A field experiment was conducted to find out the Effect of two concentrations of GA3 and NAA and their combinations on growth and yield of brinjal (Solanum melongena L.) cv. Kashi Sandesh. The experiment was laid out in Randomized Block Design with three replications and nine treatments. Higher growth attributing characters viz. maximum plant height (71.14 cm), number of leaves per plant (71.65), number of branches (12.77), Days to 50% flowering (43.12) and yield & yield attributing characters, viz,. number of fruit per plant (16.17), fruit length (11.66 cm), fruit weight (180.48 g), fruit diameter (9.48 cm), fruit yield (2.91 kg/plant), fruit yield (29.22 kg/plot), fruit yield (383.95 q/ha) were recorded under T8- NAA + GA3 (40 ppm + 50 ppm). Similarly, maximum net return (421750.86 Rs/ha) and B:C ratio (2.73) were recorded under T8- NAA + GA3 (40 ppm + 50 ppm) followed by treatment T7- and T6. T9- Control was produced poor performance among all the treatments.

The present investigation entitled “Effect of plant growth regulators on growth and yield of a cabbage (Brassica oleracea var. Capitata L.)” is an experiment was conducted during 2020-21 at research form of Udai Pratap Autonomous College, Varanasi (U.P.). The nine treatment comprising of T1 - Control , T2 – NAA (50ppm), T3 - NAA (75ppm), T4 – NAA (100 ppm), T5 - NAA (120 ppm), T6 -GA3 (50 ppm), T7 - GA3 (75ppm), T8 - GA3 (100 ppm) and T9 - GA3 (150 ppm), were evaluated in randomised block design with three replications. The experimental finding revealed that the treatment T9 showed better response to plant growth and yield attributes. However, maximum yield 400.74 q/ha was obtained with the application of T9 (GA3 150 ppm) fallowed by T5 - (NAA 120 ppm). On the basis of economic analysis with the application of GA3 150 ppm in T9 gave maximum cost benefit ratio is 1: 2.57 During 2020-21, respectively and was found most beneficial and feasible for the cultivation of cabbage.