Paper · 2012 · Weed Technology

Imidazolinone-Resistant Soft Red Winter Wheat Weed Control and Crop Response to ALS-Inhibiting Herbicides

Timothy L. Grey; George S. Cutts; Jerry Johnson

13
claims
26
verbatim quotes
6
citations
2
research areas
—
Not open access

Abstract

Inability to control Italian ryegrass in soft red winter wheat can result in reduced yields, reduced quality, or both and cause double-crop planting to be inefficient. Experiments were conducted at Plains, GA, to evaluate diclofop-susceptible Italian ryegrass control in a single-gene imidazolinone (IMI)-resistant wheat using imazamox, mesosulfuron, and diclofop. Treatments were applied at variable rates and tank mixtures to the IMI-resistant soft red winter wheat ‘AGS CL7’ at Feekes' stages 1 (EMERG) or 2 (POST). Lower Italian ryegrass control of 78% or less was observed with single treatments of EMERG or POST herbicide applications. Diclofop provided maximum Italian ryegrass control of 79% or greater with minimal injury to wheat cultivar AGS CL 7. Sequential applications of diclofop at EMERG followed by imazamox, mesosulfuron, or diclofop POST provided maximum Italian ryegrass control at 86% or greater. The efficacy of the acetolactate synthase (ALS)–inhibiting herbicides registered for wheat weed control for AGS CL7 and ‘AGS 2000’ (conventional) was also evaluated. Mesosulfuron at 40 g ai ha −1 resulted in 17% injury at 7 d after application (DAA), tribenuron at 40 g ai ha −1 caused 9% injury 7 DAA, and pyroxsulam at 190 g ai ha −1 caused 7% injury at 7 DAA, but was transient and not observed after heading or at harvest. No yield differences were noted between the nontreated control for AGS 2000 and AGS CL 7 for chlorsulfuron, mesosulfuron, thifensulfuron, tribenuron, prosulfuron, and pyroxsulam.

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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 13

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Single EMERG or POST herbicide applications gave lower Italian ryegrass control, 78% or less.

Treatment
single treatments of EMERG or POST herbicide applicationse1
Interactor
Italian ryegrassLolium multiflorume1weed
Outcome
Italian ryegrass controle1
Direction
Lowere1
Value
78% or lesse1

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗
Lolium multiflorum
Lolium multiflorum · InteractorKristian Peters -- Fabelfroh 09:38, 2 January 2007 (UTC) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Imidazolinone-Resistant Soft Red Winter Wheat”

✓ located verbatim in the source · title, characters 0–45 · show in text ↑
e1

“Lower Italian ryegrass control of 78% or less was observed with single treatments of EMERG or POST herbicide applications”

✓ located verbatim in the source · abstract, characters 519–640 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Diclofop gave maximum Italian ryegrass control of 79% or greater in AGS CL 7 wheat.

Material
AGS CL 7e1
Treatment
Diclofope1
Interactor
Italian ryegrassLolium multiflorume1weed
Outcome
Italian ryegrass controle1
Direction
maximume1
Value
79% or greatere1

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗
Lolium multiflorum
Lolium multiflorum · InteractorKristian Peters -- Fabelfroh 09:38, 2 January 2007 (UTC) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Imidazolinone-Resistant Soft Red Winter Wheat”

✓ located verbatim in the source · title, characters 0–45 · show in text ↑
e1

“Diclofop provided maximum Italian ryegrass control of 79% or greater with minimal injury to wheat cultivar AGS CL 7”

✓ located verbatim in the source · abstract, characters 642–757 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Diclofop caused minimal injury to wheat cultivar AGS CL 7.

Material
AGS CL 7e1
Treatment
Diclofope1
Outcome
injurye1
Direction
decreaseinferrede1
Qualifier
minimale1

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Imidazolinone-Resistant Soft Red Winter Wheat”

✓ located verbatim in the source · title, characters 0–45 · show in text ↑
e1

“Diclofop provided maximum Italian ryegrass control of 79% or greater with minimal injury to wheat cultivar AGS CL 7”

✓ located verbatim in the source · abstract, characters 642–757 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Sequential EMERG diclofop followed by POST imazamox, mesosulfuron or diclofop gave maximum Italian ryegrass control of 86% or greater.

