Effect of growth regulators on growth, yield and quality of chilli in saline belt of West Bengal

To identify the most suitable growth regulators among GA₃, NAA, CCC, Ethrel, PPP₃₃₃ and MH to influence the vegetative growth, flowering behaviour, yield and quality for improvement of chilli var. Beladanga, the experiment was conducted in the saline belt of West Bengal with 13 treatments and three replications. The investigation revealed that NAA at lower concentration (50 ppm) by foliar spray showed encouraging effect on vegetative growth and yield parameters. The highest green chilli yield per ha was obtained (270.75 q/ha) with NAA at 50 ppm in comparison to other treatments. Whereas PPP₃₃₃ at 250 ppm treated plants produced the lowest yield (59.47 q/ha). Regarding quality parameters of fruit, as obtained from fruit analysis, GA₃, CCC and MH improved fruit quality at all concentrations with higher capsaicin (100.80–115.30 mg/g of dry biomass) and ascorbic acid content (172.60–177.50 mg/100 g of green edible chilli).