Abstract
Abstract Four‐year‐old 'Aki Fuji' apple trees in their second leaf of fruiting were used to study the influence of paclobutrazol on photosynthesis rate (Pn) and the partitioning of dry matter in the different parts of the tree. It was found that the Pn of paclobutrazol‐treated trees was significantly higher than the untreated check trees. This is partially accounted for by the higher light intensity in the canopy of the paclobutrazol‐treated trees. Production efficiency of the paclobutrazol‐treated trees was 2.6 times higher than that of the untreated check trees. Paclobutrazol significantly changed the partitioning pattern of dry matter in the different parts of the tree. A much higher percentage of total dry matter was distributed to the fruit. However, a higher percentage of dry matter was found in the root of the paclobutrazol‐treated trees than in the untreated trees, the difference being mainly in the lateral and fibrous roots. Total dry matter accumulated per m2 of occupied land of the paclobutrazol‐treated tree was 4% greater than that of the untreated check trees, whereas total dry matter accumulated per kg of leaves was essentially the same in both trees. Whether calculated on the basis of per m2 of occupied land or per kg of leaves, the dry matter distributed into the fruit and into the root was considerably greater in the paclobutrazol‐treated trees than the untreated trees.
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Claims 9
Claim · model-written summary
Paclobutrazol-treated apple trees had significantly higher photosynthesis rate (Pn) than untreated check trees.
- Taxon
- apple trees
Malus domesticae0 - Material
- Aki Fujie0
- Organ / stage
- second leaf of fruitinge0
- Treatment
- paclobutrazole1
- Outcome
- photosynthesis rate (Pn)e0
- Direction
- highere1
- Comparator
- untreated check treese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Four‐year‐old 'Aki Fuji' apple trees in their second leaf of fruiting were used to study the influence of paclobutrazol on photosynthesis rate (Pn)”
e1“the Pn of paclobutrazol‐treated trees was significantly higher than the untreated check trees”
Claim · model-written summary
The higher photosynthesis of paclobutrazol-treated apple trees is partially accounted for by higher light intensity in the canopy.
- Taxon
- apple treesMalus domesticae0
- Outcome
- photosynthesis rate (Pn)e0
- Qualifier
- partially accounted for by the higher light intensity in the canopye2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Four‐year‐old 'Aki Fuji' apple trees in their second leaf of fruiting were used to study the influence of paclobutrazol on photosynthesis rate (Pn)”
e2“This is partially accounted for by the higher light intensity in the canopy of the paclobutrazol‐treated trees”
Claim · model-written summary
Production efficiency of paclobutrazol-treated apple trees was 2.6 times higher than that of untreated check trees.
- Taxon
- apple treesMalus domesticae0
- Treatment
- paclobutrazole3
- Outcome
- Production efficiencye3
- Direction
- highere3
- Value
- 2.6 timese3
- Comparator
- untreated check treese3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Four‐year‐old 'Aki Fuji' apple trees in their second leaf of fruiting were used to study the influence of paclobutrazol on photosynthesis rate (Pn)”
e3“Production efficiency of the paclobutrazol‐treated trees was 2.6 times higher than that of the untreated check trees”
Claim · model-written summary
Paclobutrazol significantly changed the partitioning pattern of dry matter among the parts of apple trees.
- Taxon
- apple treesMalus domesticae0
- Treatment
- Paclobutrazole4
- Outcome
- partitioning pattern of dry mattere4
- Direction
- changede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Four‐year‐old 'Aki Fuji' apple trees in their second leaf of fruiting were used to study the influence of paclobutrazol on photosynthesis rate (Pn)”
e4“Paclobutrazol significantly changed the partitioning pattern of dry matter in the different parts of the tree”
Claim · model-written summary
Paclobutrazol-treated apple trees distributed a much higher percentage of total dry matter to the fruit.
- Taxon
- apple treesMalus domesticae0
- Organ / stage
- fruite5
- Treatment
- Paclobutrazole4
- Outcome
- percentage of total dry mattere5
- Direction
- highere5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Four‐year‐old 'Aki Fuji' apple trees in their second leaf of fruiting were used to study the influence of paclobutrazol on photosynthesis rate (Pn)”
e4“Paclobutrazol significantly changed the partitioning pattern of dry matter in the different parts of the tree”
e5“A much higher percentage of total dry matter was distributed to the fruit”
Claim · model-written summary
Paclobutrazol-treated apple trees had a higher percentage of dry matter in the root than untreated trees, mainly in the lateral and fibrous roots.
- Taxon
- apple treesMalus domesticae0
- Organ / stage
- roote6
- Treatment
- paclobutrazole6
- Outcome
- percentage of dry mattere6
- Direction
- highere6
- Qualifier
- the difference being mainly in the lateral and fibrous rootse6
- Comparator
- untreated treese6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Four‐year‐old 'Aki Fuji' apple trees in their second leaf of fruiting were used to study the influence of paclobutrazol on photosynthesis rate (Pn)”
e6“a higher percentage of dry matter was found in the root of the paclobutrazol‐treated trees than in the untreated trees, the difference being mainly in the lateral and fibrous roots”
Claim · model-written summary
Total dry matter accumulated per m2 of occupied land was 4% greater in paclobutrazol-treated apple trees than in untreated check trees.
- Taxon
- apple treesMalus domesticae0
- Treatment
- paclobutrazole7
- Outcome
- Total dry matter accumulated per m2 of occupied lande7
- Direction
- greatere7
- Value
- 4%e7
- Comparator
- untreated check treese7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Four‐year‐old 'Aki Fuji' apple trees in their second leaf of fruiting were used to study the influence of paclobutrazol on photosynthesis rate (Pn)”
e7“Total dry matter accumulated per m2 of occupied land of the paclobutrazol‐treated tree was 4% greater than that of the untreated check trees”
Claim · model-written summary
Total dry matter accumulated per kg of leaves was essentially the same in paclobutrazol-treated and untreated apple trees.
- Taxon
- apple treesMalus domesticae0
- Treatment
- paclobutrazole7
- Outcome
- total dry matter accumulated per kg of leavese1
- Direction
- essentially the samee1
- Comparator
- untreated check treese7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Four‐year‐old 'Aki Fuji' apple trees in their second leaf of fruiting were used to study the influence of paclobutrazol on photosynthesis rate (Pn)”
e7“Total dry matter accumulated per m2 of occupied land of the paclobutrazol‐treated tree was 4% greater than that of the untreated check trees”
e1“total dry matter accumulated per kg of leaves was essentially the same in both trees”
Claim · model-written summary
Dry matter distributed into the fruit and the root was considerably greater in paclobutrazol-treated trees than untreated trees, on both a per m2 and a per kg of leaves basis.
- Taxon
- apple treesMalus domesticae0
- Treatment
- paclobutrazole2
- Outcome
- dry matter distributed into the fruit and into the roote2
- Direction
- considerably greatere2
- Comparator
- untreated treese2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Four‐year‐old 'Aki Fuji' apple trees in their second leaf of fruiting were used to study the influence of paclobutrazol on photosynthesis rate (Pn)”
e2“Whether calculated on the basis of per m2 of occupied land or per kg of leaves, the dry matter distributed into the fruit and into the root was considerably greater in the paclobutrazol‐treated trees than the untreated trees”
The same questions in other papers
paclobutrazol · yield · Malus domestica (apple)Results differ
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- negative
- negative
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12 papers in the same direction as this paper · 8 in the opposite direction
- negative
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See all 21 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.