Effect of Plant Growth Regulators on Yield and Quality of Chilli (Capsicum annuum L.) cv. Bidhan Chilli-4

Abstract

Present experiment entitled “Effect of plant growth regulators on yield and quality of chilli (Capsicum annuum L.) cv. Bidhan Chilli-4" was conducted at experimental farm of Horticulture and Post-harvest Technology, Palli Siksha Bhavana, Palli Shikhsha Bhavana Visva Bharati West Bengal during rabi season of 2020. The experiment was laid out in randomized block design (RBD) with three replications and ten treatments. The concentrations of treatments were T1 =NAA 25 ppm, T2 = NAA 50 ppm, T3 = NAA 75 ppm, T4 = GA3 5 ppm, T5 = GA3 15 ppm, T6 = GA3 30 ppm, T7 = CCC 200 ppm), T8= CCC 400 ppm, T9 = CCC 600 ppm and T10 Control. The result of the study revealed that maximum plant height (30.96, 44.40, 54.06 and 67.01cm at 30,60, 90 and 120 DAT respectively), number of branches per plant (8.96, 13.43, 18.00 and 23.53 at 30, 60, 90 and 120 DAT respectively), plant spread (19.50, 30.96, 40. 10 and 54.73 cm at 30, 60, 90 and 120 DAT respectively), flowers per plant ( 400.20), fruits per plant (144.33), fruit length ( 9.63 cm), breadth of fruit (1.93 cm ), yield per plant ( 399.43 g), yield per plot ( 98.74 kg/ plot) , yield per hectare (134.53 q/ha), ascorbic Acid (190.76mg/100g), capsaicin ( 0.38 %) capsanthin content (296.109 ASTA Unit), Oleoresin content (11.57%) and minimum days required to 50% flowering (41.68 DAT), were recorded in treatment T3- NAA (75 ppm). Therefore, it is recommended to employ the NAA 75 ppm to chilli growing farmers to enhance growth and maximize yield.