A model to simulate response of plant stomata to environmental conditions

Roni Avissar, Patricia Avissar, Ytzhaq Mahrer, Ben Ami Bravdo

Research output: Contribution to journalArticlepeer-review


In order to simulate plant transpiration under different field climatic conditions we have developed and verified a semi-empirical model for predicting the stomatal response to solar global radiation, leaf temperature, vapour pressure difference between the leaf and ambient air, ambient air CO2 concentration and soil water potential. The transpiration and the stomatal relative conductance of a Nicotania Tabaccum var "samsun" plant leaves were measured in a laboratory apparatus and compared to those predicted by the model: good agreement was obtained between them for the different investigated cases. The model was incorporated in a numerical greenhouse microclimate model and its effects on the canopy microclimate are discussed here.

Original languageEnglish (US)
Pages (from-to)21-29
Number of pages9
JournalAgricultural and Forest Meteorology
Issue number1
StatePublished - Feb 1985
Externally publishedYes

ASJC Scopus subject areas

  • Global and Planetary Change
  • Forestry
  • Agronomy and Crop Science
  • Atmospheric Science


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