Abstract
Benzyladenine (BA) stimulated lateral branching on young apple (Malus domestica Borkh.) trees at concentrations as low as 100 mg·liter -1 . BA reduced lateral shoot length indirectly through increased intersboot competition, whereas daminozide reduced lateral shoot growth as a direct effect of the chemical inhibition. Daminozide reduced the number of spurs that were induced by BA to grow into lateral shoots. BA reduced the size of terminal buds on spurs that were stimulated to grow into lateral shoots. When daminozide was included with BA, spur quality was increased, as determined by Increased bud size. The positive effect of daminozide on BA-treated spurs was indirect, and other growth retardants used in combination with BA may be equally effective at improving spur quality. It may not be possible to stimulate lateral branching with BA on young trees just coming into production without causing an unacceptable amount of thinning. However, on bearing `Empire' trees, lateral shoot growth was increased with BA while still achieving an appropriate level of thinning. In general, there was no advantage to applying BA in a split application. Chemical names used: N-(phenylmethyl)-1H-purine-6-amine [benzyladenine (BA)]; butanedioic acid mono(2,2-dimethylhydrazide) (daminozide).
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Claims 9
Claim · model-written summary
BA stimulated lateral branching on young apple trees at concentrations as low as 100 mg·liter -1.
- Taxon
- apple
Malus domesticat0 - Treatment
- Benzyladenine (BA)e0
- Outcome
- lateral branchinge0
- Direction
- stimulatede0
- Value
- 100 mg·liter -1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Apple Trees”
e0“Benzyladenine (BA) stimulated lateral branching on young apple (Malus domestica Borkh.) trees at concentrations as low as 100 mg·liter -1 .”
Claim · model-written summary
BA indirectly reduced lateral shoot length through increased intershoot competition.
- Taxon
- appleMalus domesticat0
- Treatment
- BAe0
- Outcome
- lateral shoot lengthe0
- Direction
- reducede0
- Qualifier
- increased intersboot competitione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Apple Trees”
e0“BA reduced lateral shoot length indirectly through increased intersboot competition, whereas daminozide reduced lateral shoot growth as a direct effect of the chemical inhibition.”
Claim · model-written summary
Daminozide directly reduced lateral shoot growth.
- Taxon
- appleMalus domesticat0
- Treatment
- daminozidee0
- Outcome
- lateral shoot growthe0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Apple Trees”
e0“BA reduced lateral shoot length indirectly through increased intersboot competition, whereas daminozide reduced lateral shoot growth as a direct effect of the chemical inhibition.”
Claim · model-written summary
Daminozide reduced the number of BA-induced spurs growing into lateral shoots.
- Taxon
- appleMalus domesticat0
- Treatment
- Daminozidee0
- Outcome
- number of spurs that were induced by BA to grow into lateral shootse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Apple Trees”
e0“Daminozide reduced the number of spurs that were induced by BA to grow into lateral shoots.”
Claim · model-written summary
BA reduced terminal bud size on spurs stimulated to form lateral shoots.
- Taxon
- appleMalus domesticat0
- Treatment
- BAe0
- Outcome
- size of terminal budse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Apple Trees”
e0“BA reduced the size of terminal buds on spurs that were stimulated to grow into lateral shoots.”
Claim · model-written summary
Daminozide with BA increased spur quality, reflected by larger buds.
- Taxon
- appleMalus domesticat0
- Treatment
- daminozide was included with BAe0
- Outcome
- spur qualitye0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Apple Trees”
e0“When daminozide was included with BA, spur quality was increased, as determined by Increased bud size.”
Claim · model-written summary
BA increased lateral shoot growth in bearing Empire trees.
- Taxon
- appleMalus domesticat0
- Material
- `Empire'e0
- Treatment
- BAe0
- Outcome
- lateral shoot growthe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Apple Trees”
e0“However, on bearing `Empire' trees, lateral shoot growth was increased with BA while still achieving an appropriate level of thinning.”
Claim · model-written summary
BA achieved an appropriate level of thinning in bearing Empire trees.
- Taxon
- appleMalus domesticat0
- Material
- `Empire'e0
- Treatment
- BAe0
- Outcome
- appropriate level of thinninge0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Apple Trees”
e0“However, on bearing `Empire' trees, lateral shoot growth was increased with BA while still achieving an appropriate level of thinning.”
Claim · model-written summary
Split application of BA offered no advantage.
- Taxon
- appleMalus domesticat0
- Treatment
- BA in a split applicatione0
- Outcome
- advantagee0
- Direction
- no advantagee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Apple Trees”
e0“In general, there was no advantage to applying BA in a split application.”
The same questions in other papers
Daminozide · growth · Malus domestica (apple)Results differ
12 papers in the same direction as this paper · 10 in the opposite direction
- positive
- positive
- positive
19 papers more in this group
See all 23 papers →N-benzyladenine · growth · Malus domestica (apple)Results differ
39 papers in the same direction as this paper · 17 in the opposite direction
- no effect
- negative
- positive
53 papers more in this group
See all 57 papers →N-benzyladenine · quality: general · Malus domestica (apple)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
- positive
Daminozide · molecular: metabolites · Malus domestica (apple)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- positive
- no effect
- no effect
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.