CORRELATION STUDY FOR PHYSICO-CHEMICAL CHARACTERS IN JAMUN

Studies were conducted to determine the correlation between the physical and chemical characters of jamun (Syzygium cumini). Fruits from each of 20 trees in Uttar Pradesh and 5 trees in Uttarakhand (India) were collected and observations for physical parameters (fruit weight, average fruit size, seed size, seed weight, pulp:seed ratio and pulp percentage, among others) and chemical properties (total soluble solids, acidity, TSS:acid ratio, total sugars, reducing and non-reducing sugars, sugar:acid ratio and ascorbic acid) were recorded. The estimates of correlation coefficient between all possible pairs of physicochemical characters of fruits were worked out. Results showed major significant correlations for pulp weight, fruit volume, fruit size and pulp:seed ratio. Highly significant correlations were also recorded for TSS and acidity along with seed size for the various jamun genotypes.