Paper · 2006 · American Journal of Enology and Viticulture

Gibberellic Acid and Basal Leaf Removal: Implications for Fruit Maturity, Vestigial Seed Development, and Sensory Attributes of Sovereign Coronation Table Grapes

Andrew G. Reynolds; Jason N. Roller; Andrea Forgione; et al.

19
claims
40
verbatim quotes
23
citations
3
research areas
—
Not open access

Abstract

Bloom (20 mg/L) and various postbloom (40 to 100 mg/L) applications of gibberellic acid (GA) ± basal leaf removal (BLR) were imposed on Sovereign Coronation vines over a three-year period. GA increased yield in one of three years and berry weight in all three years, while vestigial seed development decreased in two of three years as a linear function of the concentration of GA applied. Brix was reduced linearly with increasing GA in two of three years, pH was generally unaffected, but titratable acidity decreased with increasing GA. Color intensity and anthocyanins increased relative to GA in 2002 only. Methyl anthranilate increased relative to GA in one season while total volatile esters also increased with increasing GA. Treatments involving 40 mg/L GA led to higher fruity and labrusca flavor, sweetness, persistence of flavor, and overall impression, as well as lower acidity and bitterness. Basal leaf removal delayed berry maturity slightly but increased light penetration into the canopy. Berries from non-GA-sprayed control treatments ± BLR were separated into several maturity categories (based on berry Brix) by sucrose buoyant density gradients and were thereafter subjected to sensory evaluation. Increased berry maturity was associated with decreased berry weight and titratable acidity, and increased color intensity, anthocyanins, phenols, methyl anthranilate, and total volatile esters. Principal component analysis coupled with discriminant analysis suggested that soluble solids ≥17 Brix was associated with sweetness, fruity, labrusca, and overall impression.

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Claims 19

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

GA increased yield in one of three years.

Taxon
Table Grapest1
Material
Sovereign Coronationt1
Treatment
gibberellic acid (GA)e0
Outcome
yielde1
Direction
increasede1
Qualifier
in one of three yearse1

Not reportedComparator

Verbatim

t1

“Sovereign Coronation Table Grapes”

✓ located verbatim in the source · title, characters 128–161 · show in text ↑
e0

“applications of gibberellic acid (GA) ± basal leaf removal (BLR) were imposed on Sovereign Coronation vines over a three-year period”

✓ located verbatim in the source · abstract, characters 55–187 · show in text ↑
e1

“GA increased yield in one of three years”

✓ located verbatim in the source · abstract, characters 189–229 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

GA increased berry weight in all three years.

Taxon
Table Grapest1
Material
Sovereign Coronationt1
Treatment
GAe1
Outcome
berry weighte1
Direction
increasede1
Qualifier
in all three yearse1

Not reportedComparator

Verbatim

t1

“Sovereign Coronation Table Grapes”

✓ located verbatim in the source · title, characters 128–161 · show in text ↑
e0

“applications of gibberellic acid (GA) ± basal leaf removal (BLR) were imposed on Sovereign Coronation vines over a three-year period”

✓ located verbatim in the source · abstract, characters 55–187 · show in text ↑
e1

“GA increased yield in one of three years and berry weight in all three years”

✓ located verbatim in the source · abstract, characters 189–265 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Vestigial seed development decreased in two of three years as a linear function of GA concentration.

Taxon
Table Grapest1
Material
Sovereign Coronationt1
Treatment
GAe2
Outcome
vestigial seed developmente2
Direction
decreasede2
Qualifier
as a linear function of the concentration of GA appliede2

Not reportedComparator

Verbatim

t1

“Sovereign Coronation Table Grapes”

✓ located verbatim in the source · title, characters 128–161 · show in text ↑
e2

“vestigial seed development decreased in two of three years as a linear function of the concentration of GA applied”

✓ located verbatim in the source · abstract, characters 273–387 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Brix was reduced linearly with increasing GA in two of three years.

Taxon
Table Grapest1
Material
Sovereign Coronationt1
Treatment
GAe3
Outcome
Brixe3
Direction
reducede3
Qualifier
linearly with increasing GA in two of three yearse3

Not reportedComparator

Verbatim

t1

“Sovereign Coronation Table Grapes”

✓ located verbatim in the source · title, characters 128–161 · show in text ↑
e3

“Brix was reduced linearly with increasing GA in two of three years”

✓ located verbatim in the source · abstract, characters 389–455 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

pH was generally unaffected by GA.

Taxon
Table Grapest1
Material
Sovereign Coronationt1
Treatment
GAe4
Outcome
pHe4
Direction
unaffectede4
Qualifier
generallye4

Not reportedComparator

Verbatim

t1

“Sovereign Coronation Table Grapes”

✓ located verbatim in the source · title, characters 128–161 · show in text ↑
e4

“pH was generally unaffected, but titratable acidity decreased with increasing GA”

✓ located verbatim in the source · abstract, characters 457–537 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Titratable acidity decreased with increasing GA.

