현장농수산연구지 (Journal of Practical Agriculture & Fisheries Research)

국립한국농수산대학교 교육개발센터 (Korea National University of Agriculture and Fisheries)
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여름철 시설 토마토 재배 시 Carbon Dioxide 처리가 광합성, 엽록소 형광, 항산화 효소 발현에 미치는 영향

The effect of Photosynthesis, Chlorophyll Fluorescence, and Anti-Oxidation Enzyme Activity on Carbon Dioxide Treatment in Summer Greenhouse Cultivation for Tomato (Solanum Lycopersicum)

  • Woo, Y.H. (Korea National College of Agriculture & Fisheries) ;
  • Hong, K.H. (Korea National College of Agriculture & Fisheries) ;
  • Oh, D.G. (Korea National College of Agriculture & Fisheries) ;
  • Lee, K.H. (Korea National College of Agriculture & Fisheries) ;
  • Kim, D.E. (Korea National College of Agriculture & Fisheries)
  • 발행 : 2016.08.30
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초록

여름철 토마토 시설 재배 시 CO2 시용에 의한 고온적응성 향상을 구명하고 그 가능성을 검토하고자 실시하였다. CO2 시용 농도별 엽록소 형광을 측정한 결과 Fm/Fo과 Fv/Fm은 1000ppm 처리가 타 처리에 비하여 높았으며, Fo은 낮았다. 이는 1000ppm의 CO2 처리는 다른 처리에 비하여 고온 적응성이 높았음을 보여 주고 있다. 동일한 기온 조건하(30℃, 40℃)에서 광합성률은 CO2 농도에 따라 증가하였으며, 고온상태인 40℃ 조건하에서도 1000ppm의 CO2 시용은 30℃ 조건보다 광합성률은 낮았으나 그 값은 약 18.5μmolm-2s-1이였다. 슈퍼 도태랑(모모타로), 미니 찰 두 품종 모두 CO2 농도가 높을수록 항산화 효소인 Superoxide Dismutase 와 Peroxidase의 활성은 높았다. 미니찰 품종에서 CO2 농도와 온도변화에 따른 엽록소 형광 Fo의 변화양상을 조사하여 고온한계 온도를 추정한 결과 500ppm은 41℃, 1000ppm은 43℃였다.

The present study was performed to examine the high temperature adaptability with CO2 treatment for tomato under the condition of greenhouse cultivation during summer season. The plants with the CO2 concentration of 1000 ppm recorded higher scores in Fm/Fo and Fv/Fm but lower score in Fo than others through the measurement of chlorophyll fluorescence, which implicated that the plants with the CO2 concentration of 1000 ppm had more adaptability to high temperature than the others. At the condition of the same air temperature as 30℃ and 40℃, the photosynthetic rate was increased with the increase of CO2 concentration. When in the high air temperature state of 40℃, although the photosynthic rate was low in comparison with 30℃, its value was about 18.5umolm-2s-1 in case of 1000ppm. The higher concentration of CO2 made the more activated anti-oxidation enzyme (superoxide dismutase and peroxidase) for the both cultivars as 'momotaro' and 'minichal'. The cultivar of 'minichal' performed the high temperature limit as 41℃ at the CO2 condition of 500 ppm and 43℃ at the CO2 condition of 1000 ppm through the estimation on the variation of chlorophyll fluorescence Fo by CO2 concentrations.

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