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红松是我国东北地区优良的用材林、食品林树种,红松种子种皮厚、坚硬,有一层蜡质,不易透水透气,种皮内含有单宁,其他部位含有脱落酸等抑制物,这些影响了红松种子的快速发芽,使红松种子长期处于休眠状态,要解除红松种子的长期休眠状态,在自然条件下,种子成熟后要经过冬季——夏季——冬季的埋藏,在第三年春季取出才能播种。近几年,由于红松种子供不应求,市场价格高,种子库没有红松种子的库存,不能使用传统的越冬埋藏法处理红松种子。为了更好地培育红松苗木,从2003年开始至今,黑龙江省鹤北林业局使用当年新采的红松种子进行变温催芽处理。用这种方法处理后的红松种子,播种后3～5天就出土,7天左右全部出齐,每年的出苗率均达90%以上。
Pinus koraiensis is an excellent timber forest in northeastern China. It is a kind of food tree species. The seeds of Pinus koraiensis seeds are thick and hard, with a layer of waxy, impermeable and breathable. The seed coat contains tannin and other parts contain abscisic acid and other inhibitors. The rapid germination of Korean pine seeds so that the Korean pine seeds long dormant, to lift the long-term dormancy of Korean pine seeds, under natural conditions, the seeds go through the winter - summer - winter buried in the third Remove the spring to sow. In recent years, due to the short supply of korean pine seeds and the high market price, the seed bank does not have the stocks of korean pine seeds, and the traditional overwintering burial method can not be used to process korean pine seeds. In order to better nurture the red pine seedlings, since 2003 so far, Heilongjiang Province, Forestry Bureau of Heilongjiang use of the new mining of pine seed for temperature sprout treatment. Processed with this method after the Korean pine seeds, sowing 3 to 5 days unearthed, all about 7 days together, the annual emergence rate of more than 90%.