Abstract
Improving lateral branch development in young sweet cherry trees without reliance on pruning is a desirable component of tree training programs, especially for high-density systems. Applications of two proprietary formulations of 6-benzyladenine and gibberellins A 4 and A 7 (Promalin, Valent Biosciences, Walnut Creek, Calif.; and Perlan, Fine Americas, Walnut Creek, Calif.) to individual buds or intact bark of unpruned sweet cherry central leader shoots at green-tip had little effect on lateral shoot growth from buds or on distribution of new shoot growth along the treated leader shoots. Scoring, nicking, or notching cuts alone also had inconsistent effects on shoot development and distribution. In some trials, bud removal (or disbudding, removing every fourth bud on 1-year-old shoots) produced limited improvement of lateral shoot development and vertical distribution. Combining nicking, notching, scoring, or bark scraping with the application of cytokinin–gibberellic acid solution to the cut area greatly improved both number of shoots developed and the numbers originating from the lower portions of treated leader shoots. Removing the physical barrier to bioregulator product contact with active tissues was a primary factor in improving treatment efficacy.
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Claims 5
Claim · model-written summary
Promalin and Perlan bud or bark applications had little effect on shoot growth or distribution.
- Taxon
- sweet cherry
Prunus aviume0 - Organ / stage
- individual buds or intact barke0
- Treatment
- Applications of two proprietary formulations of 6-benzyladenine and gibberellins A 4 and A 7e0
- Outcome
- lateral shoot growth from buds or on distribution of new shoot growthe0
- Direction
- little effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Applications of two proprietary formulations of 6-benzyladenine and gibberellins A 4 and A 7 (Promalin, Valent Biosciences, Walnut Creek, Calif.; and Perlan, Fine Americas, Walnut Creek, Calif.) to individual buds or intact bark of unpruned sweet cherry central leader shoots at green-tip had little effect on lateral shoot growth from buds or on distribution of new shoot growth along the treated leader shoots”
Claim · model-written summary
Scoring, nicking or notching alone had inconsistent shoot effects.
- Taxon
- sweet cherryPrunus aviumt0
- Treatment
- Scoring, nicking, or notching cuts alonee0
- Outcome
- shoot development and distributione0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Scoring, nicking, or notching cuts alone also had inconsistent effects on shoot development and distribution.”
t0“sweet cherry trees”
Claim · model-written summary
Disbudding produced limited lateral shoot and distribution improvement in some trials.
- Taxon
- sweet cherryPrunus aviumt0
- Treatment
- bud removal (or disbudding, removing every fourth bud on 1-year-old shoots)e0
- Outcome
- lateral shoot development and vertical distributione0
- Direction
- improvemente0
- Qualifier
- In some trialse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In some trials, bud removal (or disbudding, removing every fourth bud on 1-year-old shoots) produced limited improvement of lateral shoot development and vertical distribution.”
t0“sweet cherry trees”
Claim · model-written summary
Cuts or bark scraping plus cytokinin–gibberellic acid greatly increased shoot number and lower-shoot origin.
- Taxon
- sweet cherryPrunus aviumt0
- Treatment
- Combining nicking, notching, scoring, or bark scraping with the application of cytokinin–gibberellic acid solution to the cut areae0
- Outcome
- number of shoots developed and the numbers originating from the lower portions of treated leader shootse0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Combining nicking, notching, scoring, or bark scraping with the application of cytokinin–gibberellic acid solution to the cut area greatly improved both number of shoots developed and the numbers originating from the lower portions of treated leader shoots.”
t0“sweet cherry trees”
Claim · model-written summary
Removing the physical barrier to tissue contact primarily improved regulator efficacy.
- Taxon
- sweet cherryPrunus aviumt0
- Outcome
- treatment efficacye0
- Qualifier
- Removing the physical barrier to bioregulator product contact with active tissuese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Removing the physical barrier to bioregulator product contact with active tissues was a primary factor in improving treatment efficacy.”
t0“sweet cherry trees”
The same questions in other papers
class · growth · Prunus avium (sweet cherry)Positive and negative results
3 papers in the same direction as this paper · 2 in the opposite direction
- negative
- no effect
- positive
2 papers more in this group
See all 6 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.