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ADDITIVE MAIN EFFECT AND MULTIPLICATIVE INTERACTION ANALYSIS OF YIELD STABILITY PERFORMANCE IN SUNFLOWER GENOTYPE GROWN IN IRAQI ENVIRONMENT | ||
| The Iraqi Journal of Agricultural Science | ||
| Article 1, Volume 45, Issue 8, 2014, Pages 932-939 | ||
| Author | ||
| F. A. Kadhem | ||
| Abstract | ||
| The additive main effect and multiplicative interaction (AMMI) analysis was performed to assess the yield stability of six sunflower genotypes across eight environments during the growing seasons of 2008 and 2009. Layout of the experiments was split plot in randomized complete block design with three replications. The analysis of variance of AMMI revealed that genotypes, environments and genotype x environment interaction effects were highly significant and accounted for 44.7, 28.4, and 26.9%, of the total treatment sum of square respectively. Results also showed that the first three interaction principle component axis (IPCA1, IPCA2 and IPCA3) captured 91.6% of the interaction sum of square. The genotype Shomos exhibit negligible interaction with environments and has high grain yield indicating its broad adaptation and stability across environments, therefore could be recommended for tested locations. AMMI also showed which genotypes were more adapted to each environment. | ||
| Keywords | ||
| AMMI; stability; G x E interaction | ||
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