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KMID : 1098420110190020090
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Korean Journal of Medicinal Crop Science
2011 Volume.19 No. 2 p.90 ~ p.96
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Studies on Analysis of Growth Characteristics, Ability of Dry Matter Production, and Yield of Panax ginseng C. A. Meyer at Different Growth Stages with Different Cultivars and Shading Nets in Paddy Field
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Song Beom-Heon
Chang Yoon-kee
Lee Kyung-a
Lee Sung-Woo
Kang Seung-Won
Cha Sun-Woo
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Abstract
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This study was conducted to examine major growth responses, the production and partitioning of dry matter on different growth stages, and yields and to select the optimal shading material in both quality and productivity of ginseng. Two cultivars of ginseng, Cheonpoong and Geumpoong, were cultivated in the paddy soil with three different shading materials; three-layered blue and one-layered black polyethylene (TBP), blue polyethylene sheet (BPS), and aluminium-coated polyethylene sheet (APS). Plant heights were linearly increased until June 24 and then maintained with showing higher height in Cheonpoong than that in Geumpoong cultivar. Root lengths were gradually increased until October 16. They were longer in Cheonpoong than that in Geumpoong cultivar, showing slightly longer with APS compared to TBP and BPS. The ability of producing dry matter of leaves was much higher from April to June compared to those of other growth periods, whereas its ability of root was concentrated from the end of June to the end of August. Among the shading materials, the ability of producing dry matter of shoot was higher with TBP than those with BPS and APS, while its ability of root was not appeared certain tendency unlike the shoot. The yield of ginseng roots was the highest with TBP among three shading materials and it was higher in Cheonpoong than that of Geumpoong cultivar. The shading materials which affect the light intensity and the temperature would be considered as an important factor to get better quality and productivity of Korean ginseng.
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KEYWORD
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Ginseng, Cultivar, Shading Material, Yield, Growth Responses, Partitioning
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