National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Plant growth promoting rhizo-bacteria (PGPR) affect plant growth by producing and releasing secondary metabolites (plant growth regulators/phytohormones/biologically active substances), facilitating the availability and uptake of certain nutrients from the root environment and inhibiting plant pathogenic organisms in the rhizosphere. At the same time, plants produce root exudates containing e.g. sugars, amino acids, organic acids, vitamins, enzymes and organic or inorganic ions. Those substances in turn influence the rhizosphere microflora and also the behaviour of PGPR. In this work, I examined the potential use of legume bacteria, rhizobia as PGPRs since it has been shown that rhizobia (legume bacteria) can function as PGPR in nitrogen fixing plants. The present investigation is carried out with the objective of isolating Bradyrhizobia from different areas of soybean growing fields of Adilabad district and treating these isolates with the nitrogen fixation responsive soybean variety, for selecting the best isolate. Fourteen Rhizobial isolates were obtained from different areas, purified and authenticated based on their morphological, cultural, biochemical characters and nodulation test. All the fourteen isolates showed checked for IAA, phosphate solubilizing activity, Siderophore production and HCN production. Among all isolates SBR-8 showed positive in all PGPR activities.
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