International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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Original Research Articles                      Volume : 7, Issue:10, October, 2018

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : /
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2018.7(10): 2232-2237

Screening of Bradyrhizobial Isolates for Plant Growth Promoting Properties in vitro Conditions
R. Naveen Kumar and R. Subhash Reddy
Department of Agricultural Microbiology and Bioenergy; College of Agriculture, Professor Jaya Shankar Telangana State Agriculture University, Rajendranagar, Hyderabad - 500 030, Telangana, India
*Corresponding author

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.

Keywords: Soybean [Glycine max (L.) Merrill], Bradyrhizobia, Rhizobia

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How to cite this article:

Naveen Kumar, R. and Subhash Reddy, R. 2018. Screening of Bradyrhizobial Isolates for Plant Growth Promoting Properties in vitro Conditions.Int.J.Curr.Microbiol.App.Sci. 7(10): 2232-2237. doi:
Copyright: This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike license.