Study of grain yield stability and compatibility in durum wheat genotypes using AMMI method
Subject Areas : Agroecology Journalhajar badri 1 , reza mohamadi 2 , alireza etminan 3
1 - Student
2 - Assistant Professor
3 - Assistant Professor
Keywords: Stability, Genetic Diversity, Compatibility, Durum wheat, Grain yield,
Abstract :
In order to stability of grain yield, compatibility of 16 genotypes of durum wheat in two rainfed conditions and supplemental irrigation was performed in a randomized complete block design with three replications during three years (2011-2013). Data from grain yield were analyzed by AMMI statistical method. The results of analysis of variance of grain yield showed that there was a significant difference between genotype incremental main effects, environment and interaction effect of genotype in environment at 1% probability level. The magnitude of the interaction of genotype in the environment was about twice as high as the genotype effect, indicating the probable existence of different environmental groups for the genotypes studied. Graphical analysis of bi-plot performance data based on AMMI methods showed that genotypes had a different reaction to the environments studied, so that the environments were determined in three peripheral groups and compatible genotypes for each peripheral group. Performance evaluation based on AMMI, Eberhart and Russell stability statistics and nonparametric statistics showed that genotype G13 was the most stable and genotypes G3 and G2 were the most unstable genotypes.
