Abstract
The influence of two treatments for reducing grape yield, cluster thinning and berry thinning, on red wine composition and quality were studied in a Vitis vinifera cv Syrah vineyard in AOC Penedès (Spain). Cluster thinning reduced grape yield per vine by around 40% whereas berry thinning only reduced it by around 20%. Cluster thinning grapes had higher soluble solids content than control grapes, and their resultant wines have greater anthocyanin and polysaccharide concentrations than the control wine. Wine obtained from berry thinning grapes had a higher total phenolic index, greater flavonol, proanthocyanidin, and polysaccharide concentrations, and lower titratable acidity than the control wine. Wines obtained from both treatments were sufficiently different from the control wine to be significantly distinguished by a trained panel in a triangular test. Even though both treatments seem to be effective at improving the quality of wine, berry thinning has the advantage because it has less impact on crop yield reduction.
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Claims 10
Claim · model-written summary
Cluster thinning reduced grape yield per vine by around 40%.
- Taxon
- Vitis vinifera
Vitis viniferae0 - Treatment
- Cluster thinninge1
- Outcome
- grape yield per vinee1
- Direction
- reducede1
- Value
- around 40%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Vitis vinifera cv Syrah vineyard in AOC Penedès (Spain)”
e1“Cluster thinning reduced grape yield per vine by around 40% whereas berry thinning only reduced it by around 20%”
Claim · model-written summary
Berry thinning reduced grape yield per vine by around 20%.
- Taxon
- Vitis viniferaVitis viniferae0
- Treatment
- berry thinninge1
- Outcome
- grape yield per vinee1
- Direction
- reducede1
- Value
- around 20%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Vitis vinifera cv Syrah vineyard in AOC Penedès (Spain)”
e1“Cluster thinning reduced grape yield per vine by around 40% whereas berry thinning only reduced it by around 20%”
Claim · model-written summary
Cluster-thinned grapes had higher soluble solids content than control grapes.
- Taxon
- Vitis viniferaVitis viniferae0
- Treatment
- Cluster thinning grapese2
- Outcome
- soluble solids contente2
- Direction
- highere2
- Comparator
- control grapese2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Vitis vinifera cv Syrah vineyard in AOC Penedès (Spain)”
e2“Cluster thinning grapes had higher soluble solids content than control grapes, and their resultant wines have greater anthocyanin and polysaccharide concentrations than the control wine”
Claim · model-written summary
Wines from cluster-thinned grapes had greater anthocyanin and polysaccharide concentrations than control wine.
- Taxon
- Vitis viniferaVitis viniferae0
- Treatment
- Cluster thinning grapese2
- Outcome
- anthocyanin and polysaccharide concentrationse2
- Direction
- greatere2
- Comparator
- control winee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Vitis vinifera cv Syrah vineyard in AOC Penedès (Spain)”
e2“Cluster thinning grapes had higher soluble solids content than control grapes, and their resultant wines have greater anthocyanin and polysaccharide concentrations than the control wine”
Claim · model-written summary
Wine from berry-thinned grapes had a higher total phenolic index than control wine.
- Taxon
- Vitis viniferaVitis viniferae0
- Treatment
- berry thinning grapese3
- Outcome
- total phenolic indexe3
- Direction
- highere3
- Comparator
- control winee3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Vitis vinifera cv Syrah vineyard in AOC Penedès (Spain)”
e3“Wine obtained from berry thinning grapes had a higher total phenolic index, greater flavonol, proanthocyanidin, and polysaccharide concentrations, and lower titratable acidity than the control wine”
Claim · model-written summary
Wine from berry-thinned grapes had greater flavonol, proanthocyanidin and polysaccharide concentrations than control wine.
- Taxon
- Vitis viniferaVitis viniferae0
- Treatment
- berry thinning grapese3
- Outcome
- flavonol, proanthocyanidin, and polysaccharide concentrationse3
- Direction
- greatere3
- Comparator
- control winee3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Vitis vinifera cv Syrah vineyard in AOC Penedès (Spain)”
e3“Wine obtained from berry thinning grapes had a higher total phenolic index, greater flavonol, proanthocyanidin, and polysaccharide concentrations, and lower titratable acidity than the control wine”
Claim · model-written summary
Wine from berry-thinned grapes had lower titratable acidity than control wine.
- Taxon
- Vitis viniferaVitis viniferae0
- Treatment
- berry thinning grapese3
- Outcome
- titratable aciditye3
- Direction
- lowere3
- Comparator
- control winee3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Vitis vinifera cv Syrah vineyard in AOC Penedès (Spain)”
e3“Wine obtained from berry thinning grapes had a higher total phenolic index, greater flavonol, proanthocyanidin, and polysaccharide concentrations, and lower titratable acidity than the control wine”
Claim · model-written summary
Wines from both thinning treatments were distinguished from control wine by a trained panel in a triangular test.
- Taxon
- Vitis viniferaVitis viniferae0
- Treatment
- both treatmentse4
- Outcome
- significantly distinguished by a trained panele4
- Direction
- sufficiently differente4
- Comparator
- control winee4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Vitis vinifera cv Syrah vineyard in AOC Penedès (Spain)”
e4“Wines obtained from both treatments were sufficiently different from the control wine to be significantly distinguished by a trained panel in a triangular test”
Claim · model-written summary
Berry thinning has the advantage over cluster thinning because it reduces crop yield less.
- Taxon
- Vitis viniferaVitis viniferae0
- Outcome
- berry thinning has the advantagee5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Vitis vinifera cv Syrah vineyard in AOC Penedès (Spain)”
e5“berry thinning has the advantage because it has less impact on crop yield reduction”
Claim · model-written summary
Both thinning treatments seem effective at improving wine quality.
- Taxon
- Vitis viniferaVitis viniferae0
- Treatment
- both treatmentse6
- Outcome
- the quality of winee6
- Direction
- improvinge6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Vitis vinifera cv Syrah vineyard in AOC Penedès (Spain)”
e6“Even though both treatments seem to be effective at improving the quality of wine”
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