不同品种具有不同的种子活力。同一品种在不同的生态环境和栽培条件下,也会形成活力不同的种子。选用种子活力高的品种,并在相适应的生态环境和栽培条件下繁育,才能获得高活力的种子,以保证出苗良好、生长正常而获得高产。目前,在种子生产上通常用种子发芽率作为确定种子质量的一项指标,并作为 Different breeds have different seed vigor. The same species in different ecological environment and cultivation conditions, but also the formation of different vitality of seeds. Selection of high seed vigor varieties, and adapt to the ecological environment and cultivation conditions breeding, in order to obtain high-vigor seeds, in order to ensure the emergence of good, normal growth and access to high yield. At present, seed germination is often used as an indicator of seed quality in seed production and as a