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１９７３年以来．铁岭地区由各地引进１６０个杨树新品种，建立了对比试验林，从中评选出美×五５９杨，表现出极大的速生性。该杨树适应性强、材质优良、耐寒冷，只要造林得法，集约经营，１６年生每公顷可生产木材２００ｍ￣３，材积生长超过对照种加杨３０％～１７８％，超过Ｉ－２１４杨一倍。采用１年生根造林．是该品种的关键造林技术。该杨树不但适合铁岭地区的自然条件，也可在相同条件的外省市引种推广造林。
Since 1973. Tieling region introduced from all over 160 new poplar varieties, the establishment of a comparative test forest, from which the United States elected × Wu 59 Yang, showing great fast-growing nature. The Poplar tree adaptability, good material, cold-resistant, as long as afforestation law, intensive management, 16-year-hectare per hectare of wood can produce 200m ~ 3, volume growth over the control plus Yang 30% ~ 178%, more than I- Times Adopt one-year root afforestation. Is the variety of key afforestation technology. The poplar not only suitable for the natural conditions of Tieling area, but also in other provinces and cities introduced the same conditions to promote afforestation.