一、品种来源该品种是由广东生物技术研究所１９８９年从国外引进的一个黑红薯新品种。二、其特点是１、外观优。薯块长筒型，单薯重３００～８００克，最大１０００克左右，结薯多而均匀，单株结薯４～８个。薯面紫黑光亮、美观。２、品质优。据美国农产品检测中心分析，营养? First, the source of varieties The variety is from Guangdong Institute of Biotechnology in 1989 introduced from abroad a new black sweet potato varieties. Second, its characteristic is 1, looks good. Tuber long tube type, a single potato weight 300 ~ 800 grams, the largest about 1000 grams, tuber more and uniform, tubers per plant 4 to 8. Purple and bright potato surface, beautiful. 2, excellent quality. According to the United States Agricultural Products Testing Center analysis, nutrition?