An experiment was conducted to find out the “Effect of foliar application of plant growth regulators and Nutrients on yield and quality of guava (Psidiumguajava L.). cv. Lucknow-49”. The plant growth regulators Naphthalene Acetic Acid @ 100, 200 and 300 ppm and Ethrel @ 1000, 1200 and 1800 ppm were given as foliar application of Nutrients like Potassium Iodide @ 1.0%, 1.5% and 2.0% different concentration of urea @ 1.0%, 1.5% and 2.0% concentration. Foliar application of urea @ 1.5% showed the best result in single fruit weight, number of fruits per plant and yield per plant, high TSS, high total sugar, high ascorbic acid and low acidity content. Foliar spray of Potassium Iodide recorded the highest flower drop and lowest yield. The foliar application of urea @ 1.5 percent showed maximum yield of (34.56 kg/tree) and has good quality characters followed by NAA @ 200 ppm (33.28 kg/tree).
