在20世纪80年代初期,我国玉米育种创造了世界玉米育种史上的奇迹,从早期的研发和推广杂交种,到后来攻克了玉米抗病育种技术的难关,以及从双交种过渡到更先进的单交种选育技术,达到了世界先进水平。但是进入20世纪80年代后期,我国玉米育种技术进入缓慢发展阶段,没有突破性进展,只是在抗病 In the early 1980s, China’s maize breeding created a miracle in the world history of maize breeding. From the early days of research and development and promotion of hybrids to the later maladjustment of maize disease-resistant breeding techniques and the transition from double crossbreed to more advanced Single cross breeding technology, reached the world advanced level. However, into the late 1980s, China’s maize breeding technology entered a slow stage of development, there is no breakthrough, but in disease resistance