The Influence of Flag Leaf Removal and Its Characteristics on Main Yield Components and Yield Quality Indices on Wheat

The flag leaf can be an important vehicle for high grain yield due to its position and photosynthetic characteristics. To identify the most adaptive stable yielding genotype, three winter wheat genotypes were studied during two experimental years under field conditions quantify influence of removal in different phenological stages on quality. main components, was removed every 7 days, starting from booting stage ripening. Chlorophyll a, chlorophyll b, carotenoids determined leaves. As a complex trait, number grains/spikes weight highly influenced by early generative stages, causing loss 9% more than 40%, depending variety. It established that pigments plant phenology environmental conditions, especially carotenoids, which act as photoprotective antioxidant agents stress conditions. Regarding quality, had significant accumulation protein wet gluten content, variability these quantitative traits being also climatic