Cytogenetics Laboratory, Division of Plant Sciences, Meerut University Institute of Advanced Studies, Meerut, India
*Present address: J. V. College, Baraut (Meerut, India).
Genotype environment interaction in pearl millet (pennisetum typhoides L.) were studied for yelid by growing 34 genotypes in 8 environments. Genotype-environment interactions were present; a large portion of the interactions was accounted for by the linear regression on the environmental means. Although nonlinear component was also significant, its magnitude was considerably smaller than that of linear component. ‘Vijay’ composite, ‘T 55’, ‘AC 578’, ‘AC 588’, ‘AC 589’, ‘C-35’, ‘HC 10’, ‘HC 29’, ‘K 560,’ ‘Meerut Local’ were found to be most stable and thus their response to changes in environment could be predicted. ‘Vijay’ composite had not only shown linear response and high mean performance over all environments, but also showed better phenotypic stability. ‘T-55’ was found to be a stable variety suitable for poor environmental conditions. On the other hand, ‘AC 578’ was a stable variety suitable for rich environmental conditions and ‘AC 588’ for average conditions.
