Paper · 2014 · Journal of Agricultural Science

Efficacy of Pre-Emergence and Post-Emergence Soybean Herbicides for Control of Glufosinate-, Glyphosate-, and Imidazolinone-Resistant Volunteer Corn

Parminder S. Chahal; Greg Kruger; Humberto Blanco-Canqui; et al.

11
claims
22
verbatim quotes
29
citations
2
research areas
✓
Open access · cc-by

Abstract

Glyphosate-resistant corn and soybean are grown in rotations in the Midwest, including Nebraska. Volunteer corn is a problematic weed in soybean fields because it causes harvest problems, reduces yield and seed quality, and potentially harbors insects, pests, and diseases. Several pre-packaged herbicides have been registered in soybean in recent years, but response of volunteer corn to these herbicides has not yet been documented. Greenhouse experiments were conducted to evaluate the response of glufosinate-, glyphosate-, and imidazolinone-resistant volunteer corn to 20 pre-emergence (PRE) and 17 post-emergence (POST) soybean herbicides. Cumulative emergence of volunteer corn was not affected by PRE soybean herbicides compared with the nontreated control regardless of herbicide-resistant trait at 21 days after treatment (DAT). Although comparable with several other treatments, clomazone provided ? 90% control of glufosinate- and imidazolinone-resistant volunteer corn at 21 DAT. The POST soybean herbicides were applied when volunteer corn plants were at the 2 to 3 or 5 to 6 leaf stage. The ACCase-inhibiting herbicides, including clethodim, fenoxaprop plus fluazifop, fluazifop, quizalofop, and sethoxydim, provided ? 96 and ? 85% control of the 2 to 3 or 5 to 6 leaf stage volunteer corn, respectively, regardless of the herbicide-resistance trait at 28 DAT. Glyphosate tank mixed with acifluorfen, chlorimuron-ethyl, or imidazolinones usually provided > 83% control of glufosinate-and imidazolinone-resistant volunteer corn when sprayed at the 2 to 3 leaf stage at 28 DAT, but control was ? 71% for the 5 to 6 leaf stage volunteer corn. Similar results were usually reflected in volunteer corn biomass. It is concluded that PRE soybean herbicides partially controlled volunteer corn; therefore, ACCase inhibiting herbicides are the only highly effective option for soybean growers.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗

The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 11

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Pre-emergence soybean herbicides did not affect cumulative volunteer corn emergence at 21 DAT relative to an untreated control.

Taxon
SoybeanGlycine maxt0
Treatment
PRE soybean herbicidese0
Interactor
volunteer corne0weed
Outcome
Cumulative emergence of volunteer corne0
Direction
not affectede0
Qualifier
21 days after treatment (DAT)e0
Comparator
nontreated controle0

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Cumulative emergence of volunteer corn was not affected by PRE soybean herbicides compared with the nontreated control regardless of herbicide-resistant trait at 21 days after treatment (DAT).”

✓ located verbatim in the source · abstract, characters 646–838 · show in text ↑
t0

“Soybean Herbicides for Control of Glufosinate-, Glyphosate-, and Imidazolinone-Resistant Volunteer Corn”

✓ located verbatim in the source · title, characters 45–148 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Clomazone achieved at least 90% control of glufosinate-resistant volunteer corn at 21 DAT.

Taxon
SoybeanGlycine maxt0
Treatment
clomazonee0
Interactor
volunteer corne0weed
Outcome
control of glufosinate-e0
Direction
controle0
Value
90%e0

Not reportedComparator

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“clomazone provided ? 90% control of glufosinate- and imidazolinone-resistant volunteer corn at 21 DAT”

✓ located verbatim in the source · abstract, characters 890–991 · show in text ↑
t0

“Soybean Herbicides for Control of Glufosinate-, Glyphosate-, and Imidazolinone-Resistant Volunteer Corn”

✓ located verbatim in the source · title, characters 45–148 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Clomazone achieved at least 90% control of imidazolinone-resistant volunteer corn at 21 DAT.

Taxon
SoybeanGlycine maxt0
Treatment
clomazonee0
Interactor
volunteer corne0weed
Outcome
imidazolinone-resistant volunteer corne0
Direction
controle0
Value
90%e0

Not reportedComparator

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“clomazone provided ? 90% control of glufosinate- and imidazolinone-resistant volunteer corn at 21 DAT”

✓ located verbatim in the source · abstract, characters 890–991 · show in text ↑
t0

“Soybean Herbicides for Control of Glufosinate-, Glyphosate-, and Imidazolinone-Resistant Volunteer Corn”

✓ located verbatim in the source · title, characters 45–148 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

ACCase-inhibiting herbicides controlled at least 96% of volunteer corn at the 2 to 3 leaf stage at 28 DAT.

