Effect of Different Plant Growth Regulators Applied as Foliar Sprays on the Growth and Flowering of Brinjal (Solanum melongena L.) under Agro-Climatic Conditions of Chhattisgarh Plains, India

Abstract

Present investigation “Effect of different plant growth regulators applied as foliar sprays on the growth and flowering of Brinjal (Solanum melongena L.) under agro-climatic conditions of Chhattisgarh plains” in var. Kashi Taru is located at the farm of KVK (Raipur) affiliated with IGKV, Raipur,(C.G.) in Rabi season 2022-23.The experiment was conducted in RBD (Randomized Block Design) with 3 replications, consisting of 10 treatments of 3 plant growth regulators with different concentrations, including GA3 (25, 50 and 75 ppm); IAA (25, 50 and 75 ppm) and NAA (25, 50 and 75 ppm) along with control as foliar application at pre flowering stage (30 DAT) and pre fruiting stage (45 DAT). Among the different treatments, the findings indicated that the application of Treatment T3 i.e. GA3 @ 75 ppm gave the maximum plant height (89.96 cm), primary branches (11.76) and secondary branches (25.17) per plant over control. The least days taken to 50% flowering were recorded (51.62 days) with GA3@ 75 ppm and maximum days taken to 50% flowering were found with control (58.87 days). The highest number of flowers per cluster was recorded in GA3@ 75 ppm (4.01), followed by NAA@75 ppm (3.97).  Thus, a suitable level i.e., 75 ppm of GA3, is effective in enhancing brinjal growth and flowering in the agro-climatic conditions of the Chhattisgarh plains.