为什么种子寿命有长短农作物种子寿命长和短的主要因素可分为内因和外因两个方面，了解这些影响因素，对贮藏种子具有重要的现实意义。一内因。种子寿命的长短，主要取决于种子本身的状况，如种子生来就很衰弱，外界条件再好，其寿命也不会长。种子本身的状况包括：（１）... Why seed life has the main crop seed life long and short can be divided into two major factors, internal and external factors, to understand these factors, the storage of seeds of great practical significance. An internal cause. The length of the seed life, mainly depends on the status of the seed itself, such as the seeds born very weak, no matter how good the external conditions, its life expectancy will not be long. The status of the seed itself includes: (1) ...