Abstract
Genotype x environment interactions for four characters, viz., days to flowering, days to maturity, plant height and grain yield of seven buckwheat genotypes in six varied hill environments were studied. Variations due to genotype, environment and genotype x environment interaction were highly significant for all the characters. Both linear and non-linear omponents were significant in genotype x environment interaction except for plant height where large portion of interaction was accounted by the linear regression on the environment index. The study revealed that the genotype Sangla B 1 was the most stable genotype for grain yield and ideally adapted to varied hill.
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