Economics of plant growth regulators in brinjal (Solanum melongena L.) under semi-arid condition of Rajasthan

The experiment was carried out during the year 1997–98 to find out the economics of plant growth regulators in brinjal under semi-arid condition of Rajasthan. It was found that the yield of brlnjal can be increased significantly by two sucesslve spray of GA₃ and NAA at 35 and 45 days after transplanting. The maximum net profit of Rs. 107498.07/ha was obtained with the spray of 100 ppm GA₃ followed by 50 ppm NAA (Rs. 102383.27/ha) as compared to control (Rs. 78493.07/ha). The maximum cost: benefit ratio (1: 5.60) was found with the spray of 50 ppm NAA. However, the higher concentrations of GA₃ and NAA were found uneconomic.