根修剪和干刻伤对苹果结果幼树的影响本试验以生长旺盛的’ＳｍｏｏｔｈｅｅＧｏｌｄｅｎＤｉｎ－ＳＳ。ＳＳ‘、帝国、乔纳金和嘎拉苹果品种（砧木为Ｍ．７Ａ）为试材，探讨了在密植条件下进行根机械修剪和于刻伤对控制其生长的作用。结果表明，上述两种措施无论单用或结... Effects of Root Pruning and Dry Engraving on Saplings of Apple Trees In this experiment, the vigorous ’SmootheeGolden Din-SS’ was grown. SS, Empire, Jonathan and Gala apple cultivars (rootstock M.7A) were used as experimental materials to explore the effect of root pruning under close planting conditions on the control of their growth. The results show that the above two measures either alone or ...