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主要阔叶树种如黄波罗、紫椴、山丁子、水曲柳、垂柳等都是我省造林、更新的重要树种,因此有无足够的、品质优良的种子,是保证造林、更新计划胜利完成的物质基础,而这几种树种又是我省乡土树种,在我省中、东部山区、半山区分布甚广,应充分的利用这一得天独厚的种源条件,积极的科学的进行采种,以满足我省造林、更新对种子的需要。一、采种前的准备工作 1.结实情况调查:为了合理组织采种,应予先进行种子结实丰、欠情况及予产量调查,调查应进行三次,即:花期踏查、果期调查、种子成熟采集前一个月的最后一次调查。
Major broad-leaved species such as Huangpoluo, Tilia amurensis, Dingcailia, Ash, weeping willows and other important afforestation, regeneration of important species in our province, so there is enough, good quality seeds, is to ensure afforestation, the completion of the update plan to complete Of the material basis, and these species are native species in our province, in our province, the eastern mountainous area, half-mountain area is widely distributed, should make full use of this unique provenance conditions, and actively carry out scientific research to seed Meet the afforestation in our province, to update the needs of the seeds. I. Preparations before Seed Seeding 1. Slump survey: In order to organize the seed collection reasonably, seed abundance and deficit in the seed should be investigated before the investigation. The investigation should be conducted three times, ie: flowering check, fruit check, seed maturity Collect the last survey of the previous month.