Intervention effectmodel-written summary

Combined treatment decreased blossom end rot incidence.

A claim from Vegetative and Reproductive Growth of Tomato Plants Affected by Calcium and Humic Acid · 2013

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Combined treatment decreased blossom end rot incidence.

Treatment
20 ppm HA+10 mM Cae0
Outcome
incidence of blossom end rote0
Direction
decreasede0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier

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

“The application 20 ppm HA+10 mM Ca significantly increased the leaves-NK content and dry weight; in the other hand it decreased the incidence of blossom end rot.”

✓ located verbatim in the source · abstract, characters 512–673
t0

“Tomato”

✓ located verbatim in the source · title, characters 38–44

Title

Vegetative and Reproductive Growth of Tomato Plants Affected by Calcium and Humic Acid

Mohsen Kazemi 2013

Other claims from this paper (7)

Record rev-7cc4c3ec0cebe83d0606a44bfae93b4560243f58763f40931e6a98cf488b4675 · schema claims-v0.9 · position 5 in the model’s answer

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

50 papers: 35 positive, 15 negative or no effect

34 papers in the same direction as this claim · 14 in the opposite direction · 1 reporting no difference from an alternative

  1. positive
    High Ca (300 mg L -1) reduced the incidence of blossom-end rot in tomato compared with low Ca.

    Effects of calcium and magnesium on growth, fruit yield and quality in a fall greenhouse tomato crop grown on rockwool · 2003 · compared with low Ca concentration (150 mg L -1 )

    Same directionCited by this paper

  2. positive
    Number and weight of blossom-end rot fruit were lower with Ca(NO3)2 and reduced K than with no added Ca and CaSO4.

    Blossom-end Rot Incidence of Tomato as Affected by Irrigation Quantity, Calcium Source, and Reduced Potassium · 2004 · compared with no added Ca and CaSO 4

    Same directionCited by this paper

  3. positive
    The foliar applications decreased blossom end rot incidence in tomato fruit.

    Response of Tomato Plants to Foliar Application of Humic, Fulvic Acid and Chelated Calcium · 2016

    Same directionCites this paper

  4. negative
    Fruits from plants treated with 2.5 mmol L‐1 calcium showed blossom‐end rot.

    Composition and quality of tomato fruit cultivated in nutrient solutions containing different calcium concentrations · 1998

    Opposite direction

  5. negative
    Low calcium, phosphate and air humidity gave higher blossom-end rot in tomato than the higher levels of these factors.

    Interactive effects of air humidity, calcium and phosphate on blossom‐end rot, leaf deformation, production and nutrient contents of tomato · 1996 · compared with higher levels of these factors

    Opposite direction

  6. negative
    Tomato fruit from plants given 100 mg Ca L‐1 with low humidity had blossom‐end rot, although their Ca levels were higher than in high-humidity fruit.

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

    Opposite direction

  7. negative
    Calcium stress during the fruiting stage caused serious blossom-end rot of tomato fruits.

    Effects of shortage of calcium and other cations on 45Ca mobility, growth and nutritional disorders of tomato plants (Lycopersicon esculentum) · 1976

    Opposite direction

  8. negative
    Blossom-end rot incidence increased with a decrease in the Ca/K ratio of the nutrient solution in summer and spring.

    Incidence of Blossom-end Rot in Relation to the Water-soluble Calcium Concentration in Tomato Fruits as Affected by Calcium Nutrition and Cropping Season · 2014

    Opposite direction

41 papers more in this group

See all 50 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.