National Academy of Agricultural Sciences (NAAS)
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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 2018: 95.39 NAAS RATING 2020: 5.38 |
Rhizoctonia solani Kuhn (Teleomorph: Thanatephorus cucumeris) is a soil borne, polyphagous, necrotrophic plant pathogenic fungus with a wide host range. It is causing sheath blight disease on a wide range of Graminae plant hosts and causes considerable losses in yield. It incites banded sheath blight disease in small millets, with its characteristic copper brown band symptoms. Fifty three isolates of Rhizoctonia solani were obtained from four different small millets showing typical symptoms of the disease. Pathogenicity of all the isolates proved by agar and sheath inoculum method. Cross inoculation studies revealed that most of the isolates of R. solani were cross infective with each other and all the proso millet isolates were highly pathogenic on foxtail millet. Host range studies unveiled that majority of the isolates successfully infect rice, sorghum, soybean, bajra except groundnut but their virulences on different crops were quite different. It was observed that slow growing isolates of foxtail millet, finger millet and little millet were more aggressive than medium and fast growing isolates.
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