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用三种修剪方法连续四年试验,观察了元帅苹果树修剪、新梢生长、座果和产量之间的相互关系。无论初结果树或盛果树,重修剪都引起新梢生长强度增大,使初结果树花芽形成少,座果低;盛果树落花落果严重,最终表现低产。新梢生长小.树势衰弱,往往大小年结果,累计年产量也低;而缓放修剪长势中席的盛果树,年产量或累计产量都远远高于其它修剪处理。修剪与新梢生长,产量关系差异显著。用回归和增产效果比较分析,适应元帅苹果高产的新梢平均生长量是36.67—41.67cm,座果率为12%以上。因此,对长势过强或过弱的植株,采用适当修剪方法,促进树势转化,并维持在适宜的生长范围,是提高产量的基本修剪技术措施.
Using three pruning methods for four years in a row, we observed the interrelationship between mandarin apple tree pruning, shoot growth, fruit yield and yield. Regardless of the initial results of trees or fruit trees, heavy pruning have caused the growth of new shoots increased strength, so that the early results of the formation of flower buds less, low fruit; fruit trees fall flowers serious, the final performance of low yield. Shoot growth is small. Shrub weakness, often the size of the year results, the cumulative annual output is also low; and the growth of the bench to relieve the growth of fruit trees, the annual output or cumulative yield is much higher than other trimming treatment. Pruning and shoot growth, yield significant differences. With the regression analysis and yield increase effect, the average growth rate of new shoots adapted to Marshal apples is 36.67-41.67cm, and the fruit set rate is above 12%. Therefore, the growth of too strong or too weak plants, the use of appropriate pruning methods to promote the transformation of tree potential, and maintain a suitable growth range, is to improve the yield of basic pruning techniques.