Paper · 1990 · Journal of Horticultural Science

The influence of bloom thinning and GA3sprays on flower bud numbers and distribution in peach trees

R. E. Byers; D. H. Carbaugh; C. N. Presley

13
claims
32
verbatim quotes
36
citations
3
research areas
—
Not open access

Abstract

Bloom thinning mature peach trees increased shoot growth on sample limbs of 7.5-11 cm circumference by 53% when compared with trees hand thinned 44 days after full bloom (AFB). The number of flower buds per limb was increased by 103%. Bloom thinning increased the number of shoots which were 20 to 50 cm long by 86%. The number of buds on the basal five nodes of shoots 7-20 cm long was more than 2.2 times that of hand thinned trees. Shoots 7-64 cm long had more buds per cm shoot length. Application of 100 mg I"1 GA3, 0, 12, 36 and 47 days AFB inhibited flower buds and reduced the subsequent year’s cropping. Applications of GA3 36 and 47 days AFB inhibited flower bud development on short shoots more than when applied at 0 or 12 days AFB. None of the GA3 treatments affected flower bud development on the upper half of long shoots, but reduced numbers on short shoots. Fruit on long shoots were larger than those on short ones, and fruit on the upper half of all shoots were larger than those on the lower half. Later GA3 sprays resulted in more fruit on the upper half of all shoots. Flower buds were inhibited more strongly on short shoots.

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 13

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Bloom thinning increased peach shoot growth by 53% compared with hand thinning 44 days after full bloom.

Taxon
peach treesPrunus persicat0
Treatment
Bloom thinninge0
Outcome
shoot growthe0
Direction
increasede0
Value
53%e0
Qualifier
sample limbs of 7.5-11 cm circumferencee0
Comparator
trees hand thinned 44 days after full bloome0

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

Prunus persica
Prunus persica · TaxonAllagash Brewing · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

t0

“peach trees”

✓ located verbatim in the source · title, characters 88–99 · show in text ↑
e0

“Bloom thinning mature peach trees increased shoot growth on sample limbs of 7.5-11 cm circumference by 53% when compared with trees hand thinned 44 days after full bloom (AFB).”

✓ located verbatim in the source · abstract, characters 0–176 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Bloom thinning increased flower buds per limb by 103%.

Taxon
peach treesPrunus persicat0
Treatment
Bloom thinninge1
Outcome
number of flower buds per limbe0
Direction
increasede0
Value
103%e0
Comparator
trees hand thinned 44 days after full bloome2

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

Prunus persica
Prunus persica · TaxonAllagash Brewing · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

t0

“peach trees”

✓ located verbatim in the source · title, characters 88–99 · show in text ↑
e0

“The number of flower buds per limb was increased by 103%.”

✓ located verbatim in the source · abstract, characters 177–234 · show in text ↑
e1

“Bloom thinning mature peach trees”

✓ located verbatim in the source · abstract, characters 0–33 · show in text ↑
e2

“when compared with trees hand thinned 44 days after full bloom (AFB)”

✓ located verbatim in the source · abstract, characters 107–175 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Bloom thinning increased the number of 20 to 50 cm shoots by 86%.

Taxon
peach treesPrunus persicat0
Treatment
Bloom thinninge0
Outcome
number of shoots which were 20 to 50 cm longe0
Direction
increasede0
Value
86%e0
Comparator
trees hand thinned 44 days after full bloome1

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

Prunus persica
Prunus persica · TaxonAllagash Brewing · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

t0

“peach trees”

✓ located verbatim in the source · title, characters 88–99 · show in text ↑
e0

“Bloom thinning increased the number of shoots which were 20 to 50 cm long by 86%.”

✓ located verbatim in the source · abstract, characters 235–316 · show in text ↑
e1

“when compared with trees hand thinned 44 days after full bloom (AFB)”

✓ located verbatim in the source · abstract, characters 107–175 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Bloom thinning more than doubled buds on the basal five nodes of 7-20 cm shoots relative to hand thinning.

Taxon
peach treesPrunus persicat0
Treatment
Bloom thinninge1
Outcome
number of buds on the basal five nodes of shoots 7-20 cm longe0
Direction
more thane0
Value
2.2 timese0
Comparator
hand thinned treese0

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

Prunus persica
Prunus persica · TaxonAllagash Brewing · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

t0

“peach trees”

✓ located verbatim in the source · title, characters 88–99 · show in text ↑
e0

“The number of buds on the basal five nodes of shoots 7-20 cm long was more than 2.2 times that of hand thinned trees.”

✓ located verbatim in the source · abstract, characters 317–434 · show in text ↑
e1

“Bloom thinning mature peach trees”

✓ located verbatim in the source · abstract, characters 0–33 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Shoots 7-64 cm long had more buds per cm of shoot length after bloom thinning.

Taxon
peach treesPrunus persicat0
Organ / stage
Shoots 7-64 cm longe0
Treatment
Bloom thinninge1
Outcome
buds per cm shoot lengthe0
Direction
moree0
Comparator
hand thinned treese2

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

Prunus persica
Prunus persica · TaxonAllagash Brewing · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

t0

“peach trees”

✓ located verbatim in the source · title, characters 88–99 · show in text ↑
e0

“Shoots 7-64 cm long had more buds per cm shoot length.”

✓ located verbatim in the source · abstract, characters 435–489 · show in text ↑
e1

“Bloom thinning mature peach trees”

✓ located verbatim in the source · abstract, characters 0–33 · show in text ↑
e2

“hand thinned trees”

✓ located verbatim in the source · abstract, characters 415–433 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

GA3 application inhibited flower buds.

