Abstract
The interaction between eight herbicides and the susceptibility of processing peas ( Pisum sativum L.) to common root rot was studied under field, greenhouse, and laboratory conditions. In the field, methyl bromide fumigant was applied in a split‐plot design in order to provide pathogen‐free reference treatments. None of the following herbicides increased susceptibility to common root rot: atrazine [2‐chloro‐4‐(ethylamino)‐6‐(isopropylamino)‐ s ‐triazine], cyanazine {2‐[4‐chloro‐6‐(ethylamino)‐ s ‐triazin‐2‐yl]amino‐2‐methylpropionitrile}, dalapon (2, 2‐ dichloropropionic acid), dinoseb (2‐ sec butyl‐4, 6‐dinitrophenol), EPTC ( S ‐ethyl dipropylthiocarbamate), MCPB {4‐[(4‐chloro‐o‐toly)oxy]butyric acid}, propachlor (2‐ chloro‐ N ‐isopropylacetanilide). However, trifluralin (α, α,α‐trifuoro‐2, 6‐dinitro‐ N , N ‐dipropyl‐p‐toluidine) appeared to reduce the disease injury. When peas were planted in pathogen infested soil in 1973, trifluralin at 0.56 kg/ha followed by 5.6 kg/ha of propachlor increased shelled pea yields 29% above that of controls. Higher trifluralin rates did not improve yields, but did reduce root rot symptoms. Methyl bromide fumigation increased pea stands, but reduced yield of shelled peas. In the greenhouse trifluralin at rates of 1.12 kg/ha or more, resulted in nearly complete prevention of root rot in peas. The 0.56 kg/ha rate provided partial control. In culture, trifluralin at 10 mg or more per liter of medium, reduced mycelial growth and zoospore production of Aphanomyces euteiches , but had no effect on the fungus at rates similar to those used in the field applications.
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Claims 11
Claim · model-written summary
Seven tested herbicides did not increase processing pea susceptibility to common root rot.
- Taxon
- processing peas ( Pisum sativum L.)
Lathyrus oleraceust0 - Treatment
- atrazinee0
- Outcome
- susceptibility to common root rote0
- Direction
- Nonee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“None of the following herbicides increased susceptibility to common root rot: atrazine [2‐chloro‐4‐(ethylamino)‐6‐(isopropylamino)‐ s ‐triazine], cyanazine {2‐[4‐chloro‐6‐(ethylamino)‐ s ‐triazin‐2‐yl]amino‐2‐methylpropionitrile}, dalapon (2, 2‐ dichloropropionic acid), dinoseb (2‐ sec butyl‐4, 6‐dinitrophenol), EPTC ( S ‐ethyl dipropylthiocarbamate), MCPB {4‐[(4‐chloro‐o‐toly)oxy]butyric acid}, propachlor (2‐ chloro‐ N ‐isopropylacetanilide).”
t0“processing peas ( Pisum sativum L.)”
Claim · model-written summary
Trifluralin appeared to reduce pea root rot injury.
- Taxon
- processing peas ( Pisum sativum L.)Lathyrus oleraceust0
- Treatment
- trifluraline0
- Outcome
- disease injurye0
- Direction
- reducee0
Not reportedInteractorComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“trifluralin (α, α,α‐trifuoro‐2, 6‐dinitro‐ N , N ‐dipropyl‐p‐toluidine) appeared to reduce the disease injury.”
t0“processing peas ( Pisum sativum L.)”
Claim · model-written summary
Trifluralin at 0.56 kg/ha followed by propachlor at 5.6 kg/ha increased shelled pea yield by 29% over controls in pathogen infested soil.
- Taxon
- peasLathyrus oleraceuse0
- Treatment
- trifluralin at 0.56 kg/ha followed by 5.6 kg/ha of propachlore0
- Outcome
- shelled pea yieldse0
- Direction
- increasede0
- Value
- 29%e0
- Qualifier
- pathogen infested soil in 1973e0
- Comparator
- controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When peas were planted in pathogen infested soil in 1973, trifluralin at 0.56 kg/ha followed by 5.6 kg/ha of propachlor increased shelled pea yields 29% above that of controls.”
