小麦的品种资源比较丰富,我国现有小麦品种近2万个。但生产上使用的品种遗传来源比较单一。据统计,南大2419、欧柔、阿夫、阿勃四个品种及其派生品种的种植面积占我国小麦总面积的一半以上。我国目前生产上使用的小麦品种,其抗病源、丰产源 Wheat species rich in resources, China’s existing nearly 20,000 varieties of wheat. However, the genetic sources of varieties used in production are relatively simple. According to statistics, the planting area of ​​four varieties of Nanda 2419, Ou Rou, Afu, Abreu and their derivative varieties account for more than half of the total area of ​​China’s wheat. At present, the wheat varieties used in our country are source of disease resistance and abundant yield