Physiological assessment of drought and heat resistance of two seasonal soft wheat varieties in the conditions of Uzbekistan

The article presents the results of the evaluation of varieties two seasonal soft wheat according to the parameters of drought and heat resistance. During the research, 25 varieties two seasonal soft wheat were studied. These varieties and lines were assessed for resistance first by the degree of seed germination in osmotic solutions. As a result of research on high drought tolerance, samples KR19-19thDSBWYT-29782 and KR20-20thDSBWYT-12 were selected. The study, as well as plant leaves, assessed the drought and heat resistance of samples during the period earing. Based on these data, KR19-19thDSBWYT-29782, KR19-19thDSBWYT-29782 and KR20-20thDSBWYT-30 samples with high drought resistance were selected. Also, KR19-19thDSBWYT-29782 (Barkaror), KR20-20thDSBWYT-30, KR20-20thHTSBWYT-35(67), KR20-20thDSBWYT-41, KR20-20thHTSBWYT-45 samples with high heat resistance were selected.