Abstract
A study was conducted for three seasons in northwest Kansas, USA to evaluate acetolactate synthase (ALS)-inhibiting herbicides for downy brome (Bromus tectorum L.) and winter annual broadleaf weed control in winter wheat. Herbicides included pyroxsulam at 18.4 g ai ha−1, propoxycarbazone-Na at 44 g ai ha−1, premixed propoxycarbazone-Na & mesosulfuron-methyl at 27 g ai ha−1, and sulfosulfuron at 35 g ai ha−1. The herbicides were applied postemergence in fall and spring seasons. Averaged over time of application, no herbicide controlled downy brome more than 78% in any year. When downy brome densities were high, control was less than 60%. Pyroxsulam controlled downy brome greater than or similar to other herbicides tested. Flixweed (Descurainia sophia L.), blue mustard [Chorispora tenella (Pallas) DC.], and henbit (Lamium amplexicaule L.) control did not differ among herbicide treatments. All herbicides tested controlled flixweed and blue mustard at least 87% and 94%, respectively. However, none of the herbicides controlled henbit more than 73%. Fall herbicide applications improved weed control compared to early spring applications; improvement ranged from 3% to 31% depending on the weed species. Henbit control was greatly decreased by delaying herbicide applications until spring compared to fall applications (49% vs. 80% control). Herbicide injury was observed in only two instances. The injury was ≤13% with no difference between herbicides and the injury did not impact final plant height or grain yield.
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Claims 13
Claim · model-written summary
No herbicide controlled downy brome more than 78% in any year
- Taxon
- winter wheat
Triticum aestivume0 - Interactor
- downy brome
Bromus tectorume0weed - Outcome
- controlled downy bromee1
- Value
- 78%e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A study was conducted for three seasons in northwest Kansas, USA to evaluate acetolactate synthase (ALS)-inhibiting herbicides for downy brome (Bromus tectorum L.) and winter annual broadleaf weed control in winter wheat”
e1“Averaged over time of application, no herbicide controlled downy brome more than 78% in any year”
Claim · model-written summary
When downy brome densities were high, control was less than 60%
- Taxon
- winter wheatTriticum aestivume0
- Interactor
- downy bromeBromus tectorume1weed
- Outcome
- controle1
- Value
- less than 60%e1
- Qualifier
- When downy brome densities were highe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A study was conducted for three seasons in northwest Kansas, USA to evaluate acetolactate synthase (ALS)-inhibiting herbicides for downy brome (Bromus tectorum L.) and winter annual broadleaf weed control in winter wheat”
e1“When downy brome densities were high, control was less than 60%”
Claim · model-written summary
Pyroxsulam controlled downy brome greater than or similar to the other herbicides tested
- Taxon
- winter wheatTriticum aestivume0
- Treatment
- Pyroxsulame1
- Interactor
- downy bromeBromus tectorume0weed
- Outcome
- controlled downy bromee1
- Direction
- greater than or similar toe1
- Comparator
- other herbicides testede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A study was conducted for three seasons in northwest Kansas, USA to evaluate acetolactate synthase (ALS)-inhibiting herbicides for downy brome (Bromus tectorum L.) and winter annual broadleaf weed control in winter wheat”
e1“Pyroxsulam controlled downy brome greater than or similar to other herbicides tested”
Claim · model-written summary
Flixweed control did not differ among herbicide treatments
- Taxon
- winter wheatTriticum aestivume0
- Treatment
- herbicide treatmentse1
- Interactor
- Flixweede1weed
- Outcome
- controle1
- Direction
- did not differe1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A study was conducted for three seasons in northwest Kansas, USA to evaluate acetolactate synthase (ALS)-inhibiting herbicides for downy brome (Bromus tectorum L.) and winter annual broadleaf weed control in winter wheat”
e1“Flixweed (Descurainia sophia L.), blue mustard [Chorispora tenella (Pallas) DC.], and henbit (Lamium amplexicaule L.) control did not differ among herbicide treatments”
Claim · model-written summary
Blue mustard control did not differ among herbicide treatments
- Taxon
- winter wheatTriticum aestivume0
- Treatment
- herbicide treatmentse1
- Interactor
- blue mustarde1weed
- Outcome
- controle1
- Direction
- did not differe1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A study was conducted for three seasons in northwest Kansas, USA to evaluate acetolactate synthase (ALS)-inhibiting herbicides for downy brome (Bromus tectorum L.) and winter annual broadleaf weed control in winter wheat”
e1“Flixweed (Descurainia sophia L.), blue mustard [Chorispora tenella (Pallas) DC.], and henbit (Lamium amplexicaule L.) control did not differ among herbicide treatments”
Claim · model-written summary
Henbit control did not differ among herbicide treatments
- Taxon
- winter wheatTriticum aestivume0
- Treatment
- herbicide treatmentse1
- Interactor
- henbit
Lamium amplexicaulee1weed - Outcome
- controle1
- Direction
