Intervention effectmodel-written summary

Foliar spray of 2% urea with 20 ppm gibberellic acid gave the next highest tomato fruit yield, 32.13 t ha-1.

A claim from Impact of phyto-chemicals with nutrients on growth analytical traits and yield of tomato · 2018

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Foliar spray of 2% urea with 20 ppm gibberellic acid gave the next highest tomato fruit yield, 32.13 t ha-1.

Treatment
2% urea with 20 ppm gibberellic acide1
Outcome
fruit yielde0
Direction
lowerinferrede1
Value
32.13 t ha-1e1

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingQualifier

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

“highest fruit yield”

✓ located verbatim in the source · abstract, characters 800–819
e1

“followed by 2% urea with 20 ppm gibberellic acid (32.13 t ha-1)”

✓ located verbatim in the source · abstract, characters 900–963
t0

“tomato”

✓ located verbatim in the source · title, characters 82–88

Title

Impact of phyto-chemicals with nutrients on growth analytical traits and yield of tomato

R. Sivakumar; S. Srividhya Journal of Pharmacognosy and Phytochemistry 2018

Other claims from this paper (6)

Record rev-5abaebb034735d13bbd258e62bb790a71dea6d5a3e604131713ef34de4ef1d31 · schema claims-v0.9 · position 7 in the model’s answer

Gibberellic acid · yield · Solanum lycopersicum (tomato)Results differ

56 papers: 51 positive, 5 negative or no effect

50 papers in the same direction as this claim · 5 in the opposite direction

  1. negative
    GA reduced total fruit yield in 1988.

    Drought, Paclobutrazol, Abscisic Acid, and Gibberellic Acid as Alternatives to Daminozide in Tomato Transplant Production · 1992

    Opposite direction

  2. no effect
    GA3 did not increase seeds per fruit relative to controls.

    Gibberellic acid induced multilocular fruits in tomato and the role of locule number and seed number in fruit size · 1978 · compared with controls

    Opposite direction

  3. no effect
    GA3 treatment did not retard growth or cause flower bud abscission in tomato.

    Effects of Gibberellic acid and 2,4-Dichlorophenoxy Acetic Acid Spray on Vegetative Growth, Fruit Anatomy and Seed Setting of Tomato (Lycopersicon esculentum Mill.) · 2013

    Opposite direction

  4. no effect
    GA did not affect fruit size.

    Genotypic and Chemical Influences on Fruit Growth of Tomato · 1990

    Opposite direction

  5. negative
    GA biosynthesis inhibition suppressed Sldad1 fruit set.

    Spatiotemporal localization of jasmonate in the regulation of fruit set in tomato · 2025

    Opposite direction

  6. positive
    GA(3) application reversed the inhibitor effects on tomato fruit growth and set.

    Gibberellin Regulation of Fruit Set and Growth in Tomato · 2007

    Same direction

  7. positive
    GA application to a developing inflorescence or stem tip completed flower bud development and fruit set.

    FLOWER DEVELOPMENT IN NORMAL TOMATO AND A GIBBERELLIN‐DEFICIENT (ga‐2) MUTANT · 1988

    Same direction

  8. positive
    GA improved tomato yield.

    Amendment of hydroponic nutrient solution with humic acid and glutamic acid in tomato (Lycopersicon esculentumMill.) culture · 2013

    Same direction

47 papers more in this group

See all 56 papers →

nitrogen · yield · Solanum lycopersicum (tomato)Positive and negative results

210 papers: 172 positive, 38 negative or no effect

171 papers in the same direction as this claim · 31 in the opposite direction · 7 reporting no difference from an alternative

  1. negative
    Lower nitrogen supply reduced tomato commercial fruit yield by 7.5%.

    Effects of Low Nitrogen Supply on Tomato (Solanum lycopersicum) Fruit Yield and Quality with Special Emphasis on Sugars, Acids, Ascorbate, Carotenoids, and Phenolic Compounds · 2009

    Opposite direction

  2. negative
    Higher ammonium severely curtailed fruit yield.

    Effects of ammonium and inorganic carbon enrichment on growth and yield of a hydroponic tomato crop · 2002

    Opposite direction

  3. negative
    Lower nitrogen supply reduced tomato fruit number.

    Interactive Effects of Elevated CO2 and N Fertilization on Yield and Quality of Tomato Grown Under Reduced Irrigation Regimes · 2018

    Opposite direction

  4. negative
    Foliar ammonium restricted tomato yield.

    Tomato growth responses to foliar application of ammonium sulfate in hydroponic culture · 2016

    Opposite direction

  5. negative
    Six weeks of nitrogen deprivation reduced commercial fruit yield from 9.3 to 7.7 kg m −2.

    Growth and Nitrogen Status of Soilless Tomato Plants Following Nitrate Withdrawal from the Nutrient Solution · 2001 · compared with control plants

    Opposite direction

  6. no effect
    N, K and Ca limitation did not affect Micro-Tom fruit yield.

    Metabolite profile of the tomato dwarf cultivar Micro‐Tom and comparative response to saline and nutritional stresses with regard to a commercial cultivar · 2015

    Opposite direction

  7. negative
    Ammonium nutrition reduced shoot growth, total and mean fruit weight, and fruit number relative to nitrate nutrition.

    Effects of Nitrogen Form and Level on Ion Concentrations, Water Stress, and Blossom-end Rot Incidence in Tomato1 · 1978 · compared with NO 3 –N nutrition

    Opposite direction

  8. no effect
    Weekly N and K injection schedule did not affect yield or other characteristics.

    Yield of Trickle-irrigated Tomatoes as Affected by Time of N and K Application · 1990

    Opposite direction

201 papers more in this group

See all 210 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.