Abstract
Abstract A field study was conducted in 2015 and 2016 at the H. Rouse Caffey Rice Research Station near Crowley, Louisiana, to evaluate the interactions of quizalofop and a mixture of propanil plus thiobencarb applied sequentially or mixed to control weedy rice and barnyardgrass. Visual weed control evaluations occurred at 14, 28, and 42 d after treatment (DAT). Quizalofop was applied at 120 g ai ha −1 at 7, 3, and 1 d before and after propanil plus thiobencarb were each applied at 3,360 g ai ha −1 . In addition, quizalofop was applied alone and in a mixture with propanil plus thiobencarb at day 0. Control of red rice ‘CL-111’ and ‘CLXL-745’ was greater than 91% when quizalofop was applied alone at day 0, similar to control for quizalofop applied 7, 3, and 1 d prior to propanil plus thiobencarb at all evaluation dates. Control of the same weeds treated with quizalofop plus propanil plus thiobencarb applied in a mixture at day 0 was 70% to 76% at each evaluation date, similar to quizalofop applied 1 or 3 d after propanil plus thiobencarb. A similar trend in control of barnyardgrass by 88% to 97% occurred when quizalofop was applied alone and by 48% to 53% at 14, 28, and 42 DAT when the mixture was used. ‘PVL01’ rough rice yield was 4,060 kg ha −1 when treated with quizalofop alone; however, yield was reduced to 3,180 kg ha −1 when it was treated with quizalofop mixed with propanil plus thiobencarb at day 0, similar to PVL01 rice treated with quizalofop 1 or 3 d following the propanil plus thiobencarb application.
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Claims 6
Claim · model-written summary
Quizalofop alone controlled red rice CL-111 and CLXL-745 by over 91%.
- Taxon
- rice
Oryza sativat0 - Treatment
- quizalofop was applied alone at day 0e0
- Interactor
- red ricee0weed
- Outcome
- Control of red ricee0
- Direction
- greatere0
- Value
- greater than 91%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Control of red rice ‘CL-111’ and ‘CLXL-745’ was greater than 91% when quizalofop was applied alone at day 0”
t0“rice”
Claim · model-written summary
The day 0 mixture controlled red rice by 70% to 76%.
- Taxon
- riceOryza sativat0
- Treatment
- quizalofop plus propanil plus thiobencarb applied in a mixture at day 0e0
- Outcome
- Control of the same weedse0
- Value
- 70% to 76%e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Control of the same weeds treated with quizalofop plus propanil plus thiobencarb applied in a mixture at day 0 was 70% to 76% at each evaluation date”
t0“rice”
Claim · model-written summary
Quizalofop alone controlled barnyardgrass by 88% to 97%.
- Taxon
- riceOryza sativat0
- Treatment
- quizalofop was applied alonee0
- Interactor
- barnyardgrass
Echinochloa crus-gallie0weed - Outcome
- control of barnyardgrasse0
- Value
- 88% to 97%e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“control of barnyardgrass by 88% to 97% occurred when quizalofop was applied alone”
t0“rice”
Claim · model-written summary
The mixture controlled barnyardgrass by 48% to 53%.
- Taxon
- riceOryza sativat0
- Treatment
- the mixturee0
- Value
- 48% to 53%e0
Not reportedComparatorOutcomeDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“by 48% to 53% at 14, 28, and 42 DAT when the mixture was used”
t0“rice”
Claim · model-written summary
PVL01 yield was 4,060 kg ha −1 with quizalofop alone.
- Taxon
- riceOryza sativae0
- Material
- PVL01e0
- Treatment
- quizalofop alonee0
- Outcome
- rough rice yielde0
- Value
- 4,060 kg ha −1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“‘PVL01’ rough rice yield was 4,060 kg ha −1 when treated with quizalofop alone”
Claim · model-written summary
PVL01 yield was reduced to 3,180 kg ha −1 with the day 0 mixture.
- Taxon
- riceOryza sativat0
- Treatment
- quizalofop mixed with propanil plus thiobencarb at day 0e0
- Outcome
- yielde0
- Direction
- reducede0
- Value
- 3,180 kg ha −1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“yield was reduced to 3,180 kg ha −1 when it was treated with quizalofop mixed with propanil plus thiobencarb at day 0”
t0“rice”
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