Breeding an Erect, Compact, Leaf-vegetableSweet Potato, Fucaishu No. 22

A new leaf-vegetable sweetpotato cultivar,Fucaishu No.22, was bred by crossing the female parent,Quanshu 830, with the male parents,Tainong 71, Fucaishu 18, Fushu 7-6, and Ziyeshu,by open-pollination.The new cultivar was approved by the National Crop Variety Identification Committee in 2016.The national regional and production trials showed that the yield on the stem-tips of Fucaishu No. 22 was 37 846.8 kg·hm^-2, which exceeded that of Fushu 7-6 by 12.97%, and that a taste evaluation score of 73.55, which was superior to CK, was received for the vegetable. Fucaishu No. 22 had the desirable agronomic characteristics, such as a compact plant type, short and upright stems, high yield, appealingeating quality, and high resistances to stem nematode and fusarium wilt. In addition, it could potentially be cultivated formechanical harvesting.