Environmental and genetic variation in some economically important traits in potatoes

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Abstract
Summary: Five potato varieties were grown at four sites over 2 years, and assessed for yield, specific gravity and for sloughing, texture and discoloration following steaming. Variation in discoloration was attributed to differences between sites. Genetic differences were established for specific gravity, sloughing and texture, all of which were positively correlated. Genotype × environment interactions and years × sites interactions contributed to the variation for these and the remaining variables.