论文部分内容阅读
实现林木种子标准化,能够促进林木种子经营水平和林木种子品质的提高。而净度则是种子品质的重要指标之一,在一批种子中纯净种子的数量越多,种子品质则越高。关于种子净度的标准,我国沿用的标准和国际规程标准有若干不同。(1)按《国际种子检验规程》规定的检验净度的方法,将瘦小的、皱缩的、未成熟的和发芽的种子都算为纯洁的种子。(2)按照我国《林木种子品质检验技术规程》草案规定的检验方法,把瘦小的、小于纯洁种子二分之一的种子,皱缩的或未成熟的显然不能发芽的,在处理时压坏、切坏的、损伤
The standardization of forest seed can promote the management of tree seed and the improvement of tree seed quality. Clarity, on the other hand, is one of the important indicators of seed quality. The greater the number of pure seeds in a batch of seeds, the higher the seed quality. About the standard of seed purity, there are some differences between the standards adopted in our country and the standards of international regulations. (1) According to the “International Seed Inspection Regulations” to test the clarity of the method, the thin, shrivered, immature and germinated seeds are counted as pure seeds. (2) According to the inspection method stipulated in the draft of “Technical Rules for Testing Seed Quality of Forest Trees” in our country, the seeds which are small and less than half of the pure seeds, obviously shrink or immature, can not germinate and are crushed during treatment , Cut bad, damage