Scientific Papers Series A. Agronomy

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REFERENCES Figure 1. QBS value in three different seasons CONCLUSIONS In the period April-September 2011 for the first time in Bulgaria QBS index have been applied for assessment of microarthropod community structure in contaminated soil (CS) with heavy metals and non-contaminated soils (NC). Differences between QBS value of the polluted with heavy metal soils and non-contaminated soils allows assessing the degradation level of soil. Nevertheless this method is biotic index and as such its diagnosis capability can be limited. The results of this study suggest that not only the permanent grassland but also the arable land can be appropriate agroecosystems for preserving the soil microarthropod communities even in the heavy metals contaminated soils. Differences among the studied habitats were not only observed in taxa diversity but also in seasonal population dynamics, another factor of diversity in soil communities. ACKNOWLEDGEMENTS Funding was provided, in part by research project Assessment of bioindicators for monitoring of soil and environmental risk for the development of programs for sustainable management of contaminated and exposed to anthropogenic pressure areas No DTK1/02/2010. The project was financed from Ministry of Education and Science. Bird S., Robert N.C., Cosseley D. A., 2000. Impacts of silvicultural practices on soil and litter arthropod diversity in a Texas pine plantation. Forest Ecology and Management, 131, p. 65-80. Blasi S., Menta C., Balducci L., Conti F.D., Petrini E., Piovesan G., 2012. Soil microarthropod communities from Mediterranean fores ecosystems in Central Italy under different disturbances. Environmental Monitoring and Assessment, published online, DOI 10.1007/s10661-012-2657-2. Bongers T., Ferris H., 1999. Nematode community structure as a bioindicator in environmental monitoring. TREE, 14 (6), p. 224-228. Brussaard L., De Ruiter P.C., Brown G.G., 2007. Soil biodeversity dor agricultural sustainability. Agriculture, Ecosystems and Environment, 121, p. 233-244. Cassagne N., Bal-Serin M., Gers C., Gauquelin T., 2004. Long-term land-use effects on soil invertebrate communities in Southern Piedmont soils, USA. European Journal of Soil Biology, 42, p. 267-276. Cortet J., Gomot Vauflery A., Poinsot-Balaguer N., Comot L., Texier C., Gluzeau D., 1999. The use of invertebrate fauna in monitoring pollutant effects. European Journal of Soil Biology, 35, p. 115-134. Cortet J., Ronce D., Poinsot-Balaguer N., Baufreton A.C., Viaux P., de Fonseca J.P.C., 2001. Impacts of different agricultural practices on the biodeversity of microarthropod communites i arable crop systems. European Journal of Soil Biology, 38, p. 239-244. Ferraro D.O., Ghersa C.M., 2007. Explorin the natural and human-induced effects on the asseblage of soil microarhropod communities in Argentina. European Journal of Soil Biology, 43, p. 109-119. Gardi C., Tomaselli M., Parisi V., Petraglia A., Santini C., 2002. Soil qualityindicators and biodiversity in northern Italian permanent grasslands. European Journal of Soil Biology. 38, p. 103-110. Gardi C., Montanarella L., Arrouays D., Bispo A., Lemancheau P., Jolivet C., Mulder C., Ranjard L., Rombke J., Rutgers M., Menta C., 2009. Soil biodiversity monitoring in Europe: ongoing activities and challenges. European Journal of Soil Science, 60, p. 807-819. Gilley J.E., Doran J.W., Eghball B., 2001. Tillage and fallow effects on selected soil quality characteristics of former conservation reserve program sites. Journal of Soil Water Conservation, 56, p. 126-132. Hodkinson I.D., Jackson J.K., 2005. Terrestrial and aquatic invertebrates as bioindicators for environmental monitoring, with particular reference to mountain ecosystems. Environmental Management, 35, 649-666. Menta C., Leoni A., Bardini M., Gardi C., Gatti F., 2008. Nematode and microarthropod communities: use of soil quality bioindicators in covered dump and natural soils. Environmental Bioindicators, 3 (1), p. 35-46. Menta C., Leoni A., Gardi C., Conti F.D., 2011. Are grassland important habitats for soil microarthropod conservation? Biodiversity and Conservation, 20, p. 1073-1087. 77
