Claim · model-written summary
Ozone lacked that independent grain protein yield effect.
- Taxon
- wheat
Triticum aestivumt0 - Treatment
- O 3e0
- Outcome
- grain protein yielde0
- Direction
- no_changeinferrede0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“elevated CO 2 , but not O 3 , had a significant negative effect on grain protein yield also in the absence of effects on grain yield”
t0“wheat”
Title
Yield vs. Quality trade‐offs for wheat in response to carbon dioxide and ozone
Håkan Pleijel; Johan Uddling Global Change Biology 2011. doi:10.1111/j.1365-2486.2011.2489.x
Other claims from this paper (8)
- Association A 10% ozone-associated yield change corresponded to 8.1% grain protein yield change.
- Association A 10% CO2-associated yield change corresponded to 7.5% grain protein yield effect.
- Intervention effect Elevated CO2 reduced grain protein yield even without grain yield effects.
- Association Ozone affected grain mass more strongly than grain number.
- Association CO2 affected grain number more strongly than grain mass.
- Intervention effect Ozone strongly reduced harvest index.
- Intervention effect CO2 did not affect harvest index.
- Mechanism The authors interpret CO2 as directly impairing grain protein accumulation independently of yield.