紫椴(Tilia amurensis Rupr)系椴树科阔叶树种。它的材质优良,木材用途广,树皮为纤维原料,深受广大人民群众喜爱。由于紫椴种子的种皮不易透水,休眠期又较长,给种子育苗带来困难。虽然可以萌芽更新,但是次生林的蓄积量一般都不太高。其它无性繁殖方法技术上又不过关,暂不能做为育苗措施加以应用。为尽快地发展椴树,需要解决育苗的一些关键性技术措施。 Tilia amurensis Rupr is a linden tree species. Its good material, wide use of wood, bark fiber raw materials, loved by the masses. As the seed coat of Tilia amurensis is not pervious to water, the dormancy period is longer, which makes it difficult for the seedling to grow. Although it can be sprouted and renewed, the volume of secondary forest is generally not too high. Other asexual reproduction techniques are not cross-border technology, temporarily can not be used as nursery measures to be applied. In order to develop lime tree as soon as possible, some key technical measures need to be solved.