Abstract
Charcoal rot caused by Macrophomina phaseolina (Mp) has become a major threat to the California strawberry industry. We examined the effect of growing ‘Summit 515’ wheat (wheat) as a pre-crop of strawberries with and without anaerobic soil disinfestation (ASD) on suppressing charcoal rot in strawberries. A series of pot experiments, replicated field trials on the Central Coast, and demonstration trials on commercial fields in the Southern Coast were conducted. Economic analysis using a partial budget was performed using data from the field trials. Growing wheat did not significantly reduce soil Mp populations, and growing and incorporating wheat failed to suppress charcoal rot in strawberries in a replicated field trial. In contrast, ASD applied within beds (bed-ASD) in a sandy loam demonstration trial and ASD applied on a flat ground (broadcast-ASD) in loamy sand replicated field trials suppressed charcoal rot in strawberries. However, the Mp populations in the soil were significantly reduced only in the demonstration trial. Potential mechanisms and cumulative Eh and cumulative soil temperature conditions required for those cases are discussed. In a clay loam demonstration trial, bed-ASD did not develop sufficient anaerobiosis and failed to suppress the disease because of large soil clods in the beds. A partial budget economic analysis indicated that broadcast-ASD may be cost-prohibitive, whereas the bed-ASD is more viable. Taken together, bed-ASD may be a viable option for suppressing charcoal rot in strawberries in sandy to loamy fields in the Southern Coast of California. Bed-ASD in fields with high clay content soils remains challenging.
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Claims 4
Claim · model-written summary
Growing and incorporating wheat failed to suppress strawberry charcoal rot.
- Taxon
- strawberries
_single2.jpg?width=60)
Fragaria ×ananassae0 - Treatment
- growing and incorporating wheate0
- Interactor
- Macrophomina phaseolina
Macrophomina phaseolinae1pathogen - Outcome
- charcoal rot in strawberriese0
- Direction
- failed to suppresse0
- Setting
- replicated field triale0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
e0“growing and incorporating wheat failed to suppress charcoal rot in strawberries in a replicated field trial”
e1“Macrophomina phaseolina (Mp)”
Claim · model-written summary
Bed ASD suppressed strawberry charcoal rot in a sandy loam demonstration trial.
- Taxon
- strawberriesFragaria ×ananassae0
- Treatment
- ASD applied within beds (bed-ASD)e0
- Interactor
- Macrophomina phaseolinaMacrophomina phaseolinae1pathogen
- Outcome
- charcoal rot in strawberriese0
- Direction
- suppressede0
- Setting
- sandy loam demonstration triale0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ASD applied within beds (bed-ASD) in a sandy loam demonstration trial and ASD applied on a flat ground (broadcast-ASD) in loamy sand replicated field trials suppressed charcoal rot in strawberries”
e1“Macrophomina phaseolina (Mp)”
Claim · model-written summary
Broadcast ASD suppressed strawberry charcoal rot in loamy sand field trials.
- Taxon
- strawberriesFragaria ×ananassae0
- Treatment
- ASD applied on a flat ground (broadcast-ASD)e0
- Interactor
- Macrophomina phaseolinaMacrophomina phaseolinae1pathogen
- Outcome
- charcoal rot in strawberriese0
- Direction
- suppressede0
- Setting
- loamy sand replicated field trialse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ASD applied within beds (bed-ASD) in a sandy loam demonstration trial and ASD applied on a flat ground (broadcast-ASD) in loamy sand replicated field trials suppressed charcoal rot in strawberries”
e1“Macrophomina phaseolina (Mp)”
Claim · model-written summary
The authors recommend bed ASD as a viable option for charcoal rot suppression in sandy to loamy Southern Coast fields.
- Taxon
- strawberriesFragaria ×ananassae0
- Interactor
- Macrophomina phaseolinaMacrophomina phaseolinae1pathogen
- Outcome
- bed-ASD may be a viable option for suppressing charcoal rote0
- Qualifier
- sandy to loamy fieldse0
- Setting
- Southern Coast of Californiae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“bed-ASD may be a viable option for suppressing charcoal rot in strawberries in sandy to loamy fields in the Southern Coast of California”
e1“Macrophomina phaseolina (Mp)”
The same questions in other papers
transplanting · Macrophomina phaseolina · Fragaria x ananassa (strawberry)Positive and negative results
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- negative
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solarization · Macrophomina phaseolina · Fragaria x ananassa (strawberry)Results agree
3 papers in the same direction as this paper
- positive
- 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.