Claim · model-written summary
Higher trifluralin rates did not improve shelled pea yields.
Not reportedTaxonComparator
Verbatim
e0“Higher trifluralin rates did not improve yields”
Claim · model-written summary
Higher trifluralin rates reduced pea root rot symptoms.
Not reportedTaxonComparator
Verbatim
e0“Higher trifluralin rates did not improve yields, but did reduce root rot symptoms.”
Claim · model-written summary
Methyl bromide fumigation increased pea stands.
- Taxon
- peaLathyrus oleraceuse0
- Treatment
- Methyl bromide fumigatione0
- Outcome
- pea standse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Methyl bromide fumigation increased pea stands, but reduced yield of shelled peas.”
Claim · model-written summary
Methyl bromide fumigation reduced shelled pea yield.
- Taxon
- peasLathyrus oleraceuse0
- Treatment
- Methyl bromide fumigatione0
- Outcome
- yield of shelled pease0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Methyl bromide fumigation increased pea stands, but reduced yield of shelled peas.”
Claim · model-written summary
In a greenhouse, trifluralin at 1.12 kg/ha or more nearly completely prevented root rot in peas.
- Taxon
- peasLathyrus oleraceuse0
- Treatment
- trifluralin at rates of 1.12 kg/ha or moree0
- Outcome
- root rote0
- Direction
- preventione0
- Setting
- greenhousee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the greenhouse trifluralin at rates of 1.12 kg/ha or more, resulted in nearly complete prevention of root rot in peas.”
Claim · model-written summary
The 0.56 kg/ha trifluralin rate provided partial root rot control in greenhouse peas.
- Taxon
- peasLathyrus oleraceuse1
- Treatment
- 0.56 kg/ha ratee0
- Outcome
- controle0
- Direction
- partial controle0
- Setting
- greenhousee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 0.56 kg/ha rate provided partial control.”
e1“In the greenhouse trifluralin at rates of 1.12 kg/ha or more, resulted in nearly complete prevention of root rot in peas.”
Claim · model-written summary
Trifluralin at 10 mg or more per liter of culture medium reduced Aphanomyces euteiches mycelial growth and zoospore production.
- Treatment
- trifluralin at 10 mg or more per liter of mediume0
- Interactor
- Aphanomyces euteichesAphanomyces euteichese0pathogen
- Outcome
- mycelial growth and zoospore production of Aphanomyces euteichese0
- Direction
- reducede0
- Setting
- culturee0
Not reportedTaxon
Verbatim
e0“In culture, trifluralin at 10 mg or more per liter of medium, reduced mycelial growth and zoospore production of Aphanomyces euteiches”
Claim · model-written summary
At rates similar to field applications, trifluralin had no effect on Aphanomyces euteiches in culture.
- Treatment
- rates similar to those used in the field applicationse0
- Interactor
- Aphanomyces euteichesAphanomyces euteichese1pathogen
- Outcome
- the funguse0
- Direction
- no effecte0
Not reportedTaxon
Verbatim
e0“but had no effect on the fungus at rates similar to those used in the field applications.”
e1“Aphanomyces euteiches”
The same questions in other papers
trifluralin · yield · Lathyrus oleraceus (pea)Results differ
2 papers in the same direction as this paper · 4 in the opposite direction
- negative
- positive
- negative
3 papers more in this group
See all 7 papers →trifluralin · disease · Lathyrus oleraceus (pea)Positive and negative results
1 in the opposite direction
- no effect
trifluralin · crop injury · Lathyrus oleraceus (pea)Positive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction
- negative
- negative
- positive
bromomethane · yield · Lathyrus oleraceus (pea)Results agree
1 paper in the same direction as this paper
- no effect
solarization · yield · Lathyrus oleraceus (pea)Results agree
3 papers in the same direction as this paper
- no effect
- no effect
- no effect
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.