Paper · 1996 · Journal of American Pomological Society

Induction of Lateral Branching in Nursery Pear andApple Trees with Plant Growth Regulators

T. Jacyna

7
claims
12
verbatim quotes
14
citations
3
research areas
—
Not open access

Abstract

The summer following budding the trees of ‘Honey Sweet’ and ‘Seckel’ pear on ‘OHF 97’ rootstock, and ‘Liberty’ and ‘Stayman Red’ apple on ‘M.7A,’ were sprayed once or twice with BA+GA 4+7or sprayed once with dikegulac. Dikegulac caused severe phytotoxicity, reduced tree height and induced narrow-angled feathers. Both pear cultivars produced branches when sprayed with BA+GA 4+7at 1500 ppm but only the cv. ‘Honey Sweet’ produced branches when treated at 750 ppm of BA+GA 4+7. Single and double BA+GA 4+7sprays significantly increased total number of feathers with both apple but double applications at 250 ppm were the most effective.

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Claims 7

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

BA+GA 4+7 at 1500 ppm produced branches in both pear cultivars.

Treatment
BA+GA 4+7at 1500 ppme0
Outcome
branchese0
Direction
increaseinferrede0

Not reportedComparator

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

Pyrus communis
Pyrus communis · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Both pear cultivars produced branches when sprayed with BA+GA 4+7at 1500 ppm”

✓ located verbatim in the source · abstract, characters 314–390 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

BA+GA 4+7 at 750 ppm produced branches only in the pear cultivar Honey Sweet.

Material
Honey Sweete1
Treatment
750 ppm of BA+GA 4+7e1
Outcome
branchese1
Direction
increaseinferrede1

Not reportedComparator

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

Pyrus communis
Pyrus communis · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Both pear cultivars produced branches when sprayed with BA+GA 4+7at 1500 ppm”

✓ located verbatim in the source · abstract, characters 314–390 · show in text ↑
e1

“only the cv. ‘Honey Sweet’ produced branches when treated at 750 ppm of BA+GA 4+7”

✓ located verbatim in the source · abstract, characters 395–476 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Single and double BA+GA 4+7 sprays significantly increased the total number of feathers in apple.

Treatment
Single and double BA+GA 4+7sprayse2
Outcome
total number of featherse2
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

e2

“Single and double BA+GA 4+7sprays significantly increased total number of feathers with both apple”

✓ located verbatim in the source · abstract, characters 478–576 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Double applications of BA+GA 4+7 at 250 ppm were the most effective treatment for feathering in apple.

Treatment
double applications at 250 ppme3
Outcome
the most effectivee3
Direction
the most effectivee3

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

e2

“Single and double BA+GA 4+7sprays significantly increased total number of feathers with both apple”

✓ located verbatim in the source · abstract, characters 478–576 · show in text ↑
e3

“double applications at 250 ppm were the most effective”

✓ located verbatim in the source · abstract, characters 581–635 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Dikegulac caused severe phytotoxicity in nursery pear and apple trees.

Taxon
pear and apple treesMalus domesticaPyrus communist0
Treatment
Dikegulace5
Outcome
phytotoxicitye5
Direction
increaseinferrede5

Not reportedComparator

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗
Pyrus communis
Pyrus communis · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Induction of Lateral Branching in Nursery Pear andApple Trees”

✓ located verbatim in the source · title, characters 0–61 · show in text ↑
e5

“Dikegulac caused severe phytotoxicity, reduced tree height and induced narrow-angled feathers”

✓ located verbatim in the source · abstract, characters 219–312 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Dikegulac reduced tree height in nursery pear and apple trees.

Taxon
pear and apple treesMalus domesticaPyrus communist0
Treatment
Dikegulace5
Outcome
tree heighte5
Direction
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 ↗
Pyrus communis
Pyrus communis · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Induction of Lateral Branching in Nursery Pear andApple Trees”

✓ located verbatim in the source · title, characters 0–61 · show in text ↑
e5

“Dikegulac caused severe phytotoxicity, reduced tree height and induced narrow-angled feathers”

✓ located verbatim in the source · abstract, characters 219–312 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Dikegulac induced narrow-angled feathers in nursery pear and apple trees.

Taxon
pear and apple treesMalus domesticaPyrus communist0
Treatment
Dikegulace5
Outcome
narrow-angled featherse5
Direction
inducede5

Not reportedComparator

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗
Pyrus communis
Pyrus communis · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Induction of Lateral Branching in Nursery Pear andApple Trees”

✓ located verbatim in the source · title, characters 0–61 · show in text ↑
e5

“Dikegulac caused severe phytotoxicity, reduced tree height and induced narrow-angled feathers”

✓ located verbatim in the source · abstract, characters 219–312 · show in text ↑

Gibberellic acid · growth · Pyrus communis (pear)Results differ

12 papers: 9 positive, 3 negative or no effect

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

  1. no effect
  2. negative
  3. no effect

8 papers more in this group

See all 12 papers →

Dikegulac · growth · Malus domestica (apple)Results agree

2 papers: 0 positive, 2 negative or no effect

1 paper in the same direction as this paper

  1. negative
See all 2 papers →

N-benzyladenine · growth · Pyrus communis (pear)Results agree

12 papers: 12 positive, 0 negative or no effect

11 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

8 papers more in this group

See all 12 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.