Claim · model-written summary
Dark respiration was linearly correlated with leaf nitrogen per area.
- Taxon
- Abutilon theophrasti and Ambrosia artemisiifolia
Abutilon theophrasti
Ambrosia artemisiifoliae1 - Outcome
- Dark respiratione0
- Comparator
- NLe0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentSettingDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Dark respiration (Rd) was linearly correlated with NL.”
e1“annual species Abutilon theophrasti and Ambrosia artemisiifolia”
Title
CO 2 Elevation, Canopy Photosynthesis, and Optimal Leaf Area Index
T. Hirose; D. D. Ackerly; M. B. Traw; et al. Ecology 1997. doi:10.2307/2265896
Other claims from this paper (10)
- Association Light-saturated leaf photosynthesis had a curvilinear relationship with leaf nitrogen per area.
- Intervention effect CO2 elevation significantly increased Pmax as a function of leaf nitrogen in both species.
- Intervention effect CO2 elevation slightly but significantly increased dark respiration in Abutilon.
- Intervention effect CO2 elevation had no significant effect on dark respiration in Ambrosia.
- Method / resource Modeled daily canopy photosynthesis agreed fairly well with growth-analysis estimates.
- Intervention effect CO2 elevation increased canopy photosynthesis by 30- 50%.
- Association Optimal LAI increased as nitrogen availability increased in the Abutilon model.
- Intervention effect Under limited nitrogen availability, elevated CO2 did not increase optimal LAI.
- Mechanism Higher leaf absorptance under elevated CO2 was proposed to lower optimal LAI through nitrogen limitation.
- Mechanism Higher dark respiration under elevated CO2 was proposed to lower optimal LAI through higher light compensation points.