种子是活的有机体,是目前保存种质资源“基因库”中的重要材料。这些种质,在长期自然选择和适应的过程中,在特定的环境条件下,形成了各自遗传性的生理特性。依据种子的特性,可把热带植物种子分为耐于藏和不耐干藏两大类,前者种子寿命较长,后者多属“短命”种子。 Seeds are living organisms and are important materials in the current “gene pool” of germplasm resources. These germplasm, in the long-term natural selection and adaptation process, under specific environmental conditions, formed their own genetic physiological characteristics. According to the characteristics of the seeds, the tropical plant seeds can be divided into two categories, which are resistant to drought and to dry. The former has a longer life expectancy and the latter is mostly a “short-lived” seed.