Journal of Sericultural and Entomological Science (한국잠사곤충학회지)

Korean Society of Sericultural Science (한국잠사학회)
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Optimal Cutting Conditions for the Production of Cudriania tricuspidata Bureau

꾸지뽕나무 묘목생산을 위한 최적 꺽꽂이 조건

  • Sung, Gyoo Byung (Department of Agricultural Biology, National Academy of Agricultural Science, Rural Development Administration) ;
  • Kim, Ki Young (Department of Agricultural Biology, National Academy of Agricultural Science, Rural Development Administration) ;
  • Kim, Hyun Bok (Department of Agricultural Biology, National Academy of Agricultural Science, Rural Development Administration) ;
  • Ji, Sang Duk (Department of Agricultural Biology, National Academy of Agricultural Science, Rural Development Administration)
  • 성규병 (농촌진흥청 국립농업과학원) ;
  • 김기영 (농촌진흥청 국립농업과학원) ;
  • 김현복 (농촌진흥청 국립농업과학원) ;
  • 지상덕 (농촌진흥청 국립농업과학원)
  • Received : 2012.08.13
  • Accepted : 2012.10.18
  • Published : 2012.12.30
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Abstract

Most of Cudriania tricuspidata Bureau saplings in Korea have been produced by crown division. But the production of Cudriania tricuspidata B. saplings by this method is very low in efficiency and in uniformity. Therefore, to develop Cudriania tricuspidata B. saplings production system by cutting method which is suitable for mass production, several conditions on rooting and growth of cuttings were investigated. The rooting ability of cuttings varied according to temperature on the bed, length, thickness of the hard wood cutting and rooting agent application. Of different concentration of rooting agent, the 5,000 ppm of 1-naphthalenacetic acid(NAA) and Indole butyric acid(IBA) were found to be the highest in rooting of hardwood cuttings; other concentration were in order as follows; 2,500, 1,000 and 10,000 ppm in concentration of rooting agents. The shading ratio of polyethylene film showed the highest rooting ratio of the softwood cuttings at 55%.

최근 수요가 늘어나고 있는 꾸지뽕나무 묘목의 번식을 위하여, 비교적 용이하고 대량생산이 가능한 묵은 가지 및 새순 삽목법에 의한 안정적인 뽕나무묘목 생산체계를 확립하기 위하여 본 실험을 실시하였다. 꾸지뽕나무의 묵은 가지 삽목 최적조건을 구명하기위하여 삽수의 길이, 굵기, 발근처리제 농도를 달리하여 처리한 결과, 삽수의 길이는 15 cm, 굵기는 중간정도, 발근처리제는 NAA, IBA 다 같이 5,000 ppm에서 가장 발근률이 높고 발근 후의 생장이 좋았다. 또한, 새순 삽목법을 개발하기 위하여, 삽목상의 형태, 차광망의 차광정도, 새순당 잎의 수를 달리하여 삽목 후 발근 및 발근후의 생장을 조사한 결과, 삽목상의 형태는 2중 터널을 설치하고 1.5 m 위에 차광망을 설치하는 B 타입의 경우가 좋았고, 단일 터널 위에 차광망을 설치하는 A 타입의 경우는 발근률이 매우 낮았다. 차광망의 차광정도는 55% 차광구에서 발근이 가장 좋고, 55% 이상이거나 무차광구에서는 발근률이 낮았다.

Keywords

References

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