Claim · model-written summary
Defoliation reduced root starch content and root mass.
VitisNot reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The predominant effect of defoliation (carbon starvation) cascaded onto reducing root starch content, root mass and delaying of veraison and leaf senescence”
t0“Grapevine”
Title
Johann Martínez-Lüscher; Sahap Kaan Kurtural Frontiers in Plant Science 2021. doi:10.3389/fpls.2021.695319
Other claims from this paper (14)
- Intervention effect Greater defoliation increased net carbon assimilation and stomatal conductance in both seasons.
- Intervention effect Fruit removal had no impact on leaf gas exchange in both seasons.
- Association Leaf area to fruit mass was hardly related to berry soluble solids in the first season.
- Association Leaf area to fruit mass strongly correlated with berry soluble solids in the second season, suggesting acclimation.
- Intervention effect Defoliation greatly affected berry size, berries per cluster and total soluble solids in both years.
- Intervention effect Fruit removal affected berry mass and berries per cluster only in the first season.
- Intervention effect Fruit removal affected berry soluble solids only in the second season.
- Intervention effect Defoliation delayed veraison and leaf senescence.
- Intervention effect Harvest was delayed up to 9 weeks with 33% of leaves retained.
- Intervention effect Prior defoliation reduced leaf area, berries per cluster and clusters per vine in the untreated third season.
- Intervention effect Prior defoliation reduced yield in the third season.
- Intervention effect Prior defoliation had no carryover effect on leaf gas exchange.
- Recommendation Balancing source-to-sink ratio is crucial for adequate ripening speed.
- Mechanism Leaf source strength outweighed fruit sink strength in whole-plant regulation.