Paper · 1988 · Weed Science

Recovery of Pitted Morningglory (Ipomoea lacunosa) and Ivyleaf Morningglory (Ipomoea hederacea) Following Applications of Acifluorfen, Fomesafen, and Lactofen

Jeffery M. Higgins; Ted Whitwell; Edward C. Murdock; et al.

8
claims
8
verbatim quotes
38
citations
2
research areas
—
Not open access

Abstract

Field experiments were conducted during 1985 and 1986 to determine the response of soybean [ Glycine max (L.) Merr. ‘Coker 156’], pitted morningglory ( Ipomoea lacunosa L. # IPOLA), and ivyleaf morningglory [ Ipomoea hederacea (L.) Jacq. # IPOHE] to acifluorfen {5-[2-chloro-4-(trifluoromethyl)phenoxy]-2-nitrobenzoic acid}, fomesafen {5-[2-chloro-4-(trifluoromethyl) phenoxy]- N -(methylsulfonyl)-2-nitrobenzamide}, and lactofen {(±)-2-ethoxy-1-methyl-2-oxoethyl-5-[2-chloro-4-(trifluoromethyl)phenoxy]-2-dinitrobenzoate}. Acifluorfen and lactofen were more phytotoxic to soybean 15 days after treatment (DAT) than fomesafen. All herbicides at low rates controlled 80% or more pitted morningglory. However, only the high rates (0.6 kg ai/ha) of acifluorfen and fomesafen controlled 80% or more ivyleaf morningglory 90 DAT. Full-season competition from untreated pitted morningglory reduced soybean seed yields 44 and 22% in 1985 and 1986, respectively, compared to 58 and 49% with untreated ivyleaf morningglory. Soybean seed yields were higher in plots receiving acifluorfen or fomesafen applications than lactofen applications.

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Claims 8

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Acifluorfen and lactofen caused more soybean phytotoxicity than fomesafen at 15 days.

Taxon
soybeanGlycine maxe0
Treatment
Acifluorfen and lactofene0
Outcome
phytotoxice0
Direction
moree0
Qualifier
15 days after treatment (DAT)e0
Comparator
fomesafene0

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Acifluorfen and lactofen were more phytotoxic to soybean 15 days after treatment (DAT) than fomesafen.”

✓ located verbatim in the source · abstract, characters 524–626 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

All low-rate herbicide treatments controlled at least 80% of pitted morningglory.

Taxon
pitted morningglorye0
Treatment
All herbicides at low ratese0
Outcome
controllede0
Direction
controllede0
Value
80% or moree0

Not reportedComparator

Verbatim

e0

“All herbicides at low rates controlled 80% or more pitted morningglory.”

✓ located verbatim in the source · abstract, characters 627–698 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Only high-rate acifluorfen and fomesafen controlled at least 80% of ivyleaf morningglory at 90 days.

Taxon
ivyleaf morninggloryIpomoea hederaceae0
Treatment
high rates (0.6 kg ai/ha) of acifluorfen and fomesafene0
Outcome
controllede0
Direction
controllede0
Value
80% or moree0
Qualifier
90 DATe0

Not reportedComparator

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

Ipomoea hederacea
Ipomoea hederacea · TaxonUser:SB_Johnny · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“However, only the high rates (0.6 kg ai/ha) of acifluorfen and fomesafen controlled 80% or more ivyleaf morningglory 90 DAT.”

✓ located verbatim in the source · abstract, characters 699–823 · show in text ↑
Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Untreated pitted morningglory competition reduced soybean seed yield 44% in 1985.

Taxon
soybeanGlycine maxe0
Interactor
pitted morningglorye0weed
Outcome
seed yieldse0
Direction
reducede0
Value
44e0
Qualifier
in 1985e0

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Full-season competition from untreated pitted morningglory reduced soybean seed yields 44 and 22% in 1985 and 1986, respectively, compared to 58 and 49% with untreated ivyleaf morningglory.”

✓ located verbatim in the source · abstract, characters 824–1013 · show in text ↑
Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Untreated pitted morningglory competition reduced soybean seed yield 22% in 1986.

Taxon
soybeanGlycine maxe0
Interactor
pitted morningglorye0weed
Outcome
seed yieldse0
Direction
reducede0
Value
22%e0
Qualifier
1986e0

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Full-season competition from untreated pitted morningglory reduced soybean seed yields 44 and 22% in 1985 and 1986, respectively, compared to 58 and 49% with untreated ivyleaf morningglory.”

✓ located verbatim in the source · abstract, characters 824–1013 · show in text ↑
Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Untreated ivyleaf morningglory competition reduced soybean seed yield 58% in 1985.

Taxon
soybeanGlycine maxe0
Interactor
ivyleaf morninggloryIpomoea hederaceae0weed
Outcome
seed yieldse0
Direction
reducede0
Value
58e0
Qualifier
1985e0

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗
Ipomoea hederacea
Ipomoea hederacea · InteractorUser:SB_Johnny · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Full-season competition from untreated pitted morningglory reduced soybean seed yields 44 and 22% in 1985 and 1986, respectively, compared to 58 and 49% with untreated ivyleaf morningglory.”

✓ located verbatim in the source · abstract, characters 824–1013 · show in text ↑
Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Untreated ivyleaf morningglory competition reduced soybean seed yield 49% in 1986.

Taxon
soybeanGlycine maxe0
Interactor
ivyleaf morninggloryIpomoea hederaceae0weed
Outcome
seed yieldse0
Direction
reducede0
Value
49%e0
Qualifier
1986e0

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗
Ipomoea hederacea
Ipomoea hederacea · InteractorUser:SB_Johnny · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Full-season competition from untreated pitted morningglory reduced soybean seed yields 44 and 22% in 1985 and 1986, respectively, compared to 58 and 49% with untreated ivyleaf morningglory.”

✓ located verbatim in the source · abstract, characters 824–1013 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Soybean seed yield was higher after acifluorfen or fomesafen than lactofen.

Taxon
SoybeanGlycine maxe0
Treatment
acifluorfen or fomesafen applicationse0
Outcome
seed yieldse0
Direction
highere0
Comparator
lactofen applicationse0

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Soybean seed yields were higher in plots receiving acifluorfen or fomesafen applications than lactofen applications.”

✓ located verbatim in the source · abstract, characters 1014–1130 · show in text ↑

fomesafen · yield · Glycine max (soybean)Results differ

24 papers: 20 positive, 4 negative or no effect

19 papers in the same direction as this paper · 3 in the opposite direction · 1 reporting no difference from an alternative

  1. negative
  2. no effect
  3. negative

20 papers more in this group

See all 24 papers →

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

18 papers: 13 positive, 5 negative or no effect

12 papers in the same direction as this paper · 5 in the opposite direction

  1. positive
  2. negative
  3. negative

14 papers more in this group

See all 18 papers →

acifluorfen · crop injury · Glycine max (soybean)Results agree

13 papers: 0 positive, 13 negative or no effect

12 papers in the same direction as this paper

  1. negative
  2. negative
  3. negative

9 papers more in this group

See all 13 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.