Diurnal photosynthetic performance of two oak species from two provenances in a Mediterranean and a central European common garden

Abstract

Abbreviations: DOY -day of the year; gs -stomatal conductance; OLY -Olympiada/Greece; PIabs -performance index on absorption basis; PNmax -light-saturated net photosynthetic rate; RC/ABS -active reaction centers on absorption base; SWA -Schwanheim/ Germany; WUE -water-use efficiency; φP0 -Fv/Fm -maximum quantum efficiency of the reduction of QA; ψE0 -the probability that an absorbed photon leads to a reduction further than QA.