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삽목시기, 삽목용토, 생장조절제에 따른 상동나무 삽목발근 특성

Rooting Characteristics of Sageretia thea by Cutting Time, Rooting Medium and Plant Growth Regulators

  • 손용환 (국립산림과학원 산림약용자원연구소) ;
  • 박성혁 (국립백두대간수목원 보전복원실) ;
  • 손호준 (국립산림과학원 산림약용자원연구소) ;
  • 김지아 (국립산림과학원 산림약용자원연구소) ;
  • 조혜정 (국립산림과학원 산림약용자원연구소) ;
  • 이선영 (국립산림과학원 산림약용자원연구소) ;
  • 김현준 (국립산림과학원 산림약용자원연구소)
  • Son, Yonghwan (Forest Medicinal Resources Research Center, National Institute of Forest Science) ;
  • Park, Sunghyuk (Baekdudaegan Biodiversity Conservation Division, Baekdudaegan National Arboretum) ;
  • Son, Hojun (Forest Medicinal Resources Research Center, National Institute of Forest Science) ;
  • Kim, Ji-Ah (Forest Medicinal Resources Research Center, National Institute of Forest Science) ;
  • Cho, Hyejung (Forest Medicinal Resources Research Center, National Institute of Forest Science) ;
  • Lee, Sun-Young (Forest Medicinal Resources Research Center, National Institute of Forest Science) ;
  • Kim, Hyun-Jun (Forest Medicinal Resources Research Center, National Institute of Forest Science)
  • 투고 : 2022.05.11
  • 심사 : 2022.07.11
  • 발행 : 2022.10.01

초록

본 연구는 상동나무의 삽목을 통한 대량증식 체계를 확립하고자 발근에 큰 영향을 미치는 삽목시기, 식물생장조절제, 삽목용토별 처리를 통한 발근 효과를 구명해 보고자 하였다. 실험은 2019년 시기별로 각각3월, 7월, 9월 자생지에서 채집한 상동나무에 대해 식물생장조절제 및 용토별로 구분하여 120일간 삽목상에 두고 관찰하였다. 실험 결과 삽목시기에 따른 발근율, 근장의 발달에서 숙지삽목이 녹지, 반숙지삽목에 비해 발근율은 15%, 근장은 200% 증가하여 유의적인 효과를 보였다. 식물 생장조절제 및 농도별 처리에 따른 발근율은 대조구와 비교해서 유의적인 효과를 확인할 수 없었지만, 근장의 경우 IBA 500 mg/L > IBA 250 mg/L > IAA 1,000 mg/L 순으로 대조구 대비 최대 170% 수준으로 향상되어 유의적인 효과를 확인할 수 있었다. 결과적으로 상동나무 삽목시 시기는 3월경 숙지삽목을 채취한 뒤 IBA 500 mg/L생장조절제에 침지하여 발근을 유도하는 것이 가장 유용한 것으로 나타났다.

This study was conducted to determine the three main factors [rooting time, plant growth regulators (PGRs), rooting medium] of cuttage for mass production of Sageretia thea. The experiment was observed on cuttage tray after 120 days and classified by rooting times, plant growth regulators, rooting medium. Materials were collected from natural habitats of S. thea from the Korean peninsula at March, July and September during 2019. As a result of the experiment, rooting times were showed statistically significant differences. March group's rooting rate and root length were 15 and 200% better than others. In PGRs experiment by concentration, There was no significant correlation between the control and experiment in terms of rooting rate. However, In the case of root length, IBA 500 mg/L, IBA 250 mg/L and IAA 1,000 mg/L groups were lengthened up to 170% compared to the control group, confirming statistically significant differences. As a result, we recommend treating cuttings with IBA 500 mg/L in March with Hardwood cutting.

키워드

과제정보

본 연구는 국립산림과학원 일반연구사업 "유용 산림약용자원의 이용 활성화를 위한 천연물 물질지도 작성 연구(II) (Project No. FP0400-2022-02-2022)"의 지원에 의해 이루어진 결과로 이에 감사드립니다.

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