Abstract

A set of fifteen geno types of dry and semi-dry paddy were evaluated for stability of performance for yield and four yield components in four different environments. Stress con- ditions of moisture especially in the rainfed crops reduced the mean values, the maximum reduction being observed in productive tillers followed by plant height, grain yield, days to flowering and grains per panicle. The dry and semi-dry paddy were, in general, characteri- sed by low tillering potential. The geno type-environment interaction was significant and both the linear and non-linear components were equally important. Both TKM 9 and Poo- ngar were the high yielding genotypes with wider adaptability and high stability in addition to being specifically suitable to unfavourable environments. Kuruvaikalangiam was the best performer for all characters excepting grains per panicle for which PM 1023 was the bast performer.

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