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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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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 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.2018.7(11): 3337-3374
DOI: https://doi.org/10.20546/ijcmas.2018.711.385


Study of Exopolysaccharide Containing PGPRs on Growth of Okra Plant under Water Stress Conditions
Shyam Nath Yadav2, Ajay Kumar Singh1*, Jyotsna Kiran Peter2, Harison Masih2, Jane C. Benjamin2, Deepak Kumar Singh2, Siddhant Chaudhary2, P.W. Ramteke3 and Surendra Kumar Ojha4
1Department of Food Process Engineering
2Department of Industrial Microbiology
3Department of Biological Sciences, Sam Higginbottom University of Agriculture Technology & Sciences, Allahabad, India
4Agriculture Microbiology, SHIATS, Allahabad, Uttar Pradesh, India
*Corresponding author
Abstract:

Both biotic and abiotic stresses are major constrains to agricultural production. Under stress conditions, plant growth is affected by a number of factors such as hormonal and nutritional imbalance, ion toxicity, physiological disorders, susceptibility to diseases, etc. Plant growth under stress conditions may be enhanced by the application of microbial inoculation including plant growth promoting rhizobacteria (PGPR). These microbes can promote plant growth by regulating nutritional and hormonal balance, producing plant growth regulators, solubilizing nutrients and inducing resistance against plant pathogens. The present study had the objectives, screening the exopolysaccharide (EPS) producing bacteria from PGPR isolates and evaluating the effect of exopolysaccharide (EPS) producing bacteria on growth of Okra plants. Seven bacterial strains were collected from culture bank and tested for their drought tolerance, PGPR traits and EPS production. Out of seven cultures Pseudomonas aeruginosa and Bacillus coagulans were found to be best. Okra seeds were treated with different combination of EPS producing bacteria and shown in field. Maximum seed germination was observed in T7 (79.15%). Maximum plant height at each time interval was attained in treatment T7 (6cm, 13.5cm, 15.8cm, 18.43cm and 22.93cm respectively). Maximum Number of leaves per plant at each time interval was attained in treatment T7 (4.33, 6.33, 8.33, 10.33 and 10.66 respectively). Maximum leaf area graphically was observed in treatment T7 (181.89 cm2). Maximum root length was observed in treatment T7 (16.56 cm). Maximum fresh weight and dry weight of root per plant was observed in treatment T7 (7.83gm, 1.65gm respectively). Maximum fresh and dry weight of leaf per plant was observed in treatment T7 (4.70gm, 0.86gm respectively).


Keywords: Exopolysaccharide, PGPR, Okra, Bacillus coagulans, Pseudomonas aeruginosa
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How to cite this article:

Shyam Nath Yadav, Ajay Kumar Singh, Jyotsna Kiran Peter, Harison Masih, Jane C. Benjamin, Deepak Kumar Singh, Siddhant Chaudhary, P.W. Ramteke and Surendra Kumar Ojha. 2018. Study of Exopolysaccharide Containing PGPRs on Growth of Okra Plant under Water Stress Conditions.Int.J.Curr.Microbiol.App.Sci. 7(11): 3337-3374. doi: https://doi.org/10.20546/ijcmas.2018.711.385