Intervention effectmodel-written summary

Increased seeding rates improved wheat grain yield by 14%.

A claim from Row spacing and seeding rate effects in wheat and barley under a conventional fallow management system · 1996

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Increased seeding rates improved wheat grain yield by 14%.

Treatment
increased seeding ratese0
Outcome
Grain yieldse0
Direction
improvede0
Value
14%e0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingQualifier

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

e0

“Grain yields were improved with increased seeding rates by 14% in wheat and 32% in barley”

✓ located verbatim in the source · abstract, characters 188–277

Title

Row spacing and seeding rate effects in wheat and barley under a conventional fallow management system

G. P. Lafond; D. A. Derksen Canadian Journal of Plant Science 1996. doi:10.4141/cjps96-132

Other claims from this paper (5)

Record rev-ec02fc8a740d4ebfbbc8d71bddc287015fec9712ea1c537d4f72d957e34c01ae · schema claims-v0.9 · position 3 in the model’s answer

density · yield · Triticum aestivum (wheat)Positive and negative results

498 papers: 376 positive, 122 negative or no effect

375 papers in the same direction as this claim · 115 in the opposite direction · 7 reporting no difference from an alternative

  1. negative
    Increasing seeding rate at wide spacing could not achieve the narrow spacing yield gain.

    Hard Red Spring Wheat Response to Row Spacing, Seeding Rate, and Nitrogen · 2008

    Opposite directionCites this paper

  2. no effect
    Grain yield of wheat was not significantly affected by seeding rate.

    The effects of seeding rate on yield, lodging resistance and culm strength in wheat · 2019

    Opposite directionCites this paper

  3. negative
    Grain yield of wheat declined by 5–8% as row spacing increased from 18 to 36 cm

    Influence of row spacing on water use and yield of rain-fed wheat (Triticum aestivum L.) in a no-till system with stubble retention · 2010

    Opposite directionCites this paper

  4. no effect
    Wheat yield did not differ significantly among 15, 17.5 and 20 cm row spacing.

    Influence of Tillage, Cultivar, Seed Rate and Planting Geometry on Wheat Yield · 2017 · compared with 15, 17.5 and 20 cm

    No difference from an alternativeCites this paper

  5. positive
    Grain yield showed a positive quadratic response as seeding rate increased.

    Tillage and Seeding Rate Effects on Wheat Cultivars: I. Grain Production · 2003

    Same directionCites this paper

  6. no effect
    Sowing density did not affect yield in 2000.

    Field evaluation of early vigour for genetic improvement of grain yield in wheat · 2002

    Opposite direction

  7. no effect
    Spacing changes did not significantly affect grain yield.

    Genotype, sowing date and plant spacing influence on high-yielding irrigated wheat in southern New South Wales. II. Growth, yield and nitrogen use · 1990

    Opposite direction

  8. no effect
    Nitrogen level, N timing and seeding rate had no significant effect on spring wheat grain yield across environments.

    Seeding Rate and Nitrogen Management Effects on Spring Wheat Yield and Yield Components · 2007

    Opposite direction

489 papers more in this group

See all 498 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.