Genetic variability and correlation studies in mango collections of South Andaman

Fourteen collections of mango were studied for their genetic variability and correlation among various fruit characters. The genetic and phenotypic coefficients of variance, heritability, genetic advance and coefficient of correlation were estimated for 15 fruit characters which included length, breadth, peel, pulp, stone. TSS, sugars, ascorbic acid, carotenoids and overall quality. A remarkable variability was observed among collections for these characters. All the characters showed higher estimates of broad-sense heritability, whereas genetic advance was recorded very high in carotenoids, fruit weight, volume of fruit and ascorbic acid. Fruit weight, fruit length, fruit breadth, fruit pulp and overall quality were found to be effective selection indices.