在有些地区和单位的品种园或生产园内,存在着品种混杂、良莠不齐的问题,对一些不宜保留的品种怎样更换是一需要解决的问题。经反复试验,我们采用“绿枝贴接法”进行品种更换,取得较好的效果,其具体做法是:剪取半木质化的优良品种新梢,长5～6厘米左右,有一个芽眼,在着生芽眼的对面,削一长3厘米的 In some areas and units of the variety of parks or production parks, there are mixed varieties, mixed, how to replace some of the varieties should not be retained is a problem to be solved. After repeated tests, we use the “green stick affixed law” for species change, and achieved good results, the specific approach is: cut the fine lint of half-lint shoots, about 5 to 6 cm long, with a bud eye, Opposite the students eye, cut a 3 cm long