目前,生产上应用和准备推广的地瓜良种如下: 辽薯224:由南瑞苕和农林四号杂交后代中选出,长蔓型。顶叶绿色,叶脉紫色,叶略呈三角浅裂。茎紫褐色。薯块纺锤形,结薯集中、整齐,薯皮红色,熟肉浅黄色,味甜适口,为优良食用种。晒干率32～35％,萌芽性好。抗黑斑病和软腐病能力较强。比胜利百号增产10～15％。适于肥沃土壤栽植。 At present, the sweet potato varieties used for production and promotion are as follows: Potato 224: selected from the crossbreeds of Nourishui and Nonglin IV, with long vine type. Top green leaves, veins purple, slightly triangular lobes. Stem purple brown. Tuber spindles, tubers focus, neat, sweet potato red, cooked meat, light yellow, sweet palatability, for the edible species. Drying rate of 32 to 35%, good budding. Strong resistance to black spot and soft rot. 100% increase than the victory 10 to 15%. Suitable for fertile soil cultivation.