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2026 Vol.39, Issue 4 Preview Page
Development of Optimized Propagation Techniques by Determining Germination and Cutting Conditions in Sageretia thea (Osbeck) M.C. Johnst.

상동나무의 발아 및 삽목 조건 구명에 따른 증식기술 개발

Min Ji Kwon1
,
Hui-Yeong Jeong2
,
Dae Hui Jeong3
,
Jeong Ho Song4
,
Ho-Jun Son3
권 민지1
,
정 희영2
,
정 대희3
,
송 정호4
,
손 호준3
1Post-Master’s Researcher, Forest Medicinal Resources Research Center, National Institute of Forest Science, Yeongju 36040, Korea
2Post-doc, Forest Medicinal Resources Research Center, National Institute of Forest Science, Yeongju 36040, Korea
3Researcher, Forest Medicinal Resources Research Center, National Institute of Forest Science, Yeongju 36040, Korea
4Senior Researcher, Forest Medicinal Resources Research Center, National Institute of Forest Science, Yeongju 36040, Korea
1국립산림과학원 산림약용자원연구소, 석사연구원
2국립산림과학원 산림약용자원연구소, 박사연구원
3국립산림과학원 산림약용자원연구소, 임업연구사
4국립산림과학원 산림약용자원연구소, 임업연구관
*Corresponding Author
1 August 2026. pp. 191-202
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Abstract

This study aimed to establish an efficient propagation system for Sageretia thea by analyzing seed germination, cutting conditions, and plant growth regulator (PGR) treatment. To determine the optimal seed germination conditions, seed water absorption was measured, and germination percentage (GP) was investigated under different temperature conditions. In addition, mean germination time (MGT), days to 50% of germination of final germination rate (T50), and germination velocity (Rs) were also investigated. To determine the optimal cutting propagation conditions, rooting characteristics were investigated according to cutting type, cutting length, cutting diameter, and concentration treatments of three PGRs. The results showed that seed water absorption reached 54.8 ± 0.6%. The optimal temperature for GP was 15℃, at which GP was 100 ± 0.0%; however, considering both GP and germination velocity, the optimal temperature range was 20∼25℃. Hardwood cuttings exhibited the highest rooting rate at 66.7 ± 2.4% compared to softwood cuttings. The optimal cutting length and diameter were 7∼9 ㎝ (40.0 ± 4.0%) and 6∼7 ㎜ (50.0 ± 4.0%), respectively. Among the plant growth regulators tested, GA3 at 1,000 ㎎/L exhibited superior rooting performance, with a leaf emergence rate of 86.7 ± 4.7% and a rooting rate of 61.7 ± 13.1%.

Keywords
Cutting conditions
Plant growth regulators
Rooting characteristics
Seed germination
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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 : 39
  • No :4
  • Pages :191-202
  • Received Date : 2026-04-06
  • Revised Date : 2026-06-05
  • Accepted Date : 2026-06-05
  • DOI :https://doi.org/10.7732/kjpr.2026.39.4.191
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