Effect of Plant Growth Regulators on Vegetative Growth and Flowering of Okra [Abelmoschus esculentus (L.) Moench.]
Sonu Kumari, M. L. Meena, S. K. Moond, Rameshwr Lal Mandeewal, Aditya Kalirawna, Subhash Kalirawna
International Journal of Environment and Climate Change · pp. 67–72 · Published 24 Feb 2022
10.9734/ijecc/2022/v12i330660Abstract
A field experiment was carried out to evaluate the effects of BAP, GA3, and NAA on flowering and growth attributes of okra (Abelmoschus esculentus L. Moench) cv. Arka Anamika at the Instructional farm, Agricultural Research Station, Jodhpur Rajasthan during Kharif, 2020. Three treatments each of BAP@ T1-25, T2-50, andT3-75(ppm), GA3 @T4-25, T5-50, andT6-75 (ppm), and NAA @ T7-25, T8-50, and T9-75 (ppm)were used besides controls i.e. T0 with water spray. These three growth regulators were found to enhance early flowering. Other parameters of growth were also found to be increased by treatments with plant growth regulators in okra. Among the growth parameters, the highest inter-nodal length (6.68 cm), plant height (156.4 cm), and leaf area index (3.1) aswas recorded with GA3 @ 75 ppm treatment, whereas maximum stem diameter (43.88 mm), number of branches per plant (5.10) and number of nodes on the main stem (25.05) were recorded with NAA @ 75 ppm. The minimum number of days to the appearance of first flowering (35.50), 50% flowering (41.80), and node on which the first flower appeared (3.82) were also recorded with NAA @ 75 ppm.
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