The Korean Journal of Ecology
- Volume 22 Issue 2
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- Pages.79-83
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- 1999
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- 1225-0317(pISSN)
Effects of Ozone on Crops and Protective Effects of Ethylenediurea as an Anti-Oxidant
- Yun, Myoung-Hui (Department of Biological Science, Myongji University) ;
- Lee, Woong-Sang (Department of Biological Science, Myongji University)
- Published : 1999.04.01
Abstract
Phytotoxic effects of ozone and ethylenediurea (EDU) on soybean (Glycine max) and spinach (Spinacia oleracea) were observed by using open-top field chamber system (OTC). Gas exchange rates (photosynthesis. stomatal conductance and transpiration rates) of soybean plants were decreased by 20% to 30% by ambient ozone and resulted in 30% reduction of seed yields. In OTC. ambient ozone and 0.12