Claim · model-written summary
GA seemed to affect shoot apex growth within four weeks of culture.
- Taxon
- Apple
Malus domesticat0 - Treatment
- GAe1
- Outcome
- growth of shoot apicese1
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Apple Apical Shoot”
e1“Therefore, it seemed that GA affects the growth of shoot apices within four weeks”
Title
Effects of Growth Regulators and Sugar on the Growth of Apple Apical Shoot
Hirokazu FUKUI; Shigeru IMAKAWA; Tsutomu TAMURA Journal of the Japanese Society for Horticultural Science 1981. doi:10.2503/jjshs.49.549
Other claims from this paper (17)
- Intervention effect NAA showed no effect on the differentiation and elongation of apple leaves in culture.
- Intervention effect High NAA concentration inhibited growth of the apple shoot apex.
- Intervention effect N6-benzyladenine (BA) enhanced the differentiation and elongation of apple leaves in culture.
- Association Length and number of apple leaves increased with BA concentration within 0.01 to 10 μM.
- Intervention effect At 10μM BA the number of differentiating leaves was three fold that of the control.
- Intervention effect At 10μM BA the length of the longest leaf was seven fold that of the control.
- Intervention effect Gibberellic acid had no effect on internode elongation of apple shoots in culture.
- Intervention effect Gibberellic acid enhanced the differentiation and elongation of apple leaves in culture.
- Association The effectiveness of GA on apple leaves became stronger with increasing concentration within 0.01 to 0.1μM.
- Intervention effect Prolonging the culture period beyond four weeks did not further enhance leaf differentiation and elongation.
- Association The effectiveness of BA on leaf differentiation and elongation was observed at higher NAA concentrations.
- Association NAA appeared antagonistic to BA in its effect on apple leaf differentiation and elongation.
- Observation No callus formed on apple shoots cultured on media with NAA, BA or GA alone.
- Observation Callus formed on apple shoots under combined BA and NAA treatment.
- Association Callus induction and growth increased with increasing concentrations of NAA and BA.
- Intervention effect Decreasing sucrose concentration inhibited leaf differentiation and elongation regardless of BA concentration.
- Mechanism Sucrose is considered a limiting factor of leaf differentiation and elongation.