Paper · 1972 · Weed Science

Phytotoxicity of Trifluralin Vapors from Soil

Charles W. Swann; Richard Behrens

9
claims
18
verbatim quotes
34
citations
1
research areas
—
Not open access

Abstract

Foxtail millet [ Setaria italica (L.) Beauv. ‘Empire’] and proso millet (Panicum miliaceum L. ‘White’) seedlings were grown in glass units to expose selectively either roots or shoots to vapors arising from soil containing a,a,a -trifluoro-2,6-dinitro- N,N -dipropyl- p -toluidine (trifluralin). The root and shoot growth of both species was inhibited by trifluralin vapors. Suppression of root and shoot growth increased as trifluralin application rates increased. In shoot exposure, vapors arising from soil treated with 5 ppmw of trifluralin were lethal to seedlings of both species. In root exposure, root growth of both species was severely suppressed at 20 ppmw, but shoot growth was unaffected. Phytotoxic effects resulting from a given concentration of trifluralin were more severe as greater carrier volumes were used for application. Trifluralin vapors arising from soil 16 to 22 days after treatment were still sufficient to cause shoot growth inhibition.

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Claims 9

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Trifluralin vapors inhibited root and shoot growth of foxtail millet seedlings.

Taxon
Foxtail milletSetaria italicae0
Treatment
trifluralin vaporse1
Outcome
root and shoot growthe1
Direction
inhibitede1

Not reportedComparator

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

Setaria italica
Setaria italica · TaxonNo machine-readable author provided. Marknesbitt assumed (based on copyright claims). · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Foxtail millet [ Setaria italica (L.) Beauv. ‘Empire’] and proso millet (Panicum miliaceum L. ‘White’) seedlings”

✓ located verbatim in the source · abstract, characters 0–112 · show in text ↑
e1

“The root and shoot growth of both species was inhibited by trifluralin vapors”

✓ located verbatim in the source · abstract, characters 296–373 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Trifluralin vapors inhibited root and shoot growth of proso millet seedlings.

Taxon
proso milletPanicum miliaceume0
Treatment
trifluralin vaporse1
Outcome
root and shoot growthe1
Direction
inhibitede1

Not reportedComparator

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

Panicum miliaceum
Panicum miliaceum · TaxonKurt Stüber [1] · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Foxtail millet [ Setaria italica (L.) Beauv. ‘Empire’] and proso millet (Panicum miliaceum L. ‘White’) seedlings”

✓ located verbatim in the source · abstract, characters 0–112 · show in text ↑
e1

“The root and shoot growth of both species was inhibited by trifluralin vapors”

✓ located verbatim in the source · abstract, characters 296–373 · show in text ↑
Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Suppression of millet root and shoot growth increased as trifluralin application rates increased.

Taxon
millete0
Treatment
trifluralin application ratese2
Outcome
Suppression of root and shoot growthe2
Direction
increasede2

Verbatim

e0

“Foxtail millet [ Setaria italica (L.) Beauv. ‘Empire’] and proso millet (Panicum miliaceum L. ‘White’) seedlings”

✓ located verbatim in the source · abstract, characters 0–112 · show in text ↑
e2

“Suppression of root and shoot growth increased as trifluralin application rates increased”

✓ located verbatim in the source · abstract, characters 375–464 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Trifluralin vapors from soil treated with 5 ppmw were lethal to foxtail millet seedlings in shoot exposure.

Taxon
Foxtail milletSetaria italicae0
Treatment
vapors arising from soil treated with 5 ppmw of trifluraline3
Outcome
lethal to seedlingse3
Value
5 ppmwe3

Not reportedComparatorDirection

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

Setaria italica
Setaria italica · TaxonNo machine-readable author provided. Marknesbitt assumed (based on copyright claims). · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Foxtail millet [ Setaria italica (L.) Beauv. ‘Empire’] and proso millet (Panicum miliaceum L. ‘White’) seedlings”

✓ located verbatim in the source · abstract, characters 0–112 · show in text ↑
e3

“In shoot exposure, vapors arising from soil treated with 5 ppmw of trifluralin were lethal to seedlings of both species”

✓ located verbatim in the source · abstract, characters 466–585 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Trifluralin vapors from soil treated with 5 ppmw were lethal to proso millet seedlings in shoot exposure.

