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Evaluation of Salt Tolerance of Liriope platyphylla and Pachysandra terminalis to Deicing Salt (CaCl2) Concentration in Winter

겨울철 제설제(CaCl2)농도처리에 따른 맥문동과 수호초의 내염성 평가

  • Ju, Jin-Hee (Dept. of Green Technology Convergence, Konkuk University) ;
  • Hui, Xu (Dept. of Forest Science, Graduate School, Konkuk University) ;
  • Park, Ji-Yeon (Dept. of Forest Science, Graduate School, Konkuk University) ;
  • Choi, Eun-Young (Dept. of Agriculture Science, Korea National Open University) ;
  • Yoon, Yong-Han (Dept. of Green Technology Convergence, Konkuk University)
  • 주진희 (건국대학교 녹색기술융합학과) ;
  • ;
  • 박지연 (건국대학교 산림과학과 대학원) ;
  • 최은영 (한국방송통신대학 농학과) ;
  • 윤용한 (건국대학교 녹색기술융합학과)
  • Received : 2016.02.15
  • Accepted : 2016.08.27
  • Published : 2016.08.30

Abstract

It is important to know know deleterious impact of deicing salt on plants for guidelines of planting along roads. The aim of this study was to determine the effect of calcium chloride ($CaCl_2$) on the growth and physiological characteristics of Liriope platyphylla and Pachysandra terminalis. The plants were grown from November of 2015 to March of 2016 in pots containing growing media with $CaCl_2$ at 0% (Control), 0.5%, 1.0%, 3.0%, and 5.0% (based on the weight). While plant growth and photosynthetic activity were significantly decreased in both plant species grown on the media with $CaCl_2$, the degree of sensitivity to $CaCl_2$ differed. The plant growth of Liriope platyphylla was considerably injured under higher than 3.0% of $CaCl_2$, whereas Pachysandra terminalis was all dead under higher than 1.0% of $CaCl_2$. This results indicate that Liriope platyphylla has higher degree of tolerance to the deicing salt than Pachysandra terminalis.

본 연구는 겨울철 제설제 ($CaCl_2$) 농도처리에 따른 맥문동(Liriope platyphylla)과 수호초(Pachysandra terminalis)의 내염성을 평가하고자 수행하였다. 국내에서 제설제로 가장 많이 사용하는 염화칼슘을 각각 0%(Control), 0.5%, 1.0%, 3.0%, 5.0%로 처리한 실험구에 2015년 11월에 맥문동과 수호초를 정식한 후, 이듬해 이른 봄인 2016년 3월에 내염성을 평가하기 위해 초장, 엽장, 엽폭, 엽형지수, 생체중, 건물중, 엽록소함량, 광합성률, 기공전도도, 증산율 등을 측정하였다. 초장, 엽장, 엽폭, 엽형지수, 생체중, 건물중, 엽록소함량, 광합성률, 기공전도도, 증산율 등은 제설제 처리농도가 높을수록 감소되는 것은 두 식물이 동일하였으나, 맥문동이 수호초보다 좀 더 안정된 생육 및 생리적 특징을 보였다. 무엇보다, 맥문동은 3.0% 이상에서, 수호초는 1.0% 이상의 농도처리에서 생존이 불가능해 맥문동이 수호초보다 내염성이 높은 것으로 판단되었으며, 도시 내 제설제 피해지역에 활용이 가능할 것으로 기대된다.

Keywords

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