Abstract
Field studies were conducted during the 2015 and 2016 growing seasons in south-central Texas to determine control of Palmer amaranth and annual grasses along with grain sorghum tolerance to quinclorac alone and in various combinations when applied to weeds < 5 cm (EPOST) or 10 to 16 cm tall (LPOST). When evaluated late-season quinclorac alone at 0.43 kg ae ha-1 controlled broadleaf signalgrass 72% when applied EPOST and 91% when applied LPOST. Combinations of quinclorac with either atrazine, pyrasulfotole + bromoxynil, dicamba, or dimethenamid-P controlled Palmer amaranth 88 to 100% when applied EPOST or LPOST; however, broadleaf signalgrass control with these combination was better when applied LPOST (75 to 95%) compared with EPOST (37 to 72%) applications. Texas millet control with quinclorac was poor in both years and was never greater than 54%. Quinclorac plus either atrazine, pyrasulfotole + bromoxynil, dicamba, or atrazine + dimethenamid-P caused at least 20% sorghum injury at one of three locations. No yield reductions from the untreated check were noted in either year; however, in 2016 all treatments with the exception of quinclorac alone at 0.29 kg ha-1 applied EPOST, quinclorac + pyrasulfotole + bromoxynil applied LPOST, quinclorac + atrazine + pyrasulfotole + bromoxynil applied LPOST, and quinclorac + dicamba at either application timing produced yields that were greater than the untreated check.
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Claims 8
Claim · model-written summary
Quinclorac controlled broadleaf signalgrass 72% with EPOST application.
- Taxon
- Grain Sorghum
Sorghum bicolort0 - Treatment
- quinclorac alone at 0.43 kg ae ha-1e0
- Interactor
- broadleaf signalgrass
Urochloa platyphyllae0weed - Outcome
- broadleaf signalgrasse0
- Direction
- controllede0
- Value
- 72%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“quinclorac alone at 0.43 kg ae ha-1 controlled broadleaf signalgrass 72% when applied EPOST”
t0“Grain Sorghum”
Claim · model-written summary
Quinclorac controlled broadleaf signalgrass 91% with LPOST application.
- Taxon
- Grain SorghumSorghum bicolort0
- Treatment
- quinclorac alone at 0.43 kg ae ha-1e0
- Interactor
- broadleaf signalgrassUrochloa platyphyllae0weed
- Outcome
- broadleaf signalgrasse0
- Direction
- controllede0
- Value
- 91%e0
- Qualifier
- LPOSTe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“quinclorac alone at 0.43 kg ae ha-1 controlled broadleaf signalgrass 72% when applied EPOST and 91% when applied LPOST”
t0“Grain Sorghum”
Claim · model-written summary
Quinclorac combinations controlled Palmer amaranth 88 to 100%.
- Taxon
- Grain SorghumSorghum bicolort0
- Treatment
- Combinations of quinclorac with either atrazine, pyrasulfotole + bromoxynil, dicamba, or dimethenamid-Pe0
- Interactor
- Palmer amaranthe0weed
- Outcome
- Palmer amaranthe0
- Direction
- controllede0
- Value
- 88 to 100%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Combinations of quinclorac with either atrazine, pyrasulfotole + bromoxynil, dicamba, or dimethenamid-P controlled Palmer amaranth 88 to 100% when applied EPOST or LPOST”
t0“Grain Sorghum”
Claim · model-written summary
Broadleaf signalgrass control with quinclorac combinations was better with LPOST than EPOST application.
- Taxon
- Grain SorghumSorghum bicolort0
- Treatment
- LPOSTe0
- Interactor
- broadleaf signalgrassUrochloa platyphyllae0weed
- Outcome
- broadleaf signalgrass controle0
- Direction
- bettere0
- Value
- 75 to 95%e0
- Qualifier
- 37 to 72%e0
- Comparator
- EPOSTe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“broadleaf signalgrass control with these combination was better when applied LPOST (75 to 95%) compared with EPOST (37 to 72%) applications”
t0“Grain Sorghum”
Claim · model-written summary
Texas millet control with quinclorac was poor and never exceeded 54%.
- Taxon
- Grain SorghumSorghum bicolort0
- Treatment
- quinclorace0
- Interactor
- Texas millete0weed
- Outcome
- Texas millet controle0
- Direction
- poore0
- Value
- 54%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Texas millet control with quinclorac was poor in both years and was never greater than 54%.”
t0“Grain Sorghum”
Claim · model-written summary
Several quinclorac combinations caused at least 20% sorghum injury at one of three locations.
- Treatment
- Quinclorac plus either atrazine, pyrasulfotole + bromoxynil, dicamba, or atrazine + dimethenamid-Pe0
- Outcome
- sorghum injurye0
- Direction
- causede0
- Value
- 20%e0
SorghumNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Quinclorac plus either atrazine, pyrasulfotole + bromoxynil, dicamba, or atrazine + dimethenamid-P caused at least 20% sorghum injury at one of three locations.”
Claim · model-written summary
No yield reductions relative to untreated check were noted in either year.
- Taxon
- Grain SorghumSorghum bicolort0
- Outcome
- yielde0
- Direction
- No yield reductionse0
- Comparator
- untreated checke0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No yield reductions from the untreated check were noted in either year”
t0“Grain Sorghum”
Claim · model-written summary
In 2016 most treatments produced yields greater than the untreated check, with stated exceptions.
- Taxon
- Grain SorghumSorghum bicolort0
- Treatment
- all treatmentse0
- Outcome
- yieldse0
- Direction
- greatere0
- Qualifier
- with the exception of quinclorac alone at 0.29 kg ha-1 applied EPOST, quinclorac + pyrasulfotole + bromoxynil applied LPOST, quinclorac + atrazine + pyrasulfotole + bromoxynil applied LPOST, and quinclorac + dicamba at either application timinge0
- Comparator
- untreated checke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in 2016 all treatments with the exception of quinclorac alone at 0.29 kg ha-1 applied EPOST, quinclorac + pyrasulfotole + bromoxynil applied LPOST, quinclorac + atrazine + pyrasulfotole + bromoxynil applied LPOST, and quinclorac + dicamba at either application timing produced yields that were greater than the untreated check.”
t0“Grain Sorghum”
The same questions in other papers
quinclorac · Urochloa platyphylla · Sorghum bicolor (sorghum)Positive and negative results
1 in the opposite direction
- negative
dicamba · crop injury · SorghumPositive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- negative
atrazine · crop injury · SorghumPositive and negative results
8 papers in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- no effect
7 papers more in this group
See all 11 papers →pyrasulfotole · crop injury · SorghumResults agree
1 paper in the same direction as this paper
- negative
3,5-dibromo-4-hydroxybenzonitrile · crop injury · SorghumResults agree
1 paper in the same direction as this paper
- negative
atrazine · organism · Sorghum bicolor (sorghum)Results agree
2 papers in the same direction as this paper
- 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.