Vol. 12, Issue 10 (2023)

The various concentrations of boric acid, copper sulphate and zinc sulphate had significant effect on various vegetative growth, yield and quality parameters and the (31.64 cm), (49.98 cm) and (75.98 cm) plant height at 45, 60 and 75 DAT, respectively, (14.54) branches per plant, (16.67) flowers per cluster, (45.43) fruits per plant, (2.99 cm) fruit girth, minimum (38.85 days) for and (45.10 days) took for 50% flowering and first harvesting, respectively and longest (8.27 cm) fruit, heaviest (11.25 g) fruit and highest (504.84 g) yield per plant, (12.12 kg) yield per plot, 15.89 t/ha) green chillies and (2.58 t/ha) dry red chillies yield were recorded under foliar application of boric acid @ 0.4% (T₂) treatment. However, the (31.64 cm), (49.98 cm) and (75.98 cm) plant height at 45, 60 and 75 DAT, respectively were recorded under foliar spray of boric acid @ 0.6% (T₃) treatment. Whereas, inferior results were observed under control (T₀) treatment. The foliar application of boric acid @ 0.4% performed significantly superior over control and remaining treatments to get highest green chilli yield per hectare. Results further indicated that the highest B: C ratio (2.90) from green chilli production was recorded under foliar application of boric acid @ 0.4% (T₂).