Ocean and Polar Research

Korea Institute of Ocean Science & Technology (한국해양과학기술원)
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Effects of Seed Preservation Periods and Soil Composition on the Seed Germination and Seedling Growth of Halophyte Suaeda japonica

염생식물 칠면초(Suaeda japonica)의 종자발아와 유묘생장에 종자 보관기간과 토양구성이 미치는 영향

  • Yong Sung, Kwak (Faculty of Biological Science/Institute of Environmental Science, Wonkwang University) ;
  • Si Eun, Kim (Faculty of Biological Science/Institute of Environmental Science, Wonkwang University) ;
  • Ji Chul, Oh (Ecological Restoration Division, Resource Business Headquarters, Korea Fisheries Resouces Agency) ;
  • Seo Kyoung, Park (Faculty of Biological Science/Institute of Environmental Science, Wonkwang University) ;
  • Han Gil, Choi (Faculty of Biological Science/Institute of Environmental Science, Wonkwang University)
  • 곽용성 (원광대학교 생명과학부/환경과학연구소) ;
  • 김시은 (원광대학교 생명과학부/환경과학연구소) ;
  • 오지철 (한국수산자원공단 자원사업본부 생태복원실) ;
  • 박서경 (원광대학교 생명과학부/환경과학연구소) ;
  • 최한길 (원광대학교 생명과학부/환경과학연구소)
  • Received : 2022.08.10
  • Accepted : 2022.09.22
  • Published : 2022.12.30
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Abstract

Seed germination and seedling growth of a halophyte, Suaeda japonica were examined to measure the effects of seed preservation periods and various soil compositions in the mudflat of Saemangeum, Korea. Seed germination declined from 74.30% to 44.30% as the preservation period increased from 4 months to 12 months. After 14 days of seeding, seed germination was lowest in sandy soil (SS) at 8.67% and highest in earthworm cast+leaf mold (EC+LM) at 67.33%, showing 4~5 times higher than SS. The average lengths of seedlings were 12.20 mm in SS and 42.20 mm in EC+LM, respectively. These results suggest that seed germination and seedling growth enhanced in the soil that has more organic matter. In the experiment mixing Saemangeum soil (SMS), seed germination was from 4.00% in SMS to 88.00% in the soil of SMS+EC+LM after 14 days. Similar growth patterns were observed in the length of seedlings from 5.00 mm in SMS to 49.60 mm in SMS+EC+LM. The present results indicate that a population of Suaeda japonica could be established by stimulating seed germination and seedling growth by the addition of organic matters such as EC, LM, and EC+LM in the Saemangeum mud flat.

Keywords

Acknowledgement

본 연구는 2021년도 정부(과학기술정보통신부)의 재원으로 한국연구재단-현장맞춤형 이공계 인재양성 지원사업의 지원을 받아 수행되었습니다(No. 2019H1D8A1109814).

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