Paper · 1972 · Journal of the American Society for Horticultural Science

Effects of Plant Density, Training, and Pruning on Blackberry Yield1

W. A. Sheets; R. M. Bullock; R. Garren

6
claims
12
verbatim quotes
3
citations
3
research areas
✓
Open access · cc-by-nc-nd

Abstract

Abstract Plant density and date of training significantly affected the yield of the ‘Marion’ blackberry spaced at 2.5, 5.0 and 10.0 ft. Canes were trained in August, September, October and February, with a single variable in pruning. Four-year averages indicate highly significant increases in yield per acre at the higher plant densities. Highest yields were obtained from August-trained plants followed in order of yield by February, September and October-trained plants. Differences in yields due to pruning treatment were small and not significant. Increased yield from August-trained plants is attributed to stimulation of axillary buds and their subsequent lateral growth on which fruit buds developed.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc-nd. 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 6

Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Plant density significantly affected the yield of 'Marion' blackberry spaced at 2.5, 5.0 and 10.0 ft.

Taxon
blackberryRubuse0
Material
Marione0
Treatment
Plant densitye0
Outcome
yielde0
Comparator
2.5, 5.0 and 10.0 fte0

Not reportedDirection

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

Rubus
Rubus · Taxon · picture of the genus (one of its species)George Chernilevsky · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Plant density and date of training significantly affected the yield of the ‘Marion’ blackberry spaced at 2.5, 5.0 and 10.0 ft”

✓ located verbatim in the source · abstract, characters 9–134 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Date of training significantly affected blackberry yield; canes were trained in August, September, October and February.

Taxon
BlackberryRubust0
Treatment
date of traininge0
Outcome
yielde0
Comparator
August, September, October and Februarye1

Not reportedDirection

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

Rubus
Rubus · Taxon · picture of the genus (one of its species)George Chernilevsky · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Blackberry”

✓ located verbatim in the source · title, characters 51–61 · show in text ↑
e0

“Plant density and date of training significantly affected the yield”

✓ located verbatim in the source · abstract, characters 9–76 · show in text ↑
e1

“Canes were trained in August, September, October and February”

✓ located verbatim in the source · abstract, characters 136–197 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Four-year averages show highly significant increases in yield per acre at the higher plant densities.

Taxon
BlackberryRubust0
Treatment
higher plant densitiese0
Outcome
yield per acree0
Direction
increasese0

Not reportedComparator

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

Rubus
Rubus · Taxon · picture of the genus (one of its species)George Chernilevsky · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Blackberry”

✓ located verbatim in the source · title, characters 51–61 · show in text ↑
e0

“Four-year averages indicate highly significant increases in yield per acre at the higher plant densities”

✓ located verbatim in the source · abstract, characters 234–338 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Highest yields were obtained from August-trained plants, followed by February, September and October-trained plants.

Taxon
BlackberryRubust0
Treatment
August-trained plantse0
Outcome
Highest yieldse0
Direction
Higheste0
Comparator
February, September and October-trained plantse0

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

Rubus
Rubus · Taxon · picture of the genus (one of its species)George Chernilevsky · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Blackberry”

✓ located verbatim in the source · title, characters 51–61 · show in text ↑
e0

“Highest yields were obtained from August-trained plants followed in order of yield by February, September and October-trained plants”

✓ located verbatim in the source · abstract, characters 340–472 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Differences in yields due to pruning treatment were small and not significant.

Taxon
BlackberryRubust0
Treatment
pruning treatmente0
Outcome
yieldse0
Direction
smalle0

Not reportedComparator

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

Rubus
Rubus · Taxon · picture of the genus (one of its species)George Chernilevsky · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Blackberry”

✓ located verbatim in the source · title, characters 51–61 · show in text ↑
e0

“Differences in yields due to pruning treatment were small and not significant”

✓ located verbatim in the source · abstract, characters 474–551 · show in text ↑
Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

The increased yield from August-trained plants is attributed to stimulation of axillary buds and their subsequent lateral growth on which fruit buds developed.

Taxon
BlackberryRubust0
Organ / stage
axillary budse0
Treatment
August-trained plantse0
Outcome
Increased yielde0

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

Rubus
Rubus · Taxon · picture of the genus (one of its species)George Chernilevsky · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Blackberry”

✓ located verbatim in the source · title, characters 51–61 · show in text ↑
e0

“Increased yield from August-trained plants is attributed to stimulation of axillary buds and their subsequent lateral growth on which fruit buds developed”

✓ located verbatim in the source · abstract, characters 553–707 · show in text ↑

pruning · yield · Rubus (bramble)Positive and negative results

7 papers: 5 positive, 2 negative or no effect

1 paper in the same direction as this paper · 5 in the opposite direction

  1. positive
  2. positive
  3. positive

3 papers more in this group

See all 7 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.