Testing of frost hardiness models for Pinus sylvestris in natural conditions and in elevated temperature

Ilkka Leinonen, Tapani Repo, Heikki Hänninen

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Two dynamic models predicting the development of frost hardiness of Finnish Scots pine (Pinus sylvestris L.) were tested with frost hardiness data obtained from trees growing in the natural conditions of Finland and from an experiment simulating the predicted climatic warming. The input variables were temperature in the first model, and temperature and night length in the second. The model parameters were fixed on the basis of previous independent studies. The results suggested that the model which included temperature and photoperiod as input variables was more accurate than the model using temperature as the only input variable to predict the development of frost hardiness in different environmental conditions. Further requirements for developing the frost hardiness models are discussed.
Original languageEnglish
Pages (from-to)159-168
Number of pages10
JournalSilva Fennica
Volume30
Issue number2-3
Publication statusPrint publication - 1996
Externally publishedYes

Keywords

  • Climatic warming
  • Dynamic models
  • Photoperiod
  • Scots pine
  • Temperature

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