种子是农业生产上特殊的生产资料。种子生产要按照原原种——原种——良种的程序进行。小麦、大豆、水稻等均属自交作物,因此在种子繁殖上不同于玉米等异交作物,有着特定的种子生产技术规程。小麦、大豆等自交作物的原原种为育种者的种子。它是生产原种和良种的主要来源。我国和各省种子法明文规定生产原原种必须采用 Seeds are special means of production in agricultural production. Seed production according to the original seed - seed - seed program. Wheat, soybeans, rice and the like are all self-crossed crops. Therefore, they differ in their seed multiplication from outcrossing crops such as corn and have specific technical rules for the production of seeds. Wheat, soybean and other self-pollinated original crop breeders seeds. It is the main source for the production of seeds and seeds. The seed law of our country and the provinces clearly stipulates that the original species of produce must be adopted