Horticultural Science & Technology (원예과학기술지)

Korean Society of Horticultural Science (한국원예학회)
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Proper Light Intensity, Potting Media and Fertilization Level for Potted Hepatica asiatica Nakai

노루귀의 분화재배를 위한 적정 광도, 분용토 및 시비수준

  • Jeong, Kyeong Jin (Graduate School, Gyeongnam National University of Science and Technology) ;
  • Jeon, Hyeon Sik (Agronomy Oriental Medicine Resource, Gyeongnam National University of Science and Technology) ;
  • Chon, Young Shin (Department of Horticultural Science, Gyeongnam National University of Science and Technology) ;
  • Yun, Jae Gill (Department of Horticultural Science, Gyeongnam National University of Science and Technology)
  • 정경진 (경남과학기술대학교 대학원) ;
  • 전현식 (경남과학기술대학교 농학.한약자원부) ;
  • 천영신 (경남과학기술대학교 원예학과) ;
  • 윤재길 (경남과학기술대학교 원예학과)
  • Received : 2014.04.29
  • Accepted : 2014.10.23
  • Published : 2015.02.28
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Abstract

This study was conducted to select proper light intensity, pot media, and fertilization level for potted Hepatica asiatica Nakai native to Korea. The plants were grown under various light intensities (shading rate, 52, 82, 90, 97%) imposed by shading net. Plants grown with 52% shading showed a low survival rate (65%). Survival rate increased as shading increased, with over 80% survival in shading above 90%. Growth indexes such as fresh weight and leaf number did not show any significant difference between shading treatments. Plants grown in a soil mixture of decomposed granite:fertilizer-amended media:Kanumatsuchi (60:10:30, v/v/v) or river sand:fertilizer-amended media:bark (50:20:30) showed over 85% survival. However, plants grown in a soil mixture of river sand:fertilizer-amended media:Kanumatsuchi (50:30:20) or upland:river sand (40:60) showed very low survival, below 60%. Leaf number and plant height were the highest in a soil mixture of decomposed granite:fertilizer-amended media:Kanumatsuchi (60:10:30) as well. To select a proper fertilization level for H. asiatica, hyponex solution diluted 1,000- or 2,000-fold were applied weekly or biweekly. The survival rate was lowest at weekly application with 1,000-fold diluted solution, and no significant difference was observed between other treatments. In conclusion, H. asiatica exhibits preferences for very low light intensity and soil with air permeability, and is adaptable to a broad range of fertilization levels.

분화 노루귀(Hepatica asiatica Nakai)의 적정광도 및 분용토, 그리고 시비수준을 알아보기 위해 플라스틱 하우스안에서 실험을 수행하였다. 차광망을 이용하여 자연광을 52, 82, 90, 97%로 차광을 하고 노루귀를 재배하였다. 차광율이 낮은 처리구(52%)에서는 생존율이 65%로 낮고, 차광율이 높아질수록 생존율도 높아져 90% 이상의 차광하에서는 생존율이 80% 이상이었다. 생체중이나 엽수와 같은 생육지표에서는 처리간 유의적인 차이가 보이지 않았다. 적정 분용토 선발 실험에서는 마사토:유비상토:녹소토(60:10:30, v/v/v)와 강모래:유비상토:바크(50:20:30, v/v/v) 혼합토에서 85% 이상으로 생존율이 높았으며, 강모래:유비상토:녹소토(50:30:20, v/v/v)와 밝흙:강모래(40:60, v/v) 배합토에서는 생존율이 60% 이하로 낮았다. 엽수와 초장에서도 마사토:유비상토:녹소토(60:10:30, v/v/v)에서 가장 좋았다. 적정 시비수준을 찾기 위해 Hyponex 액비를 1,000배 또는 2,000배로 희석하여 1회/1주, 또는 1회/2주로 처리했다. 생존율이 현저하게 떨어졌던 처리구는 1,000배 희석액을 주 1회 관주처리했을 때이었고, 다른 처리구에서는 처리간 유의적인 차이가 보이지 않았다. 결론적으로 노루귀는 매우 낮은 광도에서도 살아남을 수 있는 내음성이 매우 뛰어난 식물이며, 배양토로는 배수성과 통기성이 좋은 용토를 선호하고, 상당히 폭넓은 시비수준에 적응할 수 있는 식물이라고 생각되었다.

Keywords

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