The use of an AMMI model and its parameters to analyse yield stability in multi-environment trials

• Published in: The Journal of agricultural science 2008-10, Vol.146 (5), p.571-581
• Main Authors: SABAGHNIA, N., SABAGHPOUR, S. H., DEHGHANI, H.
• Format: Article
• Language: English
• Subjects: additive main effect and multiplicative interaction models; Agricultural production; Agronomy; Agronomy. Soil science and plant productions; Biological and medical sciences; Crop improvement; crop yield; data analysis; environmental factors; Fundamental and applied biological sciences. Psychology; genetic variation; Genetically altered foods; Genetics and breeding of economic plants; Genotype & phenotype; genotype-environment interaction; Genotypes; germplasm evaluation; germplasm screening; Legumes; Lens culinaris; lentils; multienvironment trials; plant adaptation; plant breeding; plant genetic resources; Stability analysis; Statistics; Variance analysis
• ISSN: 0021-8596; 1469-5146
• DOI: 10.1017/S0021859608007831

Genotype by environment (G×E) interaction effects are of special interest for breeding programmes to identify adaptation targets and test locations. Their assessment by additive main effect and multiplicative interaction (AMMI) model analysis is currently defined for this situation. A combined analysis of two former parametric measures and seven AMMI stability statistics was undertaken to assess G×E interactions and stability analysis to identify stable genotypes of 11 lentil genotypes across 20 environments. G×E interaction introduces inconsistency in the relative rating of genotypes across environments and plays a key role in formulating strategies for crop improvement. The combined analysis of variance for environments (E), genotypes (G) and G×E interaction was highly significant (P