Integration of statistical and physiological analyses of adaptation of near-isogenic barley lines

✍ Scribed by I. Romagosa; P. N. Fox; L. F. García del Moral; J. M. Ramos; B. García del Moral; F. Roca de Togores; J. L. Molina-Cano

• Book ID: 104667181
• Publisher: Springer
• Year: 1993
• Tongue: English
• Weight: 460 KB
• Volume: 86
• Category: Article
• ISSN: 0040-5752
• DOI: 10.1007/bf00212607

✦ Synopsis

Seven near-isogenic barley lines, differing for three independent mutant genes, were grown in 15 environments in Spain. Genotype x environment interaction (G x E) for grain yield was examined with the Additive Main Effects and Multiplicative interaction (AMMI) model. The results of this statistical analysis of multilocation yield-data were compared with a morpho-physiological characterization of the lines at two sites (Molina-Cano et al. 1990). The first two principal component axes from the AMMI analysis were strongly associated with the morpho-physiological characters. The independent but parallel discrimination among genotypes reflects genetic differences and highlights the power of the AMMI analysis as a tool to investigate G x E. Characters which appear to be positively associated with yield in the germplasm under study could be identified for some environments.