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Growth Response in Hydroponic Cultured Dracaena braunii Grown under Various Chloride Ion Concentrations

수경재배에서 제설제 염소이온 농도에 따른 개운죽 (Dracaena braunii)의 생육반응

  • Son, Hye-Mi (Department of Green Technology Convergence, College of Science Technology, Graduate School of Konkuk University) ;
  • Park, Ju-Young (Department of Green Technology Convergence, College of Science Technology, Graduate School of Konkuk University) ;
  • Yoon, Young-Han (Department of Green Technology Convergence, College of Science Technology, Konkuk University) ;
  • Ju, Jin-Hee (Department of Green Technology Convergence, College of Science Technology, Graduate School of Konkuk University)
  • 손혜미 (건국대학교 대학원 녹색기술융합학과) ;
  • 박주영 (건국대학교 대학원 녹색기술융합학과) ;
  • 윤용한 (건국대학교 녹색기술융합학과) ;
  • 주진희 (건국대학교 대학원 녹색기술융합학과)
  • Received : 2017.07.31
  • Accepted : 2017.09.15
  • Published : 2017.09.30

Abstract

The present study was conducted for the purpose of analyzing the growth response of Dracaena braunii treated with chloride ions and to evaluate its salt tolerance. Distilled water (CON) was spiked with 1 (C1), 2 (C2), 5 (C5), 10 (C10) and 15 g/L (C15) $CaCl_2$, respectively. Acidity (pH) and electrical conductivity of hydroponic solution, and leaf width, leaf length, root length, number of leaves, fresh weight, dry weight and the water content of Dracaena braunii were measured. Acidity and electrical conductivity remarkably increased commensurate with increasing concentrations of $CaCl_2$. Growth in the C1 treatment was better than that in CON, whereas the C10 or C15 treatments caused either slow growth or withering of the plants. Fresh weight, dry weight and water content were significantly decreased in response to $CaCl_2$ concentration, compared with those in the control. These results showed that $CaCl_2$ concentration less than 1 g/L may be used as a hydroponic solution for D. braunii, as long as the water quality is not too saline. The chlorine ion has a negative effect on the growth.

Keywords

Chloride ion;Deicing salt;Hydroponic culture;Dracaena braunii;Plant growth;Salt tolerance

Acknowledgement

Supported by : 한국연구재단

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