Intervention effectmodel-written summary

Heavy metal applications decreased corn leaf enzyme activities relative to control.

A claim from Determination of Changes in Nutritional Elements and Antioxidant Amounts in the Plant by Application of Heavy Metals (Cu, Pb, Cd) to Corn Plant (Zea Mays L.) · 2022

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Heavy metal applications decreased corn leaf enzyme activities relative to control.

Organ / stage
leavese0
Treatment
Heavy Metals (Cu, Pb, Cd)t0
Outcome
enzyme activitiese0
Direction
decreasede0
Comparator
controle0

Not reportedMaterialGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier

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

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Their applications decreased enzyme activities in leaves compared to control”

✓ located verbatim in the source · abstract, characters 847–923
t0

“Heavy Metals (Cu, Pb, Cd) to Corn Plant”

✓ located verbatim in the source · title, characters 104–143

Title

Determination of Changes in Nutritional Elements and Antioxidant Amounts in the Plant by Application of Heavy Metals (Cu, Pb, Cd) to Corn Plant (Zea Mays L.)

Sezer Sahin; Dursun Kısa; Seda Bice Ataklı Romanian Agricultural Research 2022. doi:10.59665/rar3906

Other claims from this paper (8)

Record rev-5d5d405f7fbb5da7365ed00d2a4c159bf1d03edd5a223a5aead2120410f73e96 · schema claims-v0.9 · position 7 in the model’s answer

copper atom · soil: biology · Zea mays (maize)Positive and negative results

4 papers: 1 positive, 3 negative or no effect

2 papers in the same direction as this claim · 1 in the opposite direction

  1. positive
  2. negative
    Combined copper and molybdenum excess intensified depression of acid phosphatase activity.

    Copper-molybdenum interaction in maize · 1989 · compared with single toxic effect of either copper or molybdenum

    Same direction

  3. negative
See all 4 papers →

cadmium atom · soil: biology · Zea mays (maize)Positive and negative results

6 papers: 1 positive, 5 negative or no effect

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

  1. positive
  2. negative
  3. negative
  4. negative
  5. negative
See all 6 papers →

lead atom · soil: biology · Zea mays (maize)Results agree

2 papers: 0 positive, 2 negative or no effect

1 paper in the same direction as this claim

  1. negative
See all 2 papers →

3 of 4 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.

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.