育种学是现代植物栽培实现改进的重要手段之一。因此,现时加快育种过程速度成为更突出的问题。不久前还认为育出谷类作物新品种需要12—14年,而品种更换周期20—30多年是完全正常的。作为农业生产最重要的手段的品种现代化的像这样的速度与我们时代的技术进步和社会变化的进程是不相称的。此外,育种工作的经济效率不仅表现在栽培获得新的 Breeding is one of the important means to achieve the improvement of modern plant cultivation. Therefore, at present, speeding up the breeding process has become a more prominent issue. Not long ago, it also took 12-14 years to breed new varieties of cereal crops. It is completely normal for the varieties to be replaced for a period of 20-30 years. The rate of modernization of varieties as the most important means of agricultural production is disproportionate to the progress of technology and the process of social change of our time. In addition, the economic efficiency of breeding work is not only reflected in the cultivation of new