Intervention effectmodel-written summary

Increasing Fe lowered leaf Zn content, leaf area and dry mass.

A claim from Effects of Fe and Zn on growth, biofortification and quality of lettuce grown in hydroponics · 2024

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Increasing Fe lowered leaf Zn content, leaf area and dry mass.

Taxon
lettuceLactuca sativae0
Treatment
increase in Fe concentratione0
Outcome
leaf Zn content, leaf area and leaf dry masse0
Direction
negatively affectede0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e0

“increase in Fe concentration positively influenced the contents of photosynthetic pigments, ascorbic acid and Fe; however, it negatively affected the leaf Zn content, leaf area and leaf dry mass of lettuce”

✓ located verbatim in the source · abstract, characters 894–1099

Title

Effects of Fe and Zn on growth, biofortification and quality of lettuce grown in hydroponics

Vitor B. da Silva; Laura M. Ribera; Maria J. Y. Medelo; et al. Revista Caatinga 2024. doi:10.1590/1983-21252024v3712187rc

Other claims from this paper (1)

Record rev-eccf594e18e9025ead565d3fc9c6d86105e168682ef53885b3079b9e94b0704f · schema claims-v0.9 · position 2 in the model’s answer

iron atom · growth · Lactuca sativa (garden lettuce)Positive and negative results

6 papers: 4 positive, 2 negative or no effect

1 paper in the same direction as this claim · 4 in the opposite direction

  1. negative
    Fe-HBED reduced aboveground biomass by 18% averaged over Fe1 and Fe2.

    Iron Biofortification of Greenhouse Soilless Lettuce: An Effective Agronomic Tool to Improve the Dietary Mineral Intake · 2022

    Same directionCited by this paper

  2. positive
    SNP and Fe(III)CN decreased thermoinhibition of lettuce seed germination in light.

    Sodium nitroprusside, ferricyanide, nitrite and nitrate decrease the thermo-dormancy of lettuce seed germination in a nitric oxide-dependent manner in light · 2011

    Opposite direction

  3. positive
    Lettuce growth was depressed by Fe deficiency in the alkaline sand.

    Effects of Fe compounds on nutrient uptake by plants grown in sand media with different pH · 2004

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

  4. positive
    Iron deficiency significantly reduced fresh weight, total leaf area and leaf number.

    RESPONSES OF TWO LETTUCE CULTIVARS TO IRON DEFICIENCY · 2012

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

  5. positive
    Sulfate forms of Zn and Fe caused less growth and dry matter toxicity than EDTA forms.

    The Effect of Zinc and Iron Applications from Different Sources to Growth, Dry Matter, and Its Uptake by Lettuce (Lactuca sativa) · 2023 · compared with Fe and Zn in the form of ethylenediaminetetraacetic acid (EDTA)

    Opposite direction

See all 6 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.