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五十年代以前,我省种植的小麦品种大多是名目繁多、产量较低的农家品种。虽然如此,但在品种间存在着遗传差异大,遗传背景复杂等的多样化,因此很少受到病害的影响。建国后,我省小麦品种经过五次大更换,每次更换都使小麦产量有明显的提高,单产由40公斤增至目前的200多公斤,但是每次更换也使种植小麦品种的数量大大减少,
Before the 1950s, most of the wheat cultivars grown in our province were farmer varieties with a large variety and low yields. Nevertheless, there is a large variety of genetic differences between varieties, the genetic background is complex and so diverse, so little affected by the disease. After the founding of the People’s Republic of China, the wheat varieties in our province have undergone five major changes and each time the wheat yield has been significantly increased, from 40 kg to more than 200 kg at present. However, the replacement of wheat varieties greatly reduces the number of wheat cultivars ,