Treatment
Sequential applications of diclofop at EMERG followed by imazamox, mesosulfuron, or diclofop POSTe1
Interactor
Italian ryegrassLolium multiflorume1weed
Outcome
Italian ryegrass controle1
Direction
maximume1
Value
86% or greatere1

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗
Lolium multiflorum
Lolium multiflorum · InteractorKristian Peters -- Fabelfroh 09:38, 2 January 2007 (UTC) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Imidazolinone-Resistant Soft Red Winter Wheat”

✓ located verbatim in the source · title, characters 0–45 · show in text ↑
e1

“Sequential applications of diclofop at EMERG followed by imazamox, mesosulfuron, or diclofop POST provided maximum Italian ryegrass control at 86% or greater”

✓ located verbatim in the source · abstract, characters 759–916 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Mesosulfuron at 40 g ai ha −1 caused 17% injury to wheat at 7 DAA.

Treatment
Mesosulfuron at 40 g ai ha −1e1
Outcome
injurye1
Direction
increaseinferrede1
Value
17%e1

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Imidazolinone-Resistant Soft Red Winter Wheat”

✓ located verbatim in the source · title, characters 0–45 · show in text ↑
e1

“Mesosulfuron at 40 g ai ha −1 resulted in 17% injury at 7 d after application (DAA), tribenuron at 40 g ai ha −1 caused 9% injury 7 DAA, and pyroxsulam at 190 g ai ha −1 caused 7% injury at 7 DAA, but was transient and not observed after heading or at harvest”

✓ located verbatim in the source · abstract, characters 1084–1343 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Tribenuron at 40 g ai ha −1 caused 9% injury to wheat at 7 DAA.

Treatment
tribenuron at 40 g ai ha −1e1
Outcome
injurye1
Direction
increaseinferrede1
Value
9% injurye1

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Imidazolinone-Resistant Soft Red Winter Wheat”

✓ located verbatim in the source · title, characters 0–45 · show in text ↑
e1

“Mesosulfuron at 40 g ai ha −1 resulted in 17% injury at 7 d after application (DAA), tribenuron at 40 g ai ha −1 caused 9% injury 7 DAA, and pyroxsulam at 190 g ai ha −1 caused 7% injury at 7 DAA, but was transient and not observed after heading or at harvest”

✓ located verbatim in the source · abstract, characters 1084–1343 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Pyroxsulam at 190 g ai ha −1 caused 7% injury to wheat at 7 DAA, which was transient and not observed after heading or at harvest.

Treatment
pyroxsulam at 190 g ai ha −1e1
Outcome
injurye1
Direction
increaseinferrede1
Value
7%e1
Qualifier
transient and not observed after heading or at harveste1

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Imidazolinone-Resistant Soft Red Winter Wheat”

✓ located verbatim in the source · title, characters 0–45 · show in text ↑
e1

“pyroxsulam at 190 g ai ha −1 caused 7% injury at 7 DAA, but was transient and not observed after heading or at harvest”

✓ located verbatim in the source · abstract, characters 1225–1343 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Chlorsulfuron did not change wheat yield compared with the nontreated control for AGS 2000 and AGS CL 7.

Material
AGS 2000 and AGS CL 7e1
Treatment
chlorsulfurone1
Outcome
yield differencese1
Direction
no_changeinferrede1
Comparator
nontreated controle1

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Imidazolinone-Resistant Soft Red Winter Wheat”

✓ located verbatim in the source · title, characters 0–45 · show in text ↑
e1

“No yield differences were noted between the nontreated control for AGS 2000 and AGS CL 7 for chlorsulfuron, mesosulfuron, thifensulfuron, tribenuron, prosulfuron, and pyroxsulam”

✓ located verbatim in the source · abstract, characters 1345–1522 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Mesosulfuron did not change wheat yield compared with the nontreated control for AGS 2000 and AGS CL 7.

Material
AGS 2000 and AGS CL 7e1
Treatment
mesosulfurone1
Outcome
yield differencese1
Direction
no_changeinferrede1
Comparator
nontreated controle1

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Imidazolinone-Resistant Soft Red Winter Wheat”

✓ located verbatim in the source · title, characters 0–45 · show in text ↑
e1

“No yield differences were noted between the nontreated control for AGS 2000 and AGS CL 7 for chlorsulfuron, mesosulfuron, thifensulfuron, tribenuron, prosulfuron, and pyroxsulam”

✓ located verbatim in the source · abstract, characters 1345–1522 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Thifensulfuron did not change wheat yield compared with the nontreated control for AGS 2000 and AGS CL 7.

