International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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Original Research Articles                      Volume : 7, Issue:7, July, 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(7): 4167-4173

Screening of PGPR from the Rhizosphere of Groundnut (Arachis hypogea): Characterization and Application
R. Nigar Sulthana*, A. Rajanikanth and M. Padamavathi
Department of Biotechnology, SPW Degree & PG College, Tirupati, A.P, India
*Corresponding author

Rhizosphere of a groundnut plant (Arachis hypogea) from agricultural fields of Chittoor district of Andhra Pradesh (India) was explored for isolation of PGPR. A total of 6 isolates from the rhizosphere belonging to different species were isolated. All the isolates showed phosphate solubilization, out of these an isolate coded as Psm6 showed most prominent halo zone was tested in vivo for growth promotion of Groundnut (Arachis hypogaea) under field conditions. Root and Shoot length, Dry and Wet weights were found to be excellent in Psm6 treatment compare to control. Psm6 treated plants showed increase in fresh biomass, dry biomass, root length and shoot length by 19%, 11%, 10% and 12% respectively. Physicochemical properties of soil revealed that soil was slightly alkaline; Nitrogen and phosphorous contents were low in the soil. After treatment with PGPR they showed slight increase and excellent growth of Groundnut under field condition.

Keywords: Arachis hypogea, Plant growth promoting rhizobacteria (PGPR), PVK broth, Physico chemical analysis, Phosphate solubilization

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How to cite this article:

Nigar Sulthana, R., A. Rajanikanth and Padamavathi, M. 2018. Screening of PGPR from the Rhizosphere of Groundnut (Arachis hypogea): Characterization and Application.Int.J.Curr.Microbiol.App.Sci. 7(7): 4167-4173. doi:
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