Enhancing growth and yield of knol khol: Analyzing triacontanol’s biochemical mechanisms and comparative effects against untreated controls
DOI:
https://doi.org/10.48165/jefa.2026.21.1.3Keywords:
Triacontanol, knol khol, plant growth regulator, growth attributes, yield attributesAbstract
A field experiment was conducted at the Instructional Farm of The Neotia University, Sarisha, 24 Parganas (South), West Bengal to evaluate the effect of varying concentrations of triacontanol on the growth and yield of knol khol (Brassica oleracea var. gongylodes L., cv. Quick Star). The study followed a Randomized Block Design (RBD) with seven treatments—T1 (Control), and triacontanol T2 (1 ml l-1), T3 (1.25 ml l-1), T4 (1.5 ml l-1), T5 (1.75 ml l-1), T6 (2 ml l-1), and T7 (2.5 ml l-1), each replicated fourtines. Among all the treatments, T3 (1.25 ml l-1) exhibited the highest plant height (47.09 cm), number of leaves (13.52), leaf length (30.10 cm), knob length (11.43 mm), knob weight (262.46 g), yield per plot (7.61 kg), and total yield (19.03 t ha-1). However, T6 (2 ml l-1) recorded superior values for stem diameter, knob diameter, root length, and chlorophyll content. Overall, 1.25 ml l-1 triacontanol proved most effective in enhancing vegetative growth and yield under West Bengal conditions.
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