International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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Original Research Articles                      Volume : 9, Issue:9, September, 2020

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.2020.9(9): 2145-2152

Plant Growth Promoting Potential and Biocontrol Efficiency of Phosphate Solubilizing Bacteria in Rice (Oryza sativa L.)
Pratibha Rawat, Deepti Shankhdhar and S. C. Shankhdhar*
Department of Plant Physiology, College of Basic Sciences & Humanities, G. B. Pant University of Agriculture & Technology, Pantnagar, Uttarakhand, India
*Corresponding author

To study the impact of phosphate solubilizing bacteria (PSB) and phosphorus fertilizer rates on growth parameters and pest infestation in rice, a field experiment for two successive years (2018 and 2019) was laid out in split- plot design with nine treatments viz. uninoculated control with different phosphate fertilizer doses viz., 0%, 50%, 75%, and 100% recommended dose (T1), PSB1 (T2), PSB2 (T3) PSB3 (T4), PSB1 + PSB2 (T5), PSB1 + PSB3 (T6), PSB2 + PSB3 (T7), PSB1 + PSB2 + PSB3 (T8), and Standard PSB (T9). The results significantly validated positive correlation between PSB inoculation and the growth attributes such as stem weight, leaf weight, and productive tiller number per hill at flowering. Growth parameters enhanced significantly when treated with PSB and 50% fertilizer dose. Percentage of stem borer and leaf folder infestation in PSB treated plants blended with 50% phosphate fertilization reduced significantly compared to control plants for both the cropping years. It can be concluded from our study that optimum dose of phosphate fertilizer (50% recommended dose) in combination with PSB could be an effective strategy to promote rice growth and development in an ecofriendly and sustainable manner.

Keywords: Phosphorus, Phosphate solubilizing bacteria, Biocontrol, Growth

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How to cite this article:

Pratibha Rawat, Deepti Shankhdhar and Shankhdhar, S. C. 2020. Plant Growth Promoting Potential and Biocontrol Efficiency of Phosphate Solubilizing Bacteria in Rice (Oryza sativa L.).Int.J.Curr.Microbiol.App.Sci. 9(9): 2145-2152. doi:
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