Abstract
Abstract Young peach trees 1) trained to a single shoot or 2) allowed to branch, were pruned by removing 50% of current growth at either or both of 2 summer dates. Another group of trees had 0%, 25%, 50%, and 75% shoot growth removed by pruning in midseason. Net photosynthesis (Pn) and transpiration (Tr) were increased within 3 days after pruning at either date. Plants pruned twice at 30-day intervals had a 2nd cycle of increased Pn and Tr, with rates returning to levels of unpruned controls within 24 days. Distribution of water soluble carbohydrates in various plant tissues was not altered by pruning. Pruning at 60 days reduced root starch, whereas pruning again at 90 days increased total root carbohydrate content. Pruning early in the season increased lateral shoot formation, and terminal bud formation was delayed by pruning. Plant dry weight was reduced by all pruning treatments, with delayed pruning and increasing pruning severity resulting in greatest reductions. Distribution of dry weight was not altered substantially by pruning, and a balance of growth was maintained between different plant parts.
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Claims 9
Claim · model-written summary
Pruning increased net photosynthesis and transpiration within three days.
- Taxon
- Peach Tree
Prunus persicat0 - Treatment
- pruninge0
- Outcome
- Net photosynthesis (Pn) and transpiration (Tr)e0
- Direction
- increasede0
- Qualifier
- within 3 dayse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Net photosynthesis (Pn) and transpiration (Tr) were increased within 3 days after pruning at either date”
t0“Peach Tree”
Claim · model-written summary
Twice-pruned plants showed a second rise in photosynthesis and transpiration, then returned to unpruned control levels within 24 days.
- Taxon
- Peach TreePrunus persicat0
- Treatment
- pruned twice at 30-day intervalse0
- Outcome
- Pn and Tre0
- Direction
- increasede0
- Qualifier
- within 24 dayse0
- Comparator
- unpruned controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plants pruned twice at 30-day intervals had a 2nd cycle of increased Pn and Tr, with rates returning to levels of unpruned controls within 24 days”
t0“Peach Tree”
Claim · model-written summary
Pruning did not alter water soluble carbohydrate distribution across tissues.
- Taxon
- Peach TreePrunus persicat0
- Treatment
- pruninge0
- Outcome
- Distribution of water soluble carbohydrates in various plant tissuese0
- Direction
- not alterede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Distribution of water soluble carbohydrates in various plant tissues was not altered by pruning”
t0“Peach Tree”
Claim · model-written summary
Pruning at 60 days reduced root starch.
- Taxon
- Peach TreePrunus persicat0
- Treatment
- Pruning at 60 dayse0
- Outcome
- root starche0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pruning at 60 days reduced root starch”
t0“Peach Tree”
Claim · model-written summary
A second pruning at 90 days increased total root carbohydrate content.
- Taxon
- Peach TreePrunus persicat0
- Treatment
- pruning again at 90 dayse0
- Outcome
- total root carbohydrate contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pruning again at 90 days increased total root carbohydrate content”
t0“Peach Tree”
Claim · model-written summary
Early pruning increased lateral shoot formation.
- Taxon
- Peach TreePrunus persicat0
- Treatment
- Pruning early in the seasone0
- Outcome
- lateral shoot formatione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pruning early in the season increased lateral shoot formation”
t0“Peach Tree”
Claim · model-written summary
Pruning delayed terminal bud formation.
- Taxon
- Peach TreePrunus persicat0
- Treatment
- pruninge0
- Outcome
- terminal bud formatione0
- Direction
- delayede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“terminal bud formation was delayed by pruning”
t0“Peach Tree”
Claim · model-written summary
All pruning treatments reduced plant dry weight, especially later and more severe pruning.
- Taxon
- Peach TreePrunus persicat0
- Treatment
- all pruning treatmentse0
- Outcome
- Plant dry weighte0
- Direction
- reducede0
- Qualifier
- delayed pruning and increasing pruning severity resulting in greatest reductionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plant dry weight was reduced by all pruning treatments, with delayed pruning and increasing pruning severity resulting in greatest reductions”
t0“Peach Tree”
Claim · model-written summary
Pruning did not substantially alter dry weight distribution among plant parts.
- Taxon
- Peach TreePrunus persicat0
- Treatment
- pruninge0
- Outcome
- Distribution of dry weighte0
- Direction
- not altered substantiallye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Distribution of dry weight was not altered substantially by pruning, and a balance of growth was maintained between different plant parts”
t0“Peach Tree”
The same questions in other papers
pruning · growth · Prunus persica (peach)Results differ
21 papers in the same direction as this paper · 42 in the opposite direction
- positive
- positive
- negative
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See all 64 papers →pruning · quality: sugar starch · Prunus persica (peach)Positive and negative results
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- no effect
- no effect
- no effect
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See all 28 papers →pruning · physiology: photosynthesis · Prunus persica (peach)Results agree
2 papers in the same direction as this paper
- positive
- positive
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.