Korean Journal of Medicinal Crop Science (한국약용작물학회지)

The Korean Society of Medicinal Crop Science (한국약용작물학회)
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Effects of Nutrient Solution on Growth and Amount of Ginsenoside of Two Year Old Ginseng Grown under Hydroponic Culture

수경재배 양액조건이 2년생 인삼의 생육 및 진세노사이드 함량에 미치는 영향

  • Yu, Jin (Department of Herbal Crop Research, NIHHS, RDA) ;
  • Jang, In Bae (Department of Herbal Crop Research, NIHHS, RDA) ;
  • Suh, Soo Jung (Department of Herbal Crop Research, NIHHS, RDA) ;
  • Kweon, Ki Bum (Department of Herbal Crop Research, NIHHS, RDA)
  • 유진 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • 장인배 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • 서수정 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • 권기범 (농촌진흥청 국립원예특작과학원 인삼특작부)
  • Received : 2016.02.25
  • Accepted : 2016.05.03
  • Published : 2016.06.30
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Abstract

Background: Electrical conductivity (EC) and pH are important features of nutrient solution, affecting both growth and quality of crops by altering nutrient uptake. Methods and Results: The pH values of nutrient solutions were controlled at 5.0, 5.5, 6.0, 6.5 and EC values were controlled at 0.68, 0.84, 1.23, 1.41 dS/m. Gingesng root weights were higher during the initial growth period when the plants were treated with low pH and low EC nutrient solutions. However, the higher pH and EC levels, the greater the increase in the rate of root weight between the initial and middle growth periods. The highest ginsenoside amount changed during growth period. The total ginsenoside amount was highest in the root, and the lowest in leaves at 45 and 90 days after treatment, respectively, with solution at a pH of 6.0. After 135 days of treatment, the highest total ginsenoside amount was detected in root treated with soluton with EC values of 1.23 dS/m. Conclusions: For the cultivation of ginseng using a nutriculture system, the pH and EC values of nutrient solutions should to be controlled based on the stage of growth and targeted plant organ (root or leaves).

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References

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