Screening of bread wheat (Triticum aestivum L.) genotypes resistance to yellow rust along with grain yield

Abstract

Abstract Yellow rust caused by Puccinia striiformis f.sp tritici is one of the main diseases of wheat (Triticum aestivum L.) in the world, causing up to 50–100% of yield losses under favorable environmental conditions. Developing resistant cultivars is an efficient, economical, environmentally friendly and simple approach in combating wheat yellow rust. This study was carried out to evaluate spring bread wheat genotypes for their reaction to yellow rust under field conditions. Two hundred and forty spring bread wheat genotypes and seven check varieties were evaluated for their reaction to yellow rust disease under field conditions in non-replicated trials, using an augmented design. Collected data were analyzed using ANOVA. The genotypes were classified as resistant, moderately resistant, moderately susceptible and susceptible based on the percentage disease severity scored. Up to 90% disease severities were recorded from susceptible check kubsa and the other 23 genotypes. There was a significant difference of yellow rust severity, Coefficient of infections, AUDPC, yield and yield component values among genotypes, based on these parameters we identified 19 genotypes low disease severity and grain yield.