Claim · model-written summary
Fertilization increased branch leaf area by 38%.
- Taxon
- loblolly pine
Pinus taedat0 - Treatment
- Fertilizatione0
- Outcome
- branch leaf areae0
- Direction
- increasede0
- Value
- 38e0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fertilization and elevated [CO2] increased branch leaf area by 38 and 13%, respectively”
t0“loblolly pine”
Title
C. A. Maier; K. H. Johnsen; J. Butnor; et al. Tree Physiology 2002. doi:10.1093/treephys/22.15-16.1093
Other claims from this paper (18)
- Intervention effect Elevated CO2 increased branch leaf area by 13%.
- Intervention effect Fertilization and elevated CO2 had additive effects on branch leaf area.
- Intervention effect Improved nutrition increased flush density.
- Intervention effect Elevated CO2 decreased flush density.
- Intervention effect Fertilization increased foliar nitrogen concentration.
- Intervention effect Fertilization had no consistent effect on foliar leaf mass or light-saturated photosynthesis.
- Association Photosynthesis and leaf nitrogen correlation varied seasonally.
- Intervention effect Elevated CO2 had no effect on leaf mass and nitrogen measures.
- Intervention effect Elevated CO2 increased light-saturated photosynthesis by 82% on average.
- Intervention effect Elevated CO2 increased photosynthetic quantum efficiency.
- Intervention effect Elevated CO2 lowered the light compensation point.
- Intervention effect Elevated CO2 did not change photosynthetic response to intercellular CO2.
- Observation Photon flux density was 60% of full sun in the upper canopy.
- Observation Photon flux density was 54% of full sun in the middle canopy.
- Observation Photon flux density was 33% of full sun in the lower canopy.
- Association Leaf mass, nitrogen per area, photosynthesis and respiration decreased with crown depth.
- Association Growth enhancement under elevated CO2 depended on fertilization.
- Observation CO2 by fertilization and treatment by canopy interactions had little effect on physiological parameters.