Intervention effectmodel-written summary

Ambient ozone reduced Moapa alfalfa yields by approximately 8 to 13%.

A claim from Effects of ozone and sulfur dioxide on alfalfa yields and hay quality. Final report · 1982

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Ambient ozone reduced Moapa alfalfa yields by approximately 8 to 13%.

Taxon
Alfalfa (Medicago sativa)Medicago sativae0
Material
Moapae1
Treatment
Ambient ozone concentrationse1
Outcome
yieldse1
Direction
reducede1
Value
8 to 13%e1
Setting
University of California San Joaquin Valley Research and Extension Center near Reedleye2

Not reportedGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorQualifier

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

Medicago sativa
Medicago sativa · TaxonDrepanostoma · CC BY 4.0 · iNaturalist ↗

Verbatim

e0

“Alfalfa (Medicago sativa)”

✓ located verbatim in the source · abstract, characters 0–25
e1

“Ambient ozone concentrations reduced Moapa yields approximately 8 to 13% but had no measureable effect on variety WL-512”

✓ located verbatim in the source · abstract, characters 351–471
e2

“University of California San Joaquin Valley Research and Extension Center near Reedley”

✓ located verbatim in the source · abstract, characters 241–327

Title

Effects of ozone and sulfur dioxide on alfalfa yields and hay quality. Final report

R.F. Brewer; R. T. Ashcroft OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) 1982

Other claims from this paper (2)

Record rev-e98b4aa3147571cd9eaa124187984de7205a43e5bfb3ab41ecfc4e188c4febbc · schema claims-v0.9 · position 1 in the model’s answer

ozone · yield · Medicago sativa (alfalfa)Results agree

5 papers: 0 positive, 5 negative or no effect

4 papers in the same direction as this claim

  1. negative
    At nonsaline conditions, 10 pphm ozone reduced yield by 16%.

    Salinity‐Ozone Interactive Effects on Alfalfa Yield and Water Relations · 1975

    Same direction

  2. negative
    Ozone significantly reduced yields in both years.

    Combined Effects of Ozone and Water Stress on Alfalfa Growth and Yield · 1988

    Same direction

  3. negative
    Ambient ozone significantly reduced alfalfa yield compared with charcoal-filtered air.

    Yield Responses of Field‐Grown Crops to Acidic Fog and Ambient Ozone · 1988 · compared with charcoal‐filtered air

    Same direction

  4. negative
    Ozone significantly reduced alfalfa yield in both years.

    Combined effects of ozone and water stress on alfalfa growth and yield (journal version) · 1988

    Same direction

See all 5 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.