广西玉米研究所1984年用桂单16号为母本、自交系M_9为父本育成的玉米三交种“桂三2号”,籽粒为黄色半硬粒型,食用品质好,籽粒赖氨酸含量0.397％,接近高赖氨酸标准,属优质玉米。是抗大小斑病、抗倒力强的高产稳产新品种,1989年10月通过自治区审定。试验和试种表现1986—1987年参加广西玉米良种区试,两年四造平均亩产305公斤,比对照南校8号增产5.2％,早晚造产量差异不大。1988年分别在隆安、平果、扶绥等县中试共26.6亩,最高亩产452.3 Guangxi Institute of Maize Gui Dan 16 as the female parent in 1984, maize inbred line M_9 as the male parent breed corn “Gui San 2”, the grain is yellow semi-hard grain type, good food quality, grain lysine 0.397% content, close to high lysine standards, is a high-quality corn. Is resistant to the size of spot disease, anti-dumping strong high yield stable new varieties, in October 1989 through the Autonomous Region validation. Tests and test performance 1986-1987 years to participate in Guangxi Maize variety test, two-year average of 305 kg per mu, compared with the South No. 8 increase of 5.2%, yield no significant difference between morning and evening. In 1988, respectively, in Long’an, Pingguo, Fusui and other counties in a total trial of 26.6 mu, the highest yield 452.3