Chilling and forcing requirements for foliage bud burst of European beech (Fagus sylvatica L.) differ between provenances and are phenotypically plastic

K. Kramer*, Alexis Ducousso, D. Gömöry, Jon Kehlet Hansen, Lucia Ionita, Mirko Liesebach, Adrian Lorent, Silvio Schüler, Malgorzata Sulkowska, S.M.G. de Vries, Georg von Wühlisch

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

30 Citations (Scopus)

Abstract

The timing of foliar budburst is an important component of the fitness of trees. Adaptation of budburst to local temperatures and phenotypic plasticity in the date of budburst to changes in temperature can therefore be expected. In this study, we analysed provenance trials of European beech (Fagus sylvatica
L.) established over a wide geographic and climatic range in Europe. The analysis was based on a phenological model that represents the key processes at budburst phenology of temperate- and boreal zone deciduous trees.Weconclude that adaptive differences exist between provenances in the critical chillingand
forcing requirements triggering budburst. Moreover, it is likely that these provenances show a plastic response to local environmental conditions for these two factors. Chilling- and forcing temperature requirements are key traits determining a tree’s response of the date of foliar budburst to temperature.
We infer from our results that trees would be able to adjust this response when climatic conditions change. Implications for climate change assessment studies and suggestions to incorporate this second order phenotypic plasticity in phenological models are discussed.
Original languageEnglish
Pages (from-to)172-181
JournalAgricultural and Forest Meteorology
Volume234-235
DOIs
Publication statusPublished - 2017

Fingerprint Dive into the research topics of 'Chilling and forcing requirements for foliage bud burst of European beech (Fagus sylvatica L.) differ between provenances and are phenotypically plastic'. Together they form a unique fingerprint.

Cite this