GGE Biplot Analysis of Multi-Environment Yield Trials in Barley (Hordeum vulgare L.) Cultivars

Authors : Enver Kendal

Pages : 90-99

View : 27 | Download : 14

Publication Date : 2016-01-01

Article Type : Research Paper

Abstract :IdentiŞcation of the genetic stability and adaptation of released varieties are very important for breeding programs. Genotype x Environment Interaction insert ignore into journalissuearticles values(GEI); is extensively observed by breeders as differential ranking of variety yields among environments or years. Therefore, four spring barley varieties, registered in different years, were evaluated at eight environments in different years. The experiments were performed according to a complete randomized block design with four replications. Stability and genotypic superiority for yield was determined using ANOVA and GGE biplot analysis. Genotype x environment interaction was found to be highly signiŞcant insert ignore into journalissuearticles values(P < 0.01); for grain yield. The GGE biplot indicated that three mega-environment were occurred in terms of varieties. Kendal and Altikat, took place in same mega-environment, while Samyeli in the second, Sahin 91 in third. On the other hand, Kendal and Altikat showed general adaptability insert ignore into journalissuearticles values(E1, E2, E5, E7 and E8);, while Samyeli and Sahin 91 exhibited speciŞc adaptation to E4 and E3 respectively. Considering both techniques, Samyeli and Sahin 91 came forward with low yielding, while Kendal and Altikat with high yielding and stability. Results indicated that GGE biplot is illuminant methods to discover stability and adaptation pattern of varieties in practical recommendations
Keywords : spring barley, genotype x environment interaction, GGE biplot, grain yield, stability