Paper · 1978 · American Journal of Enology and Viticulture

Initial Response of Baco Noir Grapevines to Pruning Severity, Sucker Removal, and Weed Control

Michael E. Byrne; Gordon S. Howell

19
claims
38
verbatim quotes
25
citations
4
research areas
—
Not open access

Abstract

Excessive vegetative vigor of Baco noir (Vitis spp.) grapevines results in late season growth and winter injury. Various levels of weed control, pruning severity, and suckering were applied to 6-year-old vines and their effects on vine size, vine growth and nutrition, cold resistance, grape maturity, wine quality, and productivity were measured. Decreased pruning severity and sucker removal both reduced vine size while increasing yield per vine. Weed cover reduced vine size and was related to a very large yield reduction. Otherwise, weed control and sucker removal acted similarly and generally opposite to decreased pruning severity in their effects of increasing vine nitrogen, fruitfulness (yield/node retained), the number of clusters/node retained, wine extract, pH, color, and panel preference, and causing later fall acclimation. These initial data suggest that Baco noir grapevines should be pruned less severely than is now commercially practiced, that weed control should be practiced, and all suckers should be removed except those retained for trunk renewal.

Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗

The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 19

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Decreased pruning severity reduced vine size in Baco noir grapevines.

Taxon
Baco noir (Vitis spp.) grapevinesVitise0
Treatment
Decreased pruning severitye1
Outcome
vine sizee1
Direction
reducede1

Not reportedComparator

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

Vitis
Vitis · Taxon · picture of the genus (one of its species)Victor M. Vicente Selvas · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Baco noir (Vitis spp.) grapevines”

✓ located verbatim in the source · abstract, characters 30–63 · show in text ↑
e1

“Decreased pruning severity and sucker removal both reduced vine size while increasing yield per vine”

✓ located verbatim in the source · abstract, characters 348–448 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Decreased pruning severity increased yield per vine in Baco noir grapevines.

Taxon
Baco noir (Vitis spp.) grapevinesVitise0
Treatment
Decreased pruning severitye1
Outcome
yield per vinee1
Direction
increasinge1

Not reportedComparator

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

Vitis
Vitis · Taxon · picture of the genus (one of its species)Victor M. Vicente Selvas · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Baco noir (Vitis spp.) grapevines”

✓ located verbatim in the source · abstract, characters 30–63 · show in text ↑
e1

“Decreased pruning severity and sucker removal both reduced vine size while increasing yield per vine”

✓ located verbatim in the source · abstract, characters 348–448 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Sucker removal reduced vine size in Baco noir grapevines.

Taxon
Baco noir (Vitis spp.) grapevinesVitise0
Treatment
sucker removale1
Outcome
vine sizee1
Direction
reducede1

Not reportedComparator

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

Vitis
Vitis · Taxon · picture of the genus (one of its species)Victor M. Vicente Selvas · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Baco noir (Vitis spp.) grapevines”

✓ located verbatim in the source · abstract, characters 30–63 · show in text ↑
e1

“Decreased pruning severity and sucker removal both reduced vine size while increasing yield per vine”

✓ located verbatim in the source · abstract, characters 348–448 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Sucker removal increased yield per vine in Baco noir grapevines.

Taxon
Baco noir (Vitis spp.) grapevinesVitise0
Treatment
sucker removale1
Outcome
yield per vinee1
Direction
increasinge1

Not reportedComparator

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

Vitis
Vitis · Taxon · picture of the genus (one of its species)Victor M. Vicente Selvas · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Baco noir (Vitis spp.) grapevines”

✓ located verbatim in the source · abstract, characters 30–63 · show in text ↑
e1

“Decreased pruning severity and sucker removal both reduced vine size while increasing yield per vine”

✓ located verbatim in the source · abstract, characters 348–448 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Weed cover reduced vine size in Baco noir grapevines.

Taxon
Baco noir (Vitis spp.) grapevinesVitise0
Treatment
Weed covere2
Outcome
vine sizee2
Direction
reducede2

Not reportedComparator

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

Vitis
Vitis · Taxon · picture of the genus (one of its species)Victor M. Vicente Selvas · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Baco noir (Vitis spp.) grapevines”

✓ located verbatim in the source · abstract, characters 30–63 · show in text ↑
e2

“Weed cover reduced vine size and was related to a very large yield reduction”

✓ located verbatim in the source · abstract, characters 450–526 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Weed cover was related to a very large yield reduction in Baco noir grapevines.

Taxon
Baco noir (Vitis spp.) grapevinesVitise0
Treatment
Weed covere2
Outcome
yielde2
Direction
reductione2
Qualifier
very largee2

Not reportedComparator

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

Vitis
Vitis · Taxon · picture of the genus (one of its species)Victor M. Vicente Selvas · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Baco noir (Vitis spp.) grapevines”

✓ located verbatim in the source · abstract, characters 30–63 · show in text ↑
e2

“Weed cover reduced vine size and was related to a very large yield reduction”

✓ located verbatim in the source · abstract, characters 450–526 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Weed control increased vine nitrogen in Baco noir grapevines.

