Screening of bread wheat (Triticum aestivum L. em. Thell.) genotypes under heat stress environment

Abstract

Bread wheat (Triticum aestivum L. em. Thell.) alone accounts for about 34 per cent of the total food grain production and will continue to play a crucial role in the food security of the country. Breeding of heat stress tolerance forms an integral component of wheat breeding programmes at both national and international level. Thermo tolerance in wheat cultivars requires understanding of the physiological responses of wheat crop to heat stress, which will help in identifying traits, to be used as selection criteria. The present study was carried out to understand the effect on morphophysiological traits under high temperature conditions and identification of tolerant genotypes.