Claim · model-written summary
Freeze-thaw cycles resulted in considerable native PLC in upper branches of tall conifers
- Taxon
- tall conifer speciest0
- Treatment
- freeze-thaw cyclese1
- Outcome
- native PLCe1
- Direction
- increaseinferrede1
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Verbatim
t0“native embolism in upper branches of four tall conifer species”
e1“freeze-thaw cycles resulted in considerable native PLC”
Title
An annual pattern of native embolism in upper branches of four tall conifer species
Katherine A. McCulloh; Daniel M. Johnson; Frederick C. Meinzer; et al. American Journal of Botany 2011. doi:10.3732/ajb.1000503
Other claims from this paper (8)
- Observation Upper branches showed hydraulic recovery in spring
- Intervention effect A moderate increase in native embolism was observed after an unusually hot period in August
- Observation The September recovery occurred despite decreases in leaf and stem water potentials
- Association Leaf and stem water potentials decreased in September compared with August
- Mechanism Branch recoveries must have occurred through water absorption through needles and/or refilling under negative pressure rather than by transport from roots
- Association Native embolism values correlated strongly with air temperature of the preceding 10 d, excluding August
- Association Branches with lower wood density had higher specific conductivity than branches with higher wood density in three species
- Association Branches with lower wood density did not have greater native PLC than branches with higher wood density in three species