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该研究遵循严格的育种程序,历时10年,通过人工授粉杂交,从近万株杂种苗中经过苗期选择及无性系比较测定与选择、选育出两个欧美杨新品种。该品种成活率高,较耐干旱瘠薄,生长期比原推广种沙兰杨长15—30d,主干通直圆满、顶端优势强,分枝角度小、侧枝细而多,生长快,材积超过沙兰杨30%以上,超过最新引进种露伊莎杨10%以上,而且材质优于沙兰杨和露伊莎杨,抗病虫能力较强。适合在我省中、北部平原地区推广栽植。
The study followed a rigorous breeding program and lasted for 10 years. Two new poplar cultivars from Europe and the United States were bred by artificial pollination, seedling selection from nearly 10,000 hybrid seedlings, and comparison and selection of clones. The variety survival rate is higher, more drought-resistant barren, growth period than the original promotion of Sallans long 15-30d, the trunk straight round, the top edge of strong, small branches angle, side branches thin and more, grow faster, volume than sand Poplar more than 30%, more than 10% of the latest introduction of Lusha Yang species, and the material is superior to Salmonella and Lu Yisha, strong resistance to pests and diseases. Suitable in the province, the northern plains promote planting.