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为了选育杨树抗溃疡病速生新品种,我们以美洲黑杨一些无性系和欧美杨部分栽培品种为亲本,于1982年进行了人工杂交育种,获得了30多个组合苗木,经人工选择和接种鉴定,筛选出鲁克斯杨×山
In order to breed fast-growing new varieties of poplar anti-ulcer disease, we took some clones of Populus tomentosa and some poplar cultivars in Europe and America as parents and conducted artificial crossbreeding in 1982 to obtain more than 30 combinations of seedlings. After artificial selection and inoculation , Filtered out Lukes Yang × Hill