Abstract
Tests were conducted at the USDA Forest Service Nursery, Coeur d'Alene, Idaho to evaluate effectiveness of spring fumigation with dazomet to improve survival and performance of Douglas-fir and western white pine transplants. Spring fumigation greatly reduced populations of potentially pathogenic Fusarium and Pythium spp. Disease levels of container (plug+1) and bare root (2+1) Douglas-fir transplants were very low, regardless of soil fumigation. Fumigation reduced disease on bare root (2+1) white pine transplants, but did not improve survival of container (plug+1) white pine transplants. Seedling height growth during the first year after transplanting was significantly improved by soil fumigation. Fusarium oxysporum was commonly isolated from soil and roots of diseased bare root transplants. Fusarium proliferatum was commonly isolated from the roots of container transplants. Soil fumigation may not necessarily improve survival and performance of all types of conifer transplants in nurseries.
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Claims 8
Claim · model-written summary
Spring fumigation reduced potentially pathogenic Fusarium and Pythium populations.
- Taxon
- Douglas-fir
Pseudotsuga menziesiit0 - Treatment
- Spring fumigatione0
- Outcome
- populations of potentially pathogenic Fusarium and Pythium spp.e0
- Direction
- reducede0
Fusarium.jpg?width=60){kind=small}
PythiumNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Spring fumigation greatly reduced populations of potentially pathogenic Fusarium and Pythium spp.”
t0“Douglas-fir and western white pine transplants”
Claim · model-written summary
Disease levels of Douglas-fir transplants were very low regardless of fumigation.
- Taxon
- Douglas-firPseudotsuga menziesiie0
- Material
- container (plug+1) and bare root (2+1) Douglas-fir transplantse0
- Outcome
- Disease levelse0
- Qualifier
- regardless of soil fumigatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Disease levels of container (plug+1) and bare root (2+1) Douglas-fir transplants were very low, regardless of soil fumigation.”
Claim · model-written summary
Fumigation reduced disease in bare root white pine transplants.
- Taxon
- white pinee0
- Material
- bare root (2+1) white pine transplantse0
- Treatment
- Fumigatione0
- Outcome
- diseasee0
- Direction
- reducede0
Not reportedComparator
Verbatim
e0“Fumigation reduced disease on bare root (2+1) white pine transplants”
Claim · model-written summary
Fumigation did not improve survival of container white pine transplants.
- Taxon
- white pinee0
- Material
- container (plug+1) white pine transplantse0
- Treatment
- Fumigatione1
- Outcome
- survivale0
- Direction
- did not improvee0
Not reportedComparator
Verbatim
e0“did not improve survival of container (plug+1) white pine transplants”
e1“Fumigation reduced disease on bare root (2+1) white pine transplants”
Claim · model-written summary
Soil fumigation significantly improved first-year seedling height growth.
- Taxon
- Douglas-fir and western white pine
Pinus monticolaPseudotsuga menziesiit0 - Treatment
- soil fumigatione0
- Outcome
- Seedling height growthe0
- Direction
- improvede0
- Qualifier
- during the first year after transplantinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seedling height growth during the first year after transplanting was significantly improved by soil fumigation.”
t0“Douglas-fir and western white pine transplants”
Claim · model-written summary
Fusarium oxysporum was commonly isolated from soil and diseased bare root transplant roots.
- Taxon
- Douglas-fir and western white pinePinus monticolaPseudotsuga menziesiit0
- Interactor
- Fusarium oxysporum
_(Fusarium_oxysporum_f.sp._batatas)_1234227-PPT-Clemson_University.jpg?width=60)
Fusarium oxysporume0pathogen - Outcome
- Fusarium oxysporum was commonly isolated from soil and roots of diseased bare root transplantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_(Fusarium_oxysporum_f.sp._batatas)_1234227-PPT-Clemson_University.jpg?width=500)
Verbatim
e0“Fusarium oxysporum was commonly isolated from soil and roots of diseased bare root transplants.”
t0“Douglas-fir and western white pine transplants”
Claim · model-written summary
Fusarium proliferatum was commonly isolated from container transplant roots.
- Taxon
- Douglas-fir and western white pinePinus monticolaPseudotsuga menziesiit0
- Interactor
- Fusarium proliferatumFusarium proliferatume0pathogen
- Outcome
- Fusarium proliferatum was commonly isolated from the roots of container transplantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fusarium proliferatum was commonly isolated from the roots of container transplants.”
t0“Douglas-fir and western white pine transplants”
Claim · model-written summary
The authors caution that soil fumigation may not improve all conifer transplant types.
Verbatim
e0“Soil fumigation may not necessarily improve survival and performance of all types of conifer transplants in nurseries.”
The same questions in other papers
solarization · growth · Pseudotsuga menziesii (Douglas-fir)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.