Effect of plant growth regulators on growth parameters of garden pea (Pisum sativum L.) var. Kashi Nandini

Abstract

The study entitled “Effect of Plant Growth Regulators on Growth and Yield Attributing Parameters of Garden Pea (Pisum sativum L.) var. Kashi Nandini” was conducted during the Rabi season of 2023-24 at the Department of Vegetable Science, Pt. K.L.S. College of Horticulture and Research Station, Rajnandgaon (C.G.), under Mahatma Gandhi Udyaniki Evam Vaniki Vishwavidyalaya, Durg (C.G.). Thirteen treatments comprising various plant growth regulators (NAA, GA₃, Ethrel, CCC, Nitrobenzene, and Triacontanol) at different concentrations were tested in a Randomized Block Design (RBD) with three replications. Among all treatments, foliar application of GA₃ at 100 ppm (T₄) showed significantly superior performance in growth and yield parameters. It recorded the highest plant height (93.41 cm at 60 DAS), number of branches per plant (4.49), and number of nodes per plant (14.45), along with the earliest flowering (32.33 days to first flowering). This treatment also produced the highest number of pods per cluster (1.87), pods per plant (10.73), pod length (9.14 cm), pod diameter (1.76 mm), number of seeds per pod (9.03), fresh pod weight per plot (1.72 kg), and pod yield per hectare (116.15 q/ha). Thus, GA₃ at 100 ppm is recommended as the most effective treatment for enhancing both growth and yield in Garden Pea var. Kashi Nandini.