甘薯徐薯18是1972年从抗病多样性的母本新大紫回交短薯结薯早的父本52—45的有性杂交种子中选得,系号73—2518。1974—1975年参加复选、鉴定,1975—1977年间参加全地区试验的同时,得到山东泰安地区农科所协助,进行异地鉴定并加速繁殖,结果确认该品系完全可以取代已退化的胜利百号品种,正式命名为徐薯18。该品种先后在山东、江苏、北京、河南、安徽、湖北、湖南、四川等省市推广。1979年推广面积为370万亩,1980年扩大到700万 Sweet potato Xushu 18 was selected from the sexual hybrid seeds of 52-45, the male parent of the disease-resistant new female parent purple backcross short tuber in 1972, No. 73-2518. Participation in 1974-1975 Check, identification, 1975-1977 years to participate in the test throughout the region at the same time, by the Tai’an Prefecture, Shandong Agricultural Science Institute, to conduct remote identification and speed propagation, the results confirmed that the strain can replace the degenerated Victory 100 varieties, officially named Xu potato 18. The variety has in Shandong, Jiangsu, Beijing, Henan, Anhui, Hubei, Hunan, Sichuan and other provinces and cities to promote. In 1979, the promotion area was 3.7 million mu, expanding to 7 million in 1980