发芽率是水稻种子质量分级标准的重要指标。但是,由于种子休眠的影响和种子收购入库时间仓促,给及时作好发芽率检验,以确定种了等级带来了困难。虽然可以用剥去颖壳等办法打破种子休眠,但手工操作较烦,机械脱颖则易损伤胚部,因而大规模应用推广不易实行。近年来推广的四氮唑测定种子生活力的方法,虽已在实际中应用,但生活力不全等于发芽率,按生活力来确定种子等级似乎欠妥。那么,生活力与发芽率之间是否存在一种 Germination rate is an important index of rice seed quality grading standards. However, due to the impact of seed dormancy and rush time of seed purchase and storage, it is difficult to determine the grade of seed germination in time. Although you can strip the shell and other means to break the seed dormancy, but more annoying manual operation, machinery is easy to break the embryo, which is difficult to promote the application of large-scale implementation. In recent years, the method of measuring tetrazolium to determine the viability of seed has been applied in practice, but the incomplete viability is equal to the rate of germination. It seems that the determination of the seed level according to viability seems to be a defect. So, whether there is a difference between vitality and germination rate