Genetic variability and correlation studies among fruit characters of gamboge tree (Garcinia gummi-gutta L.)

Abstract

Genetic variability among 15 fruit characters in 120 one-parent families of Gamboge tree (Garcinia gummi-gutta L.) was studied. The mean squares differed significantly for all the characters. High heritability coupled with high genetic advance as percentage of mean was observed for length of fruit beak, weight of individual fruit, volume of individual fruit, weight of fruit rind, weight of flesh, rind: flesh ratio, weight of dry fruit rind and index of seed. Hydroxy citric acid content had high heritability coupled with moderate genetic advance as percentage of mean. Hydroxy citric acid content exhibited significant positive genotypic associations with weight and volume of individual fruit, girth of fruit, thickness of fruit rind, weight of wet and dry fruit rind, recovery percentage of dry rind and number of seeds per fruit.