- did not differe1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A study was conducted for three seasons in northwest Kansas, USA to evaluate acetolactate synthase (ALS)-inhibiting herbicides for downy brome (Bromus tectorum L.) and winter annual broadleaf weed control in winter wheat”
e1“Flixweed (Descurainia sophia L.), blue mustard [Chorispora tenella (Pallas) DC.], and henbit (Lamium amplexicaule L.) control did not differ among herbicide treatments”
Claim · model-written summary
All herbicides tested controlled flixweed at least 87%
- Taxon
- winter wheatTriticum aestivume0
- Interactor
- flixweede1weed
- Outcome
- controlled flixweede1
- Value
- 87%e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A study was conducted for three seasons in northwest Kansas, USA to evaluate acetolactate synthase (ALS)-inhibiting herbicides for downy brome (Bromus tectorum L.) and winter annual broadleaf weed control in winter wheat”
e1“All herbicides tested controlled flixweed and blue mustard at least 87% and 94%, respectively”
Claim · model-written summary
All herbicides tested controlled blue mustard at least 94%
- Taxon
- winter wheatTriticum aestivume0
- Interactor
- blue mustarde1weed
- Outcome
- controlled flixweed and blue mustarde1
- Value
- 94%e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A study was conducted for three seasons in northwest Kansas, USA to evaluate acetolactate synthase (ALS)-inhibiting herbicides for downy brome (Bromus tectorum L.) and winter annual broadleaf weed control in winter wheat”
e1“All herbicides tested controlled flixweed and blue mustard at least 87% and 94%, respectively”
Claim · model-written summary
None of the herbicides controlled henbit more than 73%
- Taxon
- winter wheatTriticum aestivume0
- Interactor
- henbitLamium amplexicaulee1weed
- Outcome
- controlled henbite1
- Value
- 73%e1
- Qualifier
- none of the herbicidese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A study was conducted for three seasons in northwest Kansas, USA to evaluate acetolactate synthase (ALS)-inhibiting herbicides for downy brome (Bromus tectorum L.) and winter annual broadleaf weed control in winter wheat”
e1“However, none of the herbicides controlled henbit more than 73%”
Claim · model-written summary
Fall herbicide applications improved weed control compared with early spring applications
- Taxon
- winter wheatTriticum aestivume0
- Treatment
- Fall herbicide applicationse1
- Outcome
- weed controle1
- Direction
- improvede1
- Value
- 3% to 31%e1
- Qualifier
- depending on the weed speciese1
- Comparator
- early spring applicationse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A study was conducted for three seasons in northwest Kansas, USA to evaluate acetolactate synthase (ALS)-inhibiting herbicides for downy brome (Bromus tectorum L.) and winter annual broadleaf weed control in winter wheat”
e1“Fall herbicide applications improved weed control compared to early spring applications; improvement ranged from 3% to 31% depending on the weed species”
Claim · model-written summary
Delaying herbicide application until spring greatly decreased henbit control compared with fall applications
- Taxon
- winter wheatTriticum aestivume0
- Treatment
- delaying herbicide applications until springe1
- Interactor
- HenbitLamium amplexicaulee1weed
- Outcome
- Henbit controle1
- Direction
- greatly decreasede1
- Value
- 49% vs. 80%e1
- Comparator
- fall applicationse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A study was conducted for three seasons in northwest Kansas, USA to evaluate acetolactate synthase (ALS)-inhibiting herbicides for downy brome (Bromus tectorum L.) and winter annual broadleaf weed control in winter wheat”
e1“Henbit control was greatly decreased by delaying herbicide applications until spring compared to fall applications (49% vs. 80% control)”
Claim · model-written summary
Herbicide injury to winter wheat was 13% or less
- Taxon
- winter wheatTriticum aestivume0
- Outcome
- injurye2
- Value
- ≤13%e2
- Qualifier
- in only two instancese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A study was conducted for three seasons in northwest Kansas, USA to evaluate acetolactate synthase (ALS)-inhibiting herbicides for downy brome (Bromus tectorum L.) and winter annual broadleaf weed control in winter wheat”
e1“Herbicide injury was observed in only two instances”
e2“The injury was ≤13% with no difference between herbicides and the injury did not impact final plant height or grain yield”
Claim · model-written summary
Herbicide injury did not affect final plant height or grain yield of winter wheat
- Taxon
- winter wheatTriticum aestivume0
- Treatment
- Herbicide injurye2
- Outcome
- final plant height or grain yielde1
- Direction
- did not impacte1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A study was conducted for three seasons in northwest Kansas, USA to evaluate acetolactate synthase (ALS)-inhibiting herbicides for downy brome (Bromus tectorum L.) and winter annual broadleaf weed control in winter wheat”
e1“The injury was ≤13% with no difference between herbicides and the injury did not impact final plant height or grain yield”
e2“Herbicide injury was observed in only two instances”
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