Intervention effectmodel-written summary

Foliar treatments improved tomato growth indicators over control.

A claim from Effects of Gibberellic acid, micronutrient fertilizer and Calcium nitrate foliar fertilizer on growth and yield of tomato Solanum lycopersicum L. cultivated in Vietnam · 2019

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Foliar treatments improved tomato growth indicators over control.

Treatment
application of GA3, micronutrient fertilizer and Ca(NO3)2 foliar fertilizere0
Outcome
plant height, leaf area index, number of flowers per plante0
Direction
grow bettere0
Comparator
controle0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier

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

“In treatments with the application of GA3, micronutrient fertilizer and Ca(NO3)2 foliar fertilizer, plants were observed to grow better than the control (via some indicators such as plant height, leaf area index, number of flowers per plant, effective flower rate, number of fruits per plant, average fruit weight per plant).”

✓ located verbatim in the source · abstract, characters 411–736
t0

“tomato”

✓ located verbatim in the source · title, characters 115–121

Title

Effects of Gibberellic acid, micronutrient fertilizer and Calcium nitrate foliar fertilizer on growth and yield of tomato Solanum lycopersicum L. cultivated in Vietnam

Van Trong Le; Bao Thinh Bui RUDN Journal of Agronomy and Animal Industries 2019. doi:10.22363/2312-797x-2019-14-4-306-318

Other claims from this paper (5)

Record rev-dae285aaed359a4d7436531b989c4030277378f2759275cfe52f7be3112459ad · schema claims-v0.9 · position 1 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 →

calcium atom · yield · Solanum lycopersicum (tomato)Results differ

79 papers: 67 positive, 12 negative or no effect

66 papers in the same direction as this claim · 11 in the opposite direction · 1 reporting no difference from an alternative

  1. negative
    Increasing nutrient solution salinity progressively reduced tomato fruit yield (fresh weight) compared with 3 mS cm-1 in rockwool.

    Effects of increasing the salinity of the nutrient solution with major nutrients or sodium chloride on the yield, quality and composition of tomatoes grown in rockwool · 1991 · compared with 3 mS cm-1

    Opposite direction

  2. no effect
    Calcium and boron applications did not change total fruit yield.

    Blossom‐end rot and fruit cracking of tomato grown in net‐covered greenhouses in Central Thailand can partly be corrected by calcium and boron sprays · 2009

    Opposite direction

  3. negative
    Seeds from tomato plants given 100 mg Ca L‐1 were small, malformed and black.

    Occurrence of blossom‐end rot in tomato as a function of calcium dose in the nutrient solution and air relative humidity · 1998

    Opposite direction

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

  5. no effect
    K source, K rate and Ca rate did not influence early or total fruit yields at either location.

    POTASSIUM SOURCE AND RATE AND CALCIUM RATE EFFECTS ON TOMATO YIELD AND QUALITY. · 1990

    Opposite direction

  6. negative
    Calcium-treated tomato fruits had lower fresh weight at harvest.

    Preharvest calcium chloride application improves postharvest keeping quality of tomato (Lycopersicon esculentum Mill.) · 2015

    Opposite direction

  7. no effect
    Foliar Ca sprays did not affect tomato yield significantly in the spring season.

    EFFECTS OF SALINITY ON TOMATO GROWING IN SUBSTRATE CULTURE · 2003 · compared with half day 2 and half day 6 dS.m-1

    Opposite direction

  8. no effect
    Average fruit weight did not differ significantly between low and medium calcium treatments.

    Effects of Calcium on Yield and Incidence of Blossom-end Rot of Three Tomato Cultivars · 1996 · compared with low

    Opposite direction

70 papers more in this group

See all 79 papers →

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

28 papers: 26 positive, 2 negative or no effect

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

  1. negative
    Higher concentrations of chelated zinc reduced tomato growth and yield.

    Evaluation of foliar spray of zinc and boron on growth, flowering and yield of tomato (Solanum lycopersicum cv. Srijana) under polytunnel in Nepal · 2024

    Opposite direction

  2. negative
    Foliar nutrition produced smaller tomato fruit.

    Correlation of blossom end rot incidence with biomass production and fruit quality parameters in tomato plants treated with foliar nutrients · 2026

    Opposite direction

  3. positive
    Combined micronutrients produced the maximum fruit yield in both varieties, followed by boron and zinc.

    Effect of foliar application of micronutrients on growth parameters in tomato (Lycopersicon esculentum Mill.). · 2013 · compared with application of boron and zinc

    Same direction

  4. positive
    The mixture of all micronutrients gave the highest number of fruits per plant (46.4), followed by Multiplex.

    Effect of Foliar Application of Micronutrients on Growth, Yield and Economics of Tomato (Lycopersicon esculentum Mill.) · 2017 · compared with commercial formulation (Multiplex)

    Same direction

  5. positive
    Micronutrient application increased tomato growth and yield characters.

    Improving growth and productivity of tomato by some biostimulants and micronutrients with or without mulching · 2018

    Same direction

  6. positive
    Mixed nutrients increased fruits per plant to 42.22.

    Response of tomato (Solanum lycopersicum) to foliar application of micronutrients under low cost protected structure in acidic soil of Meghalaya · 2018 · compared with over the treatments having either Ca, B, Zn, Mo, Cu alone or multiplex without calcium as well as control

    Same direction

  7. positive
    Spraying micronutrients solution stimulated shoot height, number of branches and leaves per plant, leaf area, leaf fresh weight relative to control plants in both seasons.

    Physiological and Biochemical Responses of Tomato Plant to Amino Acids and Micronutrients Foliar Application · 2021 · compared with control plants

    Same direction

  8. positive
    The mixture produced maximum seed yield in both varieties.

    Effect of micronutrients foliar application on seed yield in tomato (Lycopersicon esculentum mill) · 2013 · compared with boron treatment

    Same direction

19 papers more in this group

See all 28 papers →

3 of 5 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.