Impacts of heat shock on productivity and quality of Triticum aestivum L. at different growth stages

The transitional phase of climate change is becoming a threat worldwide. Fluctuations in temperature are frequently observed the life cycles field crops. current study was intended to evaluate heat stress (HS) at sensitive stages on four wheat cultivars’ growth, grain yield, and quality traits during two consecutive seasons. experiment included spring cultivars that were exposed HS durations (i.e., 0, 48, 96 144 h) booting anthesis stages. Pots kept an open-air, labeled pots moved glasshouse respective growth stage. After treatments, from original position open air. results showed differed yield traits, but their collective mean effect significantly expressed with duration (HSd) measured traits. Spike length affected by comparison those obtained control. However, increase HSd did not cause significant spike compared other treatments. weight decreased plants as well increasing HSd. In addition, numbers similar pattern Moreover, reduction amylose content grains or when longer period Nonetheless, amylopectin, wet gluten (WG) N (GN) and/or extending This concludes different treatments cycle had lower values for length, weight, number per including decrease noted stage anthesis.