CONVERSION TABLE FOR SPECIFIC GRAVITY, DRY MATTER AND STARCH CONTENT FROM UNDER WATER WEIGHT OF POTATOES GROWN IN NORTH-INDIAN PLAINS

Abstract

Under water weight (UWW), specific gravity (SG), dry matter (DM) and starch content of potatoes were determined in tubers grown at Modipuram, Uttar Pradesh. Linear regression equations and correlation coefficients were worked out for different pairs of values. There was a positive correlation between UWW and SG (r=0.99), UWW and DM (r=0.92) and, UWW and starch content (r=0.77). Regression equations for the relationship of UWW with SG, DM and starch content are presented in this paper. Based on these equations, a conversion table has been developed for potatoes grown in North Indian plains, for the benefit of the potato processing industry.