Claim · model-written summary
IAA slightly reduced main-stem and lateral growth.
- Taxon
- Phaseolus vulgaris L.
Phaseolus vulgarist0 - Treatment
- IAAe0
- Outcome
- growth of main stems and lateralse0
- Direction
- reducede0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“IAA slightly reduced growth of main stems and laterals and slightly increased apical dominance.”
t0“Phaseolus vulgaris L.”
Title
Light and Hormone Interaction in Apical Dominance in Phaseolus vulgaris L.
D. I. JACKSON; R. J. FIELD Annals of Botany 1972. doi:10.1093/oxfordjournals.aob.a084610
Other claims from this paper (9)
- Intervention effect GA3 increased growth of the main stem and laterals.
- Intervention effect GA3 reduced apical dominance, especially with absent or low kinetin.
- Intervention effect High kinetin lowered GA3-induced main-stem growth and, to a lesser extent, lateral growth.
- Intervention effect Kinetin greatly reduced apical dominance, especially without or at low GA3.
- Intervention effect IAA slightly increased apical dominance.
- Observation IAA effects were generally smaller than those of GA3 or kinetin and showed fewer interactions with other factors.
- Intervention effect Light affected main-stem and lateral growth, depending on GA3 and kinetin levels.
- Mechanism The authors interpret growth as regulated by hormone balance, with gibberellin promoting growth and cytokinins and possibly auxins limiting elongation.
- Mechanism The authors suggest local hormone concentrations may explain differential stem responses, tempered by light intensity.