种子发芽率=（发芽种子 粒数/供试种子粒数）×100% 如100粒菊花种子，发芽终止期15中有95粒种子发芽，则种子的发芽率为95%。种子发芽率越高，说明种子饱满，整齐度高，种胚发育良好，种子生命力高。种子发芽可在发芽箱内进行。
利用OTC - 1型开顶式气室进行了CO2浓度对植物种子发芽率、发芽势以及叶片形态结构的影响试验研究。
The experimental study on the impacts of CO2 concentration on plant seed germination percentage, germination energy and leaf structure is conducted by using OTC-1 Open Top Chambers.
进一步利用浸提液进行生菜、番茄、黄瓜等多种蔬菜种子的发芽试验发现发酵不充分的芦苇末基质浸提液显著抑制番茄和生菜的发芽率和胚根的伸长。
Results in the germination tests of several vegetable seeds showed that germination index of lettuce and tomato seeds were significantly inhibited by the insufficient substrate water extract.
结果表明，玉米种子的发芽势、发芽率、发芽指数和活力指数均随老化时间的延长而降低；
Activity of POD, which was positively correlated with virous vigor indexes of maize seeds, was also declined with aging time.
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