Taxon
SoybeanGlycine maxt0
Organ / stage
2 to 3e0
Treatment
ACCase-inhibiting herbicidese0
Interactor
volunteer corne0weed
Outcome
control of the 2 to 3e0
Direction
controle0
Value
96e0

Not reportedComparator

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“The ACCase-inhibiting herbicides, including clethodim, fenoxaprop plus fluazifop, fluazifop, quizalofop, and sethoxydim, provided ? 96 and ? 85% control of the 2 to 3 or 5 to 6 leaf stage volunteer corn, respectively, regardless of the herbicide-resistance trait at 28 DAT.”

✓ located verbatim in the source · abstract, characters 1102–1375 · show in text ↑
t0

“Soybean Herbicides for Control of Glufosinate-, Glyphosate-, and Imidazolinone-Resistant Volunteer Corn”

✓ located verbatim in the source · title, characters 45–148 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

ACCase-inhibiting herbicides controlled at least 85% of volunteer corn at the 5 to 6 leaf stage at 28 DAT.

Taxon
SoybeanGlycine maxt0
Organ / stage
5 to 6 leaf stagee0
Treatment
ACCase-inhibiting herbicidese0
Interactor
volunteer corne0weed
Outcome
control of the 2 to 3 or 5 to 6 leaf stage volunteer corne0
Direction
controle0
Value
85%e0

Not reportedComparator

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“The ACCase-inhibiting herbicides, including clethodim, fenoxaprop plus fluazifop, fluazifop, quizalofop, and sethoxydim, provided ? 96 and ? 85% control of the 2 to 3 or 5 to 6 leaf stage volunteer corn, respectively, regardless of the herbicide-resistance trait at 28 DAT.”

✓ located verbatim in the source · abstract, characters 1102–1375 · show in text ↑
t0

“Soybean Herbicides for Control of Glufosinate-, Glyphosate-, and Imidazolinone-Resistant Volunteer Corn”

✓ located verbatim in the source · title, characters 45–148 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Glyphosate tank mixes usually controlled more than 83% of glufosinate-resistant volunteer corn at the 2 to 3 leaf stage.

Taxon
SoybeanGlycine maxt0
Organ / stage
2 to 3 leaf stagee0
Treatment
Glyphosate tank mixed with acifluorfen, chlorimuron-ethyl, or imidazolinonese0
Interactor
volunteer corne0weed
Outcome
control of glufosinate-e0
Direction
controle0
Value
83%e0

Not reportedComparator

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Glyphosate tank mixed with acifluorfen, chlorimuron-ethyl, or imidazolinones usually provided > 83% control of glufosinate-and imidazolinone-resistant volunteer corn when sprayed at the 2 to 3 leaf stage at 28 DAT”

✓ located verbatim in the source · abstract, characters 1376–1589 · show in text ↑
t0

“Soybean Herbicides for Control of Glufosinate-, Glyphosate-, and Imidazolinone-Resistant Volunteer Corn”

✓ located verbatim in the source · title, characters 45–148 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Glyphosate tank mixes usually controlled more than 83% of imidazolinone-resistant volunteer corn at the 2 to 3 leaf stage.

Taxon
SoybeanGlycine maxt0
Organ / stage
2 to 3 leaf stagee0
Treatment
Glyphosate tank mixed with acifluorfen, chlorimuron-ethyl, or imidazolinonese0
Interactor
volunteer corne0weed
Outcome
imidazolinone-resistant volunteer corne0
Direction
controle0
Value
83%e0

Not reportedComparator

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Glyphosate tank mixed with acifluorfen, chlorimuron-ethyl, or imidazolinones usually provided > 83% control of glufosinate-and imidazolinone-resistant volunteer corn when sprayed at the 2 to 3 leaf stage at 28 DAT”

✓ located verbatim in the source · abstract, characters 1376–1589 · show in text ↑
t0

“Soybean Herbicides for Control of Glufosinate-, Glyphosate-, and Imidazolinone-Resistant Volunteer Corn”

✓ located verbatim in the source · title, characters 45–148 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Glyphosate tank mix control was at most 71% for volunteer corn at the 5 to 6 leaf stage.

