Field experiment was undertaken at the Horticultural Research Station, Mondouri, of Bidhan Chandra Krishi Viswavidyalaya, West Bengal, during the rabi season of 2022 -2023, with the aim to investigate the effect of biostimulants on the plant morphology, development, yield and fruit quality of the chilli variety Bullet. Hence, 6 different treatments of ECOHUME, along with STANOHUME were given as foliar spray during the experiment following Randomized Block Design with 4 replications. The results indicated that the treatment T2 (ECOHUME at 2 mL/L) significantly influenced on growth of chilli and revealed the maximum plant height, higher number of primary and secondary branches, earliness in flowering, early fruit initiation and fruit development, maximum number of fruits, highest fruit weight, highest yield and better cosmetic quality of fruit. Out of six treatments, the treatment T2 showed significant effects on most of the characters of Bullet variety of chilli and it emerged as a best treatment followed by T1(ECOHUME at 1 mL/L) which showed considerable effects though the higher doses of ECOHUME registered significant results in comparison with reference product. The foliar application of ECOHUME at 2 mL/L twice at 20 days after transplanting and 45 days after transplanting or during flower initiation stages may be recommended to get better results and it emerged as a better treatment to be used in the farmers’ field after replicated field trial.
