Scientific Papers Series A. Agronomy

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Figure 1. Location map of the study area and sampling points Figure 2. Histogram of EC values, μS.cm-1 in studied soil samples Figure 3. Histogram of pH values in studied soil samples 121
Figure 4. Scores plot of the soil samples Factor 1 explained 100% of data variance, separated four groups of soil samples clearly. PC1 completely described variable – soil electrical conductivity, therefore EC is dominant soil parameter for groups formation than pH. Group 1 occupied distinctly different area in multimensional space far from others. The soil samples belongs to that were moderately salty with EC from 2050 to 2057 μS.cm -1 . Group 3 and Group 4 formed two groups at a short distance for each other. It is not surprising because samples of that two groups are non-saline with EC from 444 to 730 and from 123 to 356 μS.cm -1 , respectively. Group 2 occupied an area between Group 1 and the others. Soil samples belonging to that group were slighly saline with EC from 1014 to 1402 μS.cm -1 . On the basis of PC analysis result nonhierarchical clustering via K-means methodology was applied to group vascular plants based on their similarity with regard to the studied soil properties. Four clusters (groups) were specified in advance. As a result of the conducted floristic studies during the vegetation period of 2011-2012 a total of 112 species of vascular plants have been found in the studied territory. The present analysis includes the 57 species registered during sample taking. The results about grouping of the studied vascular plants according to soil properties are presented in Table 1. Predominant among them are the representatives of Poaceae and Cyperaceae families. Group 1 comprises 9 species occurring at EC from 2012 to 2057, μS.cm -1 (Table 1). Five of these – Carex distans Host., Elymus elongatus (Host.) Runemark, Hordeum hystrix Roth and Taeniatherum caput-medusae (L.) Nevski are among the species registered with the most numerous populations in the studied territory and one – Rorippa sylvestrys (L.) Besser is of the species represented by the least numerous populations. Seven of the plant species included in group 1 incl. the five species represented by the most numerous populations and the two species of the genus Trifolium -T. repens L. and T. resupinatum L. are among the ones mentioned by Tzonev and Gussev (2011) as characterizing the inland salt meadows taxa. The other two species of Group 1– Carex divisa Huds and Rorippa sylvestrys are mentioned by Delipavlov and Cheshmedzhiev (2003) for saline locations in various parts of the country. In Group 2 there are 17 species registered at EC from 695 to 1065, μS.cm -1 . The most numerous populations during the study have been found for six species – Carex distans, Juncus gerardii Loisel, Elymus elongatus, Hordeum hystrix,Taeniatherum caput-medusae, Mentha pulegium L. The first five species plus 4 more of the species included in that group-Cynodon dactylon (L.) Pers, Dianthus campestris Willd., Trifolium repens and Trifolium resupinatum are among the ones mentioned by Tzonev and Gussev (2011) as characterizing inland salt meadow taxa. The last species- Mentha pulegium is pointed out by Ganchev et al. (1971) as an accompanying species in grass communities formed in depression areas on medium and slightly saline soils. A part of the other representatives of group 2 such as Alopecurus genuculatus L., Bromus commutatus Guss. ex Steud, Carex divisa, etc. are hygrophytes tolerant to moderate soil salinity, another part such as Pulicaria vulgaris Gaertn and Ranunculus constantinopolitanus d’ Urv are ruderal plants tolerant to slight soil salinity. In group 3 there are a total of 30 species of vascular plants distributed at EC from 356 to 529, μS.cm -1 ), and in Group 4 there are a total of 27 species distributed at EC from 75-307, μS.cm -1 ) (Table 1). The most numerous populations of plants included in the two groups during the study have been registered for Carex distans, Elymus elongatus, Hordeum hystrix, Bolboschoenus maritimus Palla, Ranunculus aquatilis L., Butomus umbellatus 122
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SCIENTIFIC PAPERS SERIES A. AGRONOM
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University of Agronomic Sciences an
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SUMMARY SOIL SCIENCES Variation of
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A survey study on determination of
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Effects of different nitrogen forms
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Determine the effect of some cultiv
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SOIL SCIENCES
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K + /Na + ratio that ultimately pre
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ZINC POLLUTION OF SOILS LOCATED INT
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as the result of the plant protecti
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OBTAINING OF HUMATE-BASED LIQUID FE
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an 11.6% mass loss and a 145.5 J/g
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mijloc important de fertilizare ech
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collected on 13/09/2012 at the dept
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Table 3. The Influence of mineral f
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CONCLUSIONS The Hybrid rapeseedseed
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Scientific Papers. Series A. Agrono
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CONCLUSIONS The results have shown
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organic carbon was determined thoug
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THE INFLUENCE OF SOIL TILLING SYSTE
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emerging plant, we recommend using
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at the cellular level of Ni (Bou et
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concentrations in agricultural soil
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Surfaces at the bottom shows higher
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substantial balance that means maxi
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Table 4. Aggregate composition and
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1. The initial parameters of ordina
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Table 8. Modification of the featur
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Abstract Scientific Papers. Series
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the linear correlation coefficient
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CONCLUSIONS For soil polluted with
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50 and 100 mg/kg and appreciated th
Page 71 and 72: Figure 4. Copper content in soil Fi
Page 73 and 74: samples collected in northern of fa
Page 75 and 76: MATERIALS AND METHODS Study areas T
Page 77 and 78: influenced by heavy metals contamin
Page 79 and 80: Pankhurst C.E., 1997. Biodeversity
Page 81 and 82: horizons, color, texture, structure
Page 83 and 84: From a chemical reaction these soil
Page 85 and 86: - Organic matter by Tiurin; - pH (H
Page 87 and 88: Abstract Scientific Papers. Series
Page 89 and 90: RESULTS AND DISCUSSIONS Invertebrat
Page 91 and 92: of moisture in arable layers, incre
Page 95 and 96: experimentation. The increase of mo
Page 97 and 98: THE TRANSITION PERIOD TO THE MARKET
Page 99 and 100: Activity data Activity data comes f
Page 101 and 102: Figure 2. The decrease of cultivate
Page 103 and 104: of nitrous oxide. In: Revised 1996
Page 105 and 106: Laboratory results have been interp
Page 107 and 108: The air-mass interferes with the ov
Page 109 and 110: Under these conditions, Moldavian r
Page 111 and 112: decreased to near wilting coefficie
Page 113 and 114: CONCLUSIONS Severe drought that aff
