Claim · model-written summary
As irradiance decreased, field-grown winter wheat net photosynthesis decreased proportionally.
- Taxon
- winter wheat
Triticum aestivume0 - Outcome
- net photosynthesise0
- Direction
- decreasee0
- Setting
- irradiance decreasede0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Measurements on leaves of winter wheat showed that there was true saturation of net photosynthesis at high irradiances but as irradiance decreased there was a proportional decrease in net photosynthesis.”
Title
A Mobile Apparatus for Measuring Leaf Photosynthesis in the Field
B. MARSHALL; P. V. BISCOE Journal of Experimental Botany 1977. doi:10.1093/jxb/28.4.1008
Other claims from this paper (4)
- Method / resource The apparatus measures gas exchange of individual cereal leaves in the field.
- Observation Field-grown winter wheat showed saturation of net photosynthesis at high irradiance.
- Method / resource Controlled-environment wheat showed a photosynthesis-light curve better fitted by a rectangular hyperbola.
- Recommendation The authors warn that laboratory photosynthesis-light responses may not extrapolate to the field.