Vol. 12, Issue 9 (2023)

Author(s):
Satendra Kumar Singh

Abstract:
This investigation was undertaken at college campus orchard, B.R. D. Post Graduate College, Deoria, UP-274001 to study entitled “Response of plant growth substances on vegetative growth and fruiting of tomato (Lycopersicon esculantum Mill.) under Tarai region” during Rabi season-2022 to investigate the response of plant growth substances on plant height, number of branches plant^-1, days to flowering, length of fruit, diameter of fruit, number of fruit plant^-1 and yield plant^-1. The experiment was laid out in Randomized Block Design (RBD) with nine treatment and each replicated thrice. Ten treatments of plant growth substances are water spray-T_1, 15 ppm GA₃ (T₂), 25 ppm GA₃ (T₃), 35 ppm GA₃ (T₄), 15 ppm NAA (T₅), 25 ppm NAA (T₆), 35 ppm NAA (T₇), 3 ppm 2,4-D (T₈), 4 ppm 2,4-D (T₉) and 5 ppm (T₁₀). Spraying of GA₃ @ 35 ppm (T₄) recorded the maximum plant height (105.30 cm), maximum number of leaves plant^-1 (65.22), number of branches plant^-1 (11.50), earliest flowering (42.08 days), length of fruit (6.00 cm), diameter of fruit (5.10 cm), number of fruit plant^-1 (31.40) and yield plant^-1 (3.67 kg plant^-1). Therefore, considering vegetative growth and fruiting parameters, GA₃ @35 ppm (T₄) was found best compared to other treatment during experiment.