Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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The Effects of LED Light Quality on Foliage Plants Growths in Interior Environment

실내에서 LED광질이 관엽식물의 생장에 미치는 영향

  • Kim, Myung-Seon (Department of Horticultural science Kongju National University) ;
  • Chae, Soo-Cheon (Department of Horticultural science Kongju National University) ;
  • Lee, Myung-Won (Department of Horticultural science Kongju National University) ;
  • Park, Gab-Soon (Department of Horticultural science Kongju National University) ;
  • Ann, Seoung-Won (Department of Horticultural science Kongju National University)
  • Received : 2013.10.15
  • Accepted : 2013.11.18
  • Published : 2013.11.29
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Abstract

In the results of investigating the role of LED light quality in enhancing the ornamental value of indoor foliage plants, amber and red light increased plant height, leaf width, and leaf stalk, and the consequent tree shape decreased the ornamental value. The chlorophyll content increased significantly under white light and compound light. With regard to the effect of plant leaf color on ornamental value, the value of lightness was markedly enhanced by red light. As to the functionality of plants according to photosynthetic activity, plants such as Dieffenbachia, Clusia, and Dracaena were found favorable to those staying indoors for a longtime from morning to evening. Spathiphyllum, and Ficus were found to be recommendable for indoor spaces used actively during afternoon because their photosynthesis was activated in the afternoon. With regard to power consumption according to light quality, white light consumed 119 W/hour, around 45% lower than that of fluorescent lamps, so it is considered the optimal artificial light quality that can enhance energy efficiency. Red light consumed 72 W/hour, only 33% of that of fluorescent lamps, but it was not considered the optimal light quality because plant growth was poor under the light quality. White light and compound light were found to be the ideal light sources for improving the functionality and ornamental value of indoor plants and reducing the cost of maintenance, but because compound light hinders people from recognizing the original color of plants and makes their eyes easily tired, white light was considered the optimal light satisfying all of the ornamental value, economic efficiency and functionality resulting from plant growth.

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References

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