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Distribution Characteristics and Regulation of Ultraviolet Light in Plant Factory Production |
LIU Wenke, YANG Qichang |
Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences; Key Labatory of Energy Conservation and Waste Management of Agricultural Structures, Ministry of Agriculture, Beijing 100081, China |
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Abstract: Ultraviolet light (UV), as an important part of continuous sunlight, refers to the wavelength ranging from 100 nm to 380 nm. Ultraviolet light functions crucially in photomophological formation, leafy coloration and secondary metabolism of plants via photobiology and photochemistry mechanisms, and has potential application value in high-quality vegetable production. Protected horticulture is a kind of modern production pattern for vegetables and mushroom, even fruits in greenhouse, plastic-covered tunnel and plant factory. In this paper, the distribution characteristics of UV light in plant factories with artificial light and sunlight, plant effects of UV-A, UV-B and UV-C and the necessity of artificial regulation are summarized. Moreover, the utilization prospects, targets and methods of UV-LED in plant factory are highlighted.
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Received: 10 January 2014
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