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Top-grafting pears with resistant varieties to prevent early defoliation and germination of the flower buds was studied.Three cultivars were chosen to graft onto limbs and branches of Cuiguan pear.The grafting postponed the leaf-falling 30-50cm below the insertion point for 10-15days.It also inhibited early germination of the flower buds located 80-100cm below the insertion.Additionally, the number of flowers, fruiting rate and single plant yield of the pear a year after the top-grafting were all significantly more than the control.It was concluded that the top-grafting with the resistant varieties could be a means applied to deter the early defoliation and flower bud germinating for the pears.