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The experiment was conducted on the Horticultural Farm of Sher-e-Bangla Agricultural University, Dhaka, Bangladesh during Rabi season to determine the growth, yield and economic benefit of chilli as influenced by plant growth regulators. The experiment consisted of two factors. Factor A: Plant growth regulators (three levels) as G0: Control, G1: NAA (40 ppm), G2: Cytokinin (10 ppm) and Factor B: Application method (three levels) as M1: Seed soaking with plant growth regulators for 6 hours, M2: Foliar spray of plant growth regulators at vegetative stage, M3: Foliar spray of plant growth regulators at flower bud initiation stage. The experiment was laid out in a Randomized Complete Block Design with three replications. In the case of plant growth regulators, the highest yield (33.56 t/ha) was found from G1 treatment, whereas the lowest (13.85 t/ha) from G0 treatment. For the application method, maximum yield (27.12 t/ha) was recorded from M3 treatment, while the minimum yield (19.92 t/ha) from M1 treatment. Due to combined effect, the highest yield (38.10 t/ha) with net income (1075498) and BCR (3.39) was observed from G1M3 treatment combination, while the lowest yield (11.22 t/ha) with net income (147131) and BCR (1.49) from G0M1 treatment combination. So, the economic analysis revealed that the G1M3 treatment combination appeared to be the best for achieving the higher growth, yield and economic benefit of chilli.
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