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近年来,苹果幼树的拉枝技术在生产上得到了广泛应用。随拉枝而出现的问题是枝背上发生一些旺枝,从而导致光照条件恶化,中、短枝数量相对减少,影响了花芽的形成。为了减少拉枝后的枝背上发生旺枝,增加中、短枝的数量,以尽快形成早期产量,我们于1989年苹果树萌芽前,对4株3年生金冠树和6株2年生红星树的中心枝头和竞争枝进行反复拉枝。即先把枝条拉向预定方位的相反方向,呈80～90度;待芽萌生到3～5cm时,再把该枝轻轻扶直拉向预定方位,呈水平状态。1990年对这些树的同类枝条重复上述方法,取得了明显效
In recent years, the apple tree twig technology in production has been widely used. With the pull branch and the emergence of the problem is the emergence of some branch branches Wang branches, resulting in deterioration of light conditions, the relative number of short branches, affecting the formation of flower buds. In order to reduce the occurrence of twig branches on the branch after the twig branch and increase the number of middle and short twigs so as to form the early output as soon as possible, we examined four 4-year-old golden crown trees and 6 biennial red star trees The center of the branch and competition branches repeatedly pull branches. That is, the first branch to pull the direction of the intended orientation of the opposite direction, was 80 to 90 degrees; until bud sprouting to 3 ~ 5cm, and then gently stretch the branch to a predetermined orientation, was horizontal. The above method was repeated in 1990 for the same kind of branches of these trees and achieved remarkable results