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2024 Vol.37, Issue 1 Preview Page
Effect of Alternating Temperature Conditions, and GA3 Treatment on Seed Germination of Trollius macropetalus (Regel) F.Schmidt

변온 조건 및 GA3 처리가 큰금매화의 종자 발아에 미치는 영향

Dong-Hak Kim1
,
Seungju Jo2
,
Jung-Won Sung3
,
Jung-Won Yoon4*
김 동학1
,
조 승주2
,
성 정원3
,
윤 정원4*
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
1국립수목원, DMZ산림생물자원보전과, 박사후연구원,
2강원대학교, 산림환경시스템학과, 대학원생
3한국농수산대학교, 조경학과, 교수
4국립수목원, DMZ산림생물자원보전과, 연구사
*Corresponding Author
1 February 2024. pp. 79-86
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Abstract

This study was conducted to determine the conditions for breaking dormancy in the seeds of the North Korean plant resource, Trollius macropetalus, and to investigate its germination characteristics. The morphological characteristics and viability of T. macropetalus seeds were examined. Germination characteristics were investigated based on temperature conditions (15/6℃ & 25/15℃), cold stratification treatment, and GA3 treatment. The results showed that cold stratification treatment had no effect on breaking the dormancy of T. macropetalus. GA3 treatment significantly increased the germination rate of T. macropetalus and also improved the mean germination days and germination speed. However, compared to the 15/6℃ condition, the effectiveness of GA3 treatment for T. macropetalus decreased under the 25/15℃ condition. It was determined that T. macropetalus have a nondeep-type morpho-physiological dormancy. The most effective conditions for breaking dormancy were found to be the 15/6℃ temperature condition and GA3 treatment at 500 ㎎·L-1. The findings of this study are expected to provide valuable information for the mass propagation of T. macropetalus, which has potential applications in landscaping and pharmaceutical materials.

Keywords
North Korean plant
Plant propagation
Seed dormancy
Trollius
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 : 37
  • No :1
  • Pages :79-86
  • Received Date : 2023-09-06
  • Revised Date : 2023-11-22
  • Accepted Date : 2023-12-11
  • DOI :https://doi.org/10.7732/kjpr.2024.37.1.079
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