Abstract
Axillary meristem fate patterns along shoots, also referred to as shoot structure, appear to be fairly consistent among trees within a genotype growing under similar conditions. Less is known about shoot structural plasticity following external manipulations, such as pruning. The aim of this study on almond (Prunus dulcis (Mill.)) shoots was to investigate how pruning severity affects the structure of 1-year-old shoots that grew after pruning (regrowth shoots), the 2-year-old portion of shoots that remained from the previous year's growth after pruning (pruned shoots), and whether regrowth shoots reiterate the structure of the original 1-year-old shoots before pruning. Three pruning severities were imposed and the structures along the different shoots were assessed by building hidden semi-Markov models of axillary meristem fates. The structures of regrowth and pruned shoots depended on pruning severity, but maintained some of the original shoot characteristics. Regrowth shoots developed more complex structures with severe pruning, but had simpler structures than original shoots indicating progressive simplification with tree age. Pruned shoot structures were affected by the severity of pruning, by the structure when the shoots were 1 year old, and probably by local competition among buds. Changes in structure due to pruning can be modelled and be predictable.
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Claims 5
Claim · model-written summary
Regrowth and pruned shoot structure depended on pruning severity yet retained original traits.
- Taxon
- almond
Prunus dulcist0 - Treatment
- pruning severitye0
- Outcome
- structures of regrowth and pruned shootse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The structures of regrowth and pruned shoots depended on pruning severity, but maintained some of the original shoot characteristics”
t0“almond trees”
Claim · model-written summary
Severe pruning produced more complex regrowth shoot structures.
- Taxon
- almondPrunus dulcist0
- Treatment
- severe pruninge0
- Outcome
- Regrowth shootse0
- Direction
- more complexe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Regrowth shoots developed more complex structures with severe pruning”
t0“almond trees”
Claim · model-written summary
Regrowth shoot structures were simpler than original shoots.
- Taxon
- almondPrunus dulcist0
- Outcome
- simpler structurese0
- Direction
- simplere0
- Comparator
- original shootse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“had simpler structures than original shoots indicating progressive simplification with tree age”
t0“almond trees”
Claim · model-written summary
Pruned shoot structures were associated with pruning severity, prior structure and probably local bud competition.
- Taxon
- almondPrunus dulcist0
- Outcome
- Pruned shoot structurese0
- Qualifier
- probably by local competition among budse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pruned shoot structures were affected by the severity of pruning, by the structure when the shoots were 1 year old, and probably by local competition among buds”
t0“almond trees”
Claim · model-written summary
Pruning related shoot structure changes can be modeled and predicted.
- Taxon
- almondPrunus dulcist0
- Outcome
- Changes in structure due to pruninge0
Not reportedComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Changes in structure due to pruning can be modelled and be predictable”
t0“almond trees”
The same questions in other papers
pruning · growth · Prunus dulcis (almond)Positive and negative results
2 in the opposite direction
- negative
- negative
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.