Paper · 1996 · Weed Science

Postemergence Activity of Sulfentrazone: Effects of Surfactants and Leaf Surfaces

Franck E. Dayan; Hannah M. Green; John D. Weete; et al.

12
claims
24
verbatim quotes
69
citations
3
research areas
—
Not open access

Abstract

Sulfentrazone was foliar applied at 34 and 56 g ai ha −1 alone or in combination with surfactants to soybean cultivars Hutcheson and Centennial and to sicklepod, coffee senna, smallflower morningglory, velvetleaf, and yellow nutsedge. The most sensitive weeds, including coffee senna, smallflower morningglory, and velvetleaf, were severely injured by the lowest rate when sulfentrazone was applied with surfactants. Sulfentrazone provided the highest control of yellow nutsedge with X-77. Soybeans were not severely injured by sulfentrazone applied alone, but 55% foliar injury occurred when the herbicide was applied with X-77. However, the seedlings were not killed. Sicklepod was the most tolerant of the weeds tested. In the absence of surfactants, the order of radiolabeled sulfentrazone absorption by the foliage was Centennial (5.8%) = Hutcheson (8.5%) = coffee senna (10.4%) < yellow nutsedge (17.0%) < velvetleaf (22.3%) = smallflower morningglory (24%). Sicklepod leaves did not retain droplets containing sulfentrazone when no surfactant was used. Species with the highest foliar absorption also showed the greatest phytotoxic response to the herbicide. Addition of surfactants to the spray mixture enhanced the foliar absorption and overall phytotoxicity of sulfentrazone in the weeds. An inverse relationship was detected between the foliar absorption of sulfentrazone without surfactants and the amount of cuticular wax present on the leaves. No such correlation was observed when surfactants were used. Thus, surfactants overcame the barrier to absorption imposed by the cuticular wax and, under these conditions, selectivity apparently became dependent upon species-specific cellular tolerance to sulfentrazone.

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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 12

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Sulfentrazone applied with surfactants severely injured the most sensitive weeds at the lowest rate.

Taxon
soybeanGlycine maxe0
Treatment
applied with surfactantse1
Interactor
coffee sennaSenna occidentalise1weed
Outcome
injurede1
Direction
severelye1
Qualifier
lowest ratee1

Not reportedComparator

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗
Senna occidentalis
Senna occidentalis · InteractorDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Sulfentrazone was foliar applied at 34 and 56 g ai ha −1 alone or in combination with surfactants to soybean cultivars Hutcheson and Centennial”

✓ located verbatim in the source · abstract, characters 0–143 · show in text ↑
e1

“The most sensitive weeds, including coffee senna, smallflower morningglory, and velvetleaf, were severely injured by the lowest rate when sulfentrazone was applied with surfactants”

✓ located verbatim in the source · abstract, characters 235–415 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Sulfentrazone applied alone did not severely injure soybean.

Taxon
SoybeansGlycine maxe2
Treatment
sulfentrazone applied alonee2
Outcome
injurede2
Direction
not severely injurede2

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

“Sulfentrazone was foliar applied at 34 and 56 g ai ha −1 alone or in combination with surfactants to soybean cultivars Hutcheson and Centennial”

✓ located verbatim in the source · abstract, characters 0–143 · show in text ↑
e2

“Soybeans were not severely injured by sulfentrazone applied alone, but 55% foliar injury occurred when the herbicide was applied with X-77”

✓ located verbatim in the source · abstract, characters 490–628 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Sulfentrazone applied with X-77 caused 55% foliar injury to soybean.

Taxon
SoybeansGlycine maxe2
Treatment
applied with X-77e2
Outcome
foliar injurye2
Direction
increaseinferrede2
Value
55%e2

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

“Sulfentrazone was foliar applied at 34 and 56 g ai ha −1 alone or in combination with surfactants to soybean cultivars Hutcheson and Centennial”

✓ located verbatim in the source · abstract, characters 0–143 · show in text ↑
e2

“Soybeans were not severely injured by sulfentrazone applied alone, but 55% foliar injury occurred when the herbicide was applied with X-77”

✓ located verbatim in the source · abstract, characters 490–628 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Sulfentrazone applied with X-77 did not kill soybean seedlings.

Taxon
soybeanGlycine maxe0
Treatment
applied with X-77e3
Outcome
killede3
Direction
not killede3

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

“Sulfentrazone was foliar applied at 34 and 56 g ai ha −1 alone or in combination with surfactants to soybean cultivars Hutcheson and Centennial”

✓ located verbatim in the source · abstract, characters 0–143 · show in text ↑
e3

“55% foliar injury occurred when the herbicide was applied with X-77. However, the seedlings were not killed”

✓ located verbatim in the source · abstract, characters 561–668 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Sulfentrazone with X-77 gave the highest control of yellow nutsedge.

Taxon
soybeanGlycine maxe0
Treatment
Sulfentrazonee4
Interactor
yellow nutsedgee4weed
Outcome
controle4
Direction
higheste4
Qualifier
with X-77e4

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

“Sulfentrazone was foliar applied at 34 and 56 g ai ha −1 alone or in combination with surfactants to soybean cultivars Hutcheson and Centennial”

✓ located verbatim in the source · abstract, characters 0–143 · show in text ↑
e4

“Sulfentrazone provided the highest control of yellow nutsedge with X-77”

✓ located verbatim in the source · abstract, characters 417–488 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Sicklepod was the most tolerant of the weeds tested to sulfentrazone.

