Leaf morphology and gas exchange in holm oak (Quercus ilex L.) trees in different environments
2002
Lakso, K. (University of Oulu, (Finland). Department of Biology) | Paoletti, E. | Huttunen, S.
Two holm oak (Quercus ilex L.) sites in Tuscany, Central Italy, were studied in July 2000. Leaf morphological characteristics (area, dry weight, specific dry weight, water content, epicuticular wax amount, stomatal density) and leaf fluorescence were measured. Ozone flux into the leaves was calculated on a stomatal conductance basis. Among the measured parameters, only stomatal density and wax amount significantly differed between the sites. This response might indicate an adaptation to air pollutants, of which tropospheric ozone might be of the greatest importance
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