Claim · model-written summary
The peach leaf sink-to-source transition preceded full leaf expansion.
- Taxon
- peach
Prunus persicat0 - Outcome
- sink-source transitione0
- Direction
- before full leaf expansione0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The sink-source transition, defined to be the time when the increase in daily carbohydrate exchange rate exceeded the daily increase in leaf carbohydrate content, occurred before full leaf expansion”
t0“Peach Leaves”
Title
Sink-source Transition in Peach Leaves during Shoot Development
Susanna Marchi; Luca Sebastiani; Riccardo Gucci; et al. Journal of the American Society for Horticultural Science 2005. doi:10.21273/jashs.130.6.928
Other claims from this paper (8)
- Observation Peach shoots and leaves expanded sigmoidally at all measured nodes.
- Observation The 12th leaf node reached half expansion relatively earlier than the sixth and 16th nodes.
- Observation Young peach leaves had low carbon dioxide assimilation rates reflected in chlorophyll concentration.
- Observation Net daily carbon dioxide assimilation was negative in young expanding peach leaves.
- Observation The sixth peach leaf changed from import to export 11-12 days after budbreak at 41% to 45% expansion.
- Observation The 12th peach leaf changed from import to export after about 7-9 days at 38% to 52% expansion.
- Observation The 16th peach leaf changed from import to export after 9-10 days at 32% to 38% expansion.
- Mechanism Leaves below 30% to 50% expansion may themselves be sinks and may not meet sink demand.