Page 115 and 116: (temperature and soil moisture, air
Page 117 and 118: primary cultures analyzed, hybrids
Page 119 and 120: weeding crops during the growing se
Page 121: improper drainage and irrigation (G
Page 125 and 126: Table 1. Cluster analysis of the st
Page 127 and 128: DIFFERENTIATION OF FERTILIZATION RA
Page 129 and 130: Figure 2. Situation and location of
Page 131 and 132: Statistical data processing For the
Page 133 and 134: Phosphorus and potassium fertilizer
Page 135 and 136: 30 m. Regarding the formation and d
Page 137 and 138: considerably less. These facts are
Page 139 and 140: Table 2. Hydraulic dimensioning Par
Page 141 and 142: SPATIAL VARIATION OF PHYSICAL CLAY
Page 143 and 144: Figure 2. Situation and location of
Page 145 and 146: esistant to high clay content in th
Page 147 and 148: CONCLUSIONS Described regularities
Page 149 and 150: ecome widespread and in order to ea
Page 151 and 152: Table 3. Results of the analysis of
Page 153 and 154: COMPARISON OF SYSTEMS FOR TAXONOMY
Page 155 and 156: RESULTS AND DISCUSSIONS Soil types
Page 157 and 158: underdeveloped cinnamon forest soil
Page 159 and 160: Figure 8. Content of skeletal fract
Page 161 and 162: MODEL FOR INVESTIGATION, AMELIORATI
Page 163 and 164: RESULTS AND DISCUSSIONS Characteris
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Page 167 and 168: Such characteristics require the ne
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Australia) with high resolution nit
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some important medicinal plants of
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RFV = [120 / NDF] × [88.9 - (0.779
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average at Viani - Brila County). A
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Figure 1. Dry above-ground biomass
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County) and 30.29% (CERA 270 hybrid
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phenological stages were found to h
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STUDIES REGARDING THE INFLUENCE OF
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ainfall were able to have a negativ
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Figure 7. Thermo-hydric stress fact
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In Romania is grown a large assortm
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Mainly vitamin C, E and polyphenols
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soluble compounds with antioxidant
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primarily the water-soluble antioxi
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has a split-split-plot design with
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Kovács B., Gyori Z., Prokisch J.,
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pays off (Mares et al., 2004; Gonz
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Table 3. Tested variants V1 Control
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about the inner value of flora. The
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MATERIALS AND METHODS Biological ma
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Figure 2. Correlation between prote
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CONCLUSIONS Production and quality
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The following presents several tech
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3. Evolution of total weed number i
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RESEARCH ON APPLICATION OF NPK FERT
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Also increase production significan
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In April 2012, the pre-sowing proce
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difference with the hoed control sa
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RESULTS AND DISCUSSIONS Data about
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Table 7. Proved difference between
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Table 1. Variance analysis experien
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Amongst the three precocity groups,
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ACKNOWLEDGEMENTS This study was car
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to present genetic sources of resis
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REFERENCES Antonova T.S., Araslanov
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Halstedii is necessary to identify
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EFFICIENCY OF UTILIZATION OF ASELEC
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to separate the effects of genotype
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INFLUENCE OF THE CLIMATIC CONDITION
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In 2012, at NARDI Fundulea, data fr
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parameter from the treated variants
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Table 6. The effectiveness of some
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Table 1. Probability of the meteoro
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At 50% DI in EOF, only a small part
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This was probably due to the specif
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under deficit irrigation. This prov
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RESULTS AND DISCUSSIONS Intervals w
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productions from one year to anothe
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epresented by soil ecologization an
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new created ones as a basic conditi
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The highest number of kernels per e
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Table 8. Average weight of thousand
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CONCLUSIONS The drought from the ye
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IWM as appropriate, necessary studi
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100% in the first 6 weeks of growth
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locules boll -1 (0.02), seeds locul
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Bhutto H., Baloch M.J., Yousaf M.,
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Table 4. GCA effects for morpho-yie
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MATERIALS AND METHODS This study wa
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vegetation of each of the swaths, i
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Sudangrass hybrids depending on the
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The parameters of biomass and dry m
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transplanting and ½ applied at fir
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Fertilization Forms Table 2. The me
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growing agricultural farms; evoluti
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In this area, priority must be to p
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soybean seeds are found farms that
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are a better material for haploid i
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Figure 6. Embryo and endosperm mark
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RESEARCHES CONCERNING THE INFLUENCE
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Table 1. The influence of seeding d
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Exagone hybrid. Thus, when sown at
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Table 9. The influence of sowing di
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MATERIALS AND METHODS In order to k
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Table 3. Genotype influence on whea
