甘薯是无性繁殖的作物,因而人们对甘薯种子贮藏不大注意或很少研究。近年来,国内外对甘薯种质的收集、鉴定和保存的兴趣日益增加。因此,在拟订甘薯遗传资源保存计划时,必须具有关于贮藏种子的生活力方面的资料。每一株甘薯实生苗与其它实生苗之间在遗传上是不同的,而且同一亲本的实生苗,它们之间的变异也很大。这是因为该种(2n=90)复杂的 Sweet potato is asexual reproduction of crops, so people have little or no attention on the storage of sweet potato seeds. In recent years, interest in the collection, identification and preservation of sweet potato germplasm at home and abroad has been increasing. Therefore, there is a need to have information on the viability of stored seeds when formulating a conservation plan for sweet potato genetic resources. Each sweet potato seedling is genetically different from the other seedlings, and the seedlings of the same parent have a large variation among them. This is because the species (2n = 90) is complicated