Claim · model-written summary
The lowest predawn leaf water potential of Quercus suber was -1.8 MPa.
- Taxon
- Quercus suber
Quercus subere0 - Outcome
- lowest predawn leaf water potentiale3
- Value
- -1.8 MPae3
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sap flux density in branches, leaf transpiration, stomatal conductance and leaf water potentials were measured in 16-year-old Quercus suber L. trees growing in a plantation in southern Portugal”
e3“The lowest predawn leaf water potential recorded during this period was -1.8 MPa”
Title
Regulation of transpirational water loss in Quercus suber trees in a Mediterranean-type ecosystem
D. O. Otieno; M. W. T. Schmidt; C. Kurz-Besson; et al. Tree Physiology 2007. doi:10.1093/treephys/27.8.1179
Other claims from this paper (7)
- Association As soil water became limiting, leaf water potential, stomatal conductance and leaf transpiration declined significantly in Quercus suber.
- Association Predawn leaf water potential of Quercus suber reflected soil water potential at 1-m depth in most trees.
- Observation Mean maximum stomatal conductance of Quercus suber declined from 300 to 50 mmol m(-2) s(-1).
- Observation Transpiration of Quercus suber was reduced from 6 to 2 mmol m(-2) s(-1).
- Association Stomatal conductance of Quercus suber was strongly coupled to changes in soil water content.
- Observation Midday leaf water potentials of Quercus suber did not differ among trees.
- Mechanism Leaf water potential changes in Quercus suber are regulated through stomatal closure, diurnally and seasonally.