种子,是培育壮苗的基础.所谓良种,就是表明这个种子携带优良的遗传基因,可是,要使这些基因能在下一代充分表现,还必须依靠高种子的活力.高活力的种子萌芽迅速,发芽率高,抗逆性强.因此,在生产上应重视高活力种子的培育.那么,怎样才能培育出高活力的优质种子呢?在遗传品质的前提下,种子活力的高低是由种子的发育状态决定的.在种子发育时期,环境条 Seed is the basis for nurturing seedlings, so-called seed is to show that this seed carries a good genetic, but to make these genes fully demonstrated in the next generation, but also must rely on the high seed vigor.High vigor seed germination rapidly, Germination rate is high, strong resistance.Therefore, in the production should pay attention to the cultivation of high-vigor seeds.Then, how to cultivate high-energy seeds? Under the premise of genetic quality, the level of seed vigor is the seed Determined by the state of development during the seed development period, the environmental bar