Abstract
Abstract Regrowth is sometimes a problem after defoliation of cotton ( Gossypium hirsutum L.). Glyphosate [ N ‐(phosphonomethyl) glycine], a systemic herbicide, has been suggested as a regrowth suppressant. Glyphosate rates of 1.12 to 4.48 kg/ha were used in greenhouse studies to measure effects on leaf abscission and regrowth inhibition. Treatments of DEF (S,S,S,‐tributylphosphorotrithioate) at 1.26 kg/ha mixed with glyphosate at either 0, 1.12, 2.24, or 3.36 kg/ were used in a field experiment to determine effects of these treatments on defoliation, regrowth, yield, and various boll, seed, and fiber properties. Bolls that dehisced 0 to 25 days after treatment were used for boll, seed, and fiber property measurements. Glyphosate suppressed regrowth development when used either alone or in combination with DEF, and enhanced defoliation when the two chemicals were applied as a mixture. Seed cotton yield and most boll components were not affected by glyphosate treatments. Seed index was reduced by glyphosate treatments of 3.36 kg/ha, and a significant interaction between glyphosate rates and boll development was indicated for seed vigor. This research indicates that glyphosate can be an effective harvest‐aid on cotton when used in combinations with the defoliant chemical DEF.
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Claims 7
Claim · model-written summary
Glyphosate suppressed cotton regrowth alone or with DEF.
- Taxon
- cotton
Gossypium hirsutumt0 - Treatment
- Glyphosatee0
- Outcome
- regrowth developmente0
- Direction
- suppressede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Glyphosate suppressed regrowth development when used either alone or in combination with DEF”
t0“Cotton”
Claim · model-written summary
Glyphosate mixed with DEF enhanced cotton defoliation.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- the two chemicalse0
- Outcome
- defoliatione0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“enhanced defoliation when the two chemicals were applied as a mixture”
t0“Cotton”
Claim · model-written summary
Glyphosate did not affect seed cotton yield.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- glyphosate treatmentse0
- Outcome
- Seed cotton yielde0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed cotton yield and most boll components were not affected by glyphosate treatments”
Claim · model-written summary
Glyphosate did not affect most cotton boll components.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- glyphosate treatmentse0
- Outcome
- most boll componentse0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed cotton yield and most boll components were not affected by glyphosate treatments”
t0“Cotton”
Claim · model-written summary
Glyphosate at 3.36 kg/ha reduced cotton seed index.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- glyphosate treatments of 3.36 kg/hae0
- Outcome
- Seed indexe0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed index was reduced by glyphosate treatments of 3.36 kg/ha”
t0“Cotton”
Claim · model-written summary
Glyphosate rate interacted with boll development in cotton seed vigor.
- Taxon
- cottonGossypium hirsutumt0
- Organ / stage
- boll developmente0
- Treatment
- glyphosate ratese0
- Outcome
- seed vigore0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a significant interaction between glyphosate rates and boll development was indicated for seed vigor”
t0“Cotton”
Claim · model-written summary
The authors conclude glyphosate can serve as a cotton harvest aid with DEF.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- glyphosatee0
- Outcome
- effective harvest‐aide0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“glyphosate can be an effective harvest‐aid on cotton when used in combinations with the defoliant chemical DEF”
The same questions in other papers
glyphosate · growth · Gossypium hirsutum (cotton)Results differ
3 papers in the same direction as this paper · 8 in the opposite direction · 1 reporting no difference from an alternative
- negative
- negative
- negative
9 papers more in this group
See all 13 papers →glyphosate · yield · Gossypium hirsutum (cotton)Results differ
25 papers in the same direction as this paper · 35 in the opposite direction
- positive
- positive
- positive
57 papers more in this group
See all 61 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.