Claim · model-written summary
Defoliation at veraison reduced berry flavonols by 8%.
VitisNot reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At veraison, partial defoliation of vines reduced total flavonols by 8%, anthocyanins by 43%, and did not affect total phenolics.”
e1“Carbon supply reduction was used to investigate the relationship between total non-structural carbohydrate (TNSC) concentration in the vegetative tissue and the production of phenolic compounds in the fruit of grapevines. Potted, greenhouse-grown DeChaunac vines were partially defoliated on one of three dates (berry set, veraison, or 7 days pre-harvest) during the growing season.”
Title
Leaf Carbohydrate Concentration Affects Development of Phenolic Compounds in Grape Berries
Justine E. Vanden Heuvel; Jessica L. Robidoux; Catherine C. Neto HortScience 2004. doi:10.21273/hortsci.39.4.761b
Other claims from this paper (12)
- Intervention effect Defoliation at berry set and veraison significantly reduced leaf TNSC.
- Intervention effect Defoliation at berry set reduced berry flavonols by 24%.
- Intervention effect Defoliation at berry set reduced berry anthocyanins by 33%.
- Intervention effect Defoliation at berry set reduced berry total phenolics by 13%.
- Intervention effect Defoliation at veraison reduced berry anthocyanins by 43%.
- Intervention effect Defoliation at veraison did not affect total phenolics.
- Intervention effect Defoliation seven days before harvest did not affect flavonol and total phenolic content.
- Intervention effect Defoliation before harvest increased berry anthocyanins by 39%.
- Intervention effect Before-harvest defoliation did not affect leaf TNSC.
- Association Leaf TNSC was positively correlated with total flavonols at r = 0.53.
- Association Leaf TNSC was positively correlated with anthocyanins at r = 0.73.
- Association Total phenolics were not correlated with TNSC.