林木种子采收后,除了有些树种,例如杨、柳、桑、榆等,可以随采随播之外,大多数树种都要经过冬季的贮藏至翌年春季才播种。此外,不少树种有种子大、小年现象,在种子丰产的大年就应贮藏一部分种子,以供小年歉收时育苗和造林的需要。近年来,随着林业良种化的要求,营建林木种子园以生产遗传品质优良的种子,有了较大的发展,为了调节种子 After harvesting tree seeds, except for some tree species, such as poplar, willow, mulberry, elm, etc., most of the tree species can be stored in winter until the following spring before sowing. In addition, many tree species have seeds and small-year phenomena. Some seeds should be stored during the first year of high-yielding seeds for the needs of young nursery plants and afforestation. In recent years, with the requirements of forestry improvement, the construction of tree seed orchard to produce high quality seeds of genetic quality, with greater development, in order to adjust the seeds