Madras Agricultural Journal
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Genotype x Environment Interaction in Glycine max (L.) Merrill Varietal Tests

Abstract

Studies of 31 soybean cultivars grown at two locations under six bimonthly sowings revealed genotype x location interaction relatively large for plant height, number of nodes, pods and seeds and seed yield and highly significant for all the traits evaluated except for days to 50% flowering. Genotype x season interaction showed significance only for days to first flowering, 50% flowering and maturity and plant height. A theoretical total variance of genotype means computed for seed yield indicated the im- portance of location effects in testing soybean cultivars.

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