How to solve the problem of homogenization of varieties? In 2019, on rice and corn, the number of DNA sites was increased from 2 to 4. The purpose is to solve the problem of imitative breeding and homogenization, solve the problem of farmers purchasing seeds, and disorder the enterprise. To solve the problem of competition, encourage original innovation, encourage enterprises and breeders to cultivate breakthrough varieties, and truly solve the bottleneck problem of modern agricultural development. We hope that enterprises and breeders will actively transform. On March 31, at the China Seed Conference, Wu Xiaoling, deputy director of the Agricultural and Rural Department's Seed Industry Management Department, made the above statement when making a special report on the latest management of the seed industry.