A fifty-year-old conceptual plant dormancy model provides new insights into dynamic phenology modelling

  • Heikki Hänninen University of Helsinki
  • Robin Lundell
  • Olavi Junttila
Keywords: Bud burst, chilling, climate warming, dormancy, frost damage, growth onset


Vegis’ (1964) conceptual plant dormancy model has been largely ignored in dynamic models of growth onset phenology. We formulate a dynamic model including the phenomenon assumed in the conceptual model and show that the phenomenon 1) potentially explains previous contradictory results of model testing and 2) is crucial with respect to the effects of climate warming on boreal trees.
2B Distribution of resources and growth in plants