Assessment of Phenological and Physiological Traits in Wheat under Normal and Delayed Sowing Conditions

Abstract

In the context of climate change, it is critical to understand how bread wheat reacts to changing weather patterns. A field experiment using a randomized complete block design with 50 genotypes was carried out over several growing seasons. The study looked at physiological factors like photosynthetic rates, leaf area index, and chlorophyll concentration in addition to important phenological stages like emergence, flowering, and maturity. The findings showed that there were notable differences between normal and late sowing conditions in terms of phenological development and physiological reactions. Under both normal and drought stress circumstances, the five genotypes G19, G31, G44, G10, and G3 fared well, while the genotypes G48, G26, G28, G43, and G42 did poorly. A significant positive correlation between grain yield and thousand-grain rate, and number of grains per spike was found using correlation analysis.