Effect of source manipulation, plant growth regulators and chemical on biochemical parameters in green gram (Vigna radiata L. Wilckzek) cv. GAM-5

Abstract

The influence of source manipulation (nipping, 25% defoliation and 50% defoliation), plant growth regulators (GA3 and NAA at 25 and 50mg/l respectively) and chemical (Thiourea 500 and 1000mg/l) on the biochemical parameters like protein content and total nitrogen, were studied using factorial randomized block design in two respective years, i.e., 2016 and 2017 at 75 DAS/harvest. The biochemical parameters like protein content and total nitrogen increased at the harvesting stage of green gram under the nipping treatment and GA3 50 mg/l at 30 DAS of the growth phase of the crop. The treatment of nipping M2 was noted significantly higher value for protein i.e., 26.63 % and for total nitrogen i.e., 4.26 %. While, the treatment S3 GA3 50 mg/l was noted significantly higher value for protein i.e., 26.98 % and for total nitrogen i.e., 4.32 % contributing to the higher seed yield under M2 nipping treatment i.e., (1719.7 kg/ha) and S2 treatment i.e., GA3 25 mg/l (1714.1 kg/ha). Thus, GAM-5 had a better source-sink partitioning efficiency.