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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39 For more details click here
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39
For more details click here

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Original Research Articles

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

Int.J.Curr.Microbiol.App.Sci.2017.6(7): 616-625
DOI: https://doi.org/10.20546/ijcmas.2017.607.075


Screening of Native Rhizobia and Pseudomonas Strains for Plant Growth Promoting Activities
G. Thirumal*, R. Subhash Reddy, S. Triveni, Y. Nagaraju and B. Prasannakumar
Department of Agricultural Microbiology and Bioenergy, College of Agriculture, Professor Jaya Shankar Telangana State Agricultural University, Rajendranagar, Hyderabad - 500 030, Telangana, India
*Corresponding author
Abstract:

Plant growth-promoting rhizobacteria (PGPR) are naturally occurring soil bacteria that aggressively colonize plant roots and benefit plants by providing growth promotion. Inoculation of crop plants with certain strains of PGPR at an early stage of development improves biomass production through direct effects on root and shoots growth. During the past couple of decades, plant growth-promoting rhizobacteria (PGPR) will begin to replace the use of chemicals in agriculture, horticulture, sylvicultural, and environmental cleanup strategies. In this present study, different Rhizobial and Pseudomonas strains from different locations were collected and evaluated for their potential PGP activity. Among ten Rhizobial cultures GNR1 recorded the highest P solubilization zone (24.3 mm) conversely, P solubilization is highest in Pseudomonas isolates. Five cultures of Rhizobia and six cultures of Pseudomonas were able to solubilize potassium. The solubilisation zone is ranging from a maximum of 11.6 to a minimum of 8.3 mm. All the ten Rhizobial cultures and five Pseudomonas cultures were able to release of zinc from insoluble forms of zinc. All the Rhizobial and Pseudomonas isolates were positive for IAA production.


Keywords: Rhizobium, Pseudomonas, Potassium, Zinc, IAA.
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How to cite this article:

Thirumal, G., R. Subhash Reddy, S. Triveni, Y. Nagaraju and Prasannakumar, B. 2017. Screening of Native Rhizobia and Pseudomonas Strains for Plant Growth Promoting Activities.Int.J.Curr.Microbiol.App.Sci. 6(7): 616-625. doi: https://doi.org/10.20546/ijcmas.2017.607.075