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

Autor:	Holland V; Department of Ecology, Evolution and Diversity, Goethe University Frankfurt, Max-von-Laue-Str. 13, D-60438 Frankfurt, Germany., Reininger N; Department of Ecology, Evolution and Diversity, Goethe University Frankfurt, Max-von-Laue-Str. 13, D-60438 Frankfurt, Germany., Bantis F; Department of Ecology, Evolution and Diversity, Goethe University Frankfurt, Max-von-Laue-Str. 13, D-60438 Frankfurt, Germany., Brüggemann W; Department of Ecology, Evolution and Diversity, Goethe University Frankfurt, Max-von-Laue-Str. 13, D-60438 Frankfurt, Germany.; Senckenberg Biodiversity and Climate Research Center, Senckenberganlage 25, D-60325 Frankfurt, Germany., Radoglou K; Department of Forestry and Management of Environment and Natural Resources, Pantazidou 193, GR-68200 Orestiada, Greece., Fotelli MN; Forest Research Institute, Hellenic Agricultural Organization Dimitra, Vassilika, GR-57006 Thessaloniki, Greece.
Jazyk:	angličtina
Zdroj:	Photosynthetica [Photosynthetica] 2022 May 12; Vol. 60 (3), pp. 326-336. Date of Electronic Publication: 2022 May 12 (Print Publication: 2022).
DOI:	10.32615/ps.2022.023
Abstrakt:	Oaks may contribute to the stabilization of European forests under climate change. We utilized two common gardens established in contrasting growth regimes, in Greece (Olympiada) and Germany (Schwanheim), to compare the diurnal photosynthetic performance of a Greek and an Italian provenance of two Mediterranean oaks ( Quercus pubescens and Q. frainetto ) during the 2019 growing season. Although the higher radiation in the southern common garden led to a strong midday depression of chlorophyll a fluorescence parameters (maximum quantum efficiency of PSII, performance index on absorption basis), comparable light-saturated net photosynthetic rates were achieved in both study areas. Moreover, both species and provenances exhibited analogous responses. Q. pubescens had enhanced chlorophyll a fluorescence traits but similar photosynthetic rates compared to Q. frainetto , whereas the provenances did not differ. These findings indicate the high photosynthetic efficiency of both oaks under the current climate in Central Europe and their suitability for assisted migration schemes. Competing Interests: The authors declare that they have no conflict of interest. (Copyright: © 2022 Holland et al.)
Databáze:	MEDLINE
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