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Romanian varieties from the experim
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Table 2. Efficacy of some fungicide
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ROMANIAN WHEAT - STRATEGIC PRODUCT
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exceeded 2,000 thou ha, and maximum
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Values over 26% wet gluten were det
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effective and can build a significa
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grassland. This method is commonly
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RESULTS REGARDING DROUGHT RESISTANC
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average for this period is 170.6 mm
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Hybrid FAO grupe Table 2. The main
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length has lowest values at the unt
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CHARACTERISTICS OF SECOND GENERATIO
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developed in Dobrudzha Agricultural
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Table 5. Cytological characteristic
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We can see in the table that all li
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RESULTS AND DISCUSSIONS Mean compar
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Table 4. Statistical interpretation
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COMPARATIVE STUDY OF CONVENTIONAL A
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Improved sunflower hybrids for use
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differences in production to contro
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International Center for Agricultur
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Table 3. Evaluation of Genotypes fo
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Table 1. Characteristics of city sl
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Table 4. Amount of the rainfall dur
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ECOLOGICAL AGRICULTURE
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maize had a density of 5 plants/m 2
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CONCLUSIONS In terms of productivit
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amino acids, such as 4-hydroxyisole
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Table 5. Determining chlorophyll pi
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PROPOSALS ON TECHNOLOGY OF MOVING A
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These are the main technical charac
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FUNGAL BIODIVERSITY AND CLIMATE CHA
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Climate change effects and Dobrogea
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Figure 10. Pure culture of benefici
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MANAGEMENT OF BENEFICIAL MICROORGAN
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microorganisms DSMZ Braunschweig -
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Protocol of research and reporting
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“HERBAL MEDNET” AN INNOVATIVE A
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Figure 2. Value of global herbal ma
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Figure 3. The Allelopathy effect on
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AGRICULTURAL ENGINEERING AND RENEWA
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Research was also aimed at observin
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Leaf production of dry matter per h
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cooking oil and jatropha oil (Vonsh
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machines, many different fat extrac
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Table 4. The nutrient content Conte
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Figure 21. Dunaliella salina sp. ch
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for the decline is the growing numb
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Tractor power seemed the obvious wa
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Figure 4 shows that in 17 post war
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their employability, help raise the
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. Scientific Papers. Series A. Agro
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through the sprinkler irrigation. A
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Figure 5. Overlapping sprinklers wi
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CLIMATE CHANGE AND AGROMETEOROLOGIC
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Bulgaria to the use of agroclimatic
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Figure 9. Duration of the period so
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Figure 18. Evapotranspiration of wi
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RESULTS AND DISCUSSIONS After scari
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The influence of the texture on the
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Figure 6. Area of land planted with
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APPLIED BIOLOGY IN AGRICULTURAL SCI
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MATERIALS AND METHODS Researches we
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RESEARCHES REGARDING EVOLUTION OF S
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gradually reduce towards the end of
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According to that, the aspect of th
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etween classes of variation with ma
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Table 2. Average heights of Lycium
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V 1 V 2 Table 6. Average shoot leng
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Table 13. Average dry substance of
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centrifuge (7000 rev/min. during 20
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7, Streptomyces sp. 9, and Streptom
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laboratory of Biology, USAMV Buchar
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SOME NEW SPECIMENS FOR ZOOLOGICAL T
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New reptiles for our teaching colle
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Figure 1. Scatter plot of odontosty
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Table 4. Measurements of Xiphinema
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Malus pumila and P. avium are new h
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- the mean, minimum and maximum mon
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The monthly mean of the flow highli
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longer in balance with the existing
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ecording the encountered plant spec
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Mediterranean (3), Balkan (1), Cent
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Table 3. Segetal species of the Top
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of sugar/flower and the honey poten
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Territorial concentration of mellif
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CONCLUSIONS In Giurgiu County there
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farm (Awake, 1998). Rahman et al. 2
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Table 3 shows that there was a high
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RESULTS AND DISCUSSIONS x, k, r, R
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Figure 3. Us-Pressure Relations of
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