Abstract
ABSTRACT In this work, two cultural production systems were compared [conventional (CO) and organic (OR)], and its effects in the guava trees (Psidium guajava) bacterial blight (Erwinia psidii) control. The experimental design was in radomized blocks, in split-split-plot arrangement, where it was measured the bacterial disease and the fruits production on the 2005/06, 2006/07 and 2007/08 harvests. Four pruning seasons effects were evaluated on the harvests (September, December, March and June) in both production systems. Such systems were constituted of: OR – treatment with bioactive compound (BC), liquid BC and dead coverage, and; CO – chemical fertilization, fungicide and herbicide. In 2007/08, the area under the disease progress curve (AUDPC) of all the treatments in the OR system was lower (~54-107) than the CO one(~233-298). In the 2007/08 harvest the number of fruits for each plant for all the OR treatments was higher (~146-204) than the CO ones (~57-103). In all the harvests, considering all the treatments within each system, there was a significantly lower AUDPC (~93-184) and higher fruits production (~158-188) in the OR one than the CO one (AUDPC: ~208-476; fruits ~18-104). The pruning induced a higher AUDPC and lower fruits production in both production sytems.
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Claims 6
Claim · model-written summary
Organic treatments had lower 2007/08 disease progress curve values than conventional treatments.
- Taxon
- guava trees
Psidium guajavat0 - Treatment
- OR systeme0
- Outcome
- area under the disease progress curve (AUDPC)e0
- Direction
- lowere0
- Value
- ~54-107e0
- Qualifier
- ~233-298e0
- Comparator
- CO onee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In 2007/08, the area under the disease progress curve (AUDPC) of all the treatments in the OR system was lower (~54-107) than the CO one(~233-298)”
t0“guava trees (Psidium guajava)”
Claim · model-written summary
Organic treatments produced more fruits per plant than conventional treatments in 2007/08.
- Taxon
- guava treesPsidium guajavat0
- Treatment
- OR treatmentse0
- Outcome
- number of fruits for each plante0
- Direction
- highere0
- Value
- ~146-204e0
- Qualifier
- ~57-103e0
- Comparator
- CO onese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the 2007/08 harvest the number of fruits for each plant for all the OR treatments was higher (~146-204) than the CO ones (~57-103)”
t0“guava trees (Psidium guajava)”
Claim · model-written summary
Across harvests, organic production had significantly lower blight AUDPC than conventional production.
- Taxon
- guava treesPsidium guajavat0
- Treatment
- OR onee0
- Outcome
- AUDPCe0
- Direction
- lowere0
- Value
- ~93-184e0
- Qualifier
- ~208-476e0
- Comparator
- CO onee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In all the harvests, considering all the treatments within each system, there was a significantly lower AUDPC (~93-184) and higher fruits production (~158-188) in the OR one than the CO one (AUDPC: ~208-476; fruits ~18-104)”
t0“guava trees (Psidium guajava)”
Claim · model-written summary
Across harvests, organic production had higher fruit production than conventional production.
- Taxon
- guava treesPsidium guajavat0
- Treatment
- OR onee0
- Outcome
- fruits productione0
- Direction
- highere0
- Value
- ~158-188e0
- Qualifier
- ~18-104e0
- Comparator
- CO onee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In all the harvests, considering all the treatments within each system, there was a significantly lower AUDPC (~93-184) and higher fruits production (~158-188) in the OR one than the CO one (AUDPC: ~208-476; fruits ~18-104)”
t0“guava trees (Psidium guajava)”
Claim · model-written summary
Pruning increased bacterial blight AUDPC in both production systems.
- Taxon
- guava treesPsidium guajavat0
- Treatment
- pruninge0
- Outcome
- AUDPCe0
- Direction
- highere0
- Qualifier
- both production sytemse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The pruning induced a higher AUDPC and lower fruits production in both production sytems”
t0“guava trees (Psidium guajava)”
Claim · model-written summary
Pruning reduced fruit production in both production systems.
- Taxon
- guava treesPsidium guajavat0
- Treatment
- pruninge0
- Outcome
- fruits productione0
- Direction
- lowere0
- Qualifier
- both production sytemse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The pruning induced a higher AUDPC and lower fruits production in both production sytems”
t0“guava trees (Psidium guajava)”
The same questions in other papers
pruning · yield · Psidium guajava (guava)Results differ
1 paper in the same direction as this paper · 68 in the opposite direction
- positive
- positive
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cultivation system · yield · Psidium guajava (guava)Results agree
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- 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.