Vol. 9, Issue 1, Part D (2025)

The present investigation entitled “Effect of plant growth regulators on growth, yield and yield attributes of French bean (Phaseolus vulgaris L.).” was carried out during Rabi (2023- 2024) at the Center of Excellence on Protected Cultivation and Precision Farming Unit, Department of Vegetable Science, College of Agriculture, IGKV, Raipur, Chhattisgarh. There are 13 treatments, each replicated thrice in RBD. The treatments consist of T₀: Control, T₁: NAA@ 10 ppm, T₂: NAA@ 15 ppm, T₃: NAA@ 20 ppm, T₄: GA3@150 ppm, T₅: GA3@200 ppm, T₆: GA3@250 ppm, T₇: CCC@ 250 ppm, T8: CCC@ 300 ppm, T9: CCC@350 ppm, T10: Kinetin@ 10 ppm, T11: Kinetin@ 20 ppm and T12: Kinetin@ 40 ppm. Foliar application of PGR was done at 20 DAS and 40 DAS of French beans. The result revealed that T6 recorded significant maximum plant height (55.06 cm), the maximum number of leaves per plant (33.93), The maximum number of branches per plant (15.47), The maximum leaf area index (0.790), Cycocel 350 ppm (T9) was recorded the minimum number of days (27.67 days) for first flowering and T6 recorded the maximum number of days to first flowering (36.87 days), The maximum number of days to 50% flowering (39.80 days) was recorded by T6 and minimum number of days to 50% flowering (32.53 days) by T₉, The maximum number of pods per plant (53.87) and maximum pod length (13.91 cm) was recorded by T₆, the maximum pod diameter (1.06 cm) was observed in Cycocel 350 ppm (T9), The maximum weight of 10 pods (64.51 g), maximum yield per plant (340.49 g) and maximum yield per ha (205.00 q) were recorded by T₆. Treatment T6 also recorded maximum value in quality parameters such as dry matter production (16.426 g) while the maximum nitrogen content (0.497%) and protein content were observed in (T3) NAA 20 ppm.