Taxon
Baco noir (Vitis spp.) grapevinesVitise0
Treatment
weed controle3
Outcome
vine nitrogene3
Direction
increasinge3

Not reportedComparator

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

Vitis
Vitis · Taxon · picture of the genus (one of its species)Victor M. Vicente Selvas · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Baco noir (Vitis spp.) grapevines”

✓ located verbatim in the source · abstract, characters 30–63 · show in text ↑
e3

“Otherwise, weed control and sucker removal acted similarly and generally opposite to decreased pruning severity in their effects of increasing vine nitrogen”

✓ located verbatim in the source · abstract, characters 528–684 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Sucker removal increased vine nitrogen in Baco noir grapevines.

Taxon
Baco noir (Vitis spp.) grapevinesVitise0
Treatment
sucker removale3
Outcome
vine nitrogene3
Direction
increasinge3

Not reportedComparator

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

Vitis
Vitis · Taxon · picture of the genus (one of its species)Victor M. Vicente Selvas · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Baco noir (Vitis spp.) grapevines”

✓ located verbatim in the source · abstract, characters 30–63 · show in text ↑
e3

“Otherwise, weed control and sucker removal acted similarly and generally opposite to decreased pruning severity in their effects of increasing vine nitrogen”

✓ located verbatim in the source · abstract, characters 528–684 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Weed control increased fruitfulness (yield per node retained) and the number of clusters per node retained.

Taxon
Baco noir (Vitis spp.) grapevinesVitise0
Treatment
weed controle3
Outcome
fruitfulness (yield/node retained), the number of clusters/node retainede3
Direction
increasinge3

Not reportedComparator

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

Vitis
Vitis · Taxon · picture of the genus (one of its species)Victor M. Vicente Selvas · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Baco noir (Vitis spp.) grapevines”

✓ located verbatim in the source · abstract, characters 30–63 · show in text ↑
e3

“Otherwise, weed control and sucker removal acted similarly and generally opposite to decreased pruning severity in their effects of increasing vine nitrogen, fruitfulness (yield/node retained), the number of clusters/node retained, wine extract, pH, color, and panel preference, and causing later fall acclimation”

✓ located verbatim in the source · abstract, characters 528–841 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Sucker removal increased fruitfulness (yield per node retained) and the number of clusters per node retained.

Taxon
Baco noir (Vitis spp.) grapevinesVitise0
Treatment
sucker removale3
Outcome
fruitfulness (yield/node retained), the number of clusters/node retainede3
Direction
increasinge3

Not reportedComparator

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

Vitis
Vitis · Taxon · picture of the genus (one of its species)Victor M. Vicente Selvas · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Baco noir (Vitis spp.) grapevines”

✓ located verbatim in the source · abstract, characters 30–63 · show in text ↑
e3

“Otherwise, weed control and sucker removal acted similarly and generally opposite to decreased pruning severity in their effects of increasing vine nitrogen, fruitfulness (yield/node retained), the number of clusters/node retained, wine extract, pH, color, and panel preference, and causing later fall acclimation”

✓ located verbatim in the source · abstract, characters 528–841 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Weed control increased wine extract, pH and colour of Baco noir wine.

Taxon
Baco noir (Vitis spp.) grapevinesVitise0
Treatment
weed controle3
Outcome
wine extract, pH, colore3
Direction
increasinge3

Not reportedComparator

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

Vitis
Vitis · Taxon · picture of the genus (one of its species)Victor M. Vicente Selvas · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Baco noir (Vitis spp.) grapevines”

✓ located verbatim in the source · abstract, characters 30–63 · show in text ↑
e3

“Otherwise, weed control and sucker removal acted similarly and generally opposite to decreased pruning severity in their effects of increasing vine nitrogen, fruitfulness (yield/node retained), the number of clusters/node retained, wine extract, pH, color, and panel preference, and causing later fall acclimation”

✓ located verbatim in the source · abstract, characters 528–841 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Sucker removal increased wine extract, pH and colour of Baco noir wine.

Taxon
Baco noir (Vitis spp.) grapevinesVitise0
Treatment
sucker removale3
Outcome
wine extract, pH, colore3
Direction
increasinge3

Not reportedComparator

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

Vitis
Vitis · Taxon · picture of the genus (one of its species)Victor M. Vicente Selvas · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Baco noir (Vitis spp.) grapevines”

✓ located verbatim in the source · abstract, characters 30–63 · show in text ↑
e3

“Otherwise, weed control and sucker removal acted similarly and generally opposite to decreased pruning severity in their effects of increasing vine nitrogen, fruitfulness (yield/node retained), the number of clusters/node retained, wine extract, pH, color, and panel preference, and causing later fall acclimation”

✓ located verbatim in the source · abstract, characters 528–841 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Weed control increased panel preference for Baco noir wine.

