Claim · model-written summary
Stomatal conductance decreased with increasing depth in the canopy.
- Taxon
- Acer campestre, Carpinus betulus and Quercus cerris
Carpinus betulus
Quercus cerris
Acer campestree0 - Organ / stage
- canopye1
- Outcome
- Stomatal conductancee1
- Direction
- decreasede1
- Qualifier
- with increasing depth in the canopye1
Not reportedMaterialGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“crowns ofAcer campestre, Carpinus betulus andQuercus cerris”
e1“Stomatal conductance decreased with increasing depth in the canopy”
Title
Stomatal activity within the crowns of tall deciduous trees under forest conditions
P. Eliáš Biologia Plantarum 1979. doi:10.1007/bf02902208
Other claims from this paper (8)
- Observation Stomatal conductance was highest in sunlit sun leaves in the upper part of the canopy.
- Observation The steepest decrease in stomatal conductance was in the upper canopy, in the intermediate zone between fully sunlit and fully shaded leaves.
- Mechanism The steepest decrease in stomatal conductance is attributed to the decline in leaf irradiance and in stomatal density.
- Association In codominant trees, conductance in shade leaves at the base of the crown was significantly lower than in sun leaves at the top of the crown.
- Observation In a dominant tree, Q. cerris, differences in stomatal conductance were small and mostly not significant.
- Association Variation in incident light determined the diurnal variation of stomatal conductance with respect to crown aspect.
- Observation Differences between sun leaves on the east and west facing aspects of the overstory crown of Q. cerris were demonstrated for several days.
- Association Variation in stomatal activity resulted from crown position in the forest stand and from leaf position within the canopy.