The topic of “selection of high-protein, high-lysine transgenic corn inbred lines and cross combinations†chaired by Dr. Zhu Dengyun of China Agricultural University has completed the environmental release test in the safety evaluation system and will soon be applied to production. After graduating from Zhejiang University in 1984, Zhu Dengyun was assigned as a teacher at the former Jinhua Agricultural College. He was admitted to the China Agricultural University in 1990 to pursue a master's degree, a doctoral degree, and a post-doctoral degree. He then taught at a postgraduate level and served as a "high-protein, high-lysine genetically modified corn. The head of the research team for the selection and breeding of line and hybrid combinations. After seven years of painstaking research, a gene on potato pollen was transferred to corn, resulting in a 30% and 90% increase in lysine and protein content, respectively, compared to conventional corn. Zhu Dengyun said that under the support of the National High-Tech Research and Development Program and the National Special Fund for Genetic Research and Industrialization, the research group used genetic engineering methods to prepare a large number of cross combinations using transgenic inbred lines and conventional inbred lines to screen out comprehensive agronomy. 18 cross combinations with excellent traits. This is the first time in the world that transgenic high-quality corn inbred lines have been genetically engineered. In 2003, Zhu Dengyun bred genetically-modified maize seeds that had just been cultivated to stable quality, and sent them back to the former Jinhua Agricultural School (Changhua Vocational and Technical College of Biological Engineering) who had worked in the past. According to Prof. Hu Shengfu, Associate Professor of the Institute, the 10 species tested and planted per mu were more than 500 kg, which was more than 26% higher than the 400.7 kg per mu produced in Danyu 13 (the main product of Jinhua's main planting), and the whole growing period was 88 days. The hospital will conduct comparative tests and research on supporting cultivation techniques to screen out combinations suitable for Jinhua cultivation. Maize is a high-yielding food crop. China has more than 300 million mu of cultivated area. However, the nutritional quality of corn is relatively poor, and the content of protein and lysine is relatively low, accounting for only 8% and 0.27% of the dry weight of the seed. Therefore, high-quality lysine and other feed additives must be added to compound feeds to meet the needs of livestock and poultry growth and development. With the genetically modified corn processed feed, only a few minerals need to be added, and the cost per ton of feed can be reduced by at least 30%. It is understood that since the early 1960s scientists from various countries have been hoping to increase the lysine content of corn seeds through conventional breeding methods.