Abstract

A study was conducted during 2011-12 and 2012-13 at Horticultural Research Institute, AARI, Faisalabad, Pakistan to study the effect of urea and naphthalene acetic acid (NAA) to control premature fruit drop, improve fruit yield and quality in ber cv. Suffon. The experiment was laid out in RCBD with six treatments. The treatments were T1 (control), T2 (NAA 20 ppm), T3 (NAA 40 ppm), T4 (urea 1.5%), T5 (NAA 20ppm + 1.5% Urea) and T6 (NAA 40 ppm + 1.5% urea). Spray was applied two times i.e. first spray was accomplished in last week of October and second spray in the last week of November. Physicochemical characteristics like fruit weight (13.57 g), fruit length (33.96 mm), fruit breadth (27.59 mm), vitamin-C (132.25 mg/100g) and yield (112.33 kg/tree) were recorded as maximum in T5. Minimum acidity percentage (0.31%) and fruit drop percentage was found significantly different in T5 (35.86%) and T1 (50.04%). It was concluded that T5 (NAA 20 ppm + 1.5% urea) is the most suitable combination of chemicals to control fruit drop, improve fruit yield and quality in ber cv. Suffon.