APPLICATION OF PLANT GROWTH REGULATORS AND NUMBER OF SPRAY ON GROWTH, YIELD AND ECONOMIC BENEFIT OF SWEET PEPPER

Abstract

The experiment was conducted in the Horticultural Farm of Sher-e-Bangla Agricultural University, Dhaka, Bangladesh. The experiment consisted of two factors. Factor A: Plant growth regulators (four levels) as G Gibberellic Acid (GA 3 ) @ 30 ppm, G : 4-Chloro Phenoxy Acetic Acid (4-CPA) @ 45 ppm and G 3 ii

2 : 4-Chloro Phenoxy Acetic Acid (4-CPA) @ 45 ppm + Gibberellic Acid (GA ) @ 30 ppm and Factor B: Number of spray (three levels) as N 0 3 : Control (no spray), N 1 : Two spray, N Three spray. The experiment was laid out in a Randomized Complete Block Design with three replications. In case of plant growth regulators, the highest yield (27.77 t/ha) was found from G treatment, whereas the lowest (18.87 t/ha) from G 2: treatment. For number of spray the maximum yield (26.0 t/ha) was recorded from N 0 treatment, while the minimum yield (19.87 t/ha) from N 0 2 treatment. Due to combined effect, the highest yield (31.8 t/ha) with net income (1416558) and BCR (2.46) was observed from G 3 N treatment combination, while the lowest yield (17.5 t/ha) with net income (433045) and BCR (1.49) from G 2 0 N treatment combination. So, economic analysis revealed that the G 3 N 2 0 treatment combination appeared to be the best for achieving the higher growth, yield and economic benefit of sweet pepper.