Taxon
Table Grapest1
Material
Sovereign Coronationt1
Treatment
GAe4
Outcome
titratable aciditye4
Direction
decreasede4
Qualifier
with increasing GAe4

Not reportedComparator

Verbatim

t1

“Sovereign Coronation Table Grapes”

✓ located verbatim in the source · title, characters 128–161 · show in text ↑
e4

“pH was generally unaffected, but titratable acidity decreased with increasing GA”

✓ located verbatim in the source · abstract, characters 457–537 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Color intensity and anthocyanins increased relative to GA in 2002 only.

Taxon
Table Grapest1
Material
Sovereign Coronationt1
Treatment
GAe5
Outcome
Color intensity and anthocyaninse5
Direction
increasede5
Qualifier
in 2002 onlye5

Not reportedComparator

Verbatim

t1

“Sovereign Coronation Table Grapes”

✓ located verbatim in the source · title, characters 128–161 · show in text ↑
e5

“Color intensity and anthocyanins increased relative to GA in 2002 only”

✓ located verbatim in the source · abstract, characters 539–609 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Methyl anthranilate increased relative to GA in one season.

Taxon
Table Grapest1
Material
Sovereign Coronationt1
Treatment
GAe6
Outcome
Methyl anthranilatee6
Direction
increasede6
Qualifier
in one seasone6

Not reportedComparator

Verbatim

t1

“Sovereign Coronation Table Grapes”

✓ located verbatim in the source · title, characters 128–161 · show in text ↑
e6

“Methyl anthranilate increased relative to GA in one season while total volatile esters also increased with increasing GA”

✓ located verbatim in the source · abstract, characters 611–731 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Total volatile esters increased with increasing GA.

Taxon
Table Grapest1
Material
Sovereign Coronationt1
Treatment
GAe6
Outcome
total volatile esterse6
Direction
increasede6
Qualifier
with increasing GAe6

Not reportedComparator

Verbatim

t1

“Sovereign Coronation Table Grapes”

✓ located verbatim in the source · title, characters 128–161 · show in text ↑
e6

“Methyl anthranilate increased relative to GA in one season while total volatile esters also increased with increasing GA”

✓ located verbatim in the source · abstract, characters 611–731 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Treatments with 40 mg/L GA led to higher fruity and labrusca flavor.

Taxon
Table Grapest1
Material
Sovereign Coronationt1
Treatment
40 mg/L GAe7
Outcome
fruity and labrusca flavore7
Direction
highere7

Not reportedComparator

Verbatim

t1

“Sovereign Coronation Table Grapes”

✓ located verbatim in the source · title, characters 128–161 · show in text ↑
e7

“Treatments involving 40 mg/L GA led to higher fruity and labrusca flavor, sweetness, persistence of flavor, and overall impression, as well as lower acidity and bitterness”

✓ located verbatim in the source · abstract, characters 733–904 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Treatments with 40 mg/L GA led to higher sweetness, persistence of flavor and overall impression.

Taxon
Table Grapest1
Material
Sovereign Coronationt1
Treatment
40 mg/L GAe7
Outcome
sweetness, persistence of flavor, and overall impressione7
Direction
highere7

Not reportedComparator

Verbatim

t1

“Sovereign Coronation Table Grapes”

✓ located verbatim in the source · title, characters 128–161 · show in text ↑
e7

“Treatments involving 40 mg/L GA led to higher fruity and labrusca flavor, sweetness, persistence of flavor, and overall impression, as well as lower acidity and bitterness”

✓ located verbatim in the source · abstract, characters 733–904 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Treatments with 40 mg/L GA led to lower acidity and bitterness.

Taxon
Table Grapest1
Material
Sovereign Coronationt1
Treatment
40 mg/L GAe7
Outcome
acidity and bitternesse7
Direction
lowere7

Not reportedComparator

Verbatim

t1

“Sovereign Coronation Table Grapes”

✓ located verbatim in the source · title, characters 128–161 · show in text ↑
e7

“Treatments involving 40 mg/L GA led to higher fruity and labrusca flavor, sweetness, persistence of flavor, and overall impression, as well as lower acidity and bitterness”

✓ located verbatim in the source · abstract, characters 733–904 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Basal leaf removal delayed berry maturity slightly.

Taxon
Table Grapest1
Material
Sovereign Coronationt1
Treatment
Basal leaf removale7
Outcome
berry maturitye7
Direction
delayede7
Qualifier
slightlye7

Not reportedComparator

Verbatim

t1

“Sovereign Coronation Table Grapes”

✓ located verbatim in the source · title, characters 128–161 · show in text ↑
e7

“Basal leaf removal delayed berry maturity slightly but increased light penetration into the canopy”

✓ located verbatim in the source · abstract, characters 906–1004 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Basal leaf removal increased light penetration into the canopy.

