Abstract
Field experiments were conducted in Citra, FL, and Tifton, GA, to evaluate simulated drift of dicamba and 2,4-D on cotton. Drift applications were made at the sixth leaf and first square growth stages using variable and constant carrier volumes and the same herbicide rate. Drift applied using variable carrier volumes were proportionally reduced with the herbicide rate while drift applied at constant carrier volumes were all made at 140 L ha-1, regardless of herbicide rate. At 21 DAT, dicamba applied at variable carrier volumes reduced cotton heights 8% [from nontreated check (NTC)] compared to no change in height with dicamba applied at constant carrier volumes. The same effect was seen with 2,4-D applied at first square where variable carrier volumes decreased cotton heights 18% (from NTC) compared to 2% at 140 L ha-1. Cotton yields were reduced to 70% of NTC when dicamba was applied at sixth leaf at variable carrier volumes compared to 87% at constant carrier volumes. The same response was seen with 2,4...
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Claims 6
Claim · model-written summary
Variable-volume dicamba drift reduced cotton height 8% at 21 DAT relative to the untreated check.
- Taxon
- cotton
Gossypium hirsutume0 - Treatment
- dicamba applied at variable carrier volumese0
- Outcome
- cotton heightse0
- Direction
- reducede0
- Value
- 8%e0
- Comparator
- nontreated check (NTC)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At 21 DAT, dicamba applied at variable carrier volumes reduced cotton heights 8% [from nontreated check (NTC)]”
Claim · model-written summary
Constant-volume dicamba caused no change in cotton height.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- dicamba applied at constant carrier volumese0
- Outcome
- heighte0
- Direction
- no changee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no change in height with dicamba applied at constant carrier volumes”
t0“Cotton”
Claim · model-written summary
Variable-volume 2,4-D drift at first square decreased cotton height 18% from the untreated check.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- 2,4-D applied at first square where variable carrier volumese0
- Outcome
- cotton heightse0
- Direction
- decreasede0
- Value
- 18%e0
- Comparator
- NTCe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“2,4-D applied at first square where variable carrier volumes decreased cotton heights 18% (from NTC)”
Claim · model-written summary
Constant-volume 2,4-D at first square decreased cotton height 2% at 140 L ha-1.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- 2,4-De0
- Outcome
- cotton heightse0
- Direction
- decreaseinferrede0
- Value
- 2%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“2,4-D applied at first square where variable carrier volumes decreased cotton heights 18% (from NTC) compared to 2% at 140 L ha-1”
t0“Cotton Response to Simulated Auxin Herbicide Drift Using Standard and Ultra-low Carrier Volumes”
Claim · model-written summary
Variable-volume dicamba at sixth leaf reduced cotton yield to 70% of the untreated check.
- Taxon
- CottonGossypium hirsutume0
- Treatment
- dicamba was applied at sixth leaf at variable carrier volumese0
- Outcome
- Cotton yieldse0
- Direction
- reducede0
- Value
- 70%e0
- Comparator
- NTCe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cotton yields were reduced to 70% of NTC when dicamba was applied at sixth leaf at variable carrier volumes”
Claim · model-written summary
Constant-volume dicamba at sixth leaf reduced cotton yield to 87% of the untreated check.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- constant carrier volumese0
- Outcome
- Cotton yieldse0
- Direction
- reducede0
- Value
- 87%e0
- Comparator
- NTCe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cotton yields were reduced to 70% of NTC when dicamba was applied at sixth leaf at variable carrier volumes compared to 87% at constant carrier volumes”
t0“Cotton Response to Simulated Auxin Herbicide Drift Using Standard and Ultra-low Carrier Volumes”
The same questions in other papers
2,4-D · organism · Gossypium hirsutum (cotton)Positive and negative results
2 papers in the same direction as this paper · 2 in the opposite direction
- negative
- positive
- positive
1 paper more in this group
See all 5 papers →dicamba · organism · Gossypium hirsutum (cotton)Positive and negative results
2 papers in the same direction as this paper · 3 in the opposite direction
- positive
- positive
- positive
2 papers more in this group
See all 6 papers →dicamba · yield · Gossypium hirsutum (cotton)Positive and negative results
5 papers in the same direction as this paper · 4 in the opposite direction
- positive
- positive
- positive
6 papers more in this group
See all 10 papers →dicamba · growth · Gossypium hirsutum (cotton)Results agree
2 papers in the same direction as this paper
- negative
- negative
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.