1 Present address: Assistant Professor, Pandit Jawaharlal Nehru College of Agriculture, Karaikal
Experiments were conducted to investigate the effect of TIBA (2, 3, 5-Triiodoben-zoic acid) foliar spray on soybean cv Co. 1 in winter and summer seasons. The source and sink components were increased by TIBA at 50 ppm in both the seasons.