Paper · 1965 · American Journal of Enology and Viticulture

Effects of Several Nematode-Resistant Rootstocks on Vine Vigor, Crop Level, and Nutrition with the Grape Variety, Grenache

L. A. Lider; N. L. Ferrari; J. J. Kissler

12
claims
27
verbatim quotes
2
citations
3
research areas
—
Not open access

Abstract

A regulated level of pruning, in which the number of fruiting units retained is balanced with the past vegetative growth of the vine, did not entirely overcome the low-yielding tendencies of very vigorous grafted vines. Fruiting efficiency of the individual spur, based on the ratio of prunings to fruit produced, was markedly lower from vines on the very vigorous stock, Dogridge, and highest on the own-rooted Grenache vines. Over the six-year period that harvest records were obtained, the heaviest-yielding vines and those showing the best balance between growth and fruit production were on the V. Champini selection, Salt Creek. Total carbohydrate content was markedly increased and total nitrogen level decreased in the shoots by girdling during bloom. Only the yields of the vigorous vines on Dogridge were increased by this treatment. Topping the vine at bloom did not change carbohydrate levels in the shoots at the time of berry shatter, but gave some reduction in vine vigor. A growth retardant, maleic hydrazide, used at 500 ppm as a foliar spray during bloom, was not effective in changing nutrient levels in the shoots. However, evident leaf symptoms and reduction in shoot elongation was noted late in the growing season.

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 12

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

A regulated level of pruning did not entirely overcome the low-yielding tendencies of very vigorous grafted vines.

Taxon
Grapet0
Treatment
A regulated level of pruninge0
Outcome
low-yielding tendencies of very vigorous grafted vinese0
Direction
did not entirely overcomee0

Not reportedComparator

Verbatim

t0

“Grape Variety, Grenache”

✓ located verbatim in the source · title, characters 99–122 · show in text ↑
e0

“A regulated level of pruning, in which the number of fruiting units retained is balanced with the past vegetative growth of the vine, did not entirely overcome the low-yielding tendencies of very vigorous grafted vines”

✓ located verbatim in the source · abstract, characters 0–218 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Fruiting efficiency of the spur was markedly lower on the vigorous Dogridge stock than on own-rooted Grenache vines.

Taxon
Grapet0
Material
Dogridgee1
Outcome
Fruiting efficiency of the individual spure1
Direction
lowere1
Comparator
own-rooted Grenache vinese1

Verbatim

t0

“Grape Variety, Grenache”

✓ located verbatim in the source · title, characters 99–122 · show in text ↑
e1

“Fruiting efficiency of the individual spur, based on the ratio of prunings to fruit produced, was markedly lower from vines on the very vigorous stock, Dogridge, and highest on the own-rooted Grenache vines”

✓ located verbatim in the source · abstract, characters 220–426 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

The heaviest-yielding vines over six years were on the V. Champini selection Salt Creek.

Taxon
Grapet0
Material
V. Champini selection, Salt Creeke2
Outcome
heaviest-yielding vinese2
Qualifier
Over the six-year period that harvest records were obtainede2

Verbatim

t0

“Grape Variety, Grenache”

✓ located verbatim in the source · title, characters 99–122 · show in text ↑
e2

“Over the six-year period that harvest records were obtained, the heaviest-yielding vines and those showing the best balance between growth and fruit production were on the V. Champini selection, Salt Creek”

✓ located verbatim in the source · abstract, characters 428–633 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Vines on the V. Champini selection Salt Creek showed the best balance between growth and fruit production.

Taxon
Grapet0
Material
V. Champini selection, Salt Creeke2
Outcome
the best balance between growth and fruit productione2

Verbatim

t0

“Grape Variety, Grenache”

✓ located verbatim in the source · title, characters 99–122 · show in text ↑
e2

“Over the six-year period that harvest records were obtained, the heaviest-yielding vines and those showing the best balance between growth and fruit production were on the V. Champini selection, Salt Creek”

✓ located verbatim in the source · abstract, characters 428–633 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Girdling during bloom markedly increased total carbohydrate content in the shoots.

Taxon
Grapet0
Organ / stage
shootse3
Treatment
girdling during bloome3
Outcome
Total carbohydrate contente3
Direction
increasede3

Not reportedComparator

Verbatim

t0

“Grape Variety, Grenache”

✓ located verbatim in the source · title, characters 99–122 · show in text ↑
e3

“Total carbohydrate content was markedly increased and total nitrogen level decreased in the shoots by girdling during bloom”

✓ located verbatim in the source · abstract, characters 635–758 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Girdling during bloom decreased total nitrogen level in the shoots.

