Crop diagnosis and probe genotypes for interpreting genotype environment interaction in winter wheat trials

摘要: Genotype*environment interaction has been analyzed with 12 genotypes and four probe in French wheat trials. An integrated approach was developed which combined crop diagnosis the analysis of by factorial regression. Crop helpful to characterize environments select environmental variables. Such an succeeded providing agronomic explanation genotype*environment defining responses or parameters for each genotype environment. Earliness at heading, susceptibility powdery mildew lodging were three major genotypic covariates. Interaction could also be related environment features, measured indirectly behavior during formation yield, what we called outputs a simplified diagnosis, described directly indicators yield-limiting factors. Two important covariates order yield: reduction kernel number, time-period until flowering, thousand weight, corresponded period after flowering. These variates estimated allowed us compare that genotypes. Both periods yield contributed interaction, ’Camp-Remy’ particular interest comparisons. When true used, regression revealed water deficits grain number level nitrogen predominant. exploited when varieties are tested network where numerous diverse factors may occur.