Abstract
ABSTRACT One option available to cotton ( Gosspyium hirsutum L.) producers for control of glyphosate [ N ‐(phosphonomethyl)glycine]–resistant (GR) weeds is the use of glufosinate [(2 RS )‐2‐amino‐4‐[hydroxy(methyl)phosphinoyl]butyric acid] (Liberty 280SL, 24.5% [w/v] glufosinate‐ammonium salt) in glufosinate‐tolerant, transgenic cotton cultivars. A field experiment conducted in 2011 and 2012 in Florence, SC, examined the effects of glufosinate on the growth, lint yield, and fiber quality of WideStrike and Liberty‐Link cotton cultivars. Five WideStrike cultivars and three Liberty‐Link cultivars were sprayed topically at the 1‐ to 3‐leaf stage and the 7‐ to 9‐leaf stage with glufosinate at 0.59 kg ha −1 . Glufosinate‐ and weed‐free plots were maintained as controls for each cultivar. Reduced plant health and increased leaf injury were observed in both Liberty‐Link and WideStrike cultivars following glufosinate applications, but sprayed WideStrike cultivars displayed as much as 11% greater leaf injury than sprayed Liberty‐Link cultivars. No differences in lint yield were found between sprayed WideStrike or Liberty‐Link cultivars and their respective controls. However, averaged across all cultivars, lint yield of cotton sprayed with glufosinate was 105 kg ha −1 greater than unsprayed cotton. Yield increases of sprayed cotton appeared to be related to increased boll production at the first fruiting position and between nodes 11 and 15. Glufosinate had no effect on any fiber property evaluated. Cotton producers planting WideStrike or Liberty‐Link cotton cultivars and using glufosinate at labeled rates can adequately control GR weeds without negatively affecting lint yield or fiber quality. Cotton producers may also possibly experience slight lint yield increases as a result of glufosinate application in WideStrike and Liberty‐Link cotton cultivars.
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Claims 10
Claim · model-written summary
Glufosinate reduced plant health in both cultivar groups.
- Taxon
- cotton
Gossypium hirsutumt0 - Material
- Liberty‐Link and WideStrike cultivarse0
- Treatment
- glufosinate applicationse0
- Outcome
- plant healthe0
- Direction
- Reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Reduced plant health and increased leaf injury were observed in both Liberty‐Link and WideStrike cultivars following glufosinate applications”
t0“Cotton (Gosspyium hirsutum L.)”
Claim · model-written summary
Glufosinate increased leaf injury in both cultivar groups.
- Taxon
- cottonGossypium hirsutumt0
- Material
- Liberty‐Link and WideStrike cultivarse0
- Treatment
- glufosinate applicationse0
- Outcome
- leaf injurye0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Reduced plant health and increased leaf injury were observed in both Liberty‐Link and WideStrike cultivars following glufosinate applications”
t0“Cotton (Gosspyium hirsutum L.)”
Claim · model-written summary
Sprayed WideStrike cultivars had up to 11% greater leaf injury than sprayed Liberty-Link cultivars.
- Taxon
- cottonGossypium hirsutumt0
- Material
- WideStrike cultivarse0
- Treatment
- sprayede0
- Outcome
- leaf injurye0
- Direction
- greatere0
- Value
- 11%e0
- Comparator
- Liberty‐Link cultivarse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sprayed WideStrike cultivars displayed as much as 11% greater leaf injury than sprayed Liberty‐Link cultivars”
t0“Cotton (Gosspyium hirsutum L.)”
Claim · model-written summary
Lint yield did not differ between sprayed cultivars and their controls.
- Taxon
- cottonGossypium hirsutumt0
- Material
- WideStrike or Liberty‐Link cultivarse0
- Treatment
- sprayede0
- Outcome
- lint yielde0
- Direction
- No differencese0
- Comparator
- respective controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No differences in lint yield were found between sprayed WideStrike or Liberty‐Link cultivars and their respective controls.”
t0“Cotton (Gosspyium hirsutum L.)”
Claim · model-written summary
Across cultivars, glufosinate-sprayed cotton yielded 105 kg ha −1 more lint than unsprayed cotton.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- sprayed with glufosinatee0
- Outcome
- lint yielde0
- Direction
- greatere0
- Value
- 105 kg ha −1e0
- Comparator
- unsprayed cottone0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“lint yield of cotton sprayed with glufosinate was 105 kg ha −1 greater than unsprayed cotton”
Claim · model-written summary
Yield increase appeared related to increased boll production at the first fruiting position.
- Taxon
- cottonGossypium hirsutume0
- Organ / stage
- first fruiting positione0
- Outcome
- Yield increasese0
- Direction
- increasede0
- Qualifier
- boll productione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yield increases of sprayed cotton appeared to be related to increased boll production at the first fruiting position and between nodes 11 and 15.”
Claim · model-written summary
Yield increase appeared related to increased boll production between nodes 11 and 15.
- Taxon
- cottonGossypium hirsutume0
- Organ / stage
- nodes 11 and 15e0
- Outcome
- Yield increasese0
- Direction
- increasede0
- Qualifier
- boll productione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yield increases of sprayed cotton appeared to be related to increased boll production at the first fruiting position and between nodes 11 and 15.”
Claim · model-written summary
Glufosinate did not affect evaluated fiber properties.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- Glufosinatee0
- Outcome
- fiber propertye0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Glufosinate had no effect on any fiber property evaluated.”
t0“Cotton (Gosspyium hirsutum L.)”
Claim · model-written summary
The authors conclude labeled glufosinate rates can control glyphosate-resistant weeds without harming lint yield or fiber quality.
- Taxon
- CottonGossypium hirsutumt0
- Interactor
- GR weedse0weed
- Outcome
- using glufosinate at labeled rates can adequately control GR weeds without negatively affecting lint yield or fiber qualitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“using glufosinate at labeled rates can adequately control GR weeds without negatively affecting lint yield or fiber quality”
t0“Cotton (Gosspyium hirsutum L.)”
Claim · model-written summary
The authors suggest glufosinate may slightly increase lint yield in these cultivars.
- Taxon
- cottonGossypium hirsutume0
- Material
- WideStrike and Liberty‐Link cotton cultivarse0
- Treatment
- glufosinate applicatione0
- Outcome
- slight lint yield increasese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“possibly experience slight lint yield increases as a result of glufosinate application in WideStrike and Liberty‐Link cotton cultivars”
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See all 77 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.