Taxon
peach treesPrunus persicat0
Treatment
Application of 100 mg I"1 GA3, 0, 12, 36 and 47 days AFBe0
Outcome
flower budse0
Direction
inhibitede0

Not reportedComparator

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

Prunus persica
Prunus persica · TaxonAllagash Brewing · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

t0

“peach trees”

✓ located verbatim in the source · title, characters 88–99 · show in text ↑
e0

“Application of 100 mg I"1 GA3, 0, 12, 36 and 47 days AFB inhibited flower buds and reduced the subsequent year’s cropping.”

✓ located verbatim in the source · abstract, characters 490–612 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

GA3 application reduced cropping in the subsequent year.

Taxon
peach treesPrunus persicat0
Treatment
Application of 100 mg I"1 GA3, 0, 12, 36 and 47 days AFBe0
Outcome
subsequent year’s croppinge0
Direction
reducede0

Not reportedComparator

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

Prunus persica
Prunus persica · TaxonAllagash Brewing · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

t0

“peach trees”

✓ located verbatim in the source · title, characters 88–99 · show in text ↑
e0

“Application of 100 mg I"1 GA3, 0, 12, 36 and 47 days AFB inhibited flower buds and reduced the subsequent year’s cropping.”

✓ located verbatim in the source · abstract, characters 490–612 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

GA3 applied at 36 or 47 days after full bloom inhibited bud development on short shoots more than application at 0 or 12 days.

Taxon
peach treesPrunus persicat0
Treatment
GA3 36 and 47 days AFBe0
Outcome
flower bud development on short shootse0
Direction
inhibitede0
Comparator
0 or 12 days AFBe0

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

Prunus persica
Prunus persica · TaxonAllagash Brewing · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

t0

“peach trees”

✓ located verbatim in the source · title, characters 88–99 · show in text ↑
e0

“Applications of GA3 36 and 47 days AFB inhibited flower bud development on short shoots more than when applied at 0 or 12 days AFB.”

✓ located verbatim in the source · abstract, characters 613–744 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

GA3 treatments did not affect flower bud development on the upper half of long shoots.

Taxon
peach treesPrunus persicat0
Treatment
GA3 treatmentse0
Outcome
flower bud development on the upper half of long shootse0
Direction
None of the GA3 treatments affectede0

Not reportedComparator

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

Prunus persica
Prunus persica · TaxonAllagash Brewing · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

t0

“peach trees”

✓ located verbatim in the source · title, characters 88–99 · show in text ↑
e0

“None of the GA3 treatments affected flower bud development on the upper half of long shoots”

✓ located verbatim in the source · abstract, characters 745–836 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

GA3 treatments reduced flower bud numbers on short shoots.

Taxon
peach treesPrunus persicat0
Treatment
GA3 treatmentse0
Outcome
numbers on short shootse0
Direction
reducede0

Not reportedComparator

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

Prunus persica
Prunus persica · TaxonAllagash Brewing · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

t0

“peach trees”

✓ located verbatim in the source · title, characters 88–99 · show in text ↑
e0

“None of the GA3 treatments affected flower bud development on the upper half of long shoots, but reduced numbers on short shoots.”

✓ located verbatim in the source · abstract, characters 745–874 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Fruit on long shoots were larger than fruit on short shoots.

Taxon
peach treesPrunus persicat0
Organ / stage
long shootse0
Outcome
Fruite0
Direction
largere0
Comparator
short onese0

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

Prunus persica
Prunus persica · TaxonAllagash Brewing · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

t0

“peach trees”

✓ located verbatim in the source · title, characters 88–99 · show in text ↑
e0

“Fruit on long shoots were larger than those on short ones”

✓ located verbatim in the source · abstract, characters 875–932 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Fruit on the upper half of shoots were larger than fruit on the lower half.

Taxon
peach treesPrunus persicat0
Organ / stage
upper half of all shootse0
Outcome
fruite0
Direction
largere0
Comparator
lower halfe0

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

Prunus persica
Prunus persica · TaxonAllagash Brewing · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

t0

“peach trees”

✓ located verbatim in the source · title, characters 88–99 · show in text ↑
e0

“fruit on the upper half of all shoots were larger than those on the lower half”

✓ located verbatim in the source · abstract, characters 938–1016 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Later GA3 sprays led to more fruit on the upper half of shoots.

Taxon
peach treesPrunus persicat0
Treatment
Later GA3 sprayse0
Outcome
fruit on the upper half of all shootse0
Direction
moree0

Not reportedComparator

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

Prunus persica
Prunus persica · TaxonAllagash Brewing · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

t0

“peach trees”

✓ located verbatim in the source · title, characters 88–99 · show in text ↑
e0

“Later GA3 sprays resulted in more fruit on the upper half of all shoots.”

✓ located verbatim in the source · abstract, characters 1018–1090 · show in text ↑

Gibberellic acid · growth · Prunus persica (peach)Results differ

23 papers: 19 positive, 4 negative or no effect

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

  1. positive
  2. positive
  3. positive

19 papers more in this group

See all 23 papers →

pruning · growth · Prunus persica (peach)Results differ

64 papers: 42 positive, 22 negative or no effect

41 papers in the same direction as this paper · 22 in the opposite direction

  1. negative
  2. negative
  3. negative

60 papers more in this group

See all 64 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.