Summary
Genotype by environment interaction was investigated for yield data from the official Dutch Variety List trials for potato. The data set included 64 genotypes by 26 environments, where environments consisted of year by soil type combinations. Factorial regression models incorporating genotypic and environmental covariates in the interaction were used to analyse the data. The merits of factorial regression models were compared with those of biadditive models. Factorial regression models and biadditive models described comparable amounts of interaction, but factorial regression models provided a better basis for biological interpreration of the interaction.
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This article was previously published in Euphytica 82: 149–155.
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Baril, C.P., Denis, J.B., Wustman, R. et al. Analysing genotype by environment interaction in Dutch potato variety trials using factorial regression. Euphytica 84, 23–29 (1995). https://doi.org/10.1007/BF01677553
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DOI: https://doi.org/10.1007/BF01677553