FLOWER RESEARCH JOURNAL (화훼연구)

The Korean Society for Floricultural Science (한국화훼학회)
권호 표지

Injury Symptoms of Orchids by Sulfur dioxide Gases in Greenhouse

시설내 아황산가스에 의한 난의 피해 증상

  • Lee, Young-Ran (National Institute of Hortcultural & Herbal Science, R.D.A.) ;
  • Choi, Seong-Youl (National Institute of Hortcultural & Herbal Science, R.D.A.) ;
  • Kwon, Oh-Keun (National Institute of Hortcultural & Herbal Science, R.D.A.) ;
  • Huh, Eun-Joo (National Institute of Hortcultural & Herbal Science, R.D.A.)
  • Received : 2009.08.14
  • Accepted : 2009.11.06
  • Published : 2009.12.31

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Abstract

This study was conducted to determine injury symptoms of orchids by sulfur dioxide gases, three orchid plants (Phalaenopsis, Cymbidium, Oncidium) were exposed to sulfur dioxide gas in an enclosed growth chambers. Sulfur dioxide gases treatments consist of five different concentrations (0, 5, 10 25, and 50 ppm) and plant exposure of 18 hours with $25{\pm}5^{\circ}C$ air temperature and $50{\pm}5%$ relative humidity. SPAD values for chlorophyll content and percent leaf injury as well as leaf ion exudation were measured before and after the gas treatments. Phalaenopsis leaves showed 23.3% leaf injury at 10 ppm sulfur dioxide gas, whereas Cymbidium and Oncidium showed 4.0 and 4.4% leaf injury under 25 ppm or less, respectively. Major leaf injury symptoms appeared as initial water-soaking under side of the leaf, followed by rapidly progressed complete leaf discolorization or chlorosis. As the gas concentration increased, the SPAD value decreased while ion exudation increased. Cymbidium and Oncidium were resistant to sulfur dioxide gas than Phalaenopsis.

본 연구는 난과 식물의 아황산가스 피해증상을 정확하게 알기 위해 팔레놉시스, 심비디움, 온시디움을 이용하여 밀폐된 챔버에서 수행하였다. 가스처리는 아황산가스 농도를 0, 5, 10, 25, 50 ppm으로 하였고, 노출시간은 18시간, 온도 $25{\pm}5$, 습도 $50{\pm}5%$로 하였다. SPAD를 이용하여 가스처리 전후의 엽록소 함량을 측정하였으며, 피해엽율과 이온유출량을 조사하였다. 팔레놉시스의 경우 10ppm에서 피해엽율이 23.3%로 나타났고 심비디움, 온시디움의 경우 25ppm에서 각각 4.0, 4.4%의 피해가 나타나서 저항성이 강하다고 판단되었다. 주요증상은 초기에 잎의 뒷면이 수침상으로 나타났다가 급격히 잎이 황색으로 변하거나 탈색된다. 이온유출량은 아황산가스 농도가 높을수록 심하게 나타났고, 엽록소 함량은 아황산가스 농도가 높을수록 낮아졌다.

Keywords

References

  1. Chae, E.S., Y.B. Lee, S.H. Park, and G.Y. Baek 1997. Injury symptoms and air purification ability of foliage plants exposed to $SO_{2}$ and $NO_{2}$. J. Kor. Soc. Hort. Sci. 38:761-755.
  2. Han, G.H. 1975. The study on damage physiology susceptibility and reduction of crops to sulfur dioxide gas. JKSABC 16:146-165.
  3. Han, S.W., Y.Y. Lee, H.Y. Kang, Y.G. Kang, G.Y. Bae, and J.S. Lee. 1999. Difference of tolerance and absorption rate in Cymbidium exposed to $SO_{2}$ and $O_{3}$. Kor. J. Hort. Sci. & Technol, 17(suppl. ):254(Abstr.).
  4. Han, S.W. and J.S. Lee. 2002. Purification efficiency of $O_{3}$ and $SO_{2}$ by oriental orchids. J. Kor. Soc. Hort. Sci. 43:487-491.
  5. Kim, B.Y. and K.H. Han. 1978. Effect of sulfur dioxide gas on soybean plant. J. Kor. Soc. Fert. 11:105-112.
  6. Kim, T.W. 1976. Influences of air pollution on the growth of ornamental trees. J. Kor. For. Soc. 29:20-53.
  7. Kim, J.G., J.O. Bae, J.B. Kim, and J.J. Park. 1986. A study on the resistance and the sensitivity of $SO_{2}$ gas. J. KAPRA 2:1-8.
  8. Lee, I.K. and Y.C. Kim. 1994. Effect of sulfur dioxide gas and abscisic acid pretreatment on physiological susceptibility and growth damages of coniferous seedings. J. Kor. For. Soc. 83:331-343.
  9. Lee, J.S., Y.H. Kim, and H.S. Noh. 1998. Selection of old agricultural crops to create good urban environment. J. Kor. Soc. Hort. Sci. 39:849-853.
  10. Noh, H.S., K.K. Lee, S.H. Park, S.H. Bae, and J.S. Lee. 1998. Screening of tolerance to $O_{3}$ and $SO_{2}$ in native flowers. Kor. J. Hort. Sci. & Tech. 16:413(Abstr.).
  11. National Institute of Agricultural Science and Technology. 1985. The crops pollution damage analysis. Rural Development Administration. p. 7.