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1986—1990年,四川省盐源果场用长穗高接方法高改劣质苹果树9000余株,获较高的经济效益。在高改的苹果树中,有部分接穗当年开花结果,单株产金冠苹果10公斤左右。实践表明,高接的接穗,只要是生长充实、在饱满花芽的长果枝便能结果。据此,1991年2—3月,我们开展了苹果长穗高接当年投产工作,高改祝光苹果87株,现将情况简述如下: 一、材料用金冠苹果冬季修剪的枝条,选生长充实、花芽饱满,长20—40厘米,无病虫害的长果枝作接穗。高改树为25年生丽江山定子砧祝光,树势强健。二、方法 1、高接时期:2月20日至3月10日祝光苹果开始萌动至现蕾前,气温13℃左右。 2、留好骨架:详见《苹果的多头长穗高接》一文(刊于《四川农业科技》1988年第6期)。
1986-1990, Yanshan fruit field in Sichuan Province with long spike high connection method to change more than 9000 poor quality apple trees, higher economic benefits. In the high change of apple trees, some scion then flowering results, per plant golden crown apple about 10 kg. Practice shows that high-access scion, as long as the full growth, fruit buds in the full bloom will be the result. According to this, from February to March 1991, we launched the production of long ears of apple followed by the year of construction, and made 87 photos of high-quality apples. Now, the situation is briefly described as follows: I. Materials The branches of winter-cut pruning of Golden Delicious apple Full, flower buds full, 20-40 cm long, no pests and diseases of the branches of fruit for the scion. High change tree for 25 years Lijiang mountain anvil wish light, strong tree vigor. Second, the method 1, high period: February 20 to March 10 Zhuang apple began to budding bud before, the temperature is about 13 ℃. 2, keep the skeleton: See “Apple long long spike high” article (in “Sichuan Agricultural Science and Technology” 1988 the sixth period).