Screening of elite rice genotypes for brown plant hopper (Nilaparvata lugens Stal)

Abstract

Ninety-four popular elite rice varieties for different ecologies of different states were evaluated for BPH in net house condition. Out of these, eleven varieties are moderately resistant to BPH having score 3. The resistant varieties are Balum-2, Megharice -3, Imp sabaramati, GR-7, Karjat-3, MTU 1061, MTU 1075, RTN-3, R-Suwasini, Pravat, Santepal. Twenty-four varieties are moderately susceptible having score 5, thirty-two varieties are susceptible having score 7 and twenty-seven varieties are highly susceptible to BPH having score 9.