Journal of Practical Agriculture & Fisheries Research (현장농수산연구지)

Korea National University of Agriculture and Fisheries (국립한국농수산대학교 교육개발센터)
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Effects of Shading Rate, Rooting Media and Plant Growth Regulators on Rooting of Veronoca L. by Cuttings

삽목 번식 시 차광정도, 삽목용토 및 생장조절제 처리가 꼬리풀(Veronica L.)의 발근에 미치는 영향

  • Cheon Young, Song (Department of Horticulture, Korea National University of Agriculture and Fisheries) ;
  • Ja Young, Moon (Department of Horticulture, Korea National University of Agriculture and Fisheries) ;
  • Jung Won, Sung (Department of Crops and Forestry, Korea National University of Agriculture and Fisheries) ;
  • Byeong Seon, Park (Division of Garden material Research, Sejong National Arboretum) ;
  • Jae Ik, Nam (Division of Garden material Research, Sejong National Arboretum) ;
  • Jeong Min, Kim (Division of Garden material Research, Sejong National Arboretum)
  • 송천영 (국립한국농수산대학교 원예학부) ;
  • 문자영 (국립한국농수산대학교 원예학부) ;
  • 성정원 (국립한국농수산대학교 작물.산림학부) ;
  • 박병선 (세종국립수목원 정원소재연구실) ;
  • 남재익 (세종국립수목원 정원소재연구실) ;
  • 김정민 (세종국립수목원 정원소재연구실)
  • Received : 2022.11.29
  • Accepted : 2022.12.09
  • Published : 2022.12.26
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Abstract

This study was conducted to develop a mass production for a commercial use by cutting of 4 kinds of V. glabrifolia Kitag., V. pusanensis Y.N.Lee, V. glabrifolia Kitag. × V. Spicata 'Alba' and V. spicata 'Ulster Blue Dwarf' × V. longifolia. Veronica L. Effects of shade, media and concentrations of plant growth regulators on the rooting of Veronica L. were examined. The rooting rate of V. glabrifolia Kitag. was higher as a 60% than the V. pusanensis Y.N.Lee as a 20% in the control of commercial media. In shading treatment, the rooting rate was highest at 30% or 60% shading, and the 30% shading was the best in number of root and root length, but the 90% shading was lower than no shading treatment. For cutting media, the rock wool and 100% perlite increased the rooting rate by more than 10% compared to commercial media, and increased the number of roots by 2 or 3 times. However the Cocopeat of media was lower of rooting rate, root number, and root length compared to another treatment. In the plant growth regulator treatment, the rate of rooting increased in all treatment compared to control, and was highest at IBA 1,000mg·L-1 as a 82.2% and NAA 200 or 400mg·L-1 as a 82.2% or 84.4% respectively, in the V. glabrifolia Kitag. × V. Spicata 'Alba'. However, the root number and root length was decreased as the concentration of growth regulators increased.

큰산꼬리풀(V. glabrifolia Kitag.), 부산꼬리풀(V. pusanensis Y.N.Lee), 큰산꼬리풀 교배조합 (V. glabrifolia Kitag. × V. Spicata 'Alba')과 시판종 교배조합 (V. spicata 'Ulster Blue Dwarf' × V. longifolia) 등 4종에 대한 차광정도, 삽목용토 및 생장조절물질이 삽수의 발근에 미치는 영향를 알아보았다. 대조처리인 상토에서의 큰산꼬리풀의 발근율은 60%로 높은 편이었으나 부산꼬리풀은 22,2%로 낮았다. 모든 처리종에서 차광처리에 따른 발근율은 30%~60% 차광에서 높게 나타났고, 근수와 근장은 30% 차광처리에서 좋았으나 90% 차광처리는 무차광보다 저조하였다. 삽목용토는 모든 꼬리풀 종에서 암면과 펄라이트 100%가 인공배양토에 비하여 발근율이 10%이상 증가하였고, 근수도 2~3배 정도 증가하였으나 코코피트의 발근율, 근수, 근장은 모두 낮게 나타났다. 모든 꼬리풀 종에서 생장조절물질 처리의 발근율은 무처리보다 증가하였다. 큰 산꼬리풀 교배조합의 발근율은 IBA 1,000mg·L-1은 82,2%, NAA 200mg·L-1은 82,2%, 400mg·L-1은 84,4%로 높게 나타났으나, 근수 및 근장은 IBA와 NAA 농도가 증가함에 따라 감소하는 경향을 보였다.

Keywords

Acknowledgement

본 연구는 국립세종수목원의 재원으로 지역특화 정원식물 스마트팜 증식기술 개발(베로니카속, 조팝나무속) 용역연구지원으로 이루어진 것임.

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