Response of soybean (Gycine max L.) to exogenous application of gibberellic acid under rainfed conditions

Abstract

A field experiment was carried out at Agriculture Research Station (Dr. PDKV), Buldana during 2016 on a vertisol soil, to study the response of soybean (Gycine max L.) to exogenous application of gibberellic acid under rainfed conditions. In soybean, 10 treatments comprising gibbrellic acid–management practices (application of 15, 30, 45 ppm GA3 at flowering, pod development stages and control) were tested on vertisol. Results indicated that two applications of 45 ppm GA3 at flowering and pod development stages recorded significantly higher plant height, number of branches /plant, number of pods/ plant, seed index and grain yield (21% more than control), higher oil yield, rain water use efficiency and higher gross and net monetary returns.