Effect of zinc and gibberellic acid on growth and yield of cluster bean

Abstract

A field experiment was conducted during kharif season of 2023 at Crop Research Farm, Department of Agronomy. The treatments consisted of 3 levels of Zinc (15 kg/ha, 20 kg/ha and25 kg/ha) and GA3 (30, 40 and 50 ppm) along with recommended doses of nitrogen, phosphorus and potash and a control (20-40- 25 kg N-P-K/ha). The results showed that application of 25 kg/ha zinc along with foliar spray GA3 50 ppm (Treatment 9) recorded highest plant height (110.41 cm), highest number of nodules per plant (22.12), highest dry weight (33.90 g), pods per plant (50.13), seeds per pod (8.13), test weight (28.53 g), seed yield (1314.10 kg/ha) and stover yield (3215.90 kg/ha). The aforesaid treatment also recorded maximum gross return (75214.00 INR/ha), net return (50054.16 INR/ha) and B:C ratio (1.99).