夏季不同修剪方法对梨树生长的影响

Effects of Different Pruning Methods on Growth of Pear Trees in Summer

研究了夏季不同修剪方法对梨树生长的影响,结果表明:(1)夏季不同修剪方法对树高、干高和干周的生长有一定影响,但差异不显著;(2)与对照树体相比,春梢短截(1/4)处理树体营养生长得到缓和,二次梢生长总量最大。(3)春梢短截(1/3)处理下,春梢与主干之间的角度越小和春梢在母枝上的位置越靠上部,二次梢的发生量和生长量越大。

The pear trees were tested to study the effects of different pruning methods on their growth in summer. The results showed that the di{ferent pruning methods had a certain influence on the tree height, stem height and stem diameter, but there was no significant difference among different pruning methods, the vegetative growth vigor of the spring shoot truncation （1/4） treatment was alleviated and the growth of secondary branches was maximum compared with CK, and the angle between spring shoot and main stem was minimum, the position of spring shoots on the parent shoot was on the upper and the quantity and growth of secondary branches was maximum in the spring shoot truncation （1/3） treatment.