بررسی پایداری عملکرد دانه لاینهای امید بخش گندم دوروم با استفاده از ترکیب خصوصیات روشهای BLUP و AMMI.

Background and Objectives: The aim of this research was to select promising durum wheat lines in terms of stability and high grain yield by combining BLUP and AMMI methods and using REML/BLUP based on different indices. Materials and Methods: In this study, 20 durum wheat genotypes were compared in five research stations of Karaj, Kermanshah, Khorramabad, Dezful and Darab based on randomized complete blocks design in 3 replications and in two growing seasons (2019-2021). Results: The results showed that the genotype × environment interaction was significant for grain yield. Comparison of the predicted averages of grain yield by BLUP method and HMGV, PRGV and HMRPGV statistics showed that genotypes G10, G8, G18, G9 and G14 with the highest predicted average were superior compared to genotypes others. According to the third type biplot, G1, G8, G10, G18 and G19 genotypes with high yield and low WAASB value were among the superior genotypes. Based on the polygonal biplot, G19, G1 and G10 genotypes with the lowest line slope were more stable. Based on the heat map of WAASB/Y, genotypes G8, G19, G18, G4, G10 and G1 were introduced as superior genotypes. The comparison between stability statistics and BLUP-based indices showed that there is a high agreement between their results. Conclusion: In general, according to the results of BLUP based on methods and stability statistics, genotypes G8, G10, G18 and G19 were introduced as stable genotypes and can be candidates for new cultivar introduction. [ABSTRACT FROM AUTHOR]