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한국생태학회 / v.20, no.4, 1997년, pp.239-244 
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오존 환경에 대한 잡종 포플러 묘목의 가스 교환과 생장에 관한 연구
( Ozone-environmental Effects on Gas Exchange and Growth of Hybrid Poplar (Populus trichocarpa $ imes$ P. deltoides) Seedlings ) |
| 우수영; 산림청 임목육종연구소;
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| 초 록 |
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| Hybrid poplar (Populus trichocarpa $ imes$ P. deltoides) clones were fumigated with ozone. Fumigation was applied for 6 to 8 hours each day for approximately 3 months at ozone concentrations of 0.090 to 0.115 ppm using by open-top chambers. Growth and biomass of hybrid poplar seedlings were reduced by ozone exposure. Mean percentage of falling leaves in ozone-treated plant was 6 times higher than that of charcoal-filtered plant. Among physiological responses, rate of photosynthesis, stomatal conductance, transpiration and initial Rubisco activity were significantly lower in seedlings grown in ozone environment compared seedlings grown in charcoal-filtered air. All these physiological results supported that biochemical process to be a key feature to understand reduction in photosynthesis. |
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| 키워드 |
| Ozone environment;Poplar;Stomatal conductance;Photosynthesis;Rubisco; |
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The Korean Journal of Ecology / v.20, no.4, 1997년, pp.239-244
한국생태학회
ISSN : 1225-0317
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199711919962651)
언어 : 한국어 |
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| 논문 제공 : KISTI 한국과학기술정보연구원 |
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