长白落叶松是长白山林区的乡土树种,也是我省更新,造林的主要树种之一,适应性强,生长迅速,木材用途广泛,深受群众欢迎。因此我省对如何提高落叶松种子经营管理水平,努力实现种子标准化问题,一直是很重视的。关于落叶松种子等级标准问题,中央林业部曾于1957年作过统一确定,此标准对我省种子经营管理水平的提高起到了应有的作用。由于工作发展的需要,我省又于1964年秋种子丰收年采收过程中根据历年生产实践经验,认真考虑本树种品质基础条件和种源分布,丰欠产 Changbai Larch is a native tree species in Changbai Mountain forest area and one of the main tree species for regeneration and afforestation in our province. Its adaptability, rapid growth and extensive use of wood are welcomed by the masses. Therefore, our province has always been very important about how to improve the management level of larch seeds and strive to standardize seeds. On the larch seed level standards, the Central Forestry Department made a unified determination in 1957, this standard on the province’s seed management level has played its due role. Due to the needs of the development of the work, our province again in the autumn of 1964 harvest of seeds in the harvest process based on years of production experience, careful consideration of the basic quality of the species and provenance distribution, abundance deficit