Screening of inbred lines and hybrids against maydis leaf blight (Bipolaris maydis. Nisikado) Shoemaker in maize

Abstract

A field experiment was conducted to screen the inbred lines and hybrids against maydis leaf blight of maize at Main Agriculture Research Station, University of Agriculture Sciences, Dharwad to find out the resistant sources against maydis leaf blight of maize caused by Bipolaris maydis Shoemaker. Totally 34 inbred lines and 26 hybrids were screened against maydis leaf blight, Among the 34 inbred lines, only two lines, viz., BM-55 and BM-148, registered highly resistant reaction, five lines were identified as resistant, ten lines were found moderately resistant and remaining were susceptible. Out of 26 hybrids screened, no hybrid was immune and highly resistant, nine hybrids registered resistant reaction, eight hybrids were rated as moderately resistant, whereas rest of the hybrids were susceptible.