在果树栽培中,有时会出现接穗比砧木加粗速度快,幼树基部接口上粗下细的现象,这种树俗称“小脚果树”,简称“小脚树”。主要是砧木生长势弱,接穗生长势强,砧木、接穗亲合力较差造成的。“小脚树”的树势弱,生长量小,树冠扩大缓慢。成形晚,抗性差,不利于幼树的生长和结果,影响早期产量,为此,我们在本校实习基地果园中,对“小脚树”进行了改造,获得了良好效果。 In the fruit tree cultivation, scion sometimes appear faster than the rootstocks thickening, saplings at the base of the interface coarse and thin phenomenon, this tree is commonly known as “small fruit tree”, referred to as “small foot tree.” The main growth stock is weak, scion growth potential, rootstocks, scions poor affinity caused. The tree of “small foot tree” is weak, the growth is small, and the canopy expands slowly. Forming late, the resistance is poor, is not conducive to the growth and results of saplings, affecting the early yield, therefore, we in the base of the school orchard, the “small foot tree” has been transformed, and achieved good results.