Efficacy of Plant Growth Regulators on Different Yield Parameters of Cucumber cv. Malini under Shade Net Conditions

The experiment was conducted to study the effect of different plant growth regulators on yield of cucumber cv. Malini under shade net conditions. The experiment was carried out with 10 treatments GA3 at 75 ppm, 150 ppm and 250 ppm, Ethrel at 100 ppm, 200 ppm and 300 ppm, Salicylic acid at 75 ppm, 150 ppm and 250 ppm and control (water spray) in 3 replications. The yield parameters like number of fruits per plant, fruit weight, fruit length etc. were significantly influenced by plant growth regulators. Among all yield parameters superior values for maximum days taken for final harvest (86.49 days), maximum fruit weight (248.00 g) were recorded in treatment GA3 at 250 ppm, treatment GA3 at 75 ppm was recorded with the highest values for number of fruits per vine (9.46) and fruit diameter (4.56cm) and GA3 at 150 ppm recorded with highest values for fruit length (21.33 cm) as compared to other treatments. Among all treatments, treatment with GA3@ 75 ppm showed positive effect in terms of gross returns and over all net returns.