Paper · 1990 · Journal of Horticultural Science

The influence of paclobutrazol on the growth and cropping of sweet cherry cultivars.

A. D. Webster

9
claims
20
verbatim quotes
6
citations
3
research areas
—
Not open access

Abstract

Paclobutrazol (1.6 g a.i.), applied to the soil beneath nine year old trees of two sweet cherry cultivars in 1983, controlled shoot growth better in the year of treatment than foliar sprays (1500 followed by 750 mg l-1) of the same chemical applied in late May and early June. Although no further treatments were applied, extension growth was strongly inhibited by both treatments in the two subsequent years and some inhibition persisted for four years after treatment. Inhibition of the shoot growth of both cultivars was more severe and persisted for several years longer for trees on ‘Colt’, compared with F. 12/1 rootstock. Paclobutrazol foliar sprays reduced yields in the year of treatment, and the residual effects of both soil and foliar treatments on yields were also negative in some years, particularly on the cv. Van. The reasons for these negative effects on yields were sought in studies of flowering density, flower quality and the efficiency of fruit set and retention.

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Claims 9

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Soil paclobutrazol controlled shoot growth better than foliar spray in the treatment year.

Taxon
sweet cherryPrunus aviume0
Treatment
Paclobutrazol (1.6 g a.i.), applied to the soile0
Outcome
shoot growthe0
Direction
bettere0
Comparator
foliar sprays (1500 followed by 750 mg l-1)e0

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

Prunus avium
Prunus avium · TaxonMPF · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“Paclobutrazol (1.6 g a.i.), applied to the soil beneath nine year old trees of two sweet cherry cultivars in 1983, controlled shoot growth better in the year of treatment than foliar sprays (1500 followed by 750 mg l-1) of the same chemical applied in late May and early June”

✓ located verbatim in the source · abstract, characters 0–275 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Soil paclobutrazol strongly inhibited extension growth over the two subsequent years.

Taxon
sweet cherryPrunus aviume1
Treatment
Paclobutrazol (1.6 g a.i.), applied to the soile1
Outcome
extension growthe0
Direction
inhibitede0
Qualifier
two subsequent yearse0

Not reportedComparator

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

Prunus avium
Prunus avium · TaxonMPF · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“extension growth was strongly inhibited by both treatments in the two subsequent years”

✓ located verbatim in the source · abstract, characters 322–408 · show in text ↑
e1

“Paclobutrazol (1.6 g a.i.), applied to the soil beneath nine year old trees of two sweet cherry cultivars”

✓ located verbatim in the source · abstract, characters 0–105 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Foliar paclobutrazol strongly inhibited extension growth over the two subsequent years.

Taxon
sweet cherryPrunus aviumt0
Treatment
foliar sprays (1500 followed by 750 mg l-1)e1
Outcome
extension growthe0
Direction
inhibitede0
Qualifier
two subsequent yearse0

Not reportedComparator

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

Prunus avium
Prunus avium · TaxonMPF · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“extension growth was strongly inhibited by both treatments in the two subsequent years”

✓ located verbatim in the source · abstract, characters 322–408 · show in text ↑
e1

“foliar sprays (1500 followed by 750 mg l-1) of the same chemical”

✓ located verbatim in the source · abstract, characters 176–240 · show in text ↑
t0

“sweet cherry”

✓ located verbatim in the source · title, characters 61–73 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Some growth inhibition remained four years after paclobutrazol treatment.

Taxon
sweet cherryPrunus aviumt0
Treatment
paclobutrazolt0
Outcome
growtht0
Direction
inhibitione0
Qualifier
four years after treatmente0

Not reportedComparator

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

Prunus avium
Prunus avium · TaxonMPF · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“some inhibition persisted for four years after treatment”

✓ located verbatim in the source · abstract, characters 413–469 · show in text ↑
t0

“paclobutrazol on the growth and cropping of sweet cherry cultivars”

✓ located verbatim in the source · title, characters 17–83 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Shoot growth inhibition was more severe on Colt than F. 12/1 rootstock.

