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Chinese Agricultural Science Bulletin ›› 2023, Vol. 39 ›› Issue (8): 1-6.doi: 10.11924/j.issn.1000-6850.casb2022-0264

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Research Progress of Sweet Potato with High Light Efficiency and Weak Light Tolerance

ZHANG Xiaohong()   

  1. Fuzhou Institute of Agricultural Sciences, Fuzhou 350018
  • Received:2022-04-07 Revised:2022-06-07 Online:2023-03-15 Published:2023-03-14

Abstract:

This paper summarized the research progress of high light efficiency and weak light tolerance sweet potato at home and abroad, in order to provide theoretical guidance for the breeding of high light efficiency and weak light tolerance sweet potato varieties. This paper elaborated from four aspects: (1) characteristics of germplasm with high light efficiency and weak light tolerance; (2) the effects of low light on agronomic characteristics, photosynthetic characteristics, stress enzyme activity and osmotic regulators, root yield and quality of sweet potato; (3) research progress of germplasm screening of high light efficiency sweet potato and evaluation methods of shade tolerance of sweet potato varieties; (4) research progress of sweet potato breeding with high light efficiency and weak light tolerance. It also looked forward to the future research directions, and suggested that scientific and technological workers should focus on the breeding of sweet potato varieties with high light efficiency and weak light tolerance, formulate breeding objectives and improve breeding methods, so as to meet the needs of mechanization and high yield of modern sweet potato industry.

Key words: sweet potato, high light efficiency, weak light, shade tolerance, breeding