Abstract
Abstract A field study was conducted in 2017 and 2018 at the Louisiana State University Agricultural Center H. Rouse Caffey Rice Research Station near Crowley, LA, to evaluate the impact of reduced rates of halosulfuron on quizalofop activity in Louisiana rice production. Halosulfuron and a prepackaged mixture of halosulfuron plus thifensulfuron were evaluated at 0, 17, 35, or 53 g ai ha −1 and 34 or 53 g ai ha −1 , respectively, in a mixture with quizalofop at 120 g ai ha −1 . Control of barnyardgrass, red rice, and two non-acetyl-CoA carboxylase resistant rice lines, CL-111 and CLXL-745, were recorded at 14 and 28 d after treatment (DAT). The red rice, CL-111, and CLXL-745 represented a weedy rice population. Across all species evaluated at 14 DAT, all mixtures containing halosulfuron and halosulfuron plus thifensulfuron resulted in antagonism with an observed control of 79% to 90%, compared with an expected control of 96% to 99%. At 28 DAT, all mixtures containing halosulfuron resulted in neutral interactions for barnyardgrass control. Quizalofop mixed with halosulfuron plus thifensulfuron at the lower rate of 34 g ha −1 was able to overcome the antagonism compared with the higher rate of 53 g ha −1 for barnyardgrass control at 28 DAT. Both the high and the low rate of halosulfuron plus thifensulfuron resulted in antagonistic interaction for red rice, CL-111, and CLXL-745 control at 28 DAT. This research suggests that mixing quizalofop with halosulfuron plus thifensulfuron should be avoided, especially at the higher rate of 53 g ha −1 .
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 6
Claim · model-written summary
Halosulfuron mixtures antagonized weed control at 14 DAT, with observed control of 79% to 90% versus expected 96% to 99%.
- Taxon
- rice
Oryza sativat0 - Treatment
- mixtures containing halosulfurone0
- Outcome
- observed controle0
- Direction
- antagonisme0
- Value
- 79% to 90%e0
- Qualifier
- 96% to 99%e0
- Comparator
- expected controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Across all species evaluated at 14 DAT, all mixtures containing halosulfuron and halosulfuron plus thifensulfuron resulted in antagonism with an observed control of 79% to 90%, compared with an expected control of 96% to 99%.”
t0“Louisiana rice production”
Claim · model-written summary
Halosulfuron plus thifensulfuron mixtures antagonized control at 14 DAT.
- Taxon
- riceOryza sativat0
- Treatment
- halosulfuron plus thifensulfurone0
- Outcome
- observed controle0
- Direction
- antagonisme0
- Value
- 79% to 90%e0
- Comparator
- expected controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Across all species evaluated at 14 DAT, all mixtures containing halosulfuron and halosulfuron plus thifensulfuron resulted in antagonism with an observed control of 79% to 90%, compared with an expected control of 96% to 99%.”
t0“Louisiana rice production”
Claim · model-written summary
Halosulfuron mixtures showed neutral interaction for barnyardgrass control at 28 DAT.
- Taxon
- riceOryza sativat0
- Treatment
- mixtures containing halosulfurone0
- Interactor
- barnyardgrass
Echinochloa crus-gallie0weed - Outcome
- barnyardgrass controle0
- Direction
- neutrale0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At 28 DAT, all mixtures containing halosulfuron resulted in neutral interactions for barnyardgrass control.”
t0“Louisiana rice production”
Claim · model-written summary
At 28 DAT the lower 34 g ha −1 mixture rate overcame antagonism for barnyardgrass relative to 53 g ha −1.
- Taxon
- riceOryza sativat0
- Treatment
- 34 g ha −1e0
- Interactor
- barnyardgrassEchinochloa crus-gallie0weed
- Outcome
- barnyardgrass controle0
- Direction
- overcome the antagonisme0
- Comparator
- 53 g ha −1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Quizalofop mixed with halosulfuron plus thifensulfuron at the lower rate of 34 g ha −1 was able to overcome the antagonism compared with the higher rate of 53 g ha −1 for barnyardgrass control at 28 DAT.”
t0“Louisiana rice production”
Claim · model-written summary
Both mixture rates antagonized red rice control at 28 DAT.
- Taxon
- riceOryza sativat0
- Treatment
- halosulfuron plus thifensulfurone0
- Interactor
- red ricee0weed
- Outcome
- red rice, CL-111, and CLXL-745 controle0
- Direction
- antagonistice0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both the high and the low rate of halosulfuron plus thifensulfuron resulted in antagonistic interaction for red rice, CL-111, and CLXL-745 control at 28 DAT.”
t0“Louisiana rice production”
Claim · model-written summary
Authors recommend avoiding quizalofop plus halosulfuron and thifensulfuron, especially at 53 g ha −1.
- Taxon
- riceOryza sativat0
- Treatment
- higher rate of 53 g ha −1e0
- Outcome
- mixing quizalofop with halosulfuron plus thifensulfuron should be avoidede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This research suggests that mixing quizalofop with halosulfuron plus thifensulfuron should be avoided, especially at the higher rate of 53 g ha −1 .”
t0“Louisiana rice production”
The same questions in other papers
Halosulfuron-methyl · control · Oryza sativa (rice)Positive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- negative
Halosulfuron-methyl · Echinochloa crus-galli · Oryza sativa (rice)Positive and negative results
3 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- no effect
1 paper more in this group
See all 5 papers →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.