Taxon
sweet cherryPrunus aviumt0
Treatment
‘Colt’e0
Outcome
Inhibition of the shoot growthe0
Direction
more severee0
Comparator
F. 12/1 rootstocke0

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

Prunus avium
Prunus avium · TaxonMPF · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“Inhibition of the shoot growth of both cultivars was more severe and persisted for several years longer for trees on ‘Colt’, compared with F. 12/1 rootstock”

✓ located verbatim in the source · abstract, characters 471–627 · show in text ↑
t0

“sweet cherry”

✓ located verbatim in the source · title, characters 61–73 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Shoot growth inhibition lasted several years longer on Colt than F. 12/1 rootstock.

Taxon
sweet cherryPrunus aviumt0
Treatment
‘Colt’e0
Outcome
Inhibition of the shoot growthe0
Direction
persisted for several years longere0
Comparator
F. 12/1 rootstocke0

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

Prunus avium
Prunus avium · TaxonMPF · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“Inhibition of the shoot growth of both cultivars was more severe and persisted for several years longer for trees on ‘Colt’, compared with F. 12/1 rootstock”

✓ located verbatim in the source · abstract, characters 471–627 · show in text ↑
t0

“sweet cherry”

✓ located verbatim in the source · title, characters 61–73 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Foliar paclobutrazol sprays reduced sweet cherry yields in the treatment year.

Taxon
sweet cherryPrunus aviumt0
Treatment
Paclobutrazol foliar sprayse0
Outcome
yieldse0
Direction
reducede0
Qualifier
year of treatmente0

Not reportedComparator

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

Prunus avium
Prunus avium · TaxonMPF · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“Paclobutrazol foliar sprays reduced yields in the year of treatment”

✓ located verbatim in the source · abstract, characters 629–696 · show in text ↑
t0

“sweet cherry”

✓ located verbatim in the source · title, characters 61–73 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Residual soil paclobutrazol effects on yield were negative in some years, particularly for Van.

Taxon
sweet cherryPrunus aviumt0
Material
cv. Vane0
Treatment
Paclobutrazol (1.6 g a.i.), applied to the soile1
Outcome
yieldse0
Direction
negativee0

Not reportedComparator

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

Prunus avium
Prunus avium · TaxonMPF · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“the residual effects of both soil and foliar treatments on yields were also negative in some years, particularly on the cv. Van”

✓ located verbatim in the source · abstract, characters 702–829 · show in text ↑
e1

“Paclobutrazol (1.6 g a.i.), applied to the soil beneath nine year old trees of two sweet cherry cultivars”

✓ located verbatim in the source · abstract, characters 0–105 · show in text ↑
t0

“sweet cherry”

✓ located verbatim in the source · title, characters 61–73 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Residual foliar paclobutrazol effects on yield were negative in some years, particularly for Van.

Taxon
sweet cherryPrunus aviumt0
Material
cv. Vane0
Treatment
foliar sprays (1500 followed by 750 mg l-1)e1
Outcome
yieldse0
Direction
negativee0

Not reportedComparator

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

Prunus avium
Prunus avium · TaxonMPF · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“the residual effects of both soil and foliar treatments on yields were also negative in some years, particularly on the cv. Van”

✓ located verbatim in the source · abstract, characters 702–829 · show in text ↑
e1

“foliar sprays (1500 followed by 750 mg l-1) of the same chemical”

✓ located verbatim in the source · abstract, characters 176–240 · show in text ↑
t0

“sweet cherry”

✓ located verbatim in the source · title, characters 61–73 · show in text ↑

paclobutrazol · yield · Prunus avium (sweet cherry)Results differ

8 papers: 6 positive, 2 negative or no effect

1 paper in the same direction as this paper · 6 in the opposite direction

  1. positive
  2. positive
  3. positive

4 papers more in this group

See all 8 papers →

paclobutrazol · growth · Prunus avium (sweet cherry)Results agree

6 papers: 6 positive, 0 negative or no effect

5 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

2 papers more in this group

See all 6 papers →

application · growth · Prunus avium (sweet cherry)Positive and negative results

9 papers: 4 positive, 5 negative or no effect

3 papers in the same direction as this paper · 5 in the opposite direction

  1. no effect
  2. negative
  3. no effect

5 papers more in this group

See all 9 papers →

application · yield · Prunus avium (sweet cherry)Positive and negative results

19 papers: 11 positive, 8 negative or no effect

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

  1. positive
  2. positive
  3. positive

15 papers more in this group

See all 19 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.