Claim · model-written summary
Leaf removal reduced berry sugar accumulation rate in both years.
- Taxon
- Sangiovese (Vitis vinifera L.) grapevines
Vitis viniferat0 - Treatment
- leaf removale0
- Outcome
- rate of berry sugar accumulatione0
- Direction
- reducede0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In both years, leaf removal reduced the rate of berry sugar accumulation”
t0“Sangiovese (Vitis vinifera L.) grapevines”
Title
A. Palliotti; F. Panara; O. Silvestroni; et al. Australian Journal of Grape and Wine Research 2013. doi:10.1111/ajgw.12033
Other claims from this paper (11)
- Observation Mechanical leaf removal removed 35% of Sangiovese vine leaves.
- Observation Mechanical leaf removal created a 50-cm window above the bunch area.
- Intervention effect Leaf removal lowered harvest Brix by 1.2 relative to controls.
- Intervention effect Leaf removal lowered wine alcohol content by 0.6% relative to controls.
- Intervention effect Sugar content in unharvested defoliated vines recovered to control levels two weeks after harvest.
- Intervention effect Grape total phenolic concentration was similar between defoliated and control vines.
- Intervention effect Wine chemical and chromatic characteristics were similar between groups.
- Intervention effect Cane and root soluble sugar, starch and nitrogen replenishment was similar between groups.
- Recommendation Authors recommend removing leaves at 16–17°Brix for an effective delay in berry sugar accumulation.
- Recommendation Authors recommend removing at least 30–35% of vine leaf area.
- Recommendation Mechanical postveraison leaf removal was judged an easy and economically viable technique for delaying berry sugar accumulation and limiting wine alcohol.