Journal of Ginseng Research

The Korean Society of Ginseng (고려인삼학회)
권호 표지

Seasonal Change of Growth Regulator Activity in Panax ginseng Root

인삼근중 생육조절제의 계절변화

  • Hoon Park (Korea Ginseng and Tobacco Research Institute, Science Town) ;
  • Kab Sig Kim (Korea Ginseng and Tobacco Research Institute, Science Town) ;
  • Chong Hwa Lee (Korea Ginseng and Tobacco Research Institute, Science Town)
  • Published : 1986.12.01
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Abstract

Activity of endogenous growth regulator in 4th year Panax ginseng root was investigated by second leaf sheath test of rice seedling and paper chromatogram of a acidic fraction of methanol extract before (March 28) and after (May 9) emergence of root bud, at the late season (Sept.4) and after leaf fall (November 11). GA$_3$ and ABA were used as reference. According to paper and high performance liquid chromatography of samples and authentic growth regulators the presence of insole acetic acid (IAA), gibberellic acid (GA$_3$) and abscisic acid (cis and trans ABA) was confirmed. These three regulators appeared to consist of major system though the existence of other regulators could not be ruled out. IAA activity seemed little changed through out the seasons. GA activity decreased in the later stages while ABA activity increased.

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