Ecology, Environment and Conservation Paper

Vol.30, Jan. Suppl. Issue, 2024; Page No.(S379-S384)

EFFECT OF PLANT GROWTH REGULATORS ON VEGETATIVE AND PHENOLOGICAL CHARACTERS OF OKRA (ABELMOSCHUS ESCULENTUS L. MOENCH)

P. Dhal, S.K. Dash, P. Tripathy, G.S. Sahu, S. Mohanty and A. Mohanty

Abstract

A field experiment was conducted at Department of Vegetable Science, Odisha University of Agriculture and Technology, Bhubaneswar, consecutively for two years during kharif 2020 & 2021. Foliar spray of PGRs at various concentrations were given to okra crop cv. Utkal Gourav. The experiment was laid out in RBD with three replications and eleven treatments viz.,GA3 (100 ppm) (T1), GA3 (150 ppm) (T2), NAA (150 ppm) (T3), NAA (200 ppm) (T4), Thiourea (250 ppm) (T5), Thiourea (500 ppm) (T6), Cycocel (200 ppm) (T7), Cycocel (250 ppm) (T8), Paclobutrazol (100 ppm) (T9), Paclobutrazol (200 ppm) (T10) and Control (T11). The foliar sprays were done at 15 DAS and 30 DAS. All growth parameters significantly performed better as compared to the control. The result revealed that NAA showed higher result with respect to plant height (144.56 cm) and internodal length (8.84 cm).Cycocel 250 ppm recorded significantly better with respect to no. of nodes per plant (21.66), no. of primary branches per plant (3.48), no. of leaves (32.81), leaf area (238.40 cm2), leaf chlorophyll content (1.396 mg/100 g), days to 50 % flowering (35.00).