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“75—38”是湖南农科院作物所1974年以华北48为母本,与红薯品种蕹菜种杂交选育而成。1976—1978年所内小区试验,亩产5016—5236斤。1979-1981年,参加全省红薯10个点的区域试验,所内3年平均亩产 6110.3斤,比广东白皮增产24.3%,变量分 析增产达极显著水平;全省10个点3年平 均亩
“75-38” is a crop of Hunan Academy of Agricultural Sciences in 1974 to North 48 as the female parent, and sweet potato varieties of Brassicaceae breed breeding. From 1976 to 1978 within the district test, 5016-5236 kg per mu. 1979-1981, to participate in the province’s sweet potato 10 points in the regional test, the average yield per mu within 3 years 6,110.3 kg, 24.3% increase than the Guangdong white peel, variable analysis increased production reached a very significant level; the province 10 points 3-year average mu