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ISSN : 1225-9306(Print)
ISSN : 2288-0186(Online)
Korean Journal of Medicinal Crop Science Vol.25 No.4 pp.209-216
DOI : http://dx.doi.org/10.7783/KJMCS.2017.25.4.209

Effect of Seed Dehydration and Temperature during Cold-Stratification on the Seed Quality of Panax ginseng C. A. Meyer

Su Jeoung Suh, In Bae Jang, Jin Yu, In Bok Jang, Hong Woo Park, Tae Cheol Seo, Ki Bum Kweon

Abstract

Background: Dehisced ginseng seeds need to be stored at cold temperatures for around 3 months to break their physiological dormancy, and thus, to aid in gemination. In the presence of high moisture in such an environment, seed spoilage and pre-germination may lower seed quality and productivity. To improve seed quality during cold-stratification, the effects of seed dehydration and temperature were tested.
Methods and Results: In early December, dehisced ginseng seeds were dehydrated at 4 different levels and stored at 2℃- 2℃, and –20℃ for 3 months. Germination was carried out on the filter papers moistened with distilled water; emergence of root, shoot, and seed spoilage were assessed. Seed viability was examined by the tetrazolium test. More than 90% of the seeds stored at 2℃ and –2 ℃ without drying or endocarp dehydration germinated, but seeds that were dehydrated to have a moisture content (MC) below 31% showed poor germination and lost their viability. In addition, the seeds stored at –20℃ failed to show effective germination.
Conclusions: Seed storage after endocarp dehydration might help to improve seed quality and increase seedling's ability to stand during the spring-sowing of ginseng.

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