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KMID : 1098420080160060434
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Korean Journal of Medicinal Crop Science
2008 Volume.16 No. 6 p.434 ~ p.438
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Effect of Variety and Shading Material on Growth Characteristics and Ginsenoside Contents of 2-Year-Old Ginseng (Panax ginseng C. A. Meyer) Grown in Imperfectly Drained Paddy Soil
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Lee Sung-Woo
Yeon Byeong-Yeol
Kim Chung-Guk
Shin Yoo-Su
Hyun Dong-Yun
Kang Seung-Weon
Cha Seon-Woo
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Abstract
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To selection of optimal shading material, two-year-old ginseng (Panax ginseng C. A. Meyer) of new cultivar, ’Cheonpoong’ (CP), and native species ’Hwangsookjong’ (HS) were cultured under three kinds of shading materials such as three-layered blue and a one-layered black PE (polyethylene) net (TBSB), blue PE sheet (BS), and aluminium coated PE sheet (AS) in imperfectly drained paddy soil. Growth characteristics, yield and ginsenoside contents were investigated under three shading materials. Yield and ginsenoside contents of ginseng were distinctly affected by intensity and quality of sunlight penetrated through shading materials. Light transmission ratio, air and soil temperature according to shading materials were higher in order of BS, AS, and TBSB. However, ratio of aerial phase and porosity of the soil were higher in order of AS, BS, and TBSB, respectively. There was no significantly difference in the ratio of rusty colored root by shading materials. CP showed higher stem length, leaf area, and root weight than that of HS, while the former showed distinctly lower discolored leaf ratio than that the other. Eight kinds of ginsenosides content of CP were higher than that of HS in and Rc except , Re, Rf, Rb₁and Rc except Rg₂,Rb₂,and Rb₃. Total ginsenoside contents of CP was distinctly higher than that of HS. Total ginsenoside contents as affected by shading materials was higher in order of BS, TBSB, and AS in CP, while TBSB, BS, and AS in HS.
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KEYWORD
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Ginseng, Shading Material, Variety, Growth Characteristics, Ginsenoside, Paddy soil
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