Abstract
Abstract Fomesafen provides effective control of glyphosate-resistant Palmer amaranth in cotton. However, cotton seedlings can be injured when fomesafen is applied PRE. Therefore, greenhouse and field experiments were conducted at Athens, GA, and at six locations in Alabama and Georgia in 2013 and 2016 to evaluate cotton growth and yield response to fomesafen applied PRE at 70, 140, 280, 560, 1,120, or 2,240 g ai ha −1 , and in combination with pendimethalin, diuron, acetochlor, and fluridone at 1×label rates. Greenhouse bioassays indicated that fomesafen reduced cotton height and dry weight with increasing rate in Cecil sandy loam and Tifton loamy sand but not in Greenville sandy clay loam––possibly as a result of this soil’s higher organic matter (OM) and clay content. Fomesafen applied at 2,240 g ai ha −1 reduced cotton stand by as much as 83% compared to the nontreated check (NTC) at all field locations except Alabama’s Macon and Baldwin counties, and 1,120 g ai ha −1 reduced cotton stand only at Pulaski County, GA, by 52%. Cotton height was reduced by the two highest rates of fomesafen at all locations except Clarke County, GA, and Baldwin County, AL. Injury data indicated more visual injury followed increasing fomesafen rates, and high-rate treatments produced more injury in sandier soils. Cotton yield was unaffected by herbicide treatments at any location, except for the 1,120 g ai ha −1 rate at Pulaski County (49% yield loss compared to NTC), 2,240 g ai ha −1 at Pulaski County (72% yield loss), and Tift County (29% yield loss). These data indicated cotton yield should not be negatively affected by fomesafen applied PRE alone within label rates or in combination with pendimethalin, diuron, acetochlor, and fluridone at 1×label rates, although some visual injury, or stand or height reduction may occur early in the growing season.
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Claims 12
Claim · model-written summary
Fomesafen reduced cotton height and dry weight with increasing rate in Cecil sandy loam and Tifton loamy sand.
- Taxon
- Cotton
Gossypium hirsutumt0 - Treatment
- fomesafene0
- Outcome
- cotton height and dry weighte0
- Direction
- reducede0
- Qualifier
- with increasing ratee0
- Setting
- Cecil sandy loam and Tifton loamy sande0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton Responses”
e0“fomesafen reduced cotton height and dry weight with increasing rate in Cecil sandy loam and Tifton loamy sand but not in Greenville sandy clay loam”
Claim · model-written summary
Fomesafen did not reduce cotton height and dry weight in Greenville sandy clay loam.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- fomesafene0
- Outcome
- cotton height and dry weighte0
- Direction
- no_changeinferrede0
- Setting
- Greenville sandy clay loame0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton Responses”
e0“fomesafen reduced cotton height and dry weight with increasing rate in Cecil sandy loam and Tifton loamy sand but not in Greenville sandy clay loam”
Claim · model-written summary
Fomesafen at 2,240 g ai ha-1 reduced cotton stand by as much as 83% compared with the nontreated check.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- Fomesafen applied at 2,240 g ai ha −1e1
- Outcome
- cotton stande1
- Direction
- reducede1
- Value
- 83%e1
- Comparator
- nontreated check (NTC)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton Responses”
e1“Fomesafen applied at 2,240 g ai ha −1 reduced cotton stand by as much as 83% compared to the nontreated check (NTC)”
Claim · model-written summary
Fomesafen at 1,120 g ai ha-1 reduced cotton stand only at Pulaski County, GA, by 52%.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- 1,120 g ai ha −1e2
- Outcome
- cotton stande2
- Direction
- reducede2
- Value
- 52%e2
- Setting
- Pulaski County, GAe2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton Responses”
e2“1,120 g ai ha −1 reduced cotton stand only at Pulaski County, GA, by 52%”
Claim · model-written summary
Cotton height was reduced by the two highest fomesafen rates at most locations.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- the two highest rates of fomesafene3
- Outcome
- Cotton heighte3
- Direction
- reducede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton Responses”
e3“Cotton height was reduced by the two highest rates of fomesafen at all locations except Clarke County, GA, and Baldwin County, AL”
Claim · model-written summary
Visual injury increased with increasing fomesafen rates.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- increasing fomesafen ratese4
- Outcome
- visual injurye4
- Direction
- moree4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton Responses”
e4“Injury data indicated more visual injury followed increasing fomesafen rates”
Claim · model-written summary
High-rate treatments produced more cotton injury in sandier soils.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- high-rate treatmentse5
- Outcome
- injurye5
- Direction
- moree5
- Setting
- sandier soilse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton Responses”
e5“high-rate treatments produced more injury in sandier soils”
Claim · model-written summary
Cotton yield was unaffected by herbicide treatments at any location, apart from the exceptions named.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- herbicide treatmentse6
- Outcome
- Cotton yielde6
- Direction
- unaffectede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton Responses”
e6“Cotton yield was unaffected by herbicide treatments at any location”
Claim · model-written summary
The 1,120 g ai ha-1 rate decreased cotton yield by 49% at Pulaski County, GA, relative to the nontreated check.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- 1,120 g ai ha −1 ratee7
- Outcome
- yield losse7
- Direction
- decreaseinferrede7
- Value
- 49%e7
- Comparator
- NTCe7
- Setting
- Pulaski Countye7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton Responses”
e7“except for the 1,120 g ai ha −1 rate at Pulaski County (49% yield loss compared to NTC)”
Claim · model-written summary
The 2,240 g ai ha-1 rate decreased cotton yield by 72% at Pulaski County, GA.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- 2,240 g ai ha −1e7
- Outcome
- yield losse7
- Direction
- decreaseinferrede7
- Value
- 72%e7
- Setting
- Pulaski Countye7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton Responses”
e7“2,240 g ai ha −1 at Pulaski County (72% yield loss), and Tift County (29% yield loss)”
Claim · model-written summary
The 2,240 g ai ha-1 rate decreased cotton yield by 29% at Tift County.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- 2,240 g ai ha −1e7
- Outcome
- yield losse7
- Direction
- decreaseinferrede7
- Value
- 29%e7
- Setting
- Tift Countye7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton Responses”
e7“2,240 g ai ha −1 at Pulaski County (72% yield loss), and Tift County (29% yield loss)”
Claim · model-written summary
Cotton yield should not be negatively affected by preemergence fomesafen alone within label rates.
- Taxon
- CottonGossypium hirsutumt0
- Outcome
- cotton yielde7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton Responses”
e7“cotton yield should not be negatively affected by fomesafen applied PRE alone within label rates”
The same questions in other papers
fomesafen · growth · Gossypium hirsutum (cotton)Results differ
2 papers in the same direction as this paper
- negative
- negative
fomesafen · crop injury · Gossypium hirsutum (cotton)Positive and negative results
1 in the opposite direction
- positive
fomesafen · organism · Gossypium hirsutum (cotton)Positive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- no effect
herbicide · yield · Gossypium hirsutum (cotton)Positive and negative results
58 papers in the same direction as this paper · 123 in the opposite direction
- positive
- positive
- no effect
178 papers more in this group
See all 182 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.