Claim · model-written summary
Soluble solids at harvest ranged from 20.5 to 22.0 Brix in 2010.
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorDirectionQualifier
Verbatim
e0“Crop levels of 1 (low), 1.5 (medium), and 2 (high) clusters per shoot established by cluster thinning (CT) were compared to nonthinned (control) Riesling vines over a three-year period”
e1“Soluble solids at harvest ranged from 18.2 Brix in control to 22.3 Brix in low crop in 2008, from 18.9 to 22.1 Brix, respectively, in 2009, and from 20.5 to 22.0 Brix, respectively, in 2010”
Title
Cluster Thinning Reduces the Economic Sustainability of Riesling Production
Trent Preszler; Todd M. Schmit; Justine E. Vanden Heuvel American Journal of Enology and Viticulture 2013. doi:10.5344/ajev.2013.12123
Other claims from this paper (17)
- Observation Riesling yields ranged from 5.2 to 12.4 t/ha in 2008 across crop levels.
- Observation Riesling yields ranged from 4.0 to 9.3 t/ha in 2009 across crop levels.
- Observation Crop load ranged from 2.9 to 8.7 in 2008 across crop levels.
- Observation Crop load ranged from 2.9 to 9.9 in 2009 across crop levels.
- Intervention effect By 2010, cluster thinning did not change yield or crop load relative to nonthinned control vines.
- Intervention effect Cluster thinning did not change cluster weight in 2008 and 2009.
- Intervention effect In 2010, control clusters weighed 39% less than low-crop clusters.
- Intervention effect Cluster thinning had little or no effect on berry size, pH and titratable acidity.
- Intervention effect Cluster thinning had little or no effect on pruning weight, cluster light exposure and bud cold hardiness.
- Observation Soluble solids at harvest ranged from 18.2 Brix in control to 22.3 Brix in low crop in 2008.
- Observation Soluble solids at harvest ranged from 18.9 to 22.1 Brix in 2009.
- Intervention effect In a consumer wine aroma sorting trial in 2008, low crop wine differed in aromatic attributes from the other treatments.
- Intervention effect In a consumer wine aroma sorting trial in 2009, low and medium crop wines differed in aromatic attributes from the other treatments.
- Observation Grower net return per hectare in 2008 ranged from $2,832 in low crop to $16,055 in control.
- Observation Grower net return per hectare in 2009 ranged from −$115 to $8,596.
- Observation Grower net return per hectare in 2010 ranged from $1,938 to $4,242.
- Observation Financial losses from cluster thinning could be recouped only by grape price increases of up to 143%.