【摘要】 冬季果梅结果枝不同疏除量 ,会影响其新梢生长及产量。结果表明 ,结果枝“疏除 3 / 5”对新梢的生长有促进作用 ,但由于新梢生长量过大 ,致使产量与对照没有明显差异 ;“疏除 1 / 5”在促进第 2年和第 3年新梢生长的同时 ,单株产量比对照分别增加 2 8.42 %和 5 1 .1 4%。“疏除 1 / 5”的处理方法为疏除原结果枝总量的约2 0 % ,即侧枝直径 4.0cm以上者 ,疏除针状枝、短果枝 60枝 ,疏除中长果枝 1 5枝 ;侧枝直径为 3 .0～ 4.0cm ,疏除针状枝、短果枝 40枝 ,疏除中长枝 1 0枝 ;侧枝直径为 2 .0～ 3 .0cm ,疏除针状枝、短果枝 2 0枝 ,疏除中长枝 6枝。更多还原

【Abstract】 Different pruning degree of winter bearing branches of Japanese apricot will influence the growth and productivity of the new shoots.The results are as followed :heavy thinning(cut off 3/5) will promote the growth of the new shoots. But because of the over-large growth mass of the shoots, there is no noticable difference in productivity between the pruned trees and the contrast; slight thinning(cut off 1/5) not only accelerates the growth of the shoots, but also increases the productivity by 28.42% and 51.14% in the 2nd year and 3rd respectively. The measures of slight thinning are : If the diameter of the lateral branch is above 4cm, cut off 60 needle-shaped branches and short bearing branches, 15 middle-long bearing branches; if the diameter of the lateral branch is between 3～4 cm, cut off 40 needle-shaped branches and bearing branches, 10 middle-long bearing branches; if the diameter of the lateral branch is between 2～3 cm, cut off 20 needle-shaped branches and bearing branches, 6 middle-long bearing branches.更多还原