Genetic Variability and Heritability Estimation in Cassava (Manihot esculenta Crantz)
Abstract
An investigation was carried out with 20 genotypes of cassava to estimate genetic variability and heritability for eight characters under rainfed conditions of Andhra Pradesh. Analysis was carried for variance, heritability and genetic advance for all the eight characters. In general phenotypic coefficient of variation was higher than the genotypic coefficient of variation for all the characters were studied. Phenotypic and genotypic coefficient of variation, heritability and genetic advance estimates were high for tuber yield per plant (91%), number of tubers (83.06%), and number of leaves (99.4%) indicating their efficacy in selection. Present study indicated that for identification of higher yielding genotypes more emphasis has to be laid on characters like Stem girth, number of leaves and number of tubers for improving the tuber yield.References
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