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The present investigation entitled “Effect of foliar application of micronutrients on fruit set, yield attributes and yield of winter season guava cv. L-49 ” was carried out at Main Experiment Station, Department of Horticulture, Narendra Deva University of Agriculture & Technology, Kumarganj, Faizabad, U.P. India during the year 2012-2013. The experiment was laid out in Randomized Block Design having seven treatments with three replications. The details of treatments were as T1- Control (water spray), T2- Zinc, sulphate (0.5%), T3 - Zinc sulphate (1.0%), T4- Borax (0.5%), T5 - Borax (1.0%), T6- Copper sulphate (0.5%) and T7 - Copper sulphate (1.0%). The maximum fruit set (68.80 per cent), fruit retention (65.80 per cent), fruit length (7.10 cm.), fruit width (6.75 cm.), fruit weight (137.70 g.), fruit volume (148.70 cm3), specific gravity (0.93) and fruit yield (42.30 kg/plant) was recorded with foliar application of borax 1.0 per cent. However, the minimum values of all characters were recorded under the control.
Key words: Guava, Foliar application, Micronutrient, Winter season, Yield attributes.