Taxon
Grapet0
Organ / stage
shootse3
Treatment
girdling during bloome3
Outcome
total nitrogen levele3
Direction
decreasede3

Not reportedComparator

Verbatim

t0

“Grape Variety, Grenache”

✓ located verbatim in the source · title, characters 99–122 · show in text ↑
e3

“Total carbohydrate content was markedly increased and total nitrogen level decreased in the shoots by girdling during bloom”

✓ located verbatim in the source · abstract, characters 635–758 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Girdling increased yields only of the vigorous vines on Dogridge.

Taxon
Grapet0
Treatment
girdlinge3
Outcome
the yields of the vigorous vines on Dogridgee4
Direction
increasede4

Not reportedComparator

Verbatim

t0

“Grape Variety, Grenache”

✓ located verbatim in the source · title, characters 99–122 · show in text ↑
e3

“Total carbohydrate content was markedly increased and total nitrogen level decreased in the shoots by girdling during bloom”

✓ located verbatim in the source · abstract, characters 635–758 · show in text ↑
e4

“Only the yields of the vigorous vines on Dogridge were increased by this treatment”

✓ located verbatim in the source · abstract, characters 760–842 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Topping the vine at bloom did not change carbohydrate levels in the shoots at berry shatter.

Taxon
Grapet0
Treatment
Topping the vine at bloome5
Outcome
carbohydrate levels in the shootse5
Direction
did not changee5
Qualifier
at the time of berry shattere5

Not reportedComparator

Verbatim

t0

“Grape Variety, Grenache”

✓ located verbatim in the source · title, characters 99–122 · show in text ↑
e5

“Topping the vine at bloom did not change carbohydrate levels in the shoots at the time of berry shatter, but gave some reduction in vine vigor”

✓ located verbatim in the source · abstract, characters 844–986 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Topping the vine at bloom gave some reduction in vine vigor.

Taxon
Grapet0
Treatment
Topping the vine at bloome5
Outcome
vine vigore5
Direction
some reductione5

Not reportedComparator

Verbatim

t0

“Grape Variety, Grenache”

✓ located verbatim in the source · title, characters 99–122 · show in text ↑
e5

“Topping the vine at bloom did not change carbohydrate levels in the shoots at the time of berry shatter, but gave some reduction in vine vigor”

✓ located verbatim in the source · abstract, characters 844–986 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

A foliar spray of maleic hydrazide at 500 ppm during bloom was not effective in changing nutrient levels in the shoots.

Taxon
Grapet0
Organ / stage
shootse6
Treatment
maleic hydrazide, used at 500 ppm as a foliar spray during bloome6
Outcome
nutrient levels in the shootse6
Direction
not effective in changinge6

Not reportedComparator

Verbatim

t0

“Grape Variety, Grenache”

✓ located verbatim in the source · title, characters 99–122 · show in text ↑
e6

“A growth retardant, maleic hydrazide, used at 500 ppm as a foliar spray during bloom, was not effective in changing nutrient levels in the shoots”

✓ located verbatim in the source · abstract, characters 988–1133 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Maleic hydrazide was followed by evident leaf symptoms late in the growing season.

Taxon
Grapet0
Treatment
maleic hydrazidee6
Outcome
evident leaf symptomse7
Qualifier
late in the growing seasone7

Not reportedDirection

Verbatim

t0

“Grape Variety, Grenache”

✓ located verbatim in the source · title, characters 99–122 · show in text ↑
e7

“evident leaf symptoms and reduction in shoot elongation was noted late in the growing season”

✓ located verbatim in the source · abstract, characters 1144–1236 · show in text ↑
e6

“A growth retardant, maleic hydrazide, used at 500 ppm as a foliar spray during bloom, was not effective in changing nutrient levels in the shoots”

✓ located verbatim in the source · abstract, characters 988–1133 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Maleic hydrazide was followed by a reduction in shoot elongation late in the growing season.

Taxon
Grapet0
Treatment
maleic hydrazidee6
Outcome
shoot elongatione7
Direction
reductione7
Qualifier
late in the growing seasone7

Verbatim

t0

“Grape Variety, Grenache”

✓ located verbatim in the source · title, characters 99–122 · show in text ↑
e7

“evident leaf symptoms and reduction in shoot elongation was noted late in the growing season”

✓ located verbatim in the source · abstract, characters 1144–1236 · show in text ↑
e6

“A growth retardant, maleic hydrazide, used at 500 ppm as a foliar spray during bloom, was not effective in changing nutrient levels in the shoots”

✓ located verbatim in the source · abstract, characters 988–1133 · show in text ↑

pruning · quality: sugar starch · VitisResults differ

61 papers: 41 positive, 20 negative or no effect

19 papers in the same direction as this paper · 41 in the opposite direction

  1. positive
  2. positive
  3. positive

57 papers more in this group

See all 61 papers →

application · nutrient: content · VitisPositive and negative results

37 papers: 35 positive, 2 negative or no effect

1 paper in the same direction as this paper · 35 in the opposite direction

  1. positive
  2. positive
  3. positive

33 papers more in this group

See all 37 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.