Taxon
Table Grapest1
Material
Sovereign Coronationt1
Treatment
Basal leaf removale7
Outcome
light penetration into the canopye7
Direction
increasede7

Not reportedComparator

Verbatim

t1

“Sovereign Coronation Table Grapes”

✓ located verbatim in the source · title, characters 128–161 · show in text ↑
e7

“Basal leaf removal delayed berry maturity slightly but increased light penetration into the canopy”

✓ located verbatim in the source · abstract, characters 906–1004 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Increased berry maturity was associated with decreased berry weight and titratable acidity.

Taxon
Table Grapest1
Organ / stage
berrye7
Outcome
berry weight and titratable aciditye7
Direction
decreasede7

Verbatim

t1

“Sovereign Coronation Table Grapes”

✓ located verbatim in the source · title, characters 128–161 · show in text ↑
e7

“Increased berry maturity was associated with decreased berry weight and titratable acidity, and increased color intensity, anthocyanins, phenols, methyl anthranilate, and total volatile esters”

✓ located verbatim in the source · abstract, characters 1219–1411 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Increased berry maturity was associated with increased color intensity, anthocyanins and phenols.

Taxon
Table Grapest1
Organ / stage
berrye7
Outcome
color intensity, anthocyanins, phenolse7
Direction
increasede7

Verbatim

t1

“Sovereign Coronation Table Grapes”

✓ located verbatim in the source · title, characters 128–161 · show in text ↑
e7

“Increased berry maturity was associated with decreased berry weight and titratable acidity, and increased color intensity, anthocyanins, phenols, methyl anthranilate, and total volatile esters”

✓ located verbatim in the source · abstract, characters 1219–1411 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Increased berry maturity was associated with increased methyl anthranilate and total volatile esters.

Taxon
Table Grapest1
Organ / stage
berrye7
Outcome
methyl anthranilate, and total volatile esterse7
Direction
increasede7

Verbatim

t1

“Sovereign Coronation Table Grapes”

✓ located verbatim in the source · title, characters 128–161 · show in text ↑
e7

“Increased berry maturity was associated with decreased berry weight and titratable acidity, and increased color intensity, anthocyanins, phenols, methyl anthranilate, and total volatile esters”

✓ located verbatim in the source · abstract, characters 1219–1411 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Soluble solids of 17 Brix or more were associated with sweetness and fruity flavor.

Taxon
Table Grapest1
Treatment
soluble solids ≥17 Brixe7
Outcome
sweetness, fruitye7
Direction
higherinferrede7

Verbatim

t1

“Sovereign Coronation Table Grapes”

✓ located verbatim in the source · title, characters 128–161 · show in text ↑
e7

“Principal component analysis coupled with discriminant analysis suggested that soluble solids ≥17 Brix was associated with sweetness, fruity, labrusca, and overall impression”

✓ located verbatim in the source · abstract, characters 1413–1587 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Soluble solids of 17 Brix or more were associated with labrusca and overall impression.

Taxon
Table Grapest1
Treatment
soluble solids ≥17 Brixe7
Outcome
labrusca, and overall impressione7
Direction
higherinferrede7

Verbatim

t1

“Sovereign Coronation Table Grapes”

✓ located verbatim in the source · title, characters 128–161 · show in text ↑
e7

“Principal component analysis coupled with discriminant analysis suggested that soluble solids ≥17 Brix was associated with sweetness, fruity, labrusca, and overall impression”

✓ located verbatim in the source · abstract, characters 1413–1587 · show in text ↑

Gibberellic acid · quality: general · VitisResults differ

12 papers: 9 positive, 3 negative or no effect

8 papers in the same direction as this paper · 3 in the opposite direction

  1. no effect
  2. no effect
  3. no effect

8 papers more in this group

See all 12 papers →

Gibberellic acid · quality: sugar starch · VitisResults differ

21 papers: 16 positive, 5 negative or no effect

15 papers in the same direction as this paper · 5 in the opposite direction

  1. negative
  2. negative
  3. no effect

17 papers more in this group

See all 21 papers →

Gibberellic acid · molecular: metabolites · VitisResults differ

30 papers: 23 positive, 7 negative or no effect

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

  1. positive
  2. negative
  3. no effect

26 papers more in this group

See all 30 papers →

Gibberellic acid · yield · VitisResults differ

47 papers: 39 positive, 8 negative or no effect

38 papers in the same direction as this paper · 7 in the opposite direction · 1 reporting no difference from an alternative

  1. positive
  2. no effect
  3. no effect

43 papers more in this group

See all 47 papers →

Gibberellic acid · quality: phytochemicals · VitisPositive and negative results

9 papers: 8 positive, 1 negative or no effect

7 papers in the same direction as this paper · 1 in the opposite direction

  1. no effect
  2. positive
  3. positive

5 papers more in this group

See all 9 papers →

pruning · growth · VitisPositive and negative results

48 papers: 29 positive, 19 negative or no effect

28 papers in the same direction as this paper · 18 in the opposite direction · 1 reporting no difference from an alternative

  1. positive
  2. negative
  3. negative

44 papers more in this group

See all 48 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.