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KMID : 0352720040280040196
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Journal of Ginseng Research
2004 Volume.28 No. 4 p.196 ~ p.200
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Effect of Light Transmittance Control on the Root Yield and Quality during the Growing Season of Panax ginseng
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천성기/Cheon SK
이태수/윤종혁/이성식/목성균/Lee TS/Yoon JH/Lee SS/Mok SK
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Abstract
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This study was conducted to compare the root weight, yield, quality of fresh and red ginseng roots and crude saponin content in roots between fixing light transmittance(Control) and changing light transmittance(C.L.T.) during the ginseng growing seasons. The root weight in C.L.T. was higher than control by 35% in early growth stage, 28% in middle growth stage and 26% in late growth stage in 6 years old ginseng plant. Root yield per 10a in C.L.T. was increased about 40% as compared with that of control, also 1st and 2nd grade of fresh ginseng roots in C.L.T. was higher (50.3%) compared with that (12.9%) of control. The specific gravity of ginseng roots grown under the C.L.T. was exhibited the significant difference than control during the growing season in 4 and 6 years old ginseng plants. Red ginseng quality in C.L.T. was not only improved remarkably due to the increasement of heaven and earth grade red ginseng but also increased in crude saponin content than control. Therefore it needs to change the light transmittance(increasing light during low temperature periods and decreasing light during high temperature period) during the growing season for high yield and good qualities of ginseng roots.
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KEYWORD
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