Pankhurst C.E., 1997. Biodeversity of soil organisms as an indicator of soil health. In: Pankhurst C.E., Doube B.M., Gupta V.V.S.R. (Eds.), Biological Indicators of Soil Health. CAB International Publishing, Wallingford, Oxon (UK) and New York (USA), p. 297-324. Paoletti M.G., 1999. The role of earthworms for assessment of sustainability and as bioindicators. Agriculture, Ecosystems and Environment, 74, p. 137-155. Parisi V., 2001. La qualita biologica del suolo. Un metodo basato sui microatropodi. Acta Naturalia de “L’Ateneo Parmense”, 37 (3/4), p. 105-114. Parisi V., Menta C., Gardi C., Mozzanica E., 2005. Microarthropod commnities as a tool to assess soil quality and biodiversity: a new approach in Italy. Agriculture, Ecosystems and Environment, 105, p. 323-333. Parisi V., Menta C., 2008. Microarthropods of the soil: convergence phenomena and evaluation of soil quality using QBS-ar and QBC-c. Fresenius Environmental Bulletin, 17, p. 1170-1174. Phillipson J., 1971. Methods of Study in Quantitative Soil Ecology: Population, Production and Energy Flow, HBP Handbook No 18, Blackwell, Oxford. Ruf A., Beck L., Dreher P., Hund-Rinke K., Römke J., Spelda J., 2003. A biological classification concept for the assessment of soil quality: “biological classification scheme” (BBSK). Agriculture, Ecosystems and Environment, 98, p. 263-271. Van Straalen N.M., 2004. The use of soil invertebrates in ecological survey of contaminated soils. In: Doelman P., Eijsackers H. (Eds.), Vital soils. Elsiever, Amsterdam. 78
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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
Page 27 and 28: mijloc important de fertilizare ech
Page 29 and 30: collected on 13/09/2012 at the dept
Page 31 and 32: Table 3. The Influence of mineral f
Page 33 and 34: CONCLUSIONS The Hybrid rapeseedseed
Page 35 and 36: Scientific Papers. Series A. Agrono
Page 37 and 38: CONCLUSIONS The results have shown
Page 39 and 40: organic carbon was determined thoug
Page 41 and 42: THE INFLUENCE OF SOIL TILLING SYSTE
Page 43 and 44: emerging plant, we recommend using
Page 45 and 46: at the cellular level of Ni (Bou et
Page 47 and 48: concentrations in agricultural soil
Page 51 and 52: Surfaces at the bottom shows higher
Page 53 and 54: substantial balance that means maxi
Page 55 and 56: Table 4. Aggregate composition and
Page 59 and 60: 1. The initial parameters of ordina
Page 61 and 62: Table 8. Modification of the featur
Page 63 and 64: Abstract Scientific Papers. Series
Page 65 and 66: the linear correlation coefficient
Page 67 and 68: CONCLUSIONS For soil polluted with
Page 69 and 70: 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: influenced by heavy metals contamin
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 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 and 122: improper drainage and irrigation (G
Page 123 and 124: Figure 4. Scores plot of the soil s
Page 125 and 126: Table 1. Cluster analysis of the st
Page 127 and 128: DIFFERENTIATION OF FERTILIZATION RA
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Figure 2. Situation and location of
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Statistical data processing For the
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Phosphorus and potassium fertilizer
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30 m. Regarding the formation and d
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considerably less. These facts are
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Table 2. Hydraulic dimensioning Par
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SPATIAL VARIATION OF PHYSICAL CLAY
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Figure 2. Situation and location of
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esistant to high clay content in th
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CONCLUSIONS Described regularities
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ecome widespread and in order to ea
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Table 3. Results of the analysis of
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COMPARISON OF SYSTEMS FOR TAXONOMY
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RESULTS AND DISCUSSIONS Soil types
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underdeveloped cinnamon forest soil
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Figure 8. Content of skeletal fract
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MODEL FOR INVESTIGATION, AMELIORATI
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RESULTS AND DISCUSSIONS Characteris
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terrain is in the composition of a
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Such characteristics require the ne
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Abstract Scientific Papers. Series
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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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Scientific Papers. Series A. Agrono
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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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