研究紫花苜蓿种子的寿命,是很好的开展利用的基础。种子发芽力是表达寿命的重要指标。本研究共搜集105份材料,经多年测定,认为紫花苜蓿种子是属于中命种子,在常温条件下,第1年发芽率偏低,从第2年到第15年间发芽率保持在80～90%之间,第15年后显著下降。因此,紫花苜蓿种子可利用15年,15年以后要迅速繁殖更新。 Studying the longevity of alfalfa seeds is a good basis for the utilization. Seed germination power is an important indicator of life expectancy. In this study, a total of 105 materials were collected. After many years of determination, the alfalfa seeds were considered as the seeds of life-form. Under normal temperature conditions, the germination rate in the first year was low, and the germination rate was maintained at 80-90 %, After 15 years significantly decreased. Therefore, alfalfa seeds can be used for 15 years, 15 years later to breed quickly updated.