Intervention effectmodel-written summary

Gibberellin treatment in off-crop seasons increased fruit number and yield weight of mandarin by an average of 40%.

A claim from Gibberellin Treatment Toward Off-crop Season as a Practical Tool to Increase Yield in ‘Orri’ Mandarin · 2025

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Gibberellin treatment in off-crop seasons increased fruit number and yield weight of mandarin by an average of 40%.

Taxon
mandarint0
Material
Orrit0
Treatment
Low-concentration, low-frequency gibberellin treatmentse0
Outcome
fruit number and yield weighte1
Direction
increasee1
Value
40%e1
Qualifier
in off-crop seasons at harveste1

Not reportedGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSetting

Verbatim

t0

“‘Orri’ Mandarin”

✓ located verbatim in the source · title, characters 86–101
e0

“Low-concentration, low-frequency gibberellin treatments were applied to trees during the winter when fruit load was high”

✓ located verbatim in the source · abstract, characters 1267–1387
e1

“An average increase of 40% in fruit number and yield weight was recorded in off-crop seasons at harvest”

✓ located verbatim in the source · abstract, characters 1471–1574

Title

Gibberellin Treatment Toward Off-crop Season as a Practical Tool to Increase Yield in ‘Orri’ Mandarin

Dor Haim; Itzhak Kamara; Michael Morozov; et al. HortScience 2025. doi:10.21273/hortsci18228-24

Other claims from this paper (2)

Record rev-ea396548b71cb86eaafd41a007105bc8242098ffe90ca75f3ee0d8264a73f786 · schema claims-v0.9 · position 1 in the model’s answer

class · yield · Citrus reticulata (tangerine)Results agree

7 papers: 7 positive, 0 negative or no effect

6 papers in the same direction as this claim

  1. positive
    Auxin produced among the heaviest Nova mandarin fruits.

    Effects of girdling, nitrogen, zinc and auxin foliar spray applications on mandarin fruit "Nova" quality characteristics · 2011 · compared with treatments

    Same direction

  2. positive
    Foliar plant growth regulators and mineral nutrients significantly reduced fruit drop.

    Manipulation of source sink relationship for management of fruit drop in kinnow mandarin · 2016

    Same direction

  3. positive
    September growth regulator application significantly prevented fruit drop in December.

    Fruit drop prevention in local tangerine by growth regulators in response to application time · 2013

    Same direction

  4. positive
    Growth regulators improved plantation productivity.

    Impact of exogenous growth regulators on growth and photosynthetic activity in dwarf mandarin plants (Citrus unshiu Marc.) · 2020

    Same direction

  5. positive
    5 ppm active growth regulator reduced fruit drop in mandarin orange by 22-57 per cent in the off-season crop compared with untreated plants.

    Effect of Naphthalene Acetic acid (NAA) on the pre-harvest drop of Mandarin Orange fruits · 1964 · compared with untreated plants

    Same direction

  6. positive
    PGR application reduced preharvest fruit drop.

    Preharvest application of plant growth regulators extends harvest window and improves yield and quality of mandarin orange cv. Khoku Local · 2026

    Same direction

See all 7 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.