Intervention effectmodel-written summary

Urea priming had no positive significant effect on germination percentage.

A claim from Comparison Effect of different Seed priming methods on Sunflower Germination and seedling growth · 2013

Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Urea priming had no positive significant effect on germination percentage.

Taxon
sunflowerHelianthus annuust0
Treatment
ureae0
Outcome
urea and KNO3 priming had no positive and significant effect on germination percentagee0
Direction
no positive and significant effecte0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier

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

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

e0

“urea and KNO3 priming had no positive and significant effect on germination percentage”

✓ located verbatim in the source · abstract, characters 676–762
t0

“Sunflower”

✓ located verbatim in the source · title, characters 55–64

Title

Comparison Effect of different Seed priming methods on Sunflower Germination and seedling growth

Reza Hamidi; Hadi Pirasteh‐Anosheh International Journal of Agronomy and Plant Production 2013

Other claims from this paper (6)

Record rev-815c2b3dfe4424522bfec552cdf023a31ef31ed6cf839c304bf21b916a893a78 · schema claims-v0.9 · position 1 in the model’s answer

nitrogen · growth · Helianthus annuus (common sunflower)Results differ

76 papers: 63 positive, 13 negative or no effect

13 papers in the same direction as this claim · 62 in the opposite direction

  1. positive
    High nitrate increased leaf area and specific leaf mass relative to low nitrate.

    Induction of leaf senescence by low nitrogen nutrition in sunflower (Helianthus annuus) plants · 2009 · compared with 2 mM nitrate

    Opposite direction

  2. positive
    Relieving nitrogen stress in mid vegetative growth restored final leaf number to the unstressed number.

    Leaf and Floret Production in Sunflower (Helianthus annuus L.) as Affected by Nitrogen Supply · 1983 · compared with unstressed number

    Opposite direction

  3. positive
    Nitrogen limitation reduced leaf area index in sunflower.

    Effects of nitrogen supply on canopy development of maize and sunflower · 2012

    Opposite directionAbout lacking this nutrient, so it counts the other way round

  4. positive
    Sunflower plants receiving 6 mM nitrate accumulated more dry matter than urea-grown plants.

    Distribution of Nitrogen during Growth of Sunflower (Helianthus annuus L.) · 1983 · compared with urea-grown plants

    Opposite direction

  5. positive
    Low nitrate or phosphate increased root:shoot ratio and uptake kinetic parameters.

    Nutrient-limited growth rates: quantitative benefits of stress responses and some aspects of regulation · 1995

    Opposite direction

  6. positive
    After bud initiation, a moderate N application rate accelerated shoot and root biomass accumulation at the S0 and S1 levels.

    Shoot and Root Biomass Allocation of Sunflower Varying with Soil Salinity and Nitrogen Applications · 2017

    Opposite direction

  7. positive
    At 120 kg N ha-1, the highest sunflower heights were 120 cm in 2003 and 138 cm in 2004.

    Response of sunflower (Helianthus annuus L.) to nitrogen application in a savanna Alfisol · 2010

    Opposite direction

  8. positive
    Nitrogen application improved leaf area, head size and filled seed percentage up to 60 kg/ha.

    Response of sunflower cultivars to plant density and nitrogen · 1985

    Opposite direction

67 papers more in this group

See all 76 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.