Scientific Papers Series A. Agronomy

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Nagy E., Has, V., Has, I., Suciu A., Florian V., 2009. Ihe influence of Fusarium spp ear infection on production and mycotoxin content in maize. Annal NARDI, Fundulea 77, p.179-187. Oancea F., 2011. Conservation agriculture system based bioactive vegetative mulch consists of green crop. Scrisul Romanesc, Craiova, p. 67-87. Oancea F., Stefan Aurora Liliana, 2011. Culture medium for differentiation of Fusarium toxigenic fungi. Patent no. RO 123 355 / 5.10.2011 OSIM. Oancea F., Stefan Aurora Liliana, 2011. Culture medium for differentiation of aflatoxigenic and nonaflatoxigenic fungi. Patent no. RO 125071/ 28.10.2011 OSIM. Zaberca A., Borcean A., 2010. Results concerning the attack of the fungus Fusarium graminearum in Almajului depression. Res. J. Of Agric. Sci., 42, p. 112-124. http://www.boku.ac.at/iam/edu/791.313_VO_Mikrobiell er_Pflanzenschutz/09_04A_MPP Case_Studies.pdf. Microbial Plant Protection. market situation of microbial pesticides. http://www.koppert.com/diseases/overview/products/det ail/trianum-g-2/TRIANUM-GTrichoderma harzianum T-22. 411
MANAGEMENT OF BENEFICIAL MICROORGANISMS RESOURCES TO SUSTAINABLE AGRICULTURAL PRODUCTION Abstract Scientific Papers. Series A. Agronomy, Vol. LVI, 2013 ISSN 2285-5785; ISSN CD-ROM 2285-5793; ISSN Online 2285-5807; ISSN-L 2285-5785 Liliana Aurora STEFAN, Alexandru PAICA, Cristian Iulian ENE Research and Development Institute for Plant Protection, no. 8, Ion Ionescu de la Brad Blvd, District 1, 013813, Bucharest, Romania Corresponding author email: aurora.stefan@yahoo.com The sustainability and security of Romanian agricultural production is under threat from intensive production practices, global competition and climate change factors. Maintaining the sustainable production of land lies in striking a balance between socio-economic goals and responsible natural resource management. To rise to the challenge, an integrated approach making full use of all the major players involved – farmers, consumers, regulatory bodies and scientists – is necessary. Trichoderma pseudokoningii Td85 antagonistic fungus was isolated from wheat seeds, Baragan agricultural region. Td85 beneficial strain has the following properties: a wide spectrum of action towards pathogenic microbiological contaminants in cereal crops, due to complex activity expressed by antagonism and competition for food and space colonization. Td85 beneficial strain provide reducing development of primary inoculum that survive in the soil and on the plant debris, due to high capacity for colonization and degradation of plant substrates. Saccharomyces cerevisiae L30b yeast strain was isolated from grapes Chasselas D’ore variety, RDIPP Bucharest vineyard. Research of L30b beneficial yeast was sidelined on strawberry crop, focusing on biological control of Botrytis cinerea fungus. The efficacy of L30b formulations was assessed on Favette (early), Cardinal (middle) and Pandora (late ripening) variety, achieving a reduced disease incidence and severity of grey mould on fruit and providing high efficacy against the pathogen. Key words: sustainable production, beneficial fungi, Trichoderma pseudokoningii Td85, Saccharomyces cerevisae L30b. INTRODUCTION Microorganisms of the genus Trichoderma are some of the most common naturally occurring fungi. Most strains are beneficial and have ability to colonize plant roots easily, without damage them. Close relationship between plants and Trichoderma fungi, gives an excellent biocontrol agent qualities. These microbial biofungicide may compete for food and space with pathogenic fungi, may stimulate plant host defenses and increased positive effect for root system. In addition, antagonistic fungi have capacity to attack and parazitize agents of agricultural plant pest in certain environmental conditions (Sesan et al., 2012). Fungi of the genus Trichoderma ssp. possess innate resistance to to most agricultural chemicals, including fungicides, although individual strains of microorganisms differ in terms of their resistance to plant protection products (PPPs). Some strains of antagonistic fungi were selected or modified to achieve specific agricultural chemical resistance. Most 412 owners of strains of the genus Trichoderma ssp, hold extensive lists of their sensitivity or resistance to a wide range of crop protection products, for biological control agents of pest. In nature, some organisms favors the development of others, forming associations that allow coevolution in the agriculture system, while others are exclude each other by mechanisms of antagonism. Microorganisms with importance in biological control of of plant diseases have a complex action. Antagonism of biological control agents against pathogens is due to the action of secondary metabolites and to direct destruction by micoparazitism. Reducing Botrytis cinerea pathogens may be due to the mechanism that destroy microsclerotium or limit mycelium growth by antagonistic yeasts of Saccharomyces and Metschnikowia genus.
