‘Luozishu No.1’ is a new edible purple sweet potato variety developed by crossing‘ yan337’ as
female parent and‘ jishu98’ as male parent．Its root tuber is of spindle shape．There are 3-4 tubers per plant with
concentrate tuberization． Its commercial tuber rate is over 90%．The prepared root has good taste．It is highly
resistant to Fusarium wilt and root rot，medium resistant to black rot．Generally its yield of fresh root is 22.5-
34.5 t·hm^-2 and that of dried root is 6.00-9.75 t·hm^-2．The average anthocyanin content is 134.9 mg·kg^-1．It
is suitable to be planted in Henan，Hebei，Shaanxi，Shanxi Provinces，etc．in spring and summer．It has been
demonstrated and extended to 1 300 hm².