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杨树引种是我国杨树遗传改良的重要途径之一。为了改良我国现有杨树乡土树种,很需要创造一批早期速生且材质好、抗性强的优良无性系。为此,1981年中国林业科学研究院林研所从国外引进阿万佐杨(Populus×euramericana‘Luisa Avanzo’)和西玛杨(P.×euramericana
Introduction of poplar is one of the important ways of genetic improvement of poplar in China. In order to improve the poplar native tree species in our country, it is necessary to create a group of fine clones which are quick-growing in early period and good in material and strong in resistance. Therefore, in 1981, the Institute of Forestry of China Academy of Forestry introduced Populus × euramericana ’Luisa Avanzo’ and P. × euramericana