我国大兴安岭地区气候寒冷,落叶松大多用种子繁殖。为了扩大繁殖系数,加快育苗速度,1989年开始了扦插育苗试验,仅1991年就为生产提供苗木1万多株。其方法如下:选用兴安落叶松2年生母树上的休眠枝或嫩枝,用ABT生根粉1号或IBA处理插穗,在塑料棚或全光照下的沙质插床上扦插,平均生根率可达90%以上。 Daxinganling cold weather in our region, most of the larch seed breeding. In order to expand breeding coefficient and speed up seedling raising, cuttage seedling experiment was started in 1989. In 1991, more than 10,000 seedlings were produced for production. The method is as follows: The dormant branches or twigs on the 2-year-old mother tree of the Larix gmelinii were selected and the cuttings were treated with ABT rooting powder 1 or IBA and the cuttings were cut in the sandy shed under the plastic shed or full light with the average rooting rate of 90 %the above.