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杨树是我国主要速生用材树种之一。为避免杨树品种的单一化,提供生产中需要的多基因型优良栽培群体,克服沙兰杨材质松软以及69柏、72杨造林成活率低的缺点。我们于1981年从中国林科院引入阿万佐杨(P、X euramericalia·Luisa A Vanzo)和西玛杨(P·X euramericana·Cima)进行育苗、造林试验。经五年观察,阿万佐杨和西玛杨,具有速生、高抗、易成活、主
Poplar is one of the main fast-growing timber species in our country. In order to avoid the popularization of poplar varieties and provide the good multi-genotype cultivated populations needed in production, it overcomes the shortcoming of softening of Sallaia deltoides and low survival rate of 69 and 72 poplar afforestation. In 1981, we introduced P, X euramericalia Luisa A Vanzo and P X euramericana Cima from the Chinese Academy of Forestry to conduct seedling and afforestation experiments. After five years of observation, Avanzo Yang and Sima Yang, with fast-growing, high resistance, easy to survive, the Lord