Intervention effectmodel-written summary

The greatest thousand-grain weight followed 80 kg Zn plus foliar Fe.

A claim from Response of Wheat Plants to Zinc, Iron, and Manganese Applications and Uptake and Concentration of Zinc, Iron, and Manganese in Wheat Grains · 2009

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The greatest thousand-grain weight followed 80 kg Zn plus foliar Fe.

Taxon
Wheat PlantsTriticum aestivumt0
Treatment
80 kg Zn and foliar Fee0
Outcome
weight of 1000 grainse0
Direction
higheste0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier

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

t0

“Wheat Plants”

✓ located verbatim in the source · title, characters 12–24
e0

“The highest weight of 1000 grains resulted from application of 80 kg Zn and foliar Fe.”

✓ located verbatim in the source · abstract, characters 878–964

Title

Response of Wheat Plants to Zinc, Iron, and Manganese Applications and Uptake and Concentration of Zinc, Iron, and Manganese in Wheat Grains

Mohammad R. Pahlavan‐Rad; Mohammad Pessarakli Communications in Soil Science and Plant Analysis 2009. doi:10.1080/00103620902761262

Other claims from this paper (10)

Record rev-8b738f626fd7ea36cc78895b3f1e69c6326b95c963871638a949698a1616c6c8 · schema claims-v0.9 · position 4 in the model’s answer

iron atom · yield · Triticum aestivum (wheat)Results differ

99 papers: 92 positive, 7 negative or no effect

91 papers in the same direction as this claim · 7 in the opposite direction

  1. positive
    Soil or foliar application of FeSO4 and ZnSO4, alone or combined, increased plant height, tiller number and spike length of wheat.

    Biofortification with Zinc and Iron Improves the Grain Quality and Yield of Wheat Crop · 2020

    Same directionCites this paper

  2. positive
    High Fe treatments increased wheat yield.

    Winter Wheat Grain Quality, Zinc and Iron Concentration Affected by a Combined Foliar Spray of Zinc and Iron Fertilizers · 2019

    Same directionCites this paper

  3. positive
    Iron and zinc significantly increased ear heads per tiller, ear head length and grains per ear with concentration.

    Iron and zinc fertilization with reference to the grain quality oftriticum aestivumL. · 1988

    Same directionCited by this paper

  4. positive
    Soil application of Fe-OCs increased wheat yield and yield components.

    Fortification of bread wheat with iron through soil and foliar application of iron-organic-complexes · 2020

    Same directionCites this paper

  5. positive
    Iron + zinc foliar application gave the highest wheat seed yield, 5543 kg ha−1, compared with 4638 kg ha−1 for the control.

    Cycocel, iron and zinc effects on yield and physiological characteristics of wheat under drought stress conditions · 2021 · compared with control treatment (pure water)

    Same directionCites this paper

  6. positive
    Fe-EDTA applications increased wheat growth and yield traits over control.

    Enhancing iron concentration in bread wheat through Fe-EDTA fortification · 2023 · compared with control treatment

    Same directionCites this paper

  7. positive
    Fe and Zn fertilization increased biomass and nutrient concentrations.

    Impact of Fe-EDTA, EDTA, and Zn Applications on Fe and Zn Levels and Biomass Production in Bread Wheat · 2025

    Same directionCites this paper

  8. no effect
    soil application of Fe-EDDHA did not significantly affect wheat dry matter yield.

    Interaction of Iron with Copper, Zinc, and Manganese in Wheat as Affected by Iron and Manganese in a Calcareous Soil · 2008

    Opposite direction

90 papers more in this group

See all 99 papers →

zinc atom · yield · Triticum aestivum (wheat)Results differ

511 papers: 456 positive, 55 negative or no effect

455 papers in the same direction as this claim · 49 in the opposite direction · 6 reporting no difference from an alternative

  1. positive
    Zinc application by any tested method significantly increased grain yield in all wheat cultivars.

    Effect of different zinc application methods on grain yield and zinc concentration in wheat cultivars grown on zinc‐deficient calcareous soils · 1997

    Same directionCited by this paper

  2. positive
    Iron and zinc significantly increased ear heads per tiller, ear head length and grains per ear with concentration.

