Summary
A spring wheat cultivar (Triticum aestivum, cv Albis) was grown near Bern (Switzerland) in open-top chambers and open-field plots and exposed daily to different ozone concentrations in ambient air. Seasonal 8-hr/day (0900–1700) ozone concentrations were 0.020 ppm in charcoal-filtered air, 0.035 ppm in nonfiltered air, 0.103 ppm in ozone-enriched air and 0.040 ppm in ambient air. Growth, yield and various physiological parameters were studied. Grain yield was the most ozone-sensitive parameter, much more sensitive than straw yield or growth. In filtered air, grain yield was 9% higher than in nonfiltered air, and 127% higher than in ozone-enriched air. Differences in grain yield appeared to be linked to direct effects of ozone on CO2-fixation of flag leaves. Measurements of chlorophyll content and ethylene production revealed that stress from elevated ozone concentrations can affect processes associated with leaf senescence.
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© 1988 ECSC, EEC, EAEC, Brussels and Luxembourg
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Fuhrer, J., Grandjean, A., Lehnherr, B., Egger, A., Tschannen, W. (1988). Effects of Ozone in Ambient Air on Growth, Yield and Physiological Parameters of Spring Wheat. In: Mathy, P. (eds) Air Pollution and Ecosystems. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-4003-1_16
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DOI: https://doi.org/10.1007/978-94-009-4003-1_16
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-8276-1
Online ISBN: 978-94-009-4003-1
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