Journal of Ginseng Research

The Korean Society of Ginseng (고려인삼학회)
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Study on the grading standard of Panax notoginseng seedlings

  • Chen, Lijuan (Faculty of Life Science and Technology, Kunming University of Science and Technology) ;
  • Yang, Ye (Faculty of Life Science and Technology, Kunming University of Science and Technology) ;
  • Ge, Jin (Faculty of Life Science and Technology, Kunming University of Science and Technology) ;
  • Cui, Xiuming (Faculty of Life Science and Technology, Kunming University of Science and Technology) ;
  • Xiong, Yin (Faculty of Life Science and Technology, Kunming University of Science and Technology)
  • Received : 2016.06.03
  • Accepted : 2017.03.21
  • Published : 2018.04.15
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Abstract

Background: The quality differences in seedlings of medicinal herbs often affect the quality of medicinal parts. The establishment of the grading standard of Panax notoginseng seedlings is significant for the stable quality of medicinal parts of P. notoginseng. Methods: To establish the grading standard of P. notoginseng seedlings, a total of 36,000 P. notoginseng seedlings were collected from 30 producing areas, of which the fresh weight, root length, root diameter, bud length, bud diameter, and rootlet number were measured. The K-means clustering method was applied to grade seedlings and establish the grading standard. Results: The fresh weight and rootlet number of P. notoginseng seedlings were determined as the final indices of grading. P. notoginseng seedlings from different regions of Yunnan could be preliminarily classified into four grades: the special grade, the premium grade, the standard grade, and culled seedlings. Conclusion: The grading standard was proven to be reasonable according to the agronomic characters, emergence rate, and photosynthetic efficiency of seedlings after transplantation, and the yields and contents of active constituents of the medicinal parts from different grades of seedlings.

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