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1981—1984年选用15年生、生长势强、“旺树低产”结果现象显著的国光苹果树作试材,将传统性冬季修剪改为秋剪,以探讨其对产量的影响。三年结果表明,效果是显著的,获得了年平均亩产2760kg的产量,较对照树提高54.1％,並且使生长与结果达到相对平衡。大面积推广应用,也取得了同样结果。
In 1981-1984, Guoguang apple tree with 15-year-old growth potential and strong “low tree yield” was selected as test material, and the traditional winter pruning was changed to autumn shearing to explore its impact on yield. Three years of results show that the effect is significant, access to the annual average yield of 2760kg per mu, compared with the control tree increased 54.1%, and the growth and the results reached a relative balance. Large-scale promotion and application, but also achieved the same result.