我国古代人民在驯养野生动物和培育栽培植物的过程中,通过人了选择、优生优育、杂交育种等方式,培育了大量农作物和家畜的优良品种,为提高动植物品质、增加动植物品种、满足生产生活需要作出了很大贡献。他们所积累的选种 In the process of domestication of wild animals and cultivation of cultivated plants, ancient people in our country have cultivated a large number of fine varieties of crops and livestock through human selection, prenatal and postnatal breeding, and hybrid breeding. In order to improve the quality of animals and plants and increase the variety of animals and plants, Production needs to make a great contribution. They have accumulated the selection