Paper · 2009 · Weed Technology

Response of Corn to Simulated Glyphosate Drift Followed by In-Crop Herbicides

Lynette R. Brown; Darren E. Robinson; Bryan G. Young; et al.

6
claims
11
verbatim quotes
26
citations
2
research areas
—
Not open access

Abstract

Thirteen field experiments were conducted in Illinois, Indiana, Ohio, and Ontario from 2005 to 2007 to determine the effects of simulated glyphosate drift followed by in-crop applications of nicosulfuron/rimsulfuron plus dicamba/diflufenzopyr or foramsulfuron plus bromoxynil plus atrazine on nontransgenic corn injury, height, stand count, shoot dry weight, and yield. Simulated glyphosate drift at 100 and 200 g/ha, resulted in 11 to 61% visual crop injury and a 19 to 45% decrease in corn height. Simulated glyphosate drift at 200 g/ha caused a reduction in shoot dry weight by 46%, stand count by 28% and yield by 49 to 56%. Generally, simulated glyphosate drift followed by the in-crop herbicides resulted in an additive response with respect to visual crop injury, height, stand count, shoot dry weight, and yield.

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Claims 6

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Glyphosate drift at 100 and 200 g/ha produced 11 to 61% visible corn injury.

Treatment
Simulated glyphosate drift at 100 and 200 g/hae0
Outcome
visual crop injurye0
Direction
injurye0
Value
11 to 61%e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Simulated glyphosate drift at 100 and 200 g/ha, resulted in 11 to 61% visual crop injury”

✓ located verbatim in the source · abstract, characters 370–458 · show in text ↑
t0

“Corn”

✓ located verbatim in the source · title, characters 12–16 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Glyphosate drift at 100 and 200 g/ha decreased corn height by 19 to 45%.

Treatment
Simulated glyphosate drift at 100 and 200 g/hae0
Outcome
corn heighte0
Direction
decreasee0
Value
19 to 45%e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Simulated glyphosate drift at 100 and 200 g/ha, resulted in 11 to 61% visual crop injury and a 19 to 45% decrease in corn height”

✓ located verbatim in the source · abstract, characters 370–498 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Glyphosate drift at 200 g/ha reduced shoot dry weight by 46%.

Treatment
Simulated glyphosate drift at 200 g/hae0
Outcome
shoot dry weighte0
Direction
reductione0
Value
46%e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Simulated glyphosate drift at 200 g/ha caused a reduction in shoot dry weight by 46%”

✓ located verbatim in the source · abstract, characters 500–584 · show in text ↑
t0

“Corn”

✓ located verbatim in the source · title, characters 12–16 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Glyphosate drift at 200 g/ha reduced stand count by 28%.

Treatment
Simulated glyphosate drift at 200 g/hae0
Outcome
stand counte0
Direction
reductione0
Value
28%e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Simulated glyphosate drift at 200 g/ha caused a reduction in shoot dry weight by 46%, stand count by 28%”

✓ located verbatim in the source · abstract, characters 500–604 · show in text ↑
t0

“Corn”

✓ located verbatim in the source · title, characters 12–16 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Glyphosate drift at 200 g/ha reduced yield by 49 to 56%.

Treatment
Simulated glyphosate drift at 200 g/hae0
Outcome
yielde0
Direction
reductione0
Value
49 to 56%e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Simulated glyphosate drift at 200 g/ha caused a reduction in shoot dry weight by 46%, stand count by 28% and yield by 49 to 56%”

✓ located verbatim in the source · abstract, characters 500–627 · show in text ↑
t0

“Corn”

✓ located verbatim in the source · title, characters 12–16 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Glyphosate drift followed by in-crop herbicides generally had additive effects on injury, height, stand count, shoot dry weight, and yield.

Treatment
simulated glyphosate drift followed by the in-crop herbicidese0
Outcome
additive responsee0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Generally, simulated glyphosate drift followed by the in-crop herbicides resulted in an additive response with respect to visual crop injury, height, stand count, shoot dry weight, and yield.”

✓ located verbatim in the source · abstract, characters 629–820 · show in text ↑
t0

“Corn”

✓ located verbatim in the source · title, characters 12–16 · show in text ↑

glyphosate · growth · Zea mays (maize)Results differ

25 papers: 12 positive, 13 negative or no effect

12 papers in the same direction as this paper · 12 in the opposite direction

  1. negative
  2. positive
  3. positive

21 papers more in this group

See all 25 papers →

glyphosate · yield · Zea mays (maize)Results differ

77 papers: 42 positive, 35 negative or no effect

34 papers in the same direction as this paper · 42 in the opposite direction

  1. negative
  2. negative
  3. no effect

73 papers more in this group

See all 77 papers →

glyphosate · crop injury · Zea mays (maize)Positive and negative results

18 papers: 3 positive, 15 negative or no effect

14 papers in the same direction as this paper · 3 in the opposite direction

  1. negative
  2. positive
  3. positive

14 papers more in this group

See all 18 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.