Intervention effectmodel-written summary

Long-term elevated CO2 did not change chlorophyll, soluble protein or Rubisco per unit leaf area in winter wheat grown under simulated field conditions.

A claim from Interacting effects of CO2 concentration, temperature and nitrogen supply on the photosynthesis and composition of winter wheat leaves · 1994

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Long-term elevated CO2 did not change chlorophyll, soluble protein or Rubisco per unit leaf area in winter wheat grown under simulated field conditions.

Taxon
winter wheatTriticum aestivumt0
Treatment
elevated CO 2 concentratione3
Outcome
amounts of chlorophyll, soluble protein and ribulose‐1,5‐bisphosphate carboxylase/oxygenase (Rubisco) per unit leaf areae3
Direction
did not changee3
Comparator
ambient CO 2 concentratione1
Setting
simulated field conditionse4

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleValueQualifier

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e3

“The amounts of chlorophyll, soluble protein and ribulose‐1,5‐bisphosphate carboxylase/oxygenase (Rubisco) per unit leaf area did not change with long‐term exposure to elevated CO 2 concentration”

✓ located verbatim in the source · abstract, characters 565–759
e1

“Leaves grown at 700 μmol mol −1 CO 2 had slightly greater photosynthetic capacity (10% mean increase over the experiment) than those grown at ambient CO 2 concentration”

✓ located verbatim in the source · abstract, characters 310–478
e4

“grown under simulated field conditions”

✓ located verbatim in the source · abstract, characters 780–818
t0

“winter wheat leaves”

✓ located verbatim in the source · title, characters 115–134

Title

Interacting effects of CO2 concentration, temperature and nitrogen supply on the photosynthesis and composition of winter wheat leaves

E. DELGADO; R. A. C. MITCHELL; M. A. J. PARRY; et al. Plant Cell & Environment 1994. doi:10.1111/j.1365-3040.1994.tb02018.x

Other claims from this paper (7)

Record rev-e7466bd08b5fb0db5dca12ffd291d26cc40788820b4e6243d6068be76a06ae42 · schema claims-v0.9 · position 3 in the model’s answer

co2 · physiology: photosynthesis · Triticum aestivum (wheat)Positive and negative results

97 papers: 69 positive, 28 negative or no effect

28 papers in the same direction as this claim · 68 in the opposite direction

  1. positive
  2. positive
  3. positive
  4. positive
  5. positive
  6. positive
  7. no effect
  8. positive

88 papers more in this group

See all 97 papers →

Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.