Claim · model-written summary
The Umax-light slope was steeper on high-temperature days.
- Outcome
- slopes of the Umax versus Ss relationshipse0
- Direction
- greatere0
- Comparator
- days when leaf temperature was lowe0
Not reportedTaxonMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentSettingValueQualifier
Verbatim
e0“the slopes of the Umax versus Ss relationships were greater on days when leaf temperature was high than on days when leaf temperature was low”
Title
U. Niinemets; W. Bilger; O. Kull; et al. Tree Physiology 1999. doi:10.1093/treephys/19.13.839
Other claims from this paper (10)
- Association Populus tremula Umax per leaf area scaled positively with seasonal light flux.
- Association Tilia cordata Umax per leaf area scaled positively with seasonal light flux.
- Mechanism Acclimation of leaf dry mass and nitrogen per area largely accounted for light-dependent Umax scaling.
- Observation Umax varied 2.5-fold over 20-30 degrees C.
- Association Maximum stomatal conductance scaled positively with seasonal light.
- Association Observed stomatal conductance declined as soil water content fell.
- Observation Umax was insensitive to prolonged water stress.
- Association Xanthophyll cycle carotenoids per chlorophyll scaled positively with integrated light.
- Association Xanthophyll cycle carotenoids per chlorophyll scaled negatively with daily minimum temperature.
- Association VAZ/Chl correlated best with light integrated over the preceding three days.