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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.
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here

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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 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2017.6(12): 461-473
DOI: https://doi.org/10.20546/ijcmas.2017.612.057


Plant Growth Promoting (PGP) Attributes of Stress Tolerant Rhizobial Isolates from Root Nodules of Pigeon Pea [Cajanus cajan (L.) Millspaugh] Growing in Haryana, India
Kuldeep Singh1*, Asha Rani1, Shahid Ahmad Padder2 and Rajesh Gera1
1Department of Microbiology, CCS Haryana Agricultural University, Hisar-125004, India
2Division of Plant Pathology, Division of Soil Science, SKUAST Kashmir Srinagar, India
*Corresponding author
Abstract:

A set of forty nine abiotic stress tolerant rhizobia of pigeon pea plant were isolated from four districts of Haryana, India to study plant growth promoting attributes. It was observed that Indole-3-acetic acid (IAA) production was low and varied from 0.16 μg ml-1 to 9.50 μg ml-1. However, only 35% rhizobial isolates were siderophore producer. Interesting results were obtained as 96% of rhizobial isolates form significant zone of P-solubilization on Pikovskaya’s medium and their P-solubilization index (P-SI) varied from 1.2 to 3.7. Among the forty nine rhizobial isolates, 49% of the isolates showed growth on 1-aminocyclopropane-1-carboxylate (ACC) supplemented plates while most of the isolates showed growth on ammonium sulphate plates. Rhizobium with the plant growth promoting (PGP) attributes have potential for increased tolerance to high salt, water potential, pH and temperature stresses, therefore could enhance production of food and forage legumes in semiarid and arid regions of the world.


Keywords: Rhizobium, Siderophore, P-solubilization, IAA production, Legumes.
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How to cite this article:

Kuldeep Singh, Asha Rani, Shahid Ahmad Padder and Rajesh Gera. 2017. Plant Growth Promoting (PGP) Attributes of Stress Tolerant Rhizobial Isolates from Root Nodules of Pigeon Pea [Cajanus cajan (L.) Millspaugh] Growing in Haryana, India.Int.J.Curr.Microbiol.App.Sci. 6(12): 461-473. doi: https://doi.org/10.20546/ijcmas.2017.612.057