Intervention effectmodel-written summary

Vermicompost significantly increased contents of chlorophyll a by 44 versus control.

A claim from Valorization of vermicompost: effects on morpho-physiological parameters of organic tomato plantlets ( Solanum lycopersicum L.) · 2024

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Vermicompost significantly increased contents of chlorophyll a by 44 versus control.

Taxon
tomato plantsSolanum lycopersicume0
Treatment
vermicompost treatmentse0
Outcome
contents of chlorophyll ae0
Direction
increasee0
Value
44e0
Comparator
controle0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingQualifier

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“vermicompost treatments induced a significant increase in shoot length, stem diameter, leaves number, root length, contents of chlorophyll a and carotenoid of tomato plants compared to the control, with an improvement of 54, 38, 38, 70, 44, and 69.5%, respectively”

✓ located verbatim in the source · abstract, characters 1068–1332

Title

Valorization of vermicompost: effects on morpho-physiological parameters of organic tomato plantlets ( Solanum lycopersicum L.)

Samra Akef Bziouech; Najla Dhen; Imen Ben Ammar; et al. Journal of Plant Nutrition 2024. doi:10.1080/01904167.2024.2330540

Other claims from this paper (5)

Record rev-bba17042c24daa67c73fa04507e2755107ebc977601db43e5f56d69c99c32b7e · schema claims-v0.9 · position 5 in the model’s answer

fertilization · physiology: pigments · Solanum lycopersicum (tomato)Positive and negative results

105 papers: 84 positive, 21 negative or no effect

83 papers in the same direction as this claim · 19 in the opposite direction · 2 reporting no difference from an alternative

  1. positive
    Tomato fruits from the high-phosphorus vermicompost substrate with PGPR had higher flavonoids, carotenoids and glutathione than the chemical control.

    Vermicompost-Based Substrates and a PGPR Consortium Improve the Nutraceutical Quality of Greenhouse Tomato (Solanum lycopersicum L.) in a Semi-Hydroponic System · 2026 · compared with chemical control

    Same directionCites this paper

  2. no effect
    Nighttime nutrient solution did not affect SPAD readings.

    Tomato leaf chlorophyll meter readings as affected by variety, nitrogen form, and nighttime nutrient solution strength · 2000

    Opposite direction

  3. no effect
    Nighttime nutrient solution did not affect SPAD readings.

    TOMATO LEAF CHLOROPHYLL METER READINGS AS AFFECTED BY VARIETY, NITROGEN FORM, AND NIGHTTIME NUTRIENT SOLUTION STRENGTH · 2002

    Opposite direction

  4. no effect
    Calcium fertilizer treatments had no effect on other tomato leaf carotenoids.

    Abscisic acid improves tomato fruit quality by increasing soluble sugar concentrations · 2016

    Opposite direction

  5. negative
    Chlorophyll concentration was significantly reduced with limited nutrient supply.

    Upregulation of photosynthesis in mineral nutrition-deficient tomato plants by reduced source-to-sink ratio · 2020

    Opposite direction

  6. no effect
    Commercial fertilizer alone did not affect tomato fruit carotenoid content.

    Cover Crops and Manure Combined with Commercial Fertilizers Differently Affect Yield and Quality of Processing Tomato (Solanum lycopersicum L.) Organically Grown in Puglia · 2021

    Opposite direction

  7. negative
    Tomato plants exposed to at least 1.0 ppm Ni showed chlorosis, necrosis, stunted growth, and sparse brown slimy roots.

    Nickel Content of Some Hawaiian Soils and Plants and the Relation of Nickel to Plant Growth · 1953

    Opposite direction

  8. no effect
    Nitrogen fertilization had no significant effect on carotenoid contents.

    Product quality of greenhouse tomatoes: effect of cultivars, organic N-fertilization and harvest time · 2007

    Opposite direction

96 papers more in this group

See all 105 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.