Abstract
Field studies were conducted in Alabama, Arkansas, Georgia, Louisiana, Mississippi, North Carolina, and Tennessee during 2010 and 2011 to determine the effect of glufosinate application rate on LibertyLink and WideStrike cotton. Glufosinate was applied in a single application (three-leaf cotton) or sequential application (three-leaf followed by eight-leaf cotton) at 0.6, 1.2, 1.8, and 2.4 kg ai ha −1 . Glufosinate application rate did not affect visual injury or growth parameters measured in LibertyLink cotton. No differences in LibertyLink cotton yield were observed because of glufosinate application rate; however, LibertyLink cotton treated with glufosinate yielded slightly more cotton than the nontreated check. Visual estimates of injury to WideStrike cotton increased with each increase in glufosinate application rate. However, the injury was transient, and by 28 d after the eight-leaf application, no differences in injury were observed. WideStrike cotton growth was adversely affected during the growing season following glufosinate application at rates of 1.2 kg ha −1 and greater; however, cotton height and total nodes were unaffected by glufosinate application rate at the end of the season. WideStrike cotton maturity was delayed, and yields were reduced following glufosinate application at rates of 1.2 kg ha −1 and above. Fiber quality of LibertyLink and WideStrike cotton was unaffected by glufosinate application rate. These data indicate that glufosinate may be applied to WideStrike cotton at rates of 0.6 kg ha −1 without inhibiting cotton growth, development, or yield. Given the lack of injury or yield reduction following glufosinate application to LibertyLink cotton, these cultivars possess robust resistance to glufosinate. Growers are urged to be cautious when increasing glufosinate application rates to increase control of glyphosate-resistant Palmer amaranth in WideStrike cotton. However, glufosinate application rates may be increased to maximum labeled rates when making applications to LibertyLink cotton without fear of reducing cotton growth, development, or yield.
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Claims 14
Claim · model-written summary
Glufosinate application rate did not affect visual injury or growth parameters in LibertyLink cotton.
- Taxon
- cotton
Gossypium hirsutume0 - Material
- LibertyLinke1
- Treatment
- Glufosinate application ratee1
- Outcome
- visual injury or growth parameterse1
- Direction
- did not affecte1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“effect of glufosinate application rate on LibertyLink and WideStrike cotton”
e1“Glufosinate application rate did not affect visual injury or growth parameters measured in LibertyLink cotton”
Claim · model-written summary
Glufosinate application rate did not change LibertyLink cotton yield.
- Taxon
- cottonGossypium hirsutume0
- Material
- LibertyLinke2
- Treatment
- glufosinate application ratee2
- Outcome
- yielde2
- Direction
- No differencese2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“effect of glufosinate application rate on LibertyLink and WideStrike cotton”
e2“No differences in LibertyLink cotton yield were observed because of glufosinate application rate”
Claim · model-written summary
Glufosinate-treated LibertyLink cotton yielded slightly more than the nontreated check.
- Taxon
- cottonGossypium hirsutume0
- Material
- LibertyLinke3
- Treatment
- glufosinatee3
- Outcome
- yielde3
- Direction
- yielded slightly moree3
- Comparator
- nontreated checke3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“effect of glufosinate application rate on LibertyLink and WideStrike cotton”
e3“LibertyLink cotton treated with glufosinate yielded slightly more cotton than the nontreated check”
Claim · model-written summary
Visual injury to WideStrike cotton increased with each increase in glufosinate application rate.
- Taxon
- cottonGossypium hirsutume0
- Material
- WideStrikee4
- Treatment
- glufosinate application ratee4
- Outcome
- injurye4
- Direction
- increasede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“effect of glufosinate application rate on LibertyLink and WideStrike cotton”
e4“Visual estimates of injury to WideStrike cotton increased with each increase in glufosinate application rate”
Claim · model-written summary
By 28 days after the eight-leaf glufosinate application, injury on cotton no longer differed among rates.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- eight-leaf applicatione5
- Outcome
- injurye5
- Direction
- no differencese5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“effect of glufosinate application rate on LibertyLink and WideStrike cotton”
e5“the injury was transient, and by 28 d after the eight-leaf application, no differences in injury were observed”
Claim · model-written summary
Glufosinate applied at rates of 1.2 kg/ha and greater adversely affected WideStrike cotton growth during the following season.
- Taxon
- cottonGossypium hirsutume0
- Material
- WideStrike cottone6
- Treatment
- glufosinate applicatione6
- Outcome
- growthe6
- Direction
- adversely affectede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“effect of glufosinate application rate on LibertyLink and WideStrike cotton”
e6“WideStrike cotton growth was adversely affected during the growing season following glufosinate application”
Claim · model-written summary
Cotton height and total nodes were unaffected by glufosinate application rate at the end of the season.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- glufosinate application ratee7
- Outcome
- height and total nodese7
- Direction
- unaffectede7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“effect of glufosinate application rate on LibertyLink and WideStrike cotton”
e7“cotton height and total nodes were unaffected by glufosinate application rate at the end of the season”
Claim · model-written summary
WideStrike cotton maturity was delayed following glufosinate application at rates of 1.2 kg/ha and above.
- Taxon
- cottonGossypium hirsutume0
- Material
- WideStrike cottone1
- Treatment
- glufosinate applicatione2
- Outcome
- maturitye1
- Direction
- delayede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“effect of glufosinate application rate on LibertyLink and WideStrike cotton”
e1“WideStrike cotton maturity was delayed”
e2“yields were reduced following glufosinate application”
Claim · model-written summary
Yields of WideStrike cotton were reduced following glufosinate application at rates of 1.2 kg/ha and above.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- glufosinate applicatione1
- Outcome
- yieldse1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“effect of glufosinate application rate on LibertyLink and WideStrike cotton”
e1“yields were reduced following glufosinate application”
Claim · model-written summary
Fiber quality of LibertyLink and WideStrike cotton was unaffected by glufosinate application rate.
- Taxon
- cottonGossypium hirsutume0
- Material
- LibertyLink and WideStrike cottone1
- Treatment
- glufosinate application ratee1
- Outcome
- Fiber qualitye1
- Direction
- unaffectede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“effect of glufosinate application rate on LibertyLink and WideStrike cotton”
e1“Fiber quality of LibertyLink and WideStrike cotton was unaffected by glufosinate application rate”
Claim · model-written summary
Glufosinate may be applied to WideStrike cotton at 0.6 kg/ha without inhibiting growth, development or yield.
Verbatim
e0“These data indicate that glufosinate may be applied to WideStrike cotton at rates of 0.6”
Claim · model-written summary
LibertyLink and WideStrike cultivars possess robust resistance to glufosinate.
- Taxon
- cottonGossypium hirsutume0
- Outcome
- robust resistance to glufosinatee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“effect of glufosinate application rate on LibertyLink and WideStrike cotton”
e1“these cultivars possess robust resistance to glufosinate”
Claim · model-written summary
Growers should be cautious when raising glufosinate rates to control glyphosate-resistant Palmer amaranth in WideStrike cotton.
Verbatim
e0“Growers are urged to be cautious when increasing glufosinate application rates to increase control of glyphosate-resistant Palmer amaranth in WideStrike cotton”
Claim · model-written summary
Glufosinate rates may be raised to the maximum labeled rate on LibertyLink cotton without reducing growth, development or yield.
Verbatim
e0“glufosinate application rates may be increased to maximum labeled rates when making applications to LibertyLink cotton without fear of reducing cotton growth, development, or yield”
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See all 5 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.