Journal ID : AMA-16-10-2024-13271
[This article belongs to Volume - 55, Issue - 10]
Total View : 356

Title : Effect of Gibberellic Acid and Maleic Hydrazide on morphological and reproductive characters of okra [Abelmoschus esculentus (L.) Moench]

Abstract :

Field experiment was conducted to investigate the "Effect of Gibberellic Acid and Maleic Hydrazide on Growth of Okra [Abelmoschus esculentus (L.) Moench]" at V.P.O. Maheru, Tehsil Phagwara, District Kapurthala, Punjab under the Department of Horticulture, Lovely Professional University, Phagwara, Jalandhar, Punjab during the year 2018-19. The experiment utilized plant growth regulators and growth retardant, specifically gibberellic acid and maleic hydrazide, at varying concentrations in a Randomized Block Design layout. The results demonstrated that significantly higher growth parameters, such as plant height (98.00 cm) and leaf area index (2.016), were achieved with the application of Maleic Hydrazide 60 ppm combined with GA3 60 ppm. Additionally, the number of leaves per plant (33.18) and branches per plant (4.46) at 75 days after sowing (DAS) were recorded with the application of Maleic Hydrazide 100 ppm combined with GA3 60 ppm. Earliest flowering (36 days) was observed with the application of Maleic Hydrazide 100 ppm combined with GA3 60 ppm. Gibberellic acid promotes plant growth by enhancing cell elongation, while maleic hydrazide acts as a growth retardant, reducing excessive vertical growth while promoting branching. Combination of these chemicals at different concentrations showed improvements in various growth parameters such as plant height, leaf area, and early flowering. This indicates that the balanced use of growth regulators can optimize plant development and yield in okra cultivation.

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