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Studies on Genetic Variability for Yield, Yield Components and Resistance to Kalahasti Malady in Groundnut (Arachis Hypogaea L.)..
Article in English | IMSEAR | ID: sea-168383
ABSTRACT
Twenty one crosses of groundnut derived from 7×7 diallel set without reciprocals were evaluated during rabi 2010-11 for variability, heritability and genetic advance. Analysis of variance for thirteen traits revealed highly significant differences among the F2 populations tested. The estimates of GCV and PCV were high for number of secondary branches per plant, kernel yield per Plant (g), total phenols content (mg/g), pod yield per plant (g), number of kernels per plant and harvest index. High heritability coupled with high genetic advance as percent of mean for traits viz., days to 50% flowering, total phenols, number of secondary branches per plant, harvest index, kernel yield per plant and number of kernels per plant indicate that these are predominantly influenced by additive gene action and the possibility of phenotypic selection in early generations. High heritability coupled with moderate genetic advance as percent of mean for number of primary branches per plant and moderate heritability coupled with moderate genetic advance as per cent of mean for 100-kernel weight indicate the role of both additive and non additive gene action with preponderance of additive genetic variance and selection would be effective to some extent.

Full text: Available Index: IMSEAR (South-East Asia) Language: English Year: 2015 Type: Article

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Full text: Available Index: IMSEAR (South-East Asia) Language: English Year: 2015 Type: Article