• Title/Summary/Keyword: ginseng plants

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Studies on the Optimum Light Intensity for Growth of Panu ginseng (II) Study on the difference of the optimum light intensity for the growth of ginseng Plant accordingto the root age (인삼생육의 최적광량에 관한 연구 (제2보) 인삼생육에 대한 최적광량의 년생간 차이에 관하여)

  • 이종철;천성기
    • Journal of Ginseng Research
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    • v.6 no.2
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    • pp.149-153
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    • 1982

  • To investigate the effect of light intensity on the growth of shoots and roots, water and chlorophyll contents in the ginseng leaf were determined at 5%, l0%, 20%, 30% light transmittance rate (LTR) with 1,2 and 4 year-old ginseng plants in the field. Stem length, size of the leaf, water and chlorophyll contents were decreased as the increase of the light intensity in all ages of ginseng plants. The degree of decrease was severe in the one year-old ginseng compared to that of 2, or 4 year-old ginseng, while there was no difference between the 2 and 4 year-old plants. Root weight per plant was highest at 5% LTR in the one year-old plants, while it was at 20% LTR in the 2 and 4 year-old plants. Generally, demand of light for the growth of one year-old ginseng was lower than those of 2 or 4 year-old plants there was no difference of it among the ginseng plants older than 2 years.

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Study on the Allelopathy of the Korean Ginseng (한국 인삼의 Allelopathy에 관한 연구)

  • Lee, Seong Ho;Jai Seup Ro;Kyung Soon Lee
    • The Korean Journal of Ecology
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    • v.6 no.4
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    • pp.250-256
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    • 1983

  • Dehiscence of ginseng seeds under the various conditions, growing experiment in the different soil conditions, and growing experiment with extracts obtained by water passed the pot of 4 year ginseng plants were performed. The results obtained are as follows: The survival rate of ginseng plants in the soil of ginseng field sterilized by MIYAZAWA's method was higher than that of the non-sterilized, but lower than that of the control. The survival rate of ginseng plants on the sterilized soil of ginseng field was lower than that on the surrounding soil. The growth of ginseng plants cultivated with the water passed through the pot-planted 4-year-old ginseng plants was strongly inhibited in comparison with the control. Besides biological cause, chemical products excreted from the root of ginseng plants might be the important factors of soil sickness in the successive cultivation of the same plants.

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