Difference of Ginsenoside Contents in Roots Cultivated under Blue and Red Polyethylene Shading Net in Panax ginseng C. A. Meyer
2008
Lee, S.W. (Department of Herbal Crop Research, National Institute of Horticultural and Herbal Science, RDA, Eumseong, Republic of Korea) | Kim, G.S. (Department of Herbal Crop Research, National Institute of Horticultural and Herbal Science, RDA, Eumseong, Republic of Korea) | Park, C.H. (School of Environmental and Biological Sciences, Rutgers, the State University of New Jersey, New Jersey, USA) | Simon, James E. (School of Environmental and Biological Sciences, Rutgers, the State University of New Jersey, New Jersey, USA) | Kim, K.S. (Mokpo National University, Muan, Republic of Korea), E-mail: [email protected]
This study was carried out to investigate the effect of light quality on root yield and ginsenoside contents of 4-year-old ginseng by using the fourfold polyethylene shading net with different colors, blue and red color, compared to blue-black (3:1) mixed shading net as control. Control and blue shading net occurred higher root yield, especially, in tap root growth than red one, whereas transmitted quantum in red shading net was higher than those in blue one or control. However, red shading net caused the highest content of total ginsenoside, especially, Rg₁ content, as compared to blue and control. We assumed that the increased content of ginsenoside is not caused by light quality such as red, but is due to the increase of relative ratio of ginsenoside in whole root tissue arising from the reduced root growth.
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