Intervention effectmodel-written summary

The 2,4-D culture supplements produced somatic embryos from old Giza 6 bean seed tissue.

A claim from Using Oxygen Bioavailability and Somatic Embryogenesis Techniques for Regeneration of Old Seeds of Common Bean (Phaseolus vulgaris L.) · 2023

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The 2,4-D culture supplements produced somatic embryos from old Giza 6 bean seed tissue.

Taxon
common beanPhaseolus vulgarise0
Material
Giza 6e0
Organ / stage
old seeds tissuese0
Treatment
2,4-D at a concentration of 5 mg/l + supplements (0.1 µM GA3/L + 2 mg kintien/L + 1.0 mM glutamine)e0
Outcome
somatic embryose0
Direction
producee0

Not reportedGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier

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

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“2,4-D at a concentration of 5 mg/l + supplements (0.1 µM GA3/L + 2 mg kintien/L + 1.0 mM glutamine) was able to produce somatic embryos of the old seeds tissues for common bean cv. Giza 6”

✓ located verbatim in the source · abstract, characters 1974–2161

Title

Using Oxygen Bioavailability and Somatic Embryogenesis Techniques for Regeneration of Old Seeds of Common Bean (Phaseolus vulgaris L.)

Hamed H. Hamed; M. Khalil Mohamed Asian Journal of Agricultural and Horticultural Research 2023. doi:10.9734/ajahr/2023/v10i4241

Other claims from this paper (4)

Record rev-b119876dfd1c1acf38fe26730437e261d91a3fdce26c390015d30a94a6dc5226 · schema claims-v0.9 · position 3 in the model’s answer

2,4-D · growth · Phaseolus vulgaris (common bean)Results differ

18 papers: 9 positive, 9 negative or no effect

8 papers in the same direction as this claim · 9 in the opposite direction

  1. negative
    Only 2,4-D changed chloroplast morphology and internal structure after 24 h, and only in light.

    The Effect of 2,4-Dichlorophenoxyacetic Acid and Related Compounds on the Fine Structure of the Primary Leaves ofPhaseolus vulgaris · 1970 · compared with 2-chlorophenoxyacetic acid (2-CPA), 4-chlorophenoxyacetic acid (4-CPA), 2,6-dichlorophenoxyacetic acid (2,6-D)

    Opposite direction

  2. negative
    Fresh and dry plant weight was generally lower when 2,4-D was applied late in the light span.

    Circadian periodic response of Phaseolus vulgaris l. to 2,4-dichlorophenoxyacetic acid. · 1977

    Opposite direction

  3. negative
    Substituting NAA for 2,4-D resulted in poor callus growth and no root formation in bean.

    Root formation and attempts to establish morphogenesis in callus tissues of beans (Phaseolus vulgaris L.) · 1990 · compared with 2,4-D

    Opposite direction

  4. negative
    2,4-D reduced bean seed germination at all concentrations.

    Effect of 2,4-D sub-dose on the initial development of common bean crop · 2021

    Opposite direction

  5. negative
    The 528 g·ai·ha-1 preplant rate reduced bean dry weight by up to 23%.

    Responses of Dry Bean to 2,4-D Ester Applied Preplant and Preemergence · 2019

    Opposite direction

  6. no effect
    Preplant pyraflufen-ethyl, 2,4-D ester or their combination had no adverse effect on dry bean stand, aboveground dry biomass or height (apart from the 2X-rate exceptions).

    Tolerance of Dry Beans to Pyraflufen-Ethyl/2,4-D Ester · 2022

    Opposite direction

  7. no effect
    2,4-D concentrations did not significantly differ in numbers of explants forming callus.

    Influence of growth regulators in the callus formation of Phaseolus vulgaris L cv. CIAP 7247 · 2006 · compared with studied concentrations

    Opposite direction

  8. negative
    Tiafenacil plus 2,4-D ester reduced bean biomass per plant by 18% relative to untreated control.

    Tolerance of Azuki and White Bean to Tiafenacil Tank Mixes · 2025 · compared with non-treated control

    Opposite direction

9 papers more in this group

See all 18 papers →

Gibberellic acid · growth · Phaseolus vulgaris (common bean)Results differ

30 papers: 27 positive, 3 negative or no effect

26 papers in the same direction as this claim · 3 in the opposite direction

  1. negative
    Gibberellic acid inhibited rooting of bean cuttings.

    Inhibition of Rooting of Cuttings by Gibberellic Acid: With one Figure in the Text · 1960

    Opposite direction

  2. no effect
    The tested hormones, sucrose, and light conditions failed to enhance stimulation of embryo growth by incubated cotyledons.

    Culture of Mature Ecotyledonous Embryos of Phaseolus vulgaris and the Nutritional Role of Cotyledons · 1982

    Opposite direction

  3. negative
    Gibberellic acid, c-AMP and c-GMP tended to reduce bean callus growth.

    Root formation and attempts to establish morphogenesis in callus tissues of beans (Phaseolus vulgaris L.) · 1990

    Opposite direction

  4. positive
    Adding GA 3 restored snap bean emergence to the control level.

    Matriconditioning of Vegetable Seeds to Improve Stand Establishment in Early Field Plantings · 1992 · compared with control level

    Same direction

  5. positive
    Gibberellic acid stimulated root initiation at a high auxin-to-kinin ratio.

    The influence of gibberellic acid and abscisic acid on cell and tissue differentiation of bean callus · 1976

    Same direction

  6. positive
    Gibberellic acid promoted petiole elongation.

    MOVEMENT OF GROWTH REGULATORS IN PLANTS · 1967

    Same direction

  7. positive
    At low salinity, gibberellic acid sprayed on primary leaves increased stem length and the fresh and dry weight of top and root in kidney bean.

    INTERACTIVE EFFECTS OF GIBBERELLIC ACID AND SALINITY ON THE GROWTH OF BEANS · 1959

    Same direction

  8. positive
    Gibberellic acid stimulated epicotyl and hypocotyl elongation in dwarf bean plants.

    Influence of Gibberellic Acid on Growth and Endogenous Auxin Level in Epicotyl and Hypocotyl Tissues of Normal and Dwarf Bean Plants · 1976

    Same direction

21 papers more in this group

See all 30 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.