Breeding of New Sweet Potato Variety Fushu 806 with High Quality and High Yield for Edible Utilization and Processing

Fushu 806 was bred by the Crop Research Institute of Fujian Academy of Agricultural Sciences with Fushu 604 as the female parent and Guangshu 87, Fushu 90916, Fushu No.2, Longshu 710, Shengli No.100, Jinshu 14 as the male parent. This variety participated in the regional experiment of sweet potato in Fujian Province from 2020 to 2021, and the average yield of fresh tuber in the two years was 38 448.75 kg·hm^-2, which was 6.43% higher than that of the control group Guangshu 87. The dry matter yield of tuber was 10 135.35 kg·hm^-2, which was 11.74% higher than that of the control group Guangshu 87. The starch yield was 6 610.05 kg·hm^-2, which was 13.63% higher than that of the control group Guangshu 87. The dry matter rate was 29.35%, the starch content was 19.17%, the protein content of tuber was 0.78 μg·hg^-1, the soluble sugar content was 3.58%, and the carotenoid content was 248 μg·hg^-1. This variety was moderately resistant to fusarium wilt disease and moderately susceptible to sweet potato blast. The comprehensive evaluation of taste quality and appearance identification showed that the taste score was 82.6 points, which was 2.6 points higher than that of the control group Guangshu 87. The appearance score was 81.6 points, which was 1.4 points higher than that of the control group Guangshu 87, and the edible quality reached the level of special high-quality varieties, which was suitable for being used as the raw material of the steamed dried sweet potato products.