Abstract
Abstract Florpyrauxifen-benzyl is a new herbicide under development in rice that will provide an alternative mode of action to control barnyardgrass. Multiple greenhouse experiments evaluated florpyrauxifen-benzyl efficacy on barnyardgrass accessions collected in rice fields across Arkansas, and to evaluate its efficacy on herbicide-resistant biotypes. In one experiment, florpyrauxifen-benzyl was applied at the labeled rate of 30 g ai ha −1 to 152 barnyardgrass accessions collected from 21 Arkansas counties. Florpyrauxifen-benzyl at 30 g ai ha −1 effectively controlled barnyardgrass and subsequently reduced plant height and aboveground biomass. In a dose-response experiment, susceptible-, acetolactate synthase (ALS)-, propanil-, and quinclorac-resistant barnyardgrass biotypes were subjected to nine rates of florpyrauxifen-benzyl ranging from 0 to 120 g ai ha −1 . The effective dose required to provide 90% control, plant height reduction, and biomass reduction of the susceptible and resistant biotypes fell below the anticipated labeled rate of 30 g ai ha −1 . Based on these results, quinclorac-resistant barnyardgrass as well as other resistant biotypes can be controlled with florpyrauxifen-benzyl at 30 g ai ha −1 . Overall, results from these studies indicate that florpyrauxifen-benzyl can be an effective tool for controlling susceptible and currently existing herbicide-resistant barnyardgrass biotypes in rice. Additionally, the unique auxin chemistry of florpyrauxifen-benzyl will introduce an alternative mechanism of action in rice weed control thus acting as an herbicide-resistance management tool.
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Claims 6
Claim · model-written summary
Florpyrauxifen-benzyl at 30 g ai ha −1 effectively controlled barnyardgrass in rice.
- Taxon
- rice
Oryza sativae1 - Treatment
- Florpyrauxifen-benzyl at 30 g ai ha −1e0
- Interactor
- barnyardgrass
Echinochloa crus-gallie0weed - Outcome
- controlled barnyardgrasse0
- Direction
- controllede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Florpyrauxifen-benzyl at 30 g ai ha −1 effectively controlled barnyardgrass and subsequently reduced plant height and aboveground biomass.”
e1“in rice fields across Arkansas”
Claim · model-written summary
Florpyrauxifen-benzyl at 30 g ai ha −1 reduced barnyardgrass height and aboveground biomass.
- Taxon
- riceOryza sativae1
- Treatment
- Florpyrauxifen-benzyl at 30 g ai ha −1e0
- Interactor
- barnyardgrassEchinochloa crus-gallie0weed
- Outcome
- plant height and aboveground biomasse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Florpyrauxifen-benzyl at 30 g ai ha −1 effectively controlled barnyardgrass and subsequently reduced plant height and aboveground biomass.”
e1“in rice fields across Arkansas”
Claim · model-written summary
The dose needed for 90% control and height and biomass reduction of susceptible biotypes was below 30 g ai ha −1.
- Taxon
- riceOryza sativae1
- Material
- susceptiblee0
- Treatment
- florpyrauxifen-benzyle2
- Interactor
- BarnyardgrassEchinochloa crus-gallit0weed
- Outcome
- 90% control, plant height reduction, and biomass reductione0
- Direction
- fell belowe0
- Comparator
- anticipated labeled rate of 30 g ai ha −1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effective dose required to provide 90% control, plant height reduction, and biomass reduction of the susceptible and resistant biotypes fell below the anticipated labeled rate of 30 g ai ha −1 .”
e1“in rice fields across Arkansas”
e2“florpyrauxifen-benzyl was applied”
t0“Barnyardgrass Accessions”
Claim · model-written summary
The dose needed for 90% control and height and biomass reduction of resistant biotypes was below 30 g ai ha −1.
- Taxon
- riceOryza sativae1
- Material
- resistant biotypese0
- Treatment
- florpyrauxifen-benzyle2
- Interactor
- BarnyardgrassEchinochloa crus-gallit0weed
- Outcome
- 90% control, plant height reduction, and biomass reductione0
- Direction
- fell belowe0
- Comparator
- anticipated labeled rate of 30 g ai ha −1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effective dose required to provide 90% control, plant height reduction, and biomass reduction of the susceptible and resistant biotypes fell below the anticipated labeled rate of 30 g ai ha −1 .”
e1“in rice fields across Arkansas”
e2“florpyrauxifen-benzyl was applied”
t0“Barnyardgrass Accessions”
Claim · model-written summary
The authors conclude that florpyrauxifen-benzyl can control quinclorac-resistant and other resistant barnyardgrass at 30 g ai ha −1.
- Taxon
- riceOryza sativae1
- Material
- quinclorac-resistant barnyardgrasse0
- Interactor
- barnyardgrassEchinochloa crus-gallie0weed
- Outcome
- controlled with florpyrauxifen-benzyl at 30 g ai ha −1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“quinclorac-resistant barnyardgrass as well as other resistant biotypes can be controlled with florpyrauxifen-benzyl at 30 g ai ha −1 .”
e1“in rice fields across Arkansas”
Claim · model-written summary
The authors propose florpyrauxifen-benzyl as an alternative mode of action for resistance management in rice.
- Taxon
- riceOryza sativae0
- Treatment
- florpyrauxifen-benzyle0
- Outcome
- herbicide-resistance management toole0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“florpyrauxifen-benzyl will introduce an alternative mechanism of action in rice weed control thus acting as an herbicide-resistance management tool.”
The same questions in other papers
florpyrauxifen-benzyl · Echinochloa crus-galli · Oryza sativa (rice)Positive and negative results
2 papers in the same direction as this paper · 1 reporting no difference from an alternative
- no effect
- 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.