Title : Genetic variation and diverse wheat genotypes contribute to heat stress tolerance under field condition
Wheat (Triticum aestivum L.) is an essential crop, provides food for a substantial portion of the world's population. Concerns regarding the effects of heat stress on wheat production, however, are growing as a result of the increasingly unpredictable climate patterns. We conducted a field study to evaluate the endurance of various wheat genotypes to heat stress in order to address this problem. Our study's objective was to find and describe genotypes with improved tolerance to heat stress, which will aid in the sustainable farming of wheat. The study encompassed a range of wheat genotypes representing diverse genetic backgrounds and included modern cultivars as well as landraces. Heat stress was induced during the reproductive stage of wheat by subjecting the plants to elevated temperatures exceeding the threshold for optimal growth. These resilient genotypes exhibited specific adaptive traits, including efficient photosynthetic activity, lower levels of oxidative damage, and altered gene expression patterns associated with heat stress response. Identifying and harnessing the traits present in resilient landrace genotypes offer promising avenues to develop wheat cultivars capable of sustaining production under challenging heat stress conditions, ultimately contributing to global food security.