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杜仲是我国特有的重要经济树种。引种到天津后,栽植成活率达85％;种子繁殖时须经湿砂层积处理,发芽率可达90％,苗期生长越冬正常。
Eucommia is a unique economic species of our country. After introduced to Tianjin, planting survival rate of 85%; seed propagation to be wet sand stratification, germination rate of up to 90%, normal winter seedling growth.