Antioxidative and photoprotective defence compounds in tree foliage and their potential relationship to meteorological conditions, site factors, and ozone exposure : Poster presented at the 22nd Biannual Meeting "Forests under Anthropogenic Pressure Effects of Air Pollution, Climate Change and Urban Development". IUFRO Research Group 7.01 "Impact of Air Pollution and Climate Change on Forest Ecosystems", fom September 10-16, 2006 at Riverside, USA