Taxon
proso milletPanicum miliaceume0
Treatment
vapors arising from soil treated with 5 ppmw of trifluraline3
Outcome
lethal to seedlingse3
Value
5 ppmwe3

Not reportedComparatorDirection

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

Panicum miliaceum
Panicum miliaceum · TaxonKurt Stüber [1] · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Foxtail millet [ Setaria italica (L.) Beauv. ‘Empire’] and proso millet (Panicum miliaceum L. ‘White’) seedlings”

✓ located verbatim in the source · abstract, characters 0–112 · show in text ↑
e3

“In shoot exposure, vapors arising from soil treated with 5 ppmw of trifluralin were lethal to seedlings of both species”

✓ located verbatim in the source · abstract, characters 466–585 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

In root exposure at 20 ppmw, foxtail millet root growth was severely suppressed while shoot growth was unaffected.

Taxon
Foxtail milletSetaria italicae0
Treatment
root exposuree4
Outcome
root growthe4
Direction
severely suppressede4
Value
20 ppmwe4
Qualifier
shoot growth was unaffectede4

Not reportedComparator

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

Setaria italica
Setaria italica · TaxonNo machine-readable author provided. Marknesbitt assumed (based on copyright claims). · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Foxtail millet [ Setaria italica (L.) Beauv. ‘Empire’] and proso millet (Panicum miliaceum L. ‘White’) seedlings”

✓ located verbatim in the source · abstract, characters 0–112 · show in text ↑
e4

“In root exposure, root growth of both species was severely suppressed at 20 ppmw, but shoot growth was unaffected”

✓ located verbatim in the source · abstract, characters 587–700 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

In root exposure at 20 ppmw, proso millet root growth was severely suppressed while shoot growth was unaffected.

Taxon
proso milletPanicum miliaceume0
Treatment
root exposuree4
Outcome
root growthe4
Direction
severely suppressede4
Value
20 ppmwe4
Qualifier
shoot growth was unaffectede4

Not reportedComparator

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

Panicum miliaceum
Panicum miliaceum · TaxonKurt Stüber [1] · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Foxtail millet [ Setaria italica (L.) Beauv. ‘Empire’] and proso millet (Panicum miliaceum L. ‘White’) seedlings”

✓ located verbatim in the source · abstract, characters 0–112 · show in text ↑
e4

“In root exposure, root growth of both species was severely suppressed at 20 ppmw, but shoot growth was unaffected”

✓ located verbatim in the source · abstract, characters 587–700 · show in text ↑
Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Phytotoxic effects of trifluralin vapor were more severe with greater carrier volumes used for application.

Taxon
millete0
Treatment
greater carrier volumese5
Outcome
Phytotoxic effectse5
Direction
more severee5

Verbatim

e0

“Foxtail millet [ Setaria italica (L.) Beauv. ‘Empire’] and proso millet (Panicum miliaceum L. ‘White’) seedlings”

✓ located verbatim in the source · abstract, characters 0–112 · show in text ↑
e5

“Phytotoxic effects resulting from a given concentration of trifluralin were more severe as greater carrier volumes were used for application”

✓ located verbatim in the source · abstract, characters 702–842 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Trifluralin vapors from soil 16 to 22 days after treatment still inhibited shoot growth of millet seedlings.

Taxon
millete0
Outcome
shoot growth inhibitione6
Qualifier
Trifluralin vapors arising from soil 16 to 22 days after treatmente6

Verbatim

e0

“Foxtail millet [ Setaria italica (L.) Beauv. ‘Empire’] and proso millet (Panicum miliaceum L. ‘White’) seedlings”

✓ located verbatim in the source · abstract, characters 0–112 · show in text ↑
e6

“Trifluralin vapors arising from soil 16 to 22 days after treatment were still sufficient to cause shoot growth inhibition”

✓ located verbatim in the source · abstract, characters 844–965 · show in text ↑