Heat Stress Response of Bread Wheat Genotypes Under High and Low Rainfall Environments

Authors : Mehmet KARAMAN, Cuma AKINCI, Mehmet YILDIRIM

Pages : 64-74

Doi:10.29133/yyutbd.1195751

View : 15 | Download : 4

Publication Date : 2023-03-31

Article Type : Research Paper

Abstract :The research was carried out to determine the yield, yield components, quality, and stability of the bread wheat insert ignore into journalissuearticles values(Triticum aestivum L.); genotypes in heat-stressed and water-limited environments for two years. ANOVA and GGE biplot analysis were applied to determine the differences and relationships of investigated traits belonging to 10 different wheat varieties. While grain yield insert ignore into journalissuearticles values(GY); is associated with thousand-grain weight insert ignore into journalissuearticles values(TGW); and test weight insert ignore into journalissuearticles values(TW);; protein ratio insert ignore into journalissuearticles values(PR); was found to be positively correlated with heading time insert ignore into journalissuearticles values(HT); and the number of spikes per square meter insert ignore into journalissuearticles values(SN);. Besides, spike weight insert ignore into journalissuearticles values(SW); was found to be negatively correlated with PR, HT, and insert ignore into journalissuearticles values(SN);. The biplot graph showed that PC1 explained 83.67% of the variability and the proportion attributed to PC2 was 16.33%. The cultivar of Kate A-1 was the most stable genotype, according to the biplot graph and it could be visually determined from the biplot graph in PC1 and PC2 together to explain 100% of the variability. In terms of the quality characteristics examined, Tahirova 2000 passed other varieties. It was concluded that Kate A-1 and Anapo varieties can be used for grain yield-oriented breeding studies, while Tahirova 2000 and Karatopak varieties can be used as parents for quality purposes.
Keywords : Heat and drought stress, bread wheat, GGE biplot, grain yield, stability