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ORYZA- An International Journal on Rice
Year : 2014, Volume : 51, Issue : 1
First page : ( 100) Last page : ( 102)
Print ISSN : 0474-7615. Online ISSN : 2249-5266.

Studies on the host range of Rhizoctonia solani Kuhn causing sheath blight disease in rice

Lenka S1,*, Pun KB1, Saha S2, Rath NC2

1Regional Rainfed Lowland Rice Research Station, Gerua, Dist. Kamrup (Assam)

2Central Rice Research Institute, Cuttack - 753 006 (Odisha)

*Email: srikantalenka@yahoo.in

Online published on 24 December, 2014.

Abstract

Host range of sheath blight disease in rice caused by Rhizoctonia solani Kuhn was studied in different nonpaddy hosts viz. maize, wheat, jowar, bajra, ragi, sugarcane and weed hosts namely Digitaria ciliaris, Dactyloctenium aegyptium, Eclipta alba, Euphorbia hirta, Scoparia dulcis, Echinochloa colonum, Aegeratum conyzoides, Cyperus rotundus, Paspalum scrobiculatum, Cynodon dactylon and Commelina benghalensis, which served as collateral hosts for the survival of the pathogen. Production of the highest lesion length was recorded in the weed host Dactyloctenium aegyptium while the lowest lesion length was observed in Euphorbia hirta.

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Keywords

Rice, sheath blight, non-paddy host, weed.

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