한국작물학회지 (KOREAN JOURNAL OF CROP SCIENCE)

  • 제65권2호
  • /
  • Pages.156-160
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  • 2020
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  • 0252-9777(pISSN)
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  • 2287-8432(eISSN)
한국작물학회 (The Korean Society of Crop Science)
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파종전처리가 차나무 종자의 출아에 미치는 영향

Effects of Presoaking Treatments on Emergence of Tea (Camellia sinensis) Seeds

  • 심두보 (하동녹차연구소) ;
  • 전승호 (순천대학교 생명산업과학대학 웰빙자원학과)
  • Shim, Doobo (Institute of Hadong Green Tea) ;
  • Jeon, Seung-Ho (Department of Well-being Resources, College of Life Science and Natural Resources, Sunchon National University)
  • 투고 : 2020.02.13
  • 심사 : 2020.05.11
  • 발행 : 2020.06.01
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초록

본 연구는 차나무 종자의 교배육종에 위한 품종 육성의 체계적인 기술확립을 위해 과산화수소 등 다양한 파종전처리를 통하여 차나무 종자의 출아율 및 유묘 소질을 알아보고자 수행하였다. 1. 무처리구의 출아율은 36.7%로 나타났고, 염기성 조건(pH 10)에서는 출아율이 26.7%로 가장 낮은 발아율을 보인 반면, 100 mM 과산화수소에서 가장 높은 65.0% 출아율을 보였다. 2. 출아율과 출아율지수는 처리에 따라 유의성이 나타났으며, 평균출아일수는 유의성이 나타나지 않았다. 3. 처리간의 평균출아일수는 과산화수소(10, 100 mM)와 물리적 충격 처리구에서 가장 짧은 46.5~47.0일이 소요되었으며, 출아율지수는 100 mM 과산화수소 처리구에서 가장 높은 1.363 d-1m-1을 보였다. 4. 파종 60일 후에 묘 소질에서의 초장, 엽수, 엽장 및 엽폭 모두 조사에서 100 mM 과산화수소 처리구에서 9.1 cm, 4.4개 5.5 cm, 3.1 cm로 가장 크거나 많은 것으로 나타났다.

Emergence and early growth changes of stratification condition of tea (Camellia sinensis) seeds were investigated in 7 treatments (control, pH 4, pH 10, 70% ethanol (EtOH), 10 mM H2O2, 100 mM H2O2, and physical shock (5.9 J)). Ethanol treatment was toxic and did not induce emergence. The emergence rate was 36.7% in the control, 26.7% under pH 10, 46.7% under pH 4, 48.3% under physical shock, 51.7% under 10 mM H2O2, and 65.0% under 100 mM H2O2 treatments. It was higher by approximately 178% in the H2O2 treatment as compared to the control. Plant height was 6.5 cm in the control, 6.6 cm under pH 10, 7.6 cm under pH 4, 7.8 cm under physical shock, 8.3 cm under 10 mM H2O2, and 9.1 cm under 100 mM H2O2 treatments. Leaf length and leaf width were also higher under the H2O2 treatment. Therefore, hydrogen peroxide treatment induced emergence and increased the uniformity of early growth.

키워드

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