한국자원식물학회지 (Korean Journal of Plant Resources)

  • 제36권6호
  • /
  • Pages.580-587
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  • 2023
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  • 1226-3591(pISSN)
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  • 2287-8203(eISSN)
한국자원식물학회 (The Plant Resources Society of Korea)
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Effect of Cold Stratification and Gibberellin Treatment on Androsace septentrionalis L. Seed Germination

  • Dong-Hak Kim (DMZ Botanic Garden, Korea National Arboretum) ;
  • Seungju Jo (Department of Forest Environmental System, Kangwon National University) ;
  • Jung-Won Sung (Department of Landscape Architecture, Korea National University of Agriculture and Fisheries) ;
  • Jung-Won Yoon (DMZ Botanic Garden, Korea National Arboretum)
  • 투고 : 2023.10.09
  • 심사 : 2023.11.07
  • 발행 : 2023.12.01
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초록

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 mg·L1 GA3 treatment. The results of this study are useful for the mass propagation of A. septentrionalis.

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참고문헌

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