Comparison of Growth Characteristics and Ginsenoside Content of Ginseng (Panax ginseng C. A. Meyer) Cultivated with Greenhouse and Traditional Shade Facility
2011
Lee, S.W., National Institute of Horticultural and Herbal Science, RDA, Eumseong, Republic of Korea | Kim, G.S., National Institute of Horticultural and Herbal Science, RDA, Eumseong, Republic of Korea | Hyun, D.Y., National Institute of Horticultural and Herbal Science, RDA, Eumseong, Republic of Korea | Kim, Y.B., National Institute of Horticultural and Herbal Science, RDA, Eumseong, Republic of Korea | Kim, J.W., National Institute of Horticultural and Herbal Science, RDA, Eumseong, Republic of Korea | Kang, S.W., National Institute of Horticultural and Herbal Science, RDA, Eumseong, Republic of Korea | Cha, S.W., National Institute of Horticultural and Herbal Science, RDA, Eumseong, Republic of Korea
Growth characteristics, root yield and ginsenoside contents of 3-year-old ginseng in greenhouse shaded by 30° sloped-curtain made of aluminum were compared to traditional shade facility in order to develop cultural practice for organic ginseng. Light transmittance ratio in greenhouse with 30° sloped-curtain shade was distinctly lower than that of traditional shade from sunrise to 9 a.m., while its ratio in greenhouse was higher than traditional shade since 9 a.m. due to the reflection of light. Air temperature of greenhouse was 1.3℃ higher than that of traditional shade on the first ten days of August due to more reflected light. Root yield of greenhouse was 44% higher than that of traditional cultivation because of the inflow of reflected light and the decrease of disease of Alternaria and Anthracnose by blocking rainfall. Dry matter partitioning ratio of rhizome and lateral root were increased in ginseng cultivated at greenhouse due to longer survival time in leaf than traditional cultivation. Total ginsenoside contents cultivated at greenhouse was decreased in the part of taproot, while it was increased in the part of lateral and fine root compare to traditional cultivation. Individual ginsenoside contents between greenhouse and traditional cultivation showed significant difference more frequent in fine root than taproot and lateral root. Total ginsenoside contents including Rb₁, Rb₂, Rc, Rd, Re, Rf, Rg₁, and Rg₂ in whole root of 3-year-old ginseng did not showed significant difference by greenhouse and traditional cultivation.
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