Abstract:

Nine sweet potato varieties with high starch content were introduced and compared, with the aim of selecting new sweet potato varieties suitable for growing in Guangxi. By randomized block design，the plant character, the tuber-root character, the fresh tuber-root yield and the starch content in tuber-root of nine varieties were evaluated. The results showed that, JSP-4 and ‘Xushu 22’ had the higher starch yield, which were 6698.42 kg/hm2 and 5685.96 kg/hm2, respectively, increasing by 43.54% and 21.84% compared with control. The both would be popularized as bio-energy type sweet potato varieties with high starch content in Guangxi.