Material
AGS 2000 and AGS CL 7e1
Treatment
thifensulfurone1
Outcome
yield differencese1
Direction
no_changeinferrede1
Comparator
nontreated controle1

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Imidazolinone-Resistant Soft Red Winter Wheat”

✓ located verbatim in the source · title, characters 0–45 · show in text ↑
e1

“No yield differences were noted between the nontreated control for AGS 2000 and AGS CL 7 for chlorsulfuron, mesosulfuron, thifensulfuron, tribenuron, prosulfuron, and pyroxsulam”

✓ located verbatim in the source · abstract, characters 1345–1522 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Tribenuron did not change wheat yield compared with the nontreated control for AGS 2000 and AGS CL 7.

Material
AGS 2000 and AGS CL 7e1
Treatment
tribenurone1
Outcome
yield differencese1
Direction
no_changeinferrede1
Comparator
nontreated controle1

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Imidazolinone-Resistant Soft Red Winter Wheat”

✓ located verbatim in the source · title, characters 0–45 · show in text ↑
e1

“No yield differences were noted between the nontreated control for AGS 2000 and AGS CL 7 for chlorsulfuron, mesosulfuron, thifensulfuron, tribenuron, prosulfuron, and pyroxsulam”

✓ located verbatim in the source · abstract, characters 1345–1522 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Prosulfuron did not change wheat yield compared with the nontreated control for AGS 2000 and AGS CL 7.

Material
AGS 2000 and AGS CL 7e1
Treatment
prosulfurone1
Outcome
yield differencese1
Direction
no_changeinferrede1
Comparator
nontreated controle1

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Imidazolinone-Resistant Soft Red Winter Wheat”

✓ located verbatim in the source · title, characters 0–45 · show in text ↑
e1

“No yield differences were noted between the nontreated control for AGS 2000 and AGS CL 7 for chlorsulfuron, mesosulfuron, thifensulfuron, tribenuron, prosulfuron, and pyroxsulam”

✓ located verbatim in the source · abstract, characters 1345–1522 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Pyroxsulam did not change wheat yield compared with the nontreated control for AGS 2000 and AGS CL 7.

Material
AGS 2000 and AGS CL 7e1
Treatment
pyroxsulame1
Outcome
yield differencese1
Direction
no_changeinferrede1
Comparator
nontreated controle1

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Imidazolinone-Resistant Soft Red Winter Wheat”

✓ located verbatim in the source · title, characters 0–45 · show in text ↑
e1

“No yield differences were noted between the nontreated control for AGS 2000 and AGS CL 7 for chlorsulfuron, mesosulfuron, thifensulfuron, tribenuron, prosulfuron, and pyroxsulam”

✓ located verbatim in the source · abstract, characters 1345–1522 · show in text ↑

chlorsulfuron · yield · Triticum aestivum (wheat)Results differ

31 papers: 12 positive, 19 negative or no effect

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

  1. positive
  2. negative
  3. positive

27 papers more in this group

See all 31 papers →

diclofop · crop injury · Triticum aestivum (wheat)Positive and negative results

3 papers: 1 positive, 2 negative or no effect

2 in the opposite direction

  1. negative
  2. negative
See all 3 papers →

diclofop · Lolium multiflorum · Triticum aestivum (wheat)Positive and negative results

5 papers: 4 positive, 1 negative or no effect

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

  1. no effect
  2. positive
  3. positive

1 paper more in this group

See all 5 papers →

tribenuron · yield · Triticum aestivum (wheat)Positive and negative results

9 papers: 4 positive, 5 negative or no effect

4 papers in the same direction as this paper · 4 in the opposite direction

  1. positive
  2. positive
  3. positive

5 papers more in this group

See all 9 papers →

imazamox · Lolium multiflorum · Triticum aestivum (wheat)Results agree

4 papers: 4 positive, 0 negative or no effect

3 papers in the same direction as this paper

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

tribenuron · crop injury · Triticum aestivum (wheat)Results agree

5 papers: 0 positive, 5 negative or no effect

4 papers in the same direction as this paper

  1. negative
  2. negative
  3. negative

1 paper more in this group

See all 5 papers →

thifensulfuron · yield · Triticum aestivum (wheat)Results agree

5 papers: 0 positive, 5 negative or no effect

4 papers in the same direction as this paper

  1. no effect
  2. no effect
  3. negative

1 paper more in this group

See all 5 papers →

herbicide · Lolium multiflorum · Triticum aestivum (wheat)Positive and negative results

11 papers: 8 positive, 3 negative or no effect

2 papers in the same direction as this paper · 8 in the opposite direction

  1. positive
  2. positive
  3. positive

7 papers more in this group

See all 11 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.