种子是农业生产的基础,它不仅是特殊的、不可替代的农业生产资料,也是各项农业技术的载体,是农业可持续发展的重要因素,因此种子在世界上已形成一种产业。从新品种的选育、区试、审定到生产、田检、收购、精选、分级、包衣、包装、检验、认证、贮备、营销以及良种良法的售后服务,已成为一个完整的产业体系。 Seeds are the basis of agricultural production. They are not only special and irreplaceable sources of agricultural means of production but also carriers of various agricultural technologies. They are also important factors for the sustainable development of agriculture. As a result, seeds have become an industry in the world. From the breeding of new varieties, the district trial, validation to the production, Tian Zhen, acquisition, selection, grading, coating, packaging, testing, certification, storage, marketing and good seed good service after-sales service, has become a complete industrial system .