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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 2019 - IJCMAS--ICV 2019: 96.39 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 2019: 96.39
Index Copernicus ICI Journals Master List 2019 - IJCMAS--ICV 2019: 96.39
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.2021.10(9): 411-418
DOI: https://doi.org/10.20546/ijcmas.2021.1009.048


In- vitro Efficacy of PGPR on the Management of Rhizoctonia solani (KUHN) Causing Sheath Blight of Rice
Soundarya*, P. Renganathan and A. Eswaran
Department of Plant Pathology, Faculty of Agriculture, Annamalai University,
Annamalai Nagar, Chidambaram, Tamil Nadu - 608 002, India
*Corresponding author
Abstract:

Besides, the inherent hazards, negative public perceptions about the adverse environmental pollution of chemical pesticides, an alternative control methods are needed. Bio-stimulants are eco-friendly alternative to chemical pesticides because of their minimal impact on human health and environment, while ensuring optimal increase of crop yield, quality and tolerance to biotic stress. The soil has an enormous untapped potential of microbes, showing antagonistic effects against soil borne plant pathogenic organisms. This work validates a procedure to select one of the best Plant Growth Promoting Rhizobacteria (PGPR) as potential active ingredients for controlling Sheath blight of rice, incited by Rhioctonia solani (Kuhn). It is one of the most important Necrotrophic fungal diseases of rice with approximately 58% yield reduction in test plots of susceptible cultivars. It was arduous to manage the disease, therefore by investigating the bio-control potential of Pseudomonas fluorescens for the successful management of R. solani causing sheath blight disease. The results showed that the bacterial antagonist P. fluorescens has exhibited strong inhibition against R. solani with 76.40 Per cent over control in dual culture technique. With regard to poisoned food technique the culture filtrates of P. fluorescens (Pf3) at 15 and 20 per cent conc. completely inhibited the mycelial growth of R. solani. In addition to the disease control, the isolate Pf3 recorded the maximum root and shoot length; with germination percentage (96.18) and vigour index (2429.50) thereby it promotes plant growth and seed germination.


Keywords: Antifungal activity, R. solani,fluorescens, Mycelial growth, Pathogenicity
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How to cite this article:

Soundarya, K., P. Renganathan and Eswaran, A. 2021. In- vitro Efficacy of PGPR on the Management of Rhizoctonia solani (KUHN) Causing Sheath Blight of RiceInt.J.Curr.Microbiol.App.Sci. 10(9): 411-418. doi: https://doi.org/10.20546/ijcmas.2021.1009.048