Effect of urea and GA3 on physiochemical properties of mango cv. Langra during on year.
Shrivastava D. K., Jain D. K.
Author Affiliation: Department of Horticulture, J.N.K.V.V., Jabalpur - 482 004 (M.P.), India.
Karnataka Journal of Agricultural Sciences 19 : 754-756
Abstract : A study was conducted to find out the effect of urea and GA3 on physiochemical properties of mango cv. Langra. Treatments comprised: two urea rates (0 and 2%) and three GA3 rates (0, 25 and 50 ppm). Urea at 2% increased physiological loss of weight (PLW) percentage. Urea and GA3 both increased pulp percentage. The maximum pulp percentage (73.26%) was produced by urea at 2% and GA3 at 50 ppm. The highest pulp:stone ratio (5.20) was produced by urea at 2% and 50 ppm GA3, followed by urea at 2% and 100 ppm GA3 (5.05). Pulp:peel ratio was maximum (5.83) with urea at 2% and 50 ppm GA3. The maximum TSS was recorded with 2% urea and 50 ppm GA3 (22.82%), followed by 2% urea and 25 ppm GA3 (22.43%). Maximum acidity was observed with urea at 0% and GA3 at 0 ppm (0.289%), while minimum acidity was observed with urea at 2% and 100 ppm GA3 (0.229%). GA3 at 100 ppm produced the maximum reducing sugar (12.24%) and total sugar (17.90%). Urea at 2% and 100 ppm GA3 recorded the maximum reducing sugar (6.20%), nonreducing sugar (13.00%) and total sugar (19.20%). The maximum sugar:acid ratio (83.97%) was obtained with urea at 2% and 100 ppm GA3 treatment.