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Identification of Appropriate Light Intensity and Daytime Temperature for Cucumber ( Cucumis sativus L.) Seedlings in a Plant Factory with Artificial Lighting for Use as Grafting Material

Author

Listed:
  • Hwi-Chan Yang

    (Department of Interdisciplinary Program in Smart Agriculture, Kangwon National University, Chuncheon 24341, Republic of Korea)

  • Young-Ho Kim

    (Department of Horticulture, Kangwon National University, Chuncheon 24341, Republic of Korea)

  • Hyo-Jeung Byun

    (Dongbangagro Co., Ltd., Buyeo 323-932, Republic of Korea)

  • In-Lee Choi

    (Agricultural and Life Science Research Institute, Kangwon National University, Chuncheon 24341, Republic of Korea)

  • Ngoc-Thang Vu

    (Faculty of Agronomy, Vietnam National University of Agriculture, Hanoi 131000, Vietnam)

  • Dea-Hoon Kim

    (Hoban Agriculture Corporation, Chuncheon 24211, Republic of Korea)

  • Hyuk-Sung Yoon

    (The Waksman Institute of Microbiology, Rutgers the State University of New Jersey, Piscataway, NJ 08854, USA)

  • Dong-Cheol Jang

    (Department of Interdisciplinary Program in Smart Agriculture, Kangwon National University, Chuncheon 24341, Republic of Korea
    Department of Horticulture, Kangwon National University, Chuncheon 24341, Republic of Korea)

Abstract

In this study, an experiment was conducted to suggest optimal daytime temperature and light intensity for cucumber scion and rootstock production in a plant factory with artificial light. Plant growth of cucumber scions and rootstocks at a day/night temperature of 26/18 °C and photosynthetic photon fluxes of 50, 120, 190, 260, 330, and 400 μmol·m −2 ·s −1 was investigated. Plant growth under daytime temperatures of 25/18, 26/18, 27/18, and 28/18 °C at a photosynthetic photon flux of 260 μmol·m −2 ·s −1 was investigated. As the photosynthetic photon flux increased, hypocotyl length was shortened in cucumber scions and rootstocks, but Dickson quality index, compactness, and Seedling Health Index were improved. As the daytime temperature increased, the hypocotyl length of cucumber scions increased, but the quality of seedlings decreased. The root growth of scions decreased as the daytime temperature increased. As for the correlation between the major growth indicators, Dickson quality index, compactness, and Seedling Health Index showed a high correlation of more than 0.8 in stem diameter, leaf, and root weight. Therefore, it is judged that it is most efficient to maintain the photosynthetic photon flux at 260 μmol·m −2 ·s −1 throughout the year and adjust the daytime temperature to 25 to 28 °C according to the season for farms and commercial nurseries that produce cucumber seedlings by installing plant factories with artificial light.

Suggested Citation

  • Hwi-Chan Yang & Young-Ho Kim & Hyo-Jeung Byun & In-Lee Choi & Ngoc-Thang Vu & Dea-Hoon Kim & Hyuk-Sung Yoon & Dong-Cheol Jang, 2023. "Identification of Appropriate Light Intensity and Daytime Temperature for Cucumber ( Cucumis sativus L.) Seedlings in a Plant Factory with Artificial Lighting for Use as Grafting Material," Sustainability, MDPI, vol. 15(5), pages 1-15, March.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:5:p:4481-:d:1085976
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    References listed on IDEAS

    as
    1. Jianfeng Zheng & Peidian Gan & Fang Ji & Dongxian He & Po Yang, 2021. "Growth and Energy Use Efficiency of Grafted Tomato Transplants as Affected by LED Light Quality and Photon Flux Density," Agriculture, MDPI, vol. 11(9), pages 1-14, August.
    2. Hyunseung Hwang & Sewoong An & Minh Duy Pham & Meiyan Cui & Changhoo Chun, 2020. "The Combined Conditions of Photoperiod, Light Intensity, and Air Temperature Control the Growth and Development of Tomato and Red Pepper Seedlings in a Closed Transplant Production System," Sustainability, MDPI, vol. 12(23), pages 1-20, November.
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