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为选择适合本地栽培的杨树优良品种，１９８３年与中国林科院林研所合作，从黑龙江、吉林、辽宁、内蒙古、北京５省（市）引进３９个杨树优良品种，以本地主栽品种山海关杨作对照，进行杨树引种试验研究。经过１４ａ的造林观测和统计分析，选出了９个生长快、干形直、抗性强的杨树优良品种。其中Ｉ－４５／５１和德杂×北京１号的材积生长量分别为山海关杨的１６８％和１６６％，在河北省东北部平原区极具推广价值。
In order to select the best varieties of poplar suitable for local cultivation, we cooperated with Lin Institute of Chinese Academy of Forestry in 1983 to introduce 39 poplar varieties from 5 provinces (cities) in Heilongjiang, Jilin, Liaoning, Inner Mongolia and Beijing. Variety Shanhaiguan Yang as a control, the introduction of poplar pilot study. After 14a afforestation observation and statistical analysis, 9 poplar varieties with fast growth, dry shape and strong resistance were selected. The volume growth of I-45/51 and Deza × Beijing No.1 was 168% and 166% respectively of that of Shanhaiguan Yang, which is of great promotion value in the plains area of northeastern Hebei.