 Date of Acceptance : 10 .05.2013 ABSTRACT Field experiments were conducted on direct sown paddy using eight-row drum seeder under puddled condition in farmers fields of Vizianagaram district, Andhra Pradesh during Kharif season for three years from 2007- 2008 to 2009-2010 to evaluate the efficiency of drum seeder at different seed rates. (20, 30 and 40 kg ha -1 ) and optimum seed rate was quantified. The results showed that use of drum seeder at 30 kg seed ha -1 recorded increased grain yield by 26 and 22 per cent (7.58 t ha -1 ) respectively over that of 20 and 40 kg ha -1 seed rate. It was also found superior to normal transplanting and broadcasting of sprouted seed @ 75 Kg ha -1 . Drum seeder technology at 30 kg seed per ha reduced the seed rate by 45 kg ha -1 compared to broadcasting of seed on puddled soil and resulted in higher returns to farmers over normal transplanting/ broadcasting of sprouted seed. Transplanting is the most common method of crop establishment in rice cultivation under low land situation and is highly labour-intensive and expensive operation. In contrast, broadcasting of seed causes uneven plant stand, low yields and returns. In Vizianagaram district, Andhra pradesh, the major rice area is under tanks and success of crop depends on rainfall received. In many years overaged seedlings are planted due to delayed monsoon. Further, transplanting is not profitable due to high labour wages and problem of non-availability of labour during peak period of operation (Singh et al.,2005). Transplanting alone costs about 15% of total rice production cost and delayed transplanting due to labour shortage causes sustainable loss in yield (Ponnuswamy et al.,1999). Therefore, there is need of alternative methods to replace transplanting to tackle the problems of high cost of production and labour scarcity. Direct sowing of sprouted seed in puddled fields using drum seeder reduces the input costs i.e.,cost of seed, nursery raising, transplanting and it is a good method under late onset of monsoon . The present study was conducted in farmers fields to fine tune drum seeder technology with different seed rates for its large scale adoption and higher yields. MATERIALS AND METHODS The DAATT Centre,Vizianagaram introduced 8 row paddy drum seeder made of fibre supplied by KSNM marketing, Coimbatore through AGROS during kharif, 2007 in Vizianagaram dsitrict. On farm trials were conducted during kharif season of 2007, 2008 and 2009 to demonstrate the performance of drum seeder for direct sown paddy under puddled condition. Five villages were selected to carry out on-farm trials on purposive random sampling. These five villages were considered as five replications. Two hectares was allotted as a representative area for testing the performance of drum seeder in farmers fields with 5 treatments viz.,T 1 , farmer’s practice of transplanting; T 2 , farmer’s practice of broadcasting seed using 75 kg ha -1 ; T 3 ,seeding sprouted seed @ 20 kg seed ha -1 using drum seeder; T 4 , seeding sprouted seed @ 30 kg seed ha -1 using drum seeder; T 5 , seeding sprouted seed @ 4 0 kg seed ha -1 using drum seeder . Seeding of nursery was also done on the same day and 30 day old seedlings were transplanted in T 1 and 75 kg ha -1 dry seed was broadcasted in T 2 . In treatments T 3, T 4 and T 5 , sprouted seeds were sown at three seed rates using drum seeder. For direct sowing using drum seeder, the paddy seeds are soaked in water for 24 hours followed by incubation in gunny bags for 24-48 hours depending upon the rice variety and prevailing temperature. The field was well puddled and levelled after draining the standing water before sowing to avoid damage of sprouted seed and to enable water to spread uniformly over the field. After puddling, the field is left for 1-2 days for settling of the puddled soil. Using drum seeder, seed rate required for direct email: visalamahanthi@yahoo.co.in 16
Page 2 and 3: CONTENTS PART I : PLANT SCIENCE Ads
Page 4 and 5: J.Res. ANGRAU 41(2) 1-10, 2013 ADSO
Page 6 and 7: ADSORPTION DESORPTION OF PENDIMETHA
Page 14 and 15: J.Res. ANGRAU 41(2) 11-15, 2013 STU
Page 16 and 17: STUDIES ON THE EFFECT OF PLANT GROW
Page 20 and 21: PERFORMANCE OF DRUM SEEDER IN DIREC
Page 22 and 23: PERFORMANCE OF DRUM SEEDER IN DIREC
Page 24 and 25: J.Res. ANGRAU 41(2) 21-25, 2013 EFF
Page 26 and 27: EFFECT OF GRADED LEVELS AND TIME OF
Page 28 and 29: EFFECT OF GRADED LEVELS AND TIME OF
Page 30 and 31: ASSESSMENT OF GENETIC DIVERSITY IN
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Page 38 and 39: ESTIMATION OF HETEROSIS FOR YIELD A
Page 46 and 47: INTEGRATED EFFECT OF ORGANIC MANURE
Page 48 and 49: INTEGRATED EFFECT OF ORGANIC MANURE
Page 50 and 51: SCREENING OF LOCAL RHIZOBIAL ISOLAT
Page 56 and 57: CHARACTERIZATION AND CLASSIFICATION
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Page 64 and 65: IDENTIFICATION OF SUPERIOR PARENTS
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IDENTIFICATION OF SUPERIOR PARENTS
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IDENTIFICATION OF SUPERIOR PARENTS
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EFFECT OF FRONT LINE DEMONSTRATIONS
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EFFECT OF FEEDING COMPLETE FEED CON
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EFFECT OF FEEDING COMPLETE FEED CON
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EFFICACY OF CONTROLLED INTERNAL DRU
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EFFECT OF NSP ENZYMES AND PREBIOTIC
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HAEMATOLOGICAL AND BIOCHEMICAL PROF
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HAEMATOLOGICAL AND BIOCHEMICAL PROF
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INDIAN BREAD MAKING TOOLS - CONSUME
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Research Notes J.Res. ANGRAU 41(2)
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CROP COEFFICIENTS FOR DRIP AND CHEC
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STUDY ON THE EFFECT OF IRRADIATION
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EVALUATION OF DEFOLIANTS ON MUNGBEA
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YIELD, NUTRIENT UPTAKE AND ECONOMIC
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YIELD, NUTRIENT UPTAKE AND ECONOMIC
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NANO FOOD COLOURS FOR PRODUCT FORMU
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EFFECT OF ORGANIC FERTILISERS ON GR
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EFFECT OF ORGANIC FERTILISERS ON GR
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NUTRIENT UPTAKE OF MICROSPRINKLER I
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EFFECT OF SYNERGIST, TRIPHENYL PHOS
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EFFECT OF SYNERGIST, TRIPHENYL PHOS
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EFFECT OF HARVESTING STAGES AND DRY
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RESPONSE OF AEROBIC RICE TO IRRIGAT
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RESPONSE OF AEROBIC RICE TO IRRIGAT
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DRIP IRRIGATION SCHEDULE FOR CASTOR
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CHARACTER ASSOCIATION AND PATH COEF
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CHARACTER ASSOCIATION AND PATH COEF
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Statement about ownership and other
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GUIDELINES FOR THE PREPARATION OF M
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ESSENTIAL REQUIREMENTS FOR CONSIDER
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