Intervention effectmodel-written summary

Elevated CO2 increased average soybean seed yield by 28%.

A claim from Intraspecific variation in seed yield of soybean ( Glycine max ) in response to increased atmospheric carbon dioxide · 1998

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Elevated CO2 increased average soybean seed yield by 28%.

Taxon
soybeanGlycine maxt0
Treatment
increased atmospheric carbon dioxidet0
Outcome
average seed yielde0
Direction
increasede0
Value
28%e0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingQualifier

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“average seed yield increased by only 28%.”

✓ located verbatim in the source · abstract, characters 464–505
t0

“Intraspecific variation in seed yield of soybean ( Glycine max ) in response to increased atmospheric carbon dioxide”

✓ located verbatim in the source · title, characters 0–116

Title

Intraspecific variation in seed yield of soybean ( Glycine max ) in response to increased atmospheric carbon dioxide

Lewis H. Ziska; James A. Bunce; Frances Caulfield Australian Journal of Plant Physiology 1998. doi:10.1071/pp98058

Other claims from this paper (8)

Record rev-e49928ef8998f306c89406160f3a81c43fcdd0eca1a15fc9ae85d465d824bedf · schema claims-v0.9 · position 4 in the model’s answer

co2 · yield · Glycine max (soybean)Positive and negative results

96 papers: 86 positive, 10 negative or no effect

85 papers in the same direction as this claim · 10 in the opposite direction

  1. positive
    Seed yield of soybean increased by 24% at elevated CO2, still lower than the dry weight increase.

    A meta‐analysis of elevated [CO2] effects on soybean (Glycine max) physiology, growth and yield · 2002

    Same directionCites this paper

  2. positive
    CO2 enrichment increased seed yield, mainly through seed number.

    Response of Soybean to Air Temperature and Carbon Dioxide Concentration · 1989

    Same directionCited by this paper

  3. positive
    Elevated CO2 (550 ppm) increased soybean aboveground net primary production by 17-18%, consistently across three seasons and two cultivars.

    Smaller than predicted increase in aboveground net primary production and yield of field‐grown soybean under fully open‐air [CO2] elevation · 2005

    Same directionCites this paper

  4. positive
    Elevated CO2 stimulated seed yield by 9%.

    Is there potential to adapt soybean (Glycine max Merr.) to future [CO2]? An analysis of the yield response of 18 genotypes in free‐air CO2 enrichment · 2014

    Same directionCites this paper

  5. positive
    In weed-free soybean, elevated CO2 increased seed yield by 24%.

    The impact of elevated CO2 on yield loss from a C3 and C4 weed in field‐grown soybean · 2000 · compared with ambient CO 2 condition

    Same directionCites this paper

  6. positive
    All soybean cultivars significantly increased seed yield under elevated carbon dioxide by about 40%.

    Rising Atmospheric Carbon Dioxide and Seed Yield of Soybean Genotypes · 2001

    Same directionCites this paper

  7. positive
    Loda seed yield increased 26% under elevated carbon dioxide.

    Leaf and canopy scale drivers of genotypic variation in soybean response to elevated carbon dioxide concentration · 2017

    Same directionCites this paper

  8. no effect
    The effect of elevated CO2 on soybean harvest index in 2011 was not statistically significant.

    Global Warming Can Negate the Expected CO2 Stimulation in Photosynthesis and Productivity for Soybean Grown in the Midwestern United States     · 2013

    Opposite direction

87 papers more in this group

See all 96 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.