（1Quzhou Academy of Agricultural and Forestry Sciences，Quzhou 324000，Zhejiang，China；2Zhejiang Academy of Agricultural Sciences，Hangzhou 310000，Zhejiang，China）
Abstract：Abstract：‘Qushu No.6’is a new orange-fl eshed sweet potato variety bred by crossing‘Yanshu No.5’as
female parent and‘Zheshu 70’as male parent．It is of semi-erect type with short vines and average of 5.3 basal branches．The root type is spindle-shaped with purplish-red peel and orange fl esh．The single plant can beat 5-7 roots．The average proportion of large and middle roots is 91.79%，dry matter rate is 30.65%，starch rate is 18.24%，protein content is 1.46%，soluble sugar content is 3.15%，and β-carotene content is 590 μg ·kg-1．It has soft and sweet taste，and resistant to storage．It is resistant to stem-nematode，and mediumresistant to Fusarium wilt．The fresh root yield is about 30 t · hm-2，and dried root yield is about 9.75 t · hm-2．It is suitable for spring and summer potato planting in Zhejiang Province and ecologically similar areas．