    Iron and zinc fertilization with reference to the grain quality oftriticum aestivumL. · 1988

    Same directionCited by this paper

  3. positive
    Iron + zinc foliar application gave the highest wheat seed yield, 5543 kg ha−1, compared with 4638 kg ha−1 for the control.

    Cycocel, iron and zinc effects on yield and physiological characteristics of wheat under drought stress conditions · 2021 · compared with control treatment (pure water)

    Same directionCites this paper

  4. positive
    Fe and Zn fertilization increased biomass and nutrient concentrations.

    Impact of Fe-EDTA, EDTA, and Zn Applications on Fe and Zn Levels and Biomass Production in Bread Wheat · 2025

    Same directionCites this paper

  5. no effect
    Zinc application yielded hardly any benefit.

    Landscape positions dictating crop fertilizer responses in wheat-based farming systems of East African Highlands · 2020

    Opposite direction

  6. negative
    Zinc inhibited non mycorrhizal wheat root dry yield.

    Arbuscular mycorrhizal strategy for zinc mycoremediation and diminished translocation to shoots and grains in wheat · 2017

    Opposite direction

  7. no effect
    Foliar Zn had no significant effect on wheat grain yield.

    Foliar zinc fertilization improves the zinc nutritional value of wheat (Triticum aestivum L.) grain · 2011

    Opposite direction

  8. no effect
    Zinc supply had little effect on wheat biomass.

    Plant growth and cation composition of two cultivars of spring wheat (Triticum aestivum L.) differing in P uptake efficiency · 2001

    Opposite direction

502 papers more in this group

See all 511 papers →

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

877 papers: 795 positive, 82 negative or no effect

794 papers in the same direction as this claim · 75 in the opposite direction · 7 reporting no difference from an alternative

  1. positive
    Foliar nano manganese changed grain nutrient content by 12% relative to soil exposure.

    Effects of Manganese Nanoparticle Exposure on Nutrient Acquisition in Wheat (Triticum aestivum L.) · 2018 · compared with soil

    Same directionCites this paper

  2. positive
    Foliar zinc increased bread wheat grain yield from 43.6 to 56.4 t ha−1.

    Zinc biofortification of bread wheat, triticale, and durum wheat cultivars by foliar zinc fertilization · 2019 · compared with 43.6

    Same directionCites this paper

  3. positive
    Soil application of Fe-OCs increased wheat yield and yield components.

    Fortification of bread wheat with iron through soil and foliar application of iron-organic-complexes · 2020

    Same directionCites this paper

  4. positive
    Iron + zinc foliar application gave the highest wheat seed yield, 5543 kg ha−1, compared with 4638 kg ha−1 for the control.

    Cycocel, iron and zinc effects on yield and physiological characteristics of wheat under drought stress conditions · 2021 · compared with control treatment (pure water)

    Same directionCites this paper

  5. positive
    Zinc foliar application at tillering raised wheat grain yield by 9.7% over no foliar application.

    Effect of seed Priming and Foliar Application of Zinc on Yield and Yield Components of two wheat Cultivars · 2015 · compared with control (no foliar application)

    Same directionCites this paper

  6. no effect
    Foliar N applications showed no consistent increase or decrease in grain yield, straw yield or straw N.

    Influence of Late‐Season Foliar Nitrogen Applications on Yield and Grain Nitrogen in Winter Wheat · 2002

    Opposite direction

  7. negative
    Boot-stage foliar N significantly reduced grain yield of hard red spring wheat by 5%.

    Foliar Nitrogen Application Timing Influence on Grain Yield and Protein Concentration of Hard Red Winter and Spring Wheat · 2003

    Opposite direction

  8. no effect
    soil application of Fe-EDDHA did not significantly affect wheat dry matter yield.

    Interaction of Iron with Copper, Zinc, and Manganese in Wheat as Affected by Iron and Manganese in a Calcareous Soil · 2008

    Opposite direction

868 papers more in this group

See all 877 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.