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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 2015 - IJCMAS--ICV 2015: 85.95 For more details click here
National Academy of Agricultural Sciences (NAAS) : NAAS Score: *5.38 (2017) [Effective from January 1, 2017]For more details click here
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2017)
[Effective from January 1, 2017]
For more details click here

ICV 2015: 85.95
Index Copernicus ICI Journals Master List 2015 - IJCMAS--ICV 2015: 85.95
For more details click here
journals IJCMAS
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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 2015: 85.95
NAAS RATING 2017: 5.38

Int.J.Curr.Microbiol.App.Sci.2017.6(3): 1789-1802
DOI: https://doi.org/10.20546/ijcmas.2017.603.205


PGPR Isolates from the Rhizosphere of Vegetable Crop Momordica charantia: Characterization and Application as Biofertilizer
Ritu Singh*, Kapil D. Pandey, Ajay Kumar and Monika Singh
Centre of Advance Study in Botany, Banaras Hindu University, Varanasi- 221 005, India
*Corresponding author
Abstract:

Plant growth promoting Rhizobacteria (PGPR) enhance the plant growth and productivity through wide variety of mechanism. The strains isolated from rhizosphere of Momordica charantia, mainly belonged to Bacillus, Azotobacter, Pseudomonas and Acinetobacter. Nearly 50% isolates of Pseudomonas and Acinetobacter and all the isolates of Bacillus and Azotobacter were able to solubilise tricalcium phosphate. All the isolates were positive for Catalase activity and IAA production except Acinetobacter with 75% isolates were IAA producing. Pseudomonas (100%), Bacillus (80%), Acinetobacter (75%) and Azotobacter (40%) produced ammonia and all the isolates were siderophore producing except Azotobacter. The Bacillus (75%) and Pseudomonas (50%) also produce HCN. Best performers in above plant growth promotion (PGP) traits, isolate of Bacillus (R7), Azotobacter (RS7), Pseudomonas (RS1) and Acinetobacter (R12) evaluated for their effect on plant vigour. The antibacterial activity and plant growth promotion in Pseudomonas (RS1), salt tolerance in Bacillus (R7), and nitrogenase activity (C2H2-reduction) in Azotobacter (RS7) was highest. Pseudomonas (RS1) was most efficient PGPR and Bacillus (R7) most dominant in rhizosphere of bitter melon. Nitrogenase (C2H2- reduction), phosphate solubilisation and growth promotion activities in Bacillus (R7), Azotobacter (RS7) and Pseudomonas (RS1) suggested that these isolates may be used as a biofertilizer for bitter melon.


Keywords: Bitter melon, plant growth promoting rhizobacteria (PGPR), PGP traits, biofertilizer.
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How to cite this article:

Ritu Singh, Ajay Kumar, Monika Singh and Kapil D. Pandey. 2017. PGPR Isolates from the Rhizosphere of Vegetable Crop Momordica charantia: Characterization and Application as BiofertilizerInt.J.Curr.Microbiol.App.Sci. 6(3): 1789-1802. doi: https://doi.org/10.20546/ijcmas.2017.603.205