Paper · 1984 · Journal of the American Society for Horticultural Science

Summer Pruning of ‘Gala’ Apple: The Relationships between Pruning Time, Radiation Penetration, and Fruit Quality

D. C. Morgan; C. J. Stanley; R. Volz; et al.

8
claims
22
verbatim quotes
39
citations
3
research areas
✓
Open access · cc-by-nc-nd

Abstract

Abstract Trees of apple cv. Gala ( Malus domestica Borkh.), which had previously been dormant pruned, were pruned in mid-December (early summer pruned—73 days after full bloom), mid-January (late summer pruned—108 days after full bloom), or were only dormant pruned (control). On 2 harvest dates (late February and early March) fruit from 4 different regions of the tree canopy were assessed for red blush, background color, soluble solids concentration, and fresh weight. Penetration of photosynthetic photon flux density (PPFD) to each region was measured at the summer pruning times and at the First harvest. Summer pruning increased the percentage of red blush—but not background color—for both pruning dates, decreased fresh weight of fruit from the early pruned trees, and decreased the soluble solids concentration of fruit from the late-pruned trees. The percentage of red blush and fruit fresh weight both showed a highly positive correlation with PPFD penetration, but for fruit fresh weight, the correlation also was dependent on the pruning treatment. The concentration of soluble solids also was related to PPFD penetration although, in comparison with fresh weight, the differences were reduced. Background color was relatively independent of tree position or pruning treatment.

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 8

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Summer pruning increased fruit red blush for both pruning dates compared with dormant pruning alone.

Organ / stage
fruite2
Treatment
Summer pruninge0
Outcome
percentage of red blushe0
Direction
increasede0
Comparator
dormant pruned (control)e1

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“Summer pruning increased the percentage of red blush—but not background color—for both pruning dates”

✓ located verbatim in the source · abstract, characters 612–712 · show in text ↑
e1

“or were only dormant pruned (control).”

✓ located verbatim in the source · abstract, characters 238–276 · show in text ↑
e2

“fruit from 4 different regions”

✓ located verbatim in the source · abstract, characters 328–358 · show in text ↑
t0

“‘Gala’ Apple”

✓ located verbatim in the source · title, characters 18–30 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Summer pruning did not change fruit background color for either pruning date.

Organ / stage
fruite2
Treatment
Summer pruninge0
Outcome
background colore0
Direction
note0
Comparator
dormant pruned (control)e1

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“Summer pruning increased the percentage of red blush—but not background color—for both pruning dates”

✓ located verbatim in the source · abstract, characters 612–712 · show in text ↑
e1

“or were only dormant pruned (control).”

✓ located verbatim in the source · abstract, characters 238–276 · show in text ↑
e2

“fruit from 4 different regions”

✓ located verbatim in the source · abstract, characters 328–358 · show in text ↑
t0

“‘Gala’ Apple”

✓ located verbatim in the source · title, characters 18–30 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Early summer pruning decreased fruit fresh weight compared with dormant pruning alone.

Treatment
early prunede0
Outcome
fresh weight of fruite0
Direction
decreasede0
Comparator
dormant pruned (control)e1

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“decreased fresh weight of fruit from the early pruned trees”

✓ located verbatim in the source · abstract, characters 714–773 · show in text ↑
e1

“or were only dormant pruned (control).”

✓ located verbatim in the source · abstract, characters 238–276 · show in text ↑
t0

“‘Gala’ Apple”

✓ located verbatim in the source · title, characters 18–30 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Late summer pruning decreased fruit soluble solids concentration compared with dormant pruning alone.

Treatment
late-prunede0
Outcome
soluble solids concentration of fruite0
Direction
decreasede0
Comparator
dormant pruned (control)e1

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“decreased the soluble solids concentration of fruit from the late-pruned trees”

✓ located verbatim in the source · abstract, characters 779–857 · show in text ↑
e1

“or were only dormant pruned (control).”

✓ located verbatim in the source · abstract, characters 238–276 · show in text ↑
t0

“‘Gala’ Apple”

✓ located verbatim in the source · title, characters 18–30 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Red blush was highly positively correlated with light penetration.

Outcome
percentage of red blushe0
Direction
highly positivee0
Setting
PPFD penetratione0

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“The percentage of red blush and fruit fresh weight both showed a highly positive correlation with PPFD penetration”

✓ located verbatim in the source · abstract, characters 859–973 · show in text ↑
t0

“‘Gala’ Apple”

✓ located verbatim in the source · title, characters 18–30 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Fruit fresh weight was highly positively correlated with light penetration, with the relationship dependent on pruning treatment.

Treatment
pruning treatmente0
Outcome
fruit fresh weighte0
Direction
highly positivee0

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“The percentage of red blush and fruit fresh weight both showed a highly positive correlation with PPFD penetration, but for fruit fresh weight, the correlation also was dependent on the pruning treatment.”

✓ located verbatim in the source · abstract, characters 859–1063 · show in text ↑
t0

“‘Gala’ Apple”

✓ located verbatim in the source · title, characters 18–30 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Soluble solids concentration was related to light penetration, with smaller differences than for fresh weight.

Outcome
concentration of soluble solidse0
Direction
relatede0
Comparator
fresh weighte0
Setting
PPFD penetratione0

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“The concentration of soluble solids also was related to PPFD penetration although, in comparison with fresh weight, the differences were reduced.”

✓ located verbatim in the source · abstract, characters 1064–1209 · show in text ↑
t0

“‘Gala’ Apple”

✓ located verbatim in the source · title, characters 18–30 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Background color was relatively independent of tree position and pruning treatment.

Treatment
pruning treatmente0
Outcome
Background colore0
Direction
relatively independente0

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“Background color was relatively independent of tree position or pruning treatment.”

✓ located verbatim in the source · abstract, characters 1210–1292 · show in text ↑
t0

“‘Gala’ Apple”

✓ located verbatim in the source · title, characters 18–30 · show in text ↑

pruning · quality: postharvest · Malus domestica (apple)Results differ

35 papers: 23 positive, 12 negative or no effect

11 papers in the same direction as this paper · 23 in the opposite direction

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

31 papers more in this group

See all 35 papers →

pruning · growth · Malus domestica (apple)Positive and negative results

106 papers: 58 positive, 48 negative or no effect

47 papers in the same direction as this paper · 58 in the opposite direction

  1. positive
  2. positive
  3. positive

102 papers more in this group

See all 106 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.