tailieunhanh - Genetic variability studies in tamarind (Tamarindus indica L.)

Genetic variability, heritability, genetic advance and genetic advance as a per cent over mean for twenty characters were assessed by field evaluation (part of survey) of two thirty one tamarind genotypes in six districts (viz, Belagavi, Dharwad, Gadag, Bellary, Chitradurga and Gulbarga) with different location during 2018. High degree of variation was observed for all characters. In all cases, phenotypic variances were higher than the genotypic variance. The difference between phenotypic coefficient of variation and genotypic coefficient of variation were found to be narrow for most of the traits except trunk diameter, spread of the east to west and spread of the tree north to south, crown size, pod thickness, pulp per cent, seed per cent and shell per cent. The high estimates of heritability as well as genetic advance over per cent mean were found for tree height, trunk diameter, spread of the tree east to west, spread of the tree north to south, crown size, pod length, pod thickness, pod weight, pulp weight, number of seeds per pod, seed weight per pod, shell weight per pod, vein weight per pod, pulp per cent, seed per cent, shell per cent, vein per cent, tamarind pod yield and tartaric acid content. | Genetic variability studies in tamarind (Tamarindus indica L.)

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