Abstract
An experiment was laid out with six wheat genotypes K-9162, K910-30, DBW-16, AAI-16, K-911, and NW-1014. This study was conducted during winter season 2020-2021 at the Student Instructional Farm and in the laboratory of Plant Molecular Biology and Genetic Engineering at Acharya Narendra Deva University of Agriculture & Technology, Kumarganj, Ayodhya –224 229 (U.P.) in Randomized Block Design (R.B.D.) The wheat genotypes were exposed to heat stress by delayed sowing of 60 days from the normal date of sowing (15 January 2021) so that reproductive stage of wheat can experience heat stress. The field preparation and normal agronomic practices were followed as per need of the crop. The wheat genotypes K-9162, K910-30 and K-911 showed less reduction in yield and yield components over the DBW-16, AAI-16 and NW-1014 wheat genotypes. Therefore, on the basis of less reduction in yield and yield components under heat stress, K-910-30, K-911 and K-9162 were showed the significant tolerant while the other genotypes like DBW-16, NW-1014 and AAI-16 were found high yielding under normal condition but also showed high reduction in yield under heat stress condition.
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