Intervention effectmodel-written summary

Foliar ZnO nanoparticles increased grain Zn concentration by 82%.

A claim from Synthesis, characterization and application of ZnO nanoparticles for improved growth and Zn biofortification in maize · 2020

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Foliar ZnO nanoparticles increased grain Zn concentration by 82%.

Taxon
maizeZea mayst0
Treatment
Foliar applied ZnO NPse0
Outcome
grain Zn concentratione0
Direction
increasee0
Value
82%e0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingQualifier

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Foliar applied ZnO NPs showed maximum increase in grain Zn concentration (82%)”

✓ located verbatim in the source · abstract, characters 1064–1142
t0

“in maize”

✓ located verbatim in the source · title, characters 109–117

Title

Synthesis, characterization and application of ZnO nanoparticles for improved growth and Zn biofortification in maize

Wajid Umar; Muhammad Khalid Hameed; Tariq Aziz; et al. Archives of Agronomy and Soil Science 2020. doi:10.1080/03650340.2020.1782893

Other claims from this paper (6)

Record rev-e1655385b26be329921e6a7dcf0c542d386471c01b21798b7384b80640d0f38c · schema claims-v0.9 · position 6 in the model’s answer

zinc oxide · nutrient: content · Zea mays (maize)Positive and negative results

17 papers: 15 positive, 2 negative or no effect

14 papers in the same direction as this claim · 2 in the opposite direction

  1. positive
    ZnO nanoparticle-treated corn had significantly higher zinc content than the controls.

    Deciphering the role of zinc oxide nanoparticles on physiochemical attributes of Zea mays exposed to saline conditions through modulation in antioxidant enzyme defensive system · 2023

    Same directionCites this paper

  2. no effect
    Low rate ZnO nanoparticles gave no or negligible grain Zn increase over water.

    Biofortification of different maize cultivars with zinc, iron and selenium by foliar fertilizer applications · 2023 · compared with deionized water

    Opposite direction

  3. no effect
    Oil-adhered MnO and ZnO on a granular 8-32-16 fertilizer had no significant effect on Mn and Zn uptake by corn.

    Effect of Oil Coating a Fertilizer on Yield and the Uptake of Manganese and Zinc by Corn and Soybeans · 1969

    Opposite direction

  4. positive
    ZnO NP/alginate beads met maize Zn needs.

    Composites of Biopolymers and ZnO NPs for Controlled Release of Zinc in Agricultural Soils and Timed Delivery for Maize · 2020

    Same direction

  5. positive
    ZnO nanoparticles increased leaf Zn concentration by 11% versus normal form.

    Effect of interaction between salinity and nanoparticles (Fe2O3and ZnO) on physiological parameters ofZea maysL. · 2017 · compared with normal forms

    Same direction

  6. positive
    Increasing soil zinc raised maize shoot zinc concentration with ZnO.

    Biofortification of Silage Maize with Zinc, Iron and Selenium as Affected by Nitrogen Fertilization · 2021

    Same direction

  7. positive
    Combined biochar and 100 mg·L−1 ZnO NPs reduced shoot Cd concentration by 74.55%.

    Bamboo Biochar and Zinc Oxide Nanoparticles Improved the Growth of Maize (Zea mays L.) and Decreased Cadmium Uptake in Cd-Contaminated Soil · 2022

    Same direction

  8. positive
    The combination produced the highest zinc and potassium uptake.

    Integrative Effects of Zinc Nanoparticle and PGRs to Mitigate Salt Stress in Maize · 2023 · compared with all other root treatments

    Same direction

8 papers more in this group

See all 17 papers →

nanoparticle · nutrient: content · Zea mays (maize)Positive and negative results

77 papers: 67 positive, 10 negative or no effect

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

  1. positive
    ZnO nanoparticle-treated corn had significantly higher zinc content than the controls.

    Deciphering the role of zinc oxide nanoparticles on physiochemical attributes of Zea mays exposed to saline conditions through modulation in antioxidant enzyme defensive system · 2023

    Same directionCites this paper

  2. no effect
    PNS had no significant effect on seed phosphorus, calcium and sodium concentrations in maize.

