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International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2018, Volume : 6, Issue : 5
First page : (391) Last page : (395)
Article doi: : http://dx.doi.org/10.18782/2320-6977

Antagonistic Potential of Isolates of Trichoderma spp. and Pseudomonas fluorescens Against Rice Sheath Blight Pathogen Rhizoctonia solani In vitro

Chrianjeevi, N.*, Anil Kumar, P., Sarada Jayalakshmi, R., Hari Prasad, K. V. and T. N. V. K.V. Prasad

S. V. Agricultural College, Tirupati 517 502, A. P.
*Corresponding Author E-mail: bindubhargavi134@gmail.com
Received: 4.07.2018  |  Revised: 29.07.2018   |  Accepted: 6.08.2018  

 

 ABSTRACT

Seven isolates of Trichoderma spp. and eight isolates of Pseudomonas fluorescens were screened for their antagonistic potential in vitro against sheath blight pathogen Rhizoctonia solani using dual culture technique. Two of the seven Trichoderma isolates viz., ET-1 and RT-4 were found potentially antagonistic as per Bell’s scale with complete overgrowth on R. solani in vitro. Two of the eight P. fluorescens isolates tested in dual culture against R. solani, viz., PF-2 and PF-5 were found potentially antagonistic in vitro sustaining inhibitory effect for even 10 days after inoculation.

Key words: Trichoderma, Rhizoctonia, Pseudomonas, Antagonistic

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Chrianjeevi, N., Anil Kumar, P., Sarada Jayalakshmi, R., Hari Prasad, K. V. and Prasad, T. N. V. K.V., Antagonistic Potential of Isolates of Trichoderma spp. and Pseudomonas fluorescens Against Rice Sheath Blight Pathogen Rhizoctonia solani In vitro, Int. J. Pure App. Biosci.6(5): 391-395 (2018). doi: http://dx.doi.org/10.18782/2320-7051.6977