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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
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Figure 4. Copper content in soil Fi
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samples collected in northern of fa
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MATERIALS AND METHODS Study areas T
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influenced by heavy metals contamin
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Pankhurst C.E., 1997. Biodeversity
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horizons, color, texture, structure
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From a chemical reaction these soil
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- Organic matter by Tiurin; - pH (H
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RESULTS AND DISCUSSIONS Invertebrat
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of moisture in arable layers, incre
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experimentation. The increase of mo
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THE TRANSITION PERIOD TO THE MARKET
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Activity data Activity data comes f
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Figure 2. The decrease of cultivate
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of nitrous oxide. In: Revised 1996
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Laboratory results have been interp
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The air-mass interferes with the ov
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Under these conditions, Moldavian r
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decreased to near wilting coefficie
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CONCLUSIONS Severe drought that aff
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(temperature and soil moisture, air
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primary cultures analyzed, hybrids
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weeding crops during the growing se
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improper drainage and irrigation (G
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Figure 4. Scores plot of the soil s
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Table 1. Cluster analysis of the st
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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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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
Page 362 and 363: Table 5. Cytological characteristic
Page 364 and 365: Scientific Papers. Series A. Agrono
Page 366 and 367: We can see in the table that all li
Page 368 and 369: RESULTS AND DISCUSSIONS Mean compar
Page 372 and 373: Table 4. Statistical interpretation
Page 374 and 375: COMPARATIVE STUDY OF CONVENTIONAL A
Page 376 and 377: Improved sunflower hybrids for use
Page 378 and 379: differences in production to contro
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Page 382 and 383: Table 3. Evaluation of Genotypes fo
Page 384 and 385: Table 1. Characteristics of city sl
Page 388 and 389: Table 4. Amount of the rainfall dur
Page 390: ECOLOGICAL AGRICULTURE
Page 393 and 394: maize had a density of 5 plants/m 2
Page 395 and 396: CONCLUSIONS In terms of productivit
Page 397 and 398: amino acids, such as 4-hydroxyisole
Page 401 and 402: Table 5. Determining chlorophyll pi
Page 403 and 404: PROPOSALS ON TECHNOLOGY OF MOVING A
Page 405 and 406: These are the main technical charac
Page 407 and 408: FUNGAL BIODIVERSITY AND CLIMATE CHA
Page 409 and 410: Climate change effects and Dobrogea
Page 411: Figure 10. Pure culture of benefici
Page 415 and 416: microorganisms DSMZ Braunschweig -
Page 417 and 418: Protocol of research and reporting
Page 419 and 420: “HERBAL MEDNET” AN INNOVATIVE A
Page 421 and 422: Figure 2. Value of global herbal ma
Page 423 and 424: Abstract Scientific Papers. Series
Page 425 and 426: Figure 3. The Allelopathy effect on
Page 428: AGRICULTURAL ENGINEERING AND RENEWA
Page 431 and 432: Research was also aimed at observin
Page 433 and 434: Leaf production of dry matter per h
Page 435 and 436: cooking oil and jatropha oil (Vonsh
Page 437 and 438: machines, many different fat extrac
Page 439 and 440: Table 4. The nutrient content Conte
Page 441 and 442: Figure 21. Dunaliella salina sp. ch
Page 443 and 444: for the decline is the growing numb
Page 447 and 448: Tractor power seemed the obvious wa
Page 449 and 450: Figure 4 shows that in 17 post war
Page 451 and 452: their employability, help raise the
Page 454 and 455: . Scientific Papers. Series A. Agro
Page 456 and 457: through the sprinkler irrigation. A
Page 458 and 459: Figure 5. Overlapping sprinklers wi
Page 460 and 461: 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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