1971年河南农林科学院作物所用24-4作母本,郑州红为父本杂交,系号1228-1.经四年试验,三年示范,表现高产、稳产、抗根腐病,78年重点繁殖推广,79年定名。一、产量表现:省院四年夏薯试验,平均鲜薯亩产4577斤,较胜利百号增产55.3%,薯干亩产1256斤,增产42.4%,晒干率26.6%,高0.5%。1977年全省14处区域试验,平均亩产鲜薯4920斤, In 1971 Henan Academy of Agriculture and Forestry crop 24-4 as the female parent, Zhengzhou red for the male parent, Department No. 1228-1. After four years of experiments, three years of demonstration, showing high yield, stable yield, resistance to root rot, 78 years of key breeding Promotion, 79 years naming. First, the yield performance: the provincial hospital four years of sweet potato test, an average of 4577 pounds of fresh mu per mu, an increase of 55.3% over Shengli Hundred, 1256 pounds per mu of potato dry, yield 42.4%, sun drying rate of 26.6%, 0.5% higher. In 1977, the province’s 14 regional trials, the average yield of fresh potato 4920 kg,