种子发芽率是确定播种量的重要依据之一。测定种子发芽率的方法通常有两种:一是在盛有吸水纸的发芽皿中进行,另一种是在发芽床上进行。这些方法都能较真实地反映种子发芽的情况,尤其是后一种方法更接近大田条件,效果更佳。但是,测定种子发芽率的方法所需的时间较长,一般为7天,多的要达2周以上;其次,还要有一定恒温条件,这对在购买、调运或贮藏牧草种子时进行种子品质鉴定,无疑是个问题。为此,我们在1981年下半年运用测定部分农作物种子生活力的方法对牧 Seed germination rate is one of the important basis for determining the sowing amount. There are usually two ways to determine the seed germination rate: one is in a germinating dish containing absorbent paper and the other is in a germinating bed. These methods can more accurately reflect the seed germination, especially the latter approach is closer to the field conditions, the effect is better. However, the method of determining the germination rate of seeds requires a long time, usually 7 days, more than 2 weeks to achieve more; secondly, there must be some constant temperature conditions, which is the seed when buying, transferring or storing herbage seeds Quality identification, no doubt is a problem. For this reason, in the second half of 1981, we applied the method of measuring the seed viability of some crops to grazing