    Response of maize (Zea mays L.) to potassium nano-silica application under drought stress · 2020

    Opposite direction

  3. negative
    EGC and CuNPs at 1,000 mg L −1 reduced manganese and zinc absorption and concentrations.

    Essential oil-grafted copper nanoparticles as a potential next-generation fungicide for holistic disease management in maize · 2023

    Opposite direction

  4. no effect
    Nanoparticles did not affect soil pH or nutrients relative to controls.

    Insecticidal efficacy of nanoparticles against Spodoptera frugiperda (J.E. Smith) larvae and their impact in the soil · 2023 · compared with control treatments

    Opposite direction

  5. no effect
    Low rate ZnO nanoparticles gave no or negligible grain Zn increase over water.

    Biofortification of different maize cultivars with zinc, iron and selenium by foliar fertilizer applications · 2023 · compared with deionized water

    Opposite direction

  6. negative
    Arsenic oxide nanoparticles induced arsenic uptake and accumulation in maize.

    Soil enrichment with actinomycete mitigates the toxicity of arsenic oxide nanoparticles on wheat and maize growth and metabolism · 2021

    Opposite direction

  7. negative
    Excessive nZVI particles possibly inhibit water and nutrient uptake in maize.

    Iron Nanostructure Primes Arbuscular Mycorrhizal Fungi Symbiosis Tightly Connecting Maize Leaf Photosynthesis via a Nanofilm Effect · 2024

    Opposite direction

  8. negative
    Malate-driven transport was often more inhibited than succinate or ATP-driven uptake at 5 nanograms per milliliter.

    Helminthosporium maydis T Toxin Decreased Calcium Transport into Mitochondria of Susceptible Corn · 1984 · compared with succinate or ATP-driven Ca(2+) uptake

    Opposite direction

68 papers more in this group

See all 77 papers →

application · nutrient: content · Zea mays (maize)Positive and negative results

161 papers: 151 positive, 10 negative or no effect

150 papers in the same direction as this claim · 9 in the opposite direction · 1 reporting no difference from an alternative

  1. positive
    Drought and foliar zinc with Pseudomonas increased leaf and grain zinc content.

    Enhancing maize yield, water use efficiency, and Zn content under drought stress by applying Zn-solubilizing bacteria · 2025

    Same directionCites this paper

  2. no effect
    Spray timing did not affect plant-part nitrogen content relative to controls.

    Uptake, Distribution, and Remobilization of 15N‐labeled Urea Applied to Maize Canopies1 · 1985 · compared with controls

    Opposite direction

  3. no effect
    Humus did not significantly affect P and Ca uptake.

    Effects of soil applied humic substances to dry weight and mineral nutrients uptake of maize under calcareous soil conditions · 2008

    Opposite direction

  4. no effect
    Low boron use and zinc solution spray did not affect grain boron uptake.

    Application of Different Levels of Zinc and Boron on Concentration and Uptake of Zinc and Boron in the Corn Grain · 2010

    Opposite direction

  5. negative
    Osmotic stress before or during the absorption period reduced Rb absorption to 20% or less of controls.

    INFLUENCE OF MANNITOL ON ABSORPTION AND RETENTION OF RUBIDIUM BY EXCISED CORN ROOTS · 1973 · compared with controls

    Opposite direction

  6. no effect
    Phosphite application number generally did not change phosphorus concentrations in corn grain, leaf and stem.

    Does phosphite, a reduced form of phosphate contribute to phosphorus nutrition in corn (Zea mays L.)? · 2019

    Opposite direction

  7. negative
    Four foliar CaCl 2 applications increased shoot cadmium concentration relative to two.

    Effects of Ca on growth and some physiological characteristics of maize under Cd stress · 2001 · compared with foliar application CaCl 2 two times

    Opposite direction

  8. no effect
    Leaf nutrient content did not differ before and after chelate application in either hybrid.

    Agronomic characteristics and management of diseases in maize with chelate-based products containing calcium, copper, manganese, and zinc · 2020 · compared with before

    Opposite direction

152 papers more in this group

See all 161 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.