Taxon
soybeanGlycine maxe0
Treatment
Sulfentrazonee0
Interactor
Sicklepode5weed
Outcome
tolerante5
Direction
most tolerante5

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

“Sulfentrazone was foliar applied at 34 and 56 g ai ha −1 alone or in combination with surfactants to soybean cultivars Hutcheson and Centennial”

✓ located verbatim in the source · abstract, characters 0–143 · show in text ↑
e5

“Sicklepod was the most tolerant of the weeds tested”

✓ located verbatim in the source · abstract, characters 670–721 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Weed species with the highest foliar absorption of sulfentrazone showed the greatest phytotoxic response.

Taxon
soybeanGlycine maxe0
Treatment
the herbicidee6
Outcome
phytotoxic responsee6
Direction
greateste6
Qualifier
highest foliar absorptione6

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Sulfentrazone was foliar applied at 34 and 56 g ai ha −1 alone or in combination with surfactants to soybean cultivars Hutcheson and Centennial”

✓ located verbatim in the source · abstract, characters 0–143 · show in text ↑
e6

“Species with the highest foliar absorption also showed the greatest phytotoxic response to the herbicide”

✓ located verbatim in the source · abstract, characters 1060–1164 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Adding surfactants to the spray mixture enhanced foliar absorption and phytotoxicity of sulfentrazone in weeds.

Taxon
soybeanGlycine maxe0
Treatment
Addition of surfactants to the spray mixturee7
Interactor
weedse7weed
Outcome
foliar absorption and overall phytotoxicitye7
Direction
enhancede7

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

“Sulfentrazone was foliar applied at 34 and 56 g ai ha −1 alone or in combination with surfactants to soybean cultivars Hutcheson and Centennial”

✓ located verbatim in the source · abstract, characters 0–143 · show in text ↑
e7

“Addition of surfactants to the spray mixture enhanced the foliar absorption and overall phytotoxicity of sulfentrazone in the weeds”

✓ located verbatim in the source · abstract, characters 1166–1297 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Foliar absorption of sulfentrazone without surfactants was inversely related to the amount of cuticular wax on the leaves.

Taxon
soybeanGlycine maxe0
Organ / stage
leavese1
Outcome
foliar absorptione1
Direction
inverse relationshipe1
Qualifier
amount of cuticular waxe1

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Sulfentrazone was foliar applied at 34 and 56 g ai ha −1 alone or in combination with surfactants to soybean cultivars Hutcheson and Centennial”

✓ located verbatim in the source · abstract, characters 0–143 · show in text ↑
e1

“An inverse relationship was detected between the foliar absorption of sulfentrazone without surfactants and the amount of cuticular wax present on the leaves”

✓ located verbatim in the source · abstract, characters 1299–1456 · show in text ↑
Associationobservedoriginal resultno effectmeasured

Claim · model-written summary

No such correlation between absorption and cuticular wax was observed when surfactants were used.

Taxon
soybeanGlycine maxe0
Treatment
surfactantse1
Outcome
correlatione1
Direction
No such correlation was observede1

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Sulfentrazone was foliar applied at 34 and 56 g ai ha −1 alone or in combination with surfactants to soybean cultivars Hutcheson and Centennial”

✓ located verbatim in the source · abstract, characters 0–143 · show in text ↑
e1

“No such correlation was observed when surfactants were used”

✓ located verbatim in the source · abstract, characters 1458–1517 · show in text ↑
Mechanismauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

Surfactants overcame the cuticular wax barrier to sulfentrazone absorption.

Taxon
soybeanGlycine maxe0
Outcome
barrier to absorptione1
Qualifier
cuticular waxe1

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Sulfentrazone was foliar applied at 34 and 56 g ai ha −1 alone or in combination with surfactants to soybean cultivars Hutcheson and Centennial”

✓ located verbatim in the source · abstract, characters 0–143 · show in text ↑
e1

“Thus, surfactants overcame the barrier to absorption imposed by the cuticular wax and, under these conditions, selectivity apparently became dependent upon species-specific cellular tolerance to sulfentrazone”

✓ located verbatim in the source · abstract, characters 1519–1727 · show in text ↑
Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

Under surfactant use, herbicide selectivity appears to depend on species-specific cellular tolerance.

Taxon
soybeanGlycine maxe0
Outcome
selectivitye1
Qualifier
species-specific cellular tolerance to sulfentrazonee1

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Sulfentrazone was foliar applied at 34 and 56 g ai ha −1 alone or in combination with surfactants to soybean cultivars Hutcheson and Centennial”

✓ located verbatim in the source · abstract, characters 0–143 · show in text ↑
e1

“Thus, surfactants overcame the barrier to absorption imposed by the cuticular wax and, under these conditions, selectivity apparently became dependent upon species-specific cellular tolerance to sulfentrazone”

✓ located verbatim in the source · abstract, characters 1519–1727 · show in text ↑

sulfentrazone · disease · Glycine max (soybean)Positive and negative results

4 papers: 2 positive, 2 negative or no effect

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

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

sulfentrazone · crop injury · Glycine max (soybean)Positive and negative results

10 papers: 1 positive, 9 negative or no effect

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

  1. positive
  2. negative
  3. no effect

6 papers more in this group

See all 10 papers →

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

19 papers: 18 positive, 1 negative or no effect

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

  1. positive
  2. positive
  3. positive

15 papers more in this group

See all 19 papers →

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

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

application · crop injury · Glycine max (soybean)Positive and negative results

16 papers: 8 positive, 8 negative or no effect

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

  1. negative
  2. negative
  3. no effect

12 papers more in this group

See all 16 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.