Age-related phenological and anatomical response of European beech (Fagus sylvatica L.) under severe summer drought conditions

Dimitrios Tsalagkas, Hanuš Vavrčík, Vladimír Gryc and Kyriaki Giagli
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Dimitrios Tsalagkas: Department of Wood Science, Faculty of Forestry and Wood Technology, Mendel University in Brno, Brno, Czech Republic
Hanuš Vavrčík: Department of Wood Science, Faculty of Forestry and Wood Technology, Mendel University in Brno, Brno, Czech Republic
Vladimír Gryc: Department of Wood Science, Faculty of Forestry and Wood Technology, Mendel University in Brno, Brno, Czech Republic
Kyriaki Giagli: Department of Wood Science, Faculty of Forestry and Wood Technology, Mendel University in Brno, Brno, Czech Republic

Journal of Forest Science, 2024, vol. 70, issue 9, 458-475

Abstract: The year 2018 was distinguished by a warm summer with extended periods of low or no precipitation. In this context, we investigated the intra-annual dynamics of xylem differentiation phases and quantitative vessel anatomy to analyse the age effect on the xylem formation response of younger (50 years) and older (135 years) mature European beech trees under summer drought conditions. The xylem formation dynamics of young and old trees were performed on microcores collected at weekly intervals in the Rájec-Němčice ecological station in the South Moravia region (Czech Republic). The onset of xylem formation was found identical in both age trees, and most of the trees ceased their enlargement by the end of July, which is attributed to the harsh environmental conditions of this month. Young trees were characterised by a 10-day extended enlargement period and a higher growth rate, resulting in more vessels and a wider tree-ring width. No significant linkage was found between intra-annual environmental conditions of the 2018 year or age effect and the vessel anatomy traits.

Keywords: climate change; vessel morphology; wood formation; xylem phenology; xylogenesis (search for similar items in EconPapers)
Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnljfs:v:70:y:2024:i:9:id:16-2024-jfs

DOI: 10.17221/16/2024-JFS

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