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2023 Vol.36, Issue 6 Preview Page

Research Article

Effect of Cold Stratification and Gibberellin Treatment on Androsace septentrionalis L. Seed Germination
Dong-Hak Kim1
,
Seungju Jo2
,
Jung-Won Sung3
,
Jung-Won Yoon4*
1Post-doc, DMZ Botanic Garden, Korea National Arboretum, Yanggu 24564, Korea
2Graduate Student, Department of Forest Environmental System, Kangwon National University, Chuncheon 24341, Korea
3Professor, Department of Landscape Architecture, Korea National University of Agriculture and Fisheries, Jeonju 54874, Korea
4Researcher, DMZ Botanic Garden, Korea National Arboretum, Yanggu 24564, Korea
*Corresponding Author
1 December 2023. pp. 580-587
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Abstract

Androsace septentrionalis is a grass species restricted to North Korea; however, it is at the brink of extinction due to habitat loss and environmental changes caused by natural disasters and anthropogenic activities. This study was conducted to characterize the dormancy conditions of A. septentrionalis in an effort to conserve this North Korean plant resource. For this purpose, the morphological characteristics and vigor of A. septentrionalis seeds were examined, and its germination characteristics under different temperature conditions (15/6℃ and 25/15℃), low-temperature stratification, and gibberellin (GA3) treatment were determined. The results revealed that A. septentrionalis exhibits non-deep type morpho-physiological dormancy, and low-temperature stratification treatment was not effective in breaking the dormancy of A. septentrionalis seeds. Meanwhile, GA3 treatment significantly increased the mean germination time, rate, and speed of the seeds. The optimal conditions for the germination of A. septentrionalis seeds were 25/15℃ fluctuating temperature and 500 ㎎·L-1 GA3 treatment. The results of this study are useful for the mass propagation of A. septentrionalis.

Keywords
North Korean plant
Plant propagation
Seed dormancy
Underdeveloped embryo
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Information
  • Publisher :The Plant Resources Society of Korea
  • Publisher(Ko) :한국자원식물학회
  • Journal Title :Korean Journal of Plant Resources
  • Journal Title(Ko) :한국자원식물학회지
  • Volume : 36
  • No :6
  • Pages :580-587
  • Received Date : 2023-10-09
  • Revised Date : 2023-11-07
  • Accepted Date : 2023-11-07
  • DOI :https://doi.org/10.7732/kjpr.2023.36.6.580
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