Correlation studies among morphological and bio-chemical parameters in mango (Mangifera indica L.)

Abstract

The present investigation was conducted during 2015-17 at the Division of Fruit Crops, ICAR-Indian Institute of Horticultural Research (ICAR-IIHR), Bengaluru. In the study, 156 mango cultivars collected from different regions of India and maintained in field gene banks at ICAR-IIHR were used. The genotypic and phenotypic correlation coefficients were worked out for fifteen morphological and bio-chemical characters. Fruit weight recorded significant positive correlation with pulp weight, skin weight, fruit width, stone weight, fruit thickness, fruit length, skin thickness and pulp per cent. It was negatively correlated with total carotenoids, TSS, ascorbic acid and total phenols. The physical characteristics had significant positive correlations with each other, but had negative correlations with the biochemical characteristics. The highly significant positive correlation between desirable characters is favourable to a plant breeder, because it might help in simultaneous improvement of those characters. The correlation studies between different morphological and bio-chemical characters would certainly provide an idea, which might be utilized for selection of desirable parameters for future breeding programmes.