Screening of genotypes against false smut of rice in Hill Zone of Karnataka

Abstract

Rice (Oryza sativa L.) is the principal staple food for more than two billion people; most of them live in rural and urban areas of tropical and subtropical Asia. The experiment was conducted during Kharif 2017-18 at AHRS, Ponnampet. To identify the resistant sources against the any disease in order to breed resistant varieties is of primary importance. Hence, in the present study 102 genotypes were screened against false smut disease of rice under natural epiphytotic condition at AHRS, Ponnampet. Among 102 genotypes/varieties screened, 11 genotypes/varieties viz., (IET 24956, IET 25530, IET 26273, IET 26218, IET 26275, IET 25798, IET 24995, IET 25523, Varshadhan, IET 27274 and IET 27277) were showed highly resistant reaction, none of them were showed resistant reaction, only one variety of IR-64 showed moderately resistant reaction, 53 genotypes were found moderately susceptible reaction and 34genotypes/varieties were showed susceptible reaction. However only three genotypes/varieties, i.e., IET 26219, IET 24518 and IET 25191 showed highly susceptible reaction to false smut disease.