Paper · 2002 · American Journal of Enology and Viticulture

Effect of Cluster Thinning on Berry Skin Anthocyanin Composition ofVitis viniferacv. Nebbiolo

Silvia Guidoni; Pierpaolo Allara; Andrea Schubert

5
claims
12
verbatim quotes
104
citations
3
research areas
—
Not open access

Abstract

Cluster thinning (removal of 50% of the cluster one month after bloom) was tested for three consecutive years in a vineyard located in southern Piedmont (Italy). At harvest, concentrations of total anthocyanins and flavonoids were assessed by spectrophotometry and concentrations of individual anthocyanins were determined by high-performance liquid chromatography. Berry weight and berry skin weight slightly increased following thinning. Soluble solids and berry skin anthocyanins and flavonoids were more concentrated in berries from cluster-thinned plants. Cluster thinning increased the concentrations of cyanidin-3-glucoside, peonidin-3-glucoside, and, to a lesser extent, petunidin-3-glucoside. Concentrations of malvidin-3-glucoside and of acylated anthocyanins were not affected by cluster thinning.

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Claims 5

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Cluster thinning made soluble solids and berry skin anthocyanins and flavonoids more concentrated in Nebbiolo berries.

Taxon
Vitis viniferaVitis viniferat0
Material
Nebbiolot0
Treatment
Cluster thinninge0
Outcome
Soluble solids and berry skin anthocyanins and flavonoidse2
Direction
more concentratede2
Setting
southern Piedmont (Italy)e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Vitis vinifera
Vitis vinifera · TaxonDarijanus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Vitis viniferacv. Nebbiolo”

✓ located verbatim in the source · title, characters 67–93 · show in text ↑
e0

“Cluster thinning (removal of 50% of the cluster one month after bloom) was tested for three consecutive years in a vineyard located in southern Piedmont (Italy)”

✓ located verbatim in the source · abstract, characters 0–160 · show in text ↑
e2

“Soluble solids and berry skin anthocyanins and flavonoids were more concentrated in berries from cluster-thinned plants”

✓ located verbatim in the source · abstract, characters 440–559 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Cluster thinning slightly increased berry weight and berry skin weight.

Taxon
Vitis viniferaVitis viniferat0
Treatment
Cluster thinninge0
Outcome
Berry weight and berry skin weighte1
Direction
increasede1
Qualifier
slightlye1

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Vitis vinifera
Vitis vinifera · TaxonDarijanus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Vitis viniferacv. Nebbiolo”

✓ located verbatim in the source · title, characters 67–93 · show in text ↑
e0

“Cluster thinning (removal of 50% of the cluster one month after bloom) was tested for three consecutive years in a vineyard located in southern Piedmont (Italy)”

✓ located verbatim in the source · abstract, characters 0–160 · show in text ↑
e1

“Berry weight and berry skin weight slightly increased following thinning”

✓ located verbatim in the source · abstract, characters 366–438 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Cluster thinning increased cyanidin-3-glucoside and peonidin-3-glucoside concentrations in Nebbiolo berries.

Taxon
Vitis viniferaVitis viniferat0
Treatment
Cluster thinninge3
Outcome
concentrations of cyanidin-3-glucoside, peonidin-3-glucosidee3
Direction
increasede3

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Vitis vinifera
Vitis vinifera · TaxonDarijanus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Vitis viniferacv. Nebbiolo”

✓ located verbatim in the source · title, characters 67–93 · show in text ↑
e3

“Cluster thinning increased the concentrations of cyanidin-3-glucoside, peonidin-3-glucoside, and, to a lesser extent, petunidin-3-glucoside”

✓ located verbatim in the source · abstract, characters 561–700 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Cluster thinning increased petunidin-3-glucoside concentration to a lesser extent than the other two anthocyanins.

Taxon
Vitis viniferaVitis viniferat0
Treatment
Cluster thinninge3
Outcome
petunidin-3-glucosidee3
Direction
increasede3
Qualifier
to a lesser extente3

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Vitis vinifera
Vitis vinifera · TaxonDarijanus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Vitis viniferacv. Nebbiolo”

✓ located verbatim in the source · title, characters 67–93 · show in text ↑
e3

“Cluster thinning increased the concentrations of cyanidin-3-glucoside, peonidin-3-glucoside, and, to a lesser extent, petunidin-3-glucoside”

✓ located verbatim in the source · abstract, characters 561–700 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Cluster thinning did not affect malvidin-3-glucoside or acylated anthocyanin concentrations in Nebbiolo berries.

Taxon
Vitis viniferaVitis viniferat0
Treatment
cluster thinninge4
Outcome
Concentrations of malvidin-3-glucoside and of acylated anthocyaninse4
Direction
not affectede4

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Vitis vinifera
Vitis vinifera · TaxonDarijanus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Vitis viniferacv. Nebbiolo”

✓ located verbatim in the source · title, characters 67–93 · show in text ↑
e4

“Concentrations of malvidin-3-glucoside and of acylated anthocyanins were not affected by cluster thinning”

✓ located verbatim in the source · abstract, characters 702–807 · show in text ↑

cluster · quality: phytochemicals · Vitis vinifera (wine grape)Results differ

15 papers: 10 positive, 5 negative or no effect

4 papers in the same direction as this paper · 10 in the opposite direction

  1. positive
  2. positive
  3. positive

11 papers more in this group

See all 15 papers →

pruning · quality: phytochemicals · Vitis vinifera (wine grape)Results differ

51 papers: 43 positive, 8 negative or no effect

7 papers in the same direction as this paper · 43 in the opposite direction

  1. positive
  2. positive
  3. positive

47 papers more in this group

See all 51 papers →

Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.