Abstract
Abstract New technologies in grain sorghum allow for the use of multiple acetyl CoA carboxylase- (ACCase) or acetolactate synthase- (ALS) inhibiting herbicides for johnsongrass control. With the growing issue of herbicide resistance, producers need to understand which herbicides will successfully control johnsongrass accessions. To determine the efficacy of herbicides recently registered or ones with potential to become available for use in grain sorghum, johnsongrass seeds were collected from 2017 to 2021 in Arkansas, Kansas, Texas, and Oklahoma and were screened for sensitivity to fluazifop, quizalofop, nicosulfuron, and imazamox. Additionally, glyphosate sensitivity was evaluated because of its use before planting or postharvest. Quizalofop resulted in 100% mortality of all johnsongrass accessions. Of the johnsongrass accessions evaluated, 89% were completely controlled with glyphosate. The ALS inhibitors nicosulfuron and imazamox resulted in 100% mortality of all Oklahoma accessions, but failures occurred on samples from other states. One accession from Kansas, 12 from Texas, and eight from Arkansas were found to have reduced sensitivity to nicosulfuron and imazamox. If producers plan to plant grain sorghum in areas with johnsongrass populations, an ACCase-inhibitor herbicide will most likely provide effective control. Imazamox and nicosulfuron, in conjunction with the appropriate trait, can be utilized in areas with sensitive johnsongrass populations or where other sensitive grass species are present.
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Claims 9
Claim · model-written summary
Quizalofop caused complete mortality in all johnsongrass accessions.
- Taxon
- grain sorghum
Sorghum bicolore1 - Treatment
- Quizalofope0
- Interactor
- johnsongrass
.jpg?width=60)
Sorghum halepensee0weed - Outcome
- mortality of all johnsongrass accessionse0
- Direction
- 100% mortalitye0
- Value
- 100%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Quizalofop resulted in 100% mortality of all johnsongrass accessions.”
e1“New technologies in grain sorghum allow”
Claim · model-written summary
Glyphosate completely controlled 89% of evaluated johnsongrass accessions.
- Taxon
- grain sorghumSorghum bicolore1
- Treatment
- glyphosatee0
- Interactor
- johnsongrassSorghum halepensee0weed
- Outcome
- johnsongrass accessionse0
- Direction
- completely controllede0
- Value
- 89%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Of the johnsongrass accessions evaluated, 89% were completely controlled with glyphosate.”
e1“New technologies in grain sorghum allow”
Claim · model-written summary
Nicosulfuron caused complete mortality of Oklahoma johnsongrass accessions.
- Taxon
- grain sorghumSorghum bicolore1
- Treatment
- nicosulfurone0
- Outcome
- mortality of all Oklahoma accessionse0
- Direction
- 100% mortalitye0
- Value
- 100%e0
- Setting
- Oklahomae0
Not reportedInteractorComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The ALS inhibitors nicosulfuron and imazamox resulted in 100% mortality of all Oklahoma accessions, but failures occurred on samples from other states.”
e1“New technologies in grain sorghum allow”
Claim · model-written summary
Imazamox caused complete mortality of Oklahoma johnsongrass accessions.
- Taxon
- grain sorghumSorghum bicolore1
- Treatment
- imazamoxe0
- Outcome
- mortality of all Oklahoma accessionse0
- Direction
- 100% mortalitye0
- Value
- 100%e0
- Setting
- Oklahomae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The ALS inhibitors nicosulfuron and imazamox resulted in 100% mortality of all Oklahoma accessions, but failures occurred on samples from other states.”
e1“New technologies in grain sorghum allow”
Claim · model-written summary
One Kansas accession showed reduced sensitivity to both ALS herbicides.
- Taxon
- grain sorghumSorghum bicolore1
- Outcome
- reduced sensitivity to nicosulfuron and imazamoxe0
- Value
- One accessione0
- Setting
- Kansase0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“One accession from Kansas, 12 from Texas, and eight from Arkansas were found to have reduced sensitivity to nicosulfuron and imazamox.”
e1“New technologies in grain sorghum allow”
Claim · model-written summary
Twelve Texas accessions showed reduced sensitivity to both ALS herbicides.
- Taxon
- grain sorghumSorghum bicolore1
- Outcome
- reduced sensitivity to nicosulfuron and imazamoxe0
- Value
- 12e0
- Setting
- Texase0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“One accession from Kansas, 12 from Texas, and eight from Arkansas were found to have reduced sensitivity to nicosulfuron and imazamox.”
e1“New technologies in grain sorghum allow”
Claim · model-written summary
Eight Arkansas accessions showed reduced sensitivity to both ALS herbicides.
- Taxon
- grain sorghumSorghum bicolore1
- Outcome
- reduced sensitivity to nicosulfuron and imazamoxe0
- Value
- eighte0
- Setting
- Arkansase0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“One accession from Kansas, 12 from Texas, and eight from Arkansas were found to have reduced sensitivity to nicosulfuron and imazamox.”
e1“New technologies in grain sorghum allow”
Claim · model-written summary
An ACCase inhibitor is recommended for grain sorghum fields with johnsongrass.
- Taxon
- grain sorghumSorghum bicolore0
- Interactor
- johnsongrassSorghum halepensee0weed
- Outcome
- an ACCase-inhibitor herbicide will most likely provide effective controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“If producers plan to plant grain sorghum in areas with johnsongrass populations, an ACCase-inhibitor herbicide will most likely provide effective control.”
Claim · model-written summary
Imazamox and nicosulfuron are options where johnsongrass is sensitive.
- Taxon
- grain sorghumSorghum bicolore1
- Interactor
- johnsongrassSorghum halepensee0weed
- Outcome
- can be utilized in areas with sensitive johnsongrass populationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Imazamox and nicosulfuron, in conjunction with the appropriate trait, can be utilized in areas with sensitive johnsongrass populations or where other sensitive grass species are present.”
e1“New technologies in grain sorghum allow”
The same questions in other papers
quizalofop · Sorghum halepense · Sorghum bicolor (sorghum)Results agree
1 paper in the same direction as this paper
- positive
glyphosate · Sorghum halepense · 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.