Paper · 2005 · HortScience

Effects of Apogee on Growth and Whole-canopy Photosynthesis in Spur `Delicious' Apple Trees

D. Michael Glenn; Stephen S. Miller

8
claims
19
verbatim quotes
20
citations
4
research areas
✓
Open access

Abstract

This study examines the effect of multiple spray applications of Apogee on shoot growth and whole-canopy photosynthesis (WCPn) rate in young, bearing apple trees. Apogee increased fruit numbers and reduced shoot growth and inconsistently reduced leaf area but the reduction in photosynthetic area did not result in reduced WCPn or a detrimental effect on the fruit number:fruit size relationship. Since WCPn was not affected when leaf area was reduced by Apogee treatment, it suggests a greater photosynthetic efficiency of leaves on Apogee treated trees due to reduced shading. The use of Apogee for canopy management may produce a side-effect of increasing fruit set, which may be managed through a crop thinning program.

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 8

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Apogee sprays increased apple fruit numbers.

Taxon
apple treesMalus domesticae1
Treatment
multiple spray applications of Apogeee1
Outcome
fruit numberse2
Direction
increasede2

Not reportedComparator

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

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

Verbatim

e1

“multiple spray applications of Apogee on shoot growth and whole-canopy photosynthesis (WCPn) rate in young, bearing apple trees”

✓ located verbatim in the source · abstract, characters 34–161 · show in text ↑
e2

“Apogee increased fruit numbers”

✓ located verbatim in the source · abstract, characters 163–193 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Apogee sprays reduced apple shoot growth.

Taxon
apple treesMalus domesticae1
Treatment
multiple spray applications of Apogeee1
Outcome
shoot growthe3
Direction
reducede3

Not reportedComparator

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

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

Verbatim

e1

“multiple spray applications of Apogee on shoot growth and whole-canopy photosynthesis (WCPn) rate in young, bearing apple trees”

✓ located verbatim in the source · abstract, characters 34–161 · show in text ↑
e2

“Apogee increased fruit numbers”

✓ located verbatim in the source · abstract, characters 163–193 · show in text ↑
e3

“reduced shoot growth”

✓ located verbatim in the source · abstract, characters 198–218 · show in text ↑
Intervention effectobservedoriginal resultmixedmeasured

Claim · model-written summary

Apogee sprays inconsistently reduced apple leaf area.

Taxon
apple treesMalus domesticae1
Treatment
multiple spray applications of Apogeee1
Outcome
leaf areae4
Direction
inconsistently reducede4

Not reportedComparator

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

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

Verbatim

e1

“multiple spray applications of Apogee on shoot growth and whole-canopy photosynthesis (WCPn) rate in young, bearing apple trees”

✓ located verbatim in the source · abstract, characters 34–161 · show in text ↑
e4

“inconsistently reduced leaf area”

✓ located verbatim in the source · abstract, characters 223–255 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

The reduction in photosynthetic area under Apogee did not reduce whole-canopy photosynthesis (WCPn).

Taxon
apple treesMalus domesticae1
Treatment
multiple spray applications of Apogeee1
Outcome
WCPne5
Direction
did not result in reducede5

Not reportedComparator

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

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

Verbatim

e1

“multiple spray applications of Apogee on shoot growth and whole-canopy photosynthesis (WCPn) rate in young, bearing apple trees”

✓ located verbatim in the source · abstract, characters 34–161 · show in text ↑
e2

“Apogee increased fruit numbers”

✓ located verbatim in the source · abstract, characters 163–193 · show in text ↑
e5

“the reduction in photosynthetic area did not result in reduced WCPn or a detrimental effect on the fruit number:fruit size relationship”

✓ located verbatim in the source · abstract, characters 260–395 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

The reduction in photosynthetic area under Apogee had no detrimental effect on the fruit number:fruit size relationship.

Taxon
apple treesMalus domesticae1
Treatment
multiple spray applications of Apogeee1
Outcome
fruit number:fruit size relationshipe5
Direction
did not result ine5

Not reportedComparator

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

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

Verbatim

e1

“multiple spray applications of Apogee on shoot growth and whole-canopy photosynthesis (WCPn) rate in young, bearing apple trees”

✓ located verbatim in the source · abstract, characters 34–161 · show in text ↑
e2

“Apogee increased fruit numbers”

✓ located verbatim in the source · abstract, characters 163–193 · show in text ↑
e5

“the reduction in photosynthetic area did not result in reduced WCPn or a detrimental effect on the fruit number:fruit size relationship”

✓ located verbatim in the source · abstract, characters 260–395 · show in text ↑
Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

Apogee treated apple trees appear to have greater photosynthetic efficiency of leaves because of reduced shading.

Taxon
apple treesMalus domesticae1
Treatment
Apogee treatmente6
Outcome
photosynthetic efficiency of leavese6
Direction
greatere6
Qualifier
due to reduced shadinge6

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

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

Verbatim

e1

“multiple spray applications of Apogee on shoot growth and whole-canopy photosynthesis (WCPn) rate in young, bearing apple trees”

✓ located verbatim in the source · abstract, characters 34–161 · show in text ↑
e6

“Since WCPn was not affected when leaf area was reduced by Apogee treatment, it suggests a greater photosynthetic efficiency of leaves on Apogee treated trees due to reduced shading”

✓ located verbatim in the source · abstract, characters 397–577 · show in text ↑
Associationhypothesisoriginal resultbasis n/a

Claim · model-written summary

Apogee use may increase apple fruit set as a side-effect.

Taxon
apple treesMalus domesticae1
Treatment
Apogeee7
Outcome
fruit sete7
Direction
increasinge7

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

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

Verbatim

e1

“multiple spray applications of Apogee on shoot growth and whole-canopy photosynthesis (WCPn) rate in young, bearing apple trees”

✓ located verbatim in the source · abstract, characters 34–161 · show in text ↑
e7

“The use of Apogee for canopy management may produce a side-effect of increasing fruit set”

✓ located verbatim in the source · abstract, characters 579–668 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

The authors recommend managing the Apogee-induced fruit set increase with a crop thinning program.

Taxon
apple treesMalus domesticae1
Outcome
crop thinning programe2

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

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

Verbatim

e1

“multiple spray applications of Apogee on shoot growth and whole-canopy photosynthesis (WCPn) rate in young, bearing apple trees”

✓ located verbatim in the source · abstract, characters 34–161 · show in text ↑
e2

“which may be managed through a crop thinning program”

✓ located verbatim in the source · abstract, characters 670–722 · show in text ↑

application · physiology: photosynthesis · Malus domestica (apple)Positive and negative results

21 papers: 9 positive, 12 negative or no effect

11 papers in the same direction as this paper · 9 in the opposite direction

  1. no effect
  2. positive
  3. positive

17 papers more in this group

See all 21 papers →

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

107 papers: 76 positive, 31 negative or no effect

75 papers in the same direction as this paper · 31 in the opposite direction

  1. positive
  2. no effect
  3. no effect

103 papers more in this group

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application · yield · Malus domestica (apple)Positive and negative results

141 papers: 107 positive, 34 negative or no effect

106 papers in the same direction as this paper · 32 in the opposite direction · 2 reporting no difference from an alternative

  1. positive
  2. negative
  3. no effect

137 papers more in this group

See all 141 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.