Intervention effectmodel-written summary

PGR applications increased grain yield by 91 kg ha −1.

A claim from Maximizing spring wheat productivity in the eastern Canadian Prairies: I. Yield, yield components, and lodging risk · 2022

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

PGR applications increased grain yield by 91 kg ha −1.

Treatment
PGR applicationse0
Outcome
grain yielde0
Direction
increasede0
Value
91 kg ha −1e0

Not reportedTaxonMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingQualifier

Verbatim

e0

“The PGR applications reduced lodging and increased grain yield by 91 kg ha −1 mainly through increases in kernels per spike”

✓ located verbatim in the source · abstract, characters 1181–1304

Title

Maximizing spring wheat productivity in the eastern Canadian Prairies: I. Yield, yield components, and lodging risk

Amy Mangin; Anita Brûlé‐Babel; Don Flaten; et al. Agronomy Journal 2022. doi:10.1002/agj2.21044

Other claims from this paper (9)

Record rev-82759bbdbf3965bc3732ba5ec30b4eb28465f38ada7b9c96403da41b5e7afdc6 · schema claims-v0.9 · position 7 in the model’s answer

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

117 papers: 100 positive, 17 negative or no effect

99 papers in the same direction as this claim · 17 in the opposite direction

  1. no effect
    Apart from stem length, PGRs did not markedly modify plant stand structure or yield formation.

    Timing applications of growth regulators to alter spring cereal development at high latitudes · 2002

    Opposite directionCited by this paper

  2. negative
    The application of PGRs significantly reduced grain yield.

    Effect of Selected Plant Growth Regulators on Yield and Stem Height of Spring Wheat in Ontario · 2017

    Opposite directionCited by this paper

  3. no effect
    Except Caldwell, ethephon did not increase grain yield without lodging.

    Environment and Cultivar Effects on Winter Wheat Response to Ethephon Plant Growth Regulator1 · 1986

    Opposite direction

  4. negative
    Gibberellin significantly reduced forage yield in most cases.

    EFFECTS OF SEED TREATMENTS WITH GIBBERELLIN AND DATES OF SEEDING ON WINTER SURVIVAL AND VEGETATIVE YIELD OF KHARKOV WHEAT · 1959 · compared with water

    Opposite direction

  5. negative
    Growth regulator treatment reduced total dry matter allocation, relative growth rate, plant height, and harvest index.

    Growth of Wheat Plants Submitted to the Application of the Growth Regulator Trinexapac-ethyl and Vigor of the Produced Seeds · 2017

    Opposite direction

  6. no effect
    PGR application did not change wheat grain yield.

    Plant Growth Regulators to Decrease Wheat Height in High Fertility Scenarios · 2019

    Opposite direction

  7. negative
    Higher hormone concentrations sometimes depressed grain yield.

    EFFECT OF PHYTOHORMONE DUSTS ON GROWTH AND YIELD OF WINTER WHEAT VARIETIES · 1938 · compared with Ceresan only

    Opposite direction

  8. no effect
    Growth regulator application failed to increase wheat yield or change its yield components.

    Plant Growth Regulators INCYDE and TD-K Underperform in Cereal Field Trials · 2021

    Opposite direction

108 papers more in this group

See all 117 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.