Welcome to Chinese Journal of Tropical Crops,

Chinese Journal of Tropical Crops ›› 2019, Vol. 40 ›› Issue (8): 1482-1487.DOI: 10.3969/j.issn.1000-2561.2019.08.004

• Crop Culture and Nutrition, Genetic Breeding • Previous Articles     Next Articles

Breeding of New Purple Sweet Potato Variety ‘Puzishu 3’ and Identification of Its Characteristics

CUI Jichao,YU Jinjiang,ZHONG Yi(),ZHONG Yuyang,ZHENG Jianyang   

  1. Putian Institute of Agricultural Sciences, Putian, Fujian 351144, China
  • Received:2018-09-27 Revised:2019-04-15 Online:2019-08-25 Published:2019-08-20
  • Contact: ZHONG Yi


A new purple sweet potato variety Puzishu 3 was bred from the hybrid offspring of Riqing 1 and Taiyin 2, with high stable yield and good eating quality. It was approved as a new national sweet potato variety in 2015. The morphological characteristics, quality characteristics, disease resistance, productivity and physiological characteristics of yield formation of the variety were studied. The results indicated that Puzishu 3 had a growth period more than 150 days. Based on regional tests in Fujian Province, the fresh root yield, dry matter yield and dry matter content increased by 7.51%, 14.35% over the control variety Ningzishu 1. The taste score of Puzishu 3 was 75.4 (70 for CK). Root quality appraisal showed that the contents of crude protein and soluble sugars in the root of Puzishu 3 were higher than that of CK, while reducing sugars was lower than that of CK. Puzishu 3 showed moderate resistance to sweet potato Fusarium wilt, middle susceptible to sweet potato Pseudomonas solanacearum Ⅰ and susceptible to sweet potato Pseudomonas solanacearum Ⅱ.

Key words: purple sweet potato, variety Puzishu 3, breeding, characteristics

CLC Number: