Paper · 1963 · American Journal of Enology and Viticulture

Influence of Gibberellic Acid on the Grapevine and its Fruit in Czechoslovakia

Josef Blaha

4
claims
7
verbatim quotes
8
citations
4
research areas
—
Not open access

Abstract

The use of gibberellic acid on wine grapes to reduce compactness of the clusters and to increase yield is not recommended under viticultural conditions found in Czechoslovakia. Yield is reduced as a result of excessive shot berry fomation, the amount varying with the variety. Gibberellic acid advanced neither maturity of the fruit nor maturation of the vegetative parts of the vine.

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Claims 4

Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

Gibberellic acid use on wine grapes is not recommended under Czechoslovak viticultural conditions.

Taxon
wine grapesVitis viniferae0
Treatment
gibberellic acide0
Outcome
use of gibberellic acide0
Setting
viticultural conditions found in Czechoslovakiae0

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

e0

“The use of gibberellic acid on wine grapes to reduce compactness of the clusters and to increase yield is not recommended under viticultural conditions found in Czechoslovakia”

✓ located verbatim in the source · abstract, characters 0–175 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Gibberellic acid reduced yield of wine grapes, as a result of excessive shot berry formation.

Taxon
wine grapesVitis viniferae0
Treatment
gibberellic acide0
Outcome
Yielde1
Direction
reducede1
Qualifier
as a result of excessive shot berry fomatione1

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

e0

“The use of gibberellic acid on wine grapes to reduce compactness of the clusters”

✓ located verbatim in the source · abstract, characters 0–80 · show in text ↑
e1

“Yield is reduced as a result of excessive shot berry fomation, the amount varying with the variety”

✓ located verbatim in the source · abstract, characters 177–275 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Gibberellic acid causes excessive shot berry formation in wine grapes, with the amount varying by variety.

Taxon
wine grapesVitis viniferae0
Treatment
gibberellic acide0
Outcome
excessive shot berry fomatione1
Qualifier
the amount varying with the varietye1

Not reportedComparatorDirection

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

e0

“The use of gibberellic acid on wine grapes to reduce compactness of the clusters”

✓ located verbatim in the source · abstract, characters 0–80 · show in text ↑
e1

“Yield is reduced as a result of excessive shot berry fomation, the amount varying with the variety”

✓ located verbatim in the source · abstract, characters 177–275 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Gibberellic acid advanced neither fruit maturity nor maturation of the vegetative parts of the vine.

Taxon
wine grapesVitis viniferae0
Treatment
Gibberellic acide2
Outcome
maturity of the fruite2
Direction
advanced neithere2
Qualifier
maturation of the vegetative parts of the vinee2

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

e0

“The use of gibberellic acid on wine grapes”

✓ located verbatim in the source · abstract, characters 0–42 · show in text ↑
e2

“Gibberellic acid advanced neither maturity of the fruit nor maturation of the vegetative parts of the vine”

✓ located verbatim in the source · abstract, characters 277–383 · show in text ↑

Gibberellic acid · yield · Vitis vinifera (wine grape)Results differ

19 papers: 11 positive, 8 negative or no effect

7 papers in the same direction as this paper · 11 in the opposite direction

  1. no effect
  2. positive
  3. positive

15 papers more in this group

See all 19 papers →

Gibberellic acid · phenology · Vitis vinifera (wine grape)Positive and negative results

3 papers: 1 positive, 2 negative or no effect

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

  1. positive
  2. negative
See all 3 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.