Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2022, Vol. 38 ›› Issue (31): 38-42.doi: 10.11924/j.issn.1000-6850.casb2020-0556

Special Issue: 生物技术 园艺

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Effect of Photoperiod on Yield and Quality of Water Dropwort in Plant Factory

LI Zhengpu1,2(), TONG Jing1,3(), WANG Suna4, LI Yanyan5, WANG Liping4, LIANG Hao1,3, WU Zhanhui1,3   

  1. 1Vegetable Research Center, Beijing Academy of Agricultural and Forestry Sciences, Beijing 100097
    2Agricultural and Rural Bureau of Fengfeng Mining District of Handan City, Handan, Hebei 056200
    3Key Laboratory of Urban Agriculture of North China, Ministry of Agriculture and Rural Affairs, Beijing 100097
    4College of Landscape and Ecological Engineering, Hebei University of Engineering, Handan, Hebei 056038
    5Handan Academy of Agricultural Sciences, Handan, Hebei 056001
  • Received:2021-06-08 Revised:2021-07-23 Online:2022-11-05 Published:2022-10-27
  • Contact: TONG Jing E-mail:2686698680@qq.com;tongjing@nercv.org

Abstract:

To screen out the optimum growth condition of water dropwort with high yield and better quality, Japan water dropwort was used as the test material, growth experiments were conducted with indoor LED lights under different photoperiods. Four light/dark alternates (3.5 h/2.5 h, 7 h/5 h, 14 h/10 h, and 10 h/14 h) were set, and the growth parameters, such as the content of vitamin C, total flavonoid, soluble protein, photosynthetic pigment and nitrate, were measured to explore the effects of photoperiod on the growth and quality of water dropwort. The results showed that prolonging illumination from 10 h (10 h light/14 h dark) to 14 h (7 h light/5 h dark-7 h light/5 h dark) could promote the plant height, total yield, and leaf quality of water dropwort.

Key words: plant factory, water dropwort, photoperiod, nutritional quality, microstructure

CLC Number: