Korean Journal of Medicinal Crop Science (한국약용작물학회지)

The Korean Society of Medicinal Crop Science (한국약용작물학회)
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Effects on the Storability Enhancement and Root Yield by Air Curing of the Seed Rhizome of Rehmannia glutinosa Liboschitz ex Steudel

지황 종근의 저장성 및 수량에 미치는 음건 처리의 효과

  • Lee, Sang Hoon (Department of Herbal Crop Research, NIHHS, RDA) ;
  • Yun, Hyeong Muk (Department of Medicinal and Industrial Crops, Korean National College of Agriculture and Fisheries) ;
  • Koo, Sung Cheol (Department of Herbal Crop Research, NIHHS, RDA) ;
  • Hur, Mok (Department of Herbal Crop Research, NIHHS, RDA) ;
  • Han, Jong Won (Department of Herbal Crop Research, NIHHS, RDA) ;
  • Lee, Woo Moon (Department of Herbal Crop Research, NIHHS, RDA) ;
  • Chang, Jae Ki (Department of Herbal Crop Research, NIHHS, RDA) ;
  • Kim, Yeon Bok (Department of Medicinal and Industrial Crops, Korean National College of Agriculture and Fisheries)
  • 이상훈 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • 윤형묵 (한국농수산대학 특용작물학과) ;
  • 구성철 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • 허목 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • 한종원 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • 이우문 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • 장재기 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • 김연복 (한국농수산대학 특용작물학과)
  • Received : 2018.03.19
  • Accepted : 2018.05.25
  • Published : 2018.08.30
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Abstract

Background: The use of Rehmannia glutinosa of the family Scrophulariaceae, in traditional medicine is well known. This study was conducted to elucidate the effect of air curing of the seed rhizome of R. glutinosa on its storability and yield. Methods and Results: The root of the R. glutinosa cultivar (Dagang) was harvested in at the end of November. The seed rhizomes were air cured for one to seven days. They were subsequently wrapped with newspaper and further stored in a plastic container at $1^{\circ}C$. It was observed that the weight loss and decay rates were significantly lower in the air cured seeds than in the untreated ones. Moreover, the decay rate of the control was approximately 50%, 120 days after storage. However. the decay rate of all the air cured treatment groups was less than 1%. Additionally, air curing led to an increase in the germination rate of the seeds and the root yield when compared with the untreated groups. Taken together, the ideal treatment period for air curing was found to be 3 days. Under these conditions, the germination rate and yield were 88.7% and 2,185 ㎏/10a, respectively. Conclusions: This study successfully demonstrated that the air curing of seed rhizomes can lead to a considerable increase in the storability and yield of R. glutinosa.

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References

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