Grain yield stability analysis of soybean genotypes by AMMI method
The additive main effects and multiplicative interaction (AMMI) model was used to analysis the grain yield stability of 20 soybean genotypes in four locations (Karaj, Gorgan, Moghan and ShahreKord) of Iran. Experiments were carried out based on randomized complete block design (RCBD), with three replications in 2014-2015. Result revealed that the grain yield was significantly influenced by environments (E), genotypes (G) and G × E interactions. Principal component analysis (PCA) declared three components which explained up to 90% of G x E sum square (IPCA1, IPCA2 and IPCA3 with 70.72%, 18.99% and 10.60%, respectively). AMMI multivariate method identified two genotypes (No.13 and No.8) with grain yield of 2789 and 2702 kg.ha-1 respectively, which were stable genotypes in different environments. The study concluded that the AMMI model is a practical and effective alternative for crop breeders to screen stability of soybean genotypes for different environments.
Article Type:
Research/Original Article
Azarian Journal of Agriculture, Volume:3 Issue:6, 2016
119 - 128  
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