Journal of People, Plants, and Environment (인간식물환경학회지)

Society For People, Plants, And Environment (인간식물환경학회)
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Germination and Seedling Growth Response of Sprouts and Leafy Vegetables after Applying Oxygen Nanobubble Water

  • Lee, Seo Youn (Department of Horticulture, Biotechnology and Landscape Architecture, Seoul Women's University) ;
  • Jung, Seo Hee (Department of Horticulture, Biotechnology and Landscape Architecture, Seoul Women's University) ;
  • Cho, Ah Ram (Department of Horticulture, Biotechnology and Landscape Architecture, Seoul Women's University) ;
  • Shim, Myung Syun (Department of Horticulture, Biotechnology and Landscape Architecture, Seoul Women's University) ;
  • Chung, You Kyung (Department of Horticulture, Biotechnology and Landscape Architecture, Seoul Women's University) ;
  • Kim, Yoon Jin (Department of Horticulture, Biotechnology and Landscape Architecture, Seoul Women's University)
  • Received : 2021.09.23
  • Accepted : 2021.10.25
  • Published : 2021.12.31
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Abstract

Background and objective: The nanobubbles remain stable in water, and it increased dissolved oxygen (DO) in the water that promotes the seed germination and the plant growth. We evaluated the seed germination and growth of sprouts (radish, wheat, and barley) and leafy vegetables (red mustard and pak choi) when irrigated with various DO of nanobubble water (NB). Methods: The oxygen NB was generated by surface friction and treated in 4 levels: NB 0% (control, DO 9.21 mg·L-1), NB 20% (DO 15.40 mg·L-1), NB 33% (DO 20.93 mg·L-1), and NB 100% (DO 39.29 mg·L-1). Results: The root length of radish and wheat increased more in NB 33% than the control plot. The fresh weight increased in NB 33% compared to the control plot in radish and wheat, and both fresh and dry weight increased more in NB 20%, NB 33%, and NB 100% than the control plot of barley. The leaf length and width of red mustard decreased more in NB 33% and NB 100% than the control plot and NB 20%, which indicated the leaf compactness. The fresh and dry weight of shoot and root increased more in NB 100% than the control plot in red mustard. In pak choi, the shoot fresh weight increased more in NB 100% than the control plot. In leafy vegetables, the germination rate of red mustard in NB 100% was higher than the control plot, however, it was not significantly different between oxygen NB plots in sprout vegetables. Conclusion: The results showed that the root growth and biomass increased after applying NB 33% in sprout vegetables. The leaf growth properties as the number of leaves and leaf size were not significantly different or decreased in NB treatments compared to control plots, but NB 100% (DO 39.29 mg·L-1) effectively increased the root growth and plant biomass in leafy vegetables.

Keywords

Acknowledgement

This study is supported by the National Research Foundation of Korea Mid-career Research Grant (NRF-2018R1A2B6007834), Ministry of Science & ICT and Institute for Information & Communications Technology Promotion SW University Grant (2016-0-00022), and Seoul Women's University research fund (2021-0106).

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