Taxon
Baco noir (Vitis spp.) grapevinesVitise0
Treatment
weed controle3
Outcome
panel preferencee3
Direction
increasinge3

Not reportedComparator

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

Vitis
Vitis · Taxon · picture of the genus (one of its species)Victor M. Vicente Selvas · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Baco noir (Vitis spp.) grapevines”

✓ located verbatim in the source · abstract, characters 30–63 · show in text ↑
e3

“Otherwise, weed control and sucker removal acted similarly and generally opposite to decreased pruning severity in their effects of increasing vine nitrogen, fruitfulness (yield/node retained), the number of clusters/node retained, wine extract, pH, color, and panel preference, and causing later fall acclimation”

✓ located verbatim in the source · abstract, characters 528–841 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Sucker removal increased panel preference for Baco noir wine.

Taxon
Baco noir (Vitis spp.) grapevinesVitise0
Treatment
sucker removale3
Outcome
panel preferencee3
Direction
increasinge3

Not reportedComparator

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

Vitis
Vitis · Taxon · picture of the genus (one of its species)Victor M. Vicente Selvas · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Baco noir (Vitis spp.) grapevines”

✓ located verbatim in the source · abstract, characters 30–63 · show in text ↑
e3

“Otherwise, weed control and sucker removal acted similarly and generally opposite to decreased pruning severity in their effects of increasing vine nitrogen, fruitfulness (yield/node retained), the number of clusters/node retained, wine extract, pH, color, and panel preference, and causing later fall acclimation”

✓ located verbatim in the source · abstract, characters 528–841 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Weed control caused later fall acclimation in Baco noir grapevines.

Taxon
Baco noir (Vitis spp.) grapevinesVitise0
Treatment
weed controle3
Outcome
fall acclimatione3
Direction
latere3

Not reportedComparator

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

Vitis
Vitis · Taxon · picture of the genus (one of its species)Victor M. Vicente Selvas · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Baco noir (Vitis spp.) grapevines”

✓ located verbatim in the source · abstract, characters 30–63 · show in text ↑
e3

“Otherwise, weed control and sucker removal acted similarly and generally opposite to decreased pruning severity in their effects of increasing vine nitrogen, fruitfulness (yield/node retained), the number of clusters/node retained, wine extract, pH, color, and panel preference, and causing later fall acclimation”

✓ located verbatim in the source · abstract, characters 528–841 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Sucker removal caused later fall acclimation in Baco noir grapevines.

Taxon
Baco noir (Vitis spp.) grapevinesVitise0
Treatment
sucker removale3
Outcome
fall acclimatione3
Direction
latere3

Not reportedComparator

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

Vitis
Vitis · Taxon · picture of the genus (one of its species)Victor M. Vicente Selvas · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Baco noir (Vitis spp.) grapevines”

✓ located verbatim in the source · abstract, characters 30–63 · show in text ↑
e3

“Otherwise, weed control and sucker removal acted similarly and generally opposite to decreased pruning severity in their effects of increasing vine nitrogen, fruitfulness (yield/node retained), the number of clusters/node retained, wine extract, pH, color, and panel preference, and causing later fall acclimation”

✓ located verbatim in the source · abstract, characters 528–841 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

Baco noir grapevines should be pruned less severely than current commercial practice.

Taxon
Baco noir (Vitis spp.) grapevinesVitise0
Outcome
pruned less severelye4

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

Vitis
Vitis · Taxon · picture of the genus (one of its species)Victor M. Vicente Selvas · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Baco noir (Vitis spp.) grapevines”

✓ located verbatim in the source · abstract, characters 30–63 · show in text ↑
e4

“These initial data suggest that Baco noir grapevines should be pruned less severely than is now commercially practiced”

✓ located verbatim in the source · abstract, characters 843–961 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

Weed control should be practiced in Baco noir vineyards.

Taxon
Baco noir (Vitis spp.) grapevinesVitise0
Outcome
weed control should be practicede5

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

Vitis
Vitis · Taxon · picture of the genus (one of its species)Victor M. Vicente Selvas · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Baco noir (Vitis spp.) grapevines”

✓ located verbatim in the source · abstract, characters 30–63 · show in text ↑
e5

“that weed control should be practiced”

✓ located verbatim in the source · abstract, characters 963–1000 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

All suckers should be removed except those retained for trunk renewal in Baco noir vineyards.

Taxon
Baco noir (Vitis spp.) grapevinesVitise0
Outcome
all suckers should be removed except those retained for trunk renewale6

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

Vitis
Vitis · Taxon · picture of the genus (one of its species)Victor M. Vicente Selvas · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Baco noir (Vitis spp.) grapevines”

✓ located verbatim in the source · abstract, characters 30–63 · show in text ↑
e6

“all suckers should be removed except those retained for trunk renewal”

✓ located verbatim in the source · abstract, characters 1006–1075 · show in text ↑

herbicide · yield · VitisPositive and negative results

7 papers: 5 positive, 2 negative or no effect

4 papers in the same direction as this paper · 2 in the opposite direction

  1. no effect
  2. negative
  3. positive

3 papers more in this group

See all 7 papers →

pruning · yield · VitisPositive and negative results

107 papers: 71 positive, 36 negative or no effect

70 papers in the same direction as this paper · 36 in the opposite direction

  1. no effect
  2. negative
  3. negative

103 papers more in this group

See all 107 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.