珙桐,又名“鸽子树”,为我国著名珍稀树种,且仅分布于湖北、四川、贵州、云南等省海拔1300—1500米地段的山林中。一般育苗采用种子繁殖,但成本较高,若在珙桐分布区利用当地资源,采用高压法育苗,可迅速育成壮苗。具体操作如下:1.药液配制:将50%退菌特可湿性粉剂和ABT1号生根粉, Davidia involucrata, also known as “pigeon tree”, is a famous rare species in our country and is only distributed in mountain forests of 1300-1500 meters above sea level in Hubei, Sichuan, Guizhou and Yunnan provinces. Breeding seedlings generally use seed breeding, but the higher the cost, if the use of local resources in the Davidia distribution area, the use of high-pressure method nursery, can quickly grow strong seedlings. Specific operations are as follows: 1 liquid preparation: 50% of the detoxification WP and ABT1 rooting powder,