Abstract
Abstract Varying levels of sensitivity to florpyrauxifen‐benzyl and benzobicyclon applications among rice ( Oryza sativa L.) cultivars have been observed. The safe use of florpyrauxifen‐benzyl and benzobicyclon in the same herbicide program could provide broad‐spectrum weed control and delay resistance in weed species. Two experiments were conducted in 2019 and 2020 near Stuttgart, AR, to test cultivars’ sensitivity to multiple rates of florpyrauxifen‐benzyl and applications of florpyrauxifen‐benzyl followed by benzobicyclon. The first experiment was designed to determine the sensitivity of the rice cultivars ‘XP753’, ‘CL XL745’, ‘Gemini 214CL’, ‘Titan’, and ‘Diamond’ to applications of florpyrauxifen‐benzyl at 0.03 and 0.06 lb acid equivalent (a.e.) acre –1 and sequential applications of 0.03 lb a.e. acre –1 . The second experiment determined the effect of benzobicyclon applied post‐flood on rice injury following an application of florpyrauxifen‐benzyl on the same cultivars used in the previous experiment. A rough rice yield loss of 17% was observed for sequential applications of florpyrauxifen‐benzyl at 0.03 lb a.e. acre –1 to XP753. Single applications of florpyrauxifen‐benzyl at 0.06 lb a.e. acre –1 caused a 45% groundcover reduction in XP753, whereas sequential applications of 0.03 lb a.e. acre –1 reduced groundcover on all hybrid cultivars tested. Applications of benzobicyclon alone never injured rice by more than 8%, and applying benzobicyclon after florpyrauxifen‐benzyl did not increase the observed injury over florpyrauxifen‐benzyl alone. Single applications of florpyrauxifen‐benzyl followed by benzobicyclon can be used in an herbicide program to control weeds without the risk of greater injury than is typically caused by florpyrauxifen‐benzyl alone.
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Claims 6
Claim · model-written summary
A sequential florpyrauxifen-benzyl program at 0.03 lb a.e. acre-1 to XP753 caused a 17% rough rice yield loss.
- Taxon
- rice
Oryza sativae1 - Material
- XP753e1
- Treatment
- sequential applications of florpyrauxifen‐benzyl at 0.03 lb a.e. acre –1e1
- Outcome
- rough rice yield losse1
- Direction
- decreaseinferrede1
- Value
- 17%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“A rough rice yield loss of 17% was observed for sequential applications of florpyrauxifen‐benzyl at 0.03 lb a.e. acre –1 to XP753”
Claim · model-written summary
A single florpyrauxifen-benzyl application at 0.06 lb a.e. acre-1 caused a 45% groundcover reduction in XP753 rice.
- Taxon
- RiceOryza sativat0
- Material
- XP753e1
- Treatment
- Single applications of florpyrauxifen‐benzyl at 0.06 lb a.e. acre –1e1
- Outcome
- groundcovere1
- Direction
- reductione1
- Value
- 45%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Single applications of florpyrauxifen‐benzyl at 0.06 lb a.e. acre –1 caused a 45% groundcover reduction in XP753”
t0“Rice tolerance”
Claim · model-written summary
Sequential florpyrauxifen-benzyl applications at 0.03 lb a.e. acre-1 reduced groundcover on all hybrid rice cultivars tested.
- Taxon
- RiceOryza sativat0
- Material
- hybrid cultivarse1
- Treatment
- sequential applications of 0.03 lb a.e. acre –1e1
- Outcome
- groundcovere1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“sequential applications of 0.03 lb a.e. acre –1 reduced groundcover on all hybrid cultivars tested”
t0“Rice tolerance”
Claim · model-written summary
Benzobicyclon alone never injured rice by more than 8%.
- Taxon
- riceOryza sativae1
- Treatment
- Applications of benzobicyclon alonee1
- Outcome
- injured ricee1
- Direction
- never injurede1
- Value
- more than 8%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Applications of benzobicyclon alone never injured rice by more than 8%”
Claim · model-written summary
Applying benzobicyclon after florpyrauxifen-benzyl did not increase rice injury over florpyrauxifen-benzyl alone.
- Taxon
- RiceOryza sativat0
- Treatment
- applying benzobicyclon after florpyrauxifen‐benzyle1
- Outcome
- observed injurye1
- Direction
- did not increasee1
- Comparator
- florpyrauxifen‐benzyl alonee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“applying benzobicyclon after florpyrauxifen‐benzyl did not increase the observed injury over florpyrauxifen‐benzyl alone”
t0“Rice tolerance”
Claim · model-written summary
The authors recommend single florpyrauxifen-benzyl applications followed by benzobicyclon in a weed control program, since they carry no greater injury than florpyrauxifen-benzyl alone.
- Taxon
- RiceOryza sativat0
- Treatment
- Single applications of florpyrauxifen‐benzyl followed by benzobicyclone1
- Outcome
- used in an herbicide program to control weedse1
- Qualifier
- without the risk of greater injury than is typically caused by florpyrauxifen‐benzyl alonee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Single applications of florpyrauxifen‐benzyl followed by benzobicyclon can be used in an herbicide program to control weeds without the risk of greater injury than is typically caused by florpyrauxifen‐benzyl alone”
t0“Rice tolerance”
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