Taxon
SoybeanGlycine maxt0
Organ / stage
5 to 6 leaf stagee0
Treatment
Glyphosate tank mixed with acifluorfen, chlorimuron-ethyl, or imidazolinonese0
Interactor
volunteer corne0weed
Outcome
controle0
Direction
controle0
Value
71%e0
Comparator
2 to 3 leaf stagee0

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Glyphosate tank mixed with acifluorfen, chlorimuron-ethyl, or imidazolinones usually provided > 83% control of glufosinate-and imidazolinone-resistant volunteer corn when sprayed at the 2 to 3 leaf stage at 28 DAT, but control was ? 71% for the 5 to 6 leaf stage volunteer corn.”

✓ located verbatim in the source · abstract, characters 1376–1654 · show in text ↑
t0

“Soybean Herbicides for Control of Glufosinate-, Glyphosate-, and Imidazolinone-Resistant Volunteer Corn”

✓ located verbatim in the source · title, characters 45–148 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Volunteer corn biomass usually reflected herbicide control results.

Taxon
SoybeanGlycine maxt0
Interactor
volunteer corne0weed
Outcome
volunteer corn biomasse0

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Similar results were usually reflected in volunteer corn biomass.”

✓ located verbatim in the source · abstract, characters 1655–1720 · show in text ↑
t0

“Soybean Herbicides for Control of Glufosinate-, Glyphosate-, and Imidazolinone-Resistant Volunteer Corn”

✓ located verbatim in the source · title, characters 45–148 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors conclude that pre-emergence herbicides partially control volunteer corn.

Taxon
SoybeanGlycine maxt0
Treatment
PRE soybean herbicidese0
Interactor
volunteer corne0weed
Outcome
partially controlled volunteer corne0

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“It is concluded that PRE soybean herbicides partially controlled volunteer corn”

✓ located verbatim in the source · abstract, characters 1721–1800 · show in text ↑
t0

“Soybean Herbicides for Control of Glufosinate-, Glyphosate-, and Imidazolinone-Resistant Volunteer Corn”

✓ located verbatim in the source · title, characters 45–148 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors identify ACCase-inhibiting herbicides as the only highly effective option for soybean growers.

Taxon
soybeanGlycine maxe0
Treatment
ACCase inhibiting herbicidese0
Outcome
only highly effective option for soybean growerse0

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“ACCase inhibiting herbicides are the only highly effective option for soybean growers”

✓ located verbatim in the source · abstract, characters 1813–1898 · show in text ↑
t0

“Soybean Herbicides for Control of Glufosinate-, Glyphosate-, and Imidazolinone-Resistant Volunteer Corn”

✓ located verbatim in the source · title, characters 45–148 · show in text ↑

clomazone · organism · Glycine max (soybean)Positive and negative results

4 papers: 3 positive, 1 negative or no effect

2 papers in the same direction as this paper · 1 in the opposite direction

  1. negative
  2. positive
  3. positive
See all 4 papers →

acifluorfen · organism · Glycine max (soybean)Positive and negative results

4 papers: 3 positive, 1 negative or no effect

2 papers in the same direction as this paper · 1 in the opposite direction

  1. negative
  2. positive
  3. positive
See all 4 papers →

acifluorfen · control · Glycine max (soybean)Positive and negative results

21 papers: 18 positive, 3 negative or no effect

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

  1. negative
  2. negative
  3. negative

17 papers more in this group

See all 21 papers →

glyphosate · organism · Glycine max (soybean)Positive and negative results

23 papers: 16 positive, 7 negative or no effect

15 papers in the same direction as this paper · 7 in the opposite direction

  1. positive
  2. negative
  3. negative

19 papers more in this group

See all 23 papers →

glyphosate · control · Glycine max (soybean)Positive and negative results

76 papers: 70 positive, 6 negative or no effect

69 papers in the same direction as this paper · 5 in the opposite direction · 1 reporting no difference from an alternative

  1. positive
  2. negative
  3. negative

72 papers more in this group

See all 76 papers →

chlorimuron-ethyl · control · Glycine max (soybean)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  1. positive
  2. positive
See all 3 papers →

clomazone · control · Glycine max (soybean)Results agree

6 papers: 6 positive, 0 negative or no effect

5 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

2 papers more in this group

See all 6 papers →

herbicide · growth · Glycine max (soybean)Positive and negative results

122 papers: 60 positive, 62 negative or no effect

61 papers in the same direction as this paper · 60 in the opposite direction

  1. positive
  2. positive
  3. positive

118 papers more in this group

See all 122 papers →

8 of 9 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.

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.