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
Claim · model-written summary
Acifluorfen and lactofen caused more soybean phytotoxicity than fomesafen at 15 days.
- Taxon
- soybean
Glycine 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.

Verbatim
e0“Acifluorfen and lactofen were more phytotoxic to soybean 15 days after treatment (DAT) than fomesafen.”
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.”
Claim · model-written summary
Only high-rate acifluorfen and fomesafen controlled at least 80% of ivyleaf morningglory at 90 days.
- Taxon
- ivyleaf morningglory
Ipomoea 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.
Verbatim
e0“However, only the high rates (0.6 kg ai/ha) of acifluorfen and fomesafen controlled 80% or more ivyleaf morningglory 90 DAT.”
Claim · model-written summary
Untreated pitted morningglory competition reduced soybean seed yield 44% in 1985.
- Taxon
- soybean
Glycine 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.

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.”
Claim · model-written summary
Untreated pitted morningglory competition reduced soybean seed yield 22% in 1986.
- Taxon
- soybean
Glycine 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.

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.”
Claim · model-written summary
Untreated ivyleaf morningglory competition reduced soybean seed yield 58% in 1985.
- Taxon
- soybean
Glycine maxe0 - Interactor
- ivyleaf morningglory
Ipomoea hederaceae0weed
- Outcome
- seed yieldse0
- Direction
- reducede0
- Value
- 58e0
- Qualifier
- 1985e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

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.”
Claim · model-written summary
Untreated ivyleaf morningglory competition reduced soybean seed yield 49% in 1986.
- Taxon
- soybean
Glycine maxe0 - Interactor
- ivyleaf morningglory
Ipomoea hederaceae0weed
- Outcome
- seed yieldse0
- Direction
- reducede0
- Value
- 49%e0
- Qualifier
- 1986e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

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.”
Claim · model-written summary
Soybean seed yield was higher after acifluorfen or fomesafen than lactofen.
- Taxon
- Soybean
Glycine 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.

Verbatim
e0“Soybean seed yields were higher in plots receiving acifluorfen or fomesafen applications than lactofen applications.”
The same questions in other papers
fomesafen · yield · Glycine max (soybean)Results differ
19 papers in the same direction as this paper · 3 in the opposite direction · 1 reporting no difference from an alternative
- negative
- no effect
- negative
20 papers more in this group
See all 24 papers →acifluorfen · yield · Glycine max (soybean)Positive and negative results
12 papers in the same direction as this paper · 5 in the opposite direction
- positive
- negative
- negative
14 papers more in this group
See all 18 papers →acifluorfen · crop injury · Glycine max (soybean)Results agree
12 papers in the same direction as this paper
- negative
- negative
- 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.