Effect of Hydrogen Cyanamide on Enhancing BUD Burst, Maturity and Improving Fruit Quality of Perlette Grapes

To study the effect of hydrogen cyanamide on bud burst, maturity and fruit quality, the dormant vines of Perlette grapes were treated with hydrogen cyanamide @ 1.5, 2.0 and 2.5% of active ingredients just after pruning. The vines sprayed with 1.5, 2.0 and 2.5% of hydrogen cyanamide recorded 65, 72 and 77% of total bud burst respectively after 35 days of pruning. In all the treated vines, the bud burst was completed by 40 days of pruning. In case of control treatment, the commencement of bud burst (12% only) was after 60 days of pruning and total bud burst was completed after 70 days of pruning. The applications of hydrogen cyanamide also advanced the time of flowering by 11–13 days and maturity by 6–8 days, as compared to control vines. The fruit quality in term of higher total soluble solids and lower acidity was also achieved in treated vines.