Paper · 1983 · Weed Science

Effects of CGA-43089 on Responses of Sorghum (Sorghum Bicolor) to Metolachlor Combined by Ozone or Antioxidants

Kriton K. Hatzios

5
claims
8
verbatim quotes
25
citations
1
research areas
—
Not open access

Abstract

In greenhouse studies, the potential interactive effects of metolachlor [2-chloro- N -(2-ethyl-6-methylphenyl)- N -(2-methoxy-1-methylethyl)acetamide] treatments combined with the air pollutant ozone (O 3 ) or the antioxidants, piperonyl butoxide { α -[2-butoxyethyl) ethoxy]-4,5-dimethylenedioxy-2-propyltoluene} and n -propyl gallate, on the growth of sorghum [ Sorghum bicolor (L.) Moench ‘Funk G522DR’] seedlings that were protected or unprotected with the antidote, CGA-43089 [ α -(cyanomethoximino)-benzacetonitrile], were examined. Metolachlor was applied preplant incorporated at rates of 2.2, 3.9, and 5.6 kg/ha, and it was evaluated against fumigation with O 3 at 0.2 and 0.3 ppmv or against 4.9, 6.7, and 9.0 kg/ha of each antioxidant applied preplant incorporated. In combination treatments, shoot dry weight at 30 days after planting was reduced more than expected by metolachlor in the presence of the protectant CGA-43089 and ozone or some rates of the two antioxidants, suggesting synergism. In the absence of the protectant, CGA-43089, growth responses of sorghum to combination treatments of metolachlor with ozone or propyl gallate suggested an additive effect, although some treatments of metolachlor combined with piperonyl butoxide interacted synergistically.

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Claims 5

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Metolachlor with CGA-43089 and ozone reduced sorghum shoot dry weight more than expected.

Taxon
SorghumSorghumt0
Organ / stage
30 days after plantinge0
Treatment
metolachlor in the presence of the protectant CGA-43089 and ozonee0
Outcome
shoot dry weighte0
Direction
reducede0
Comparator
expectede0

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

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“shoot dry weight at 30 days after planting was reduced more than expected by metolachlor in the presence of the protectant CGA-43089 and ozone”

✓ located verbatim in the source · abstract, characters 804–946 · show in text ↑
t0

“Sorghum (Sorghum Bicolor)”

✓ located verbatim in the source · title, characters 37–62 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Metolachlor with CGA-43089 and some antioxidant rates reduced sorghum shoot dry weight more than expected.

Taxon
SorghumSorghumt0
Treatment
metolachlor in the presence of the protectant CGA-43089 and ozone or some rates of the two antioxidantse0
Outcome
shoot dry weighte0
Direction
reducede0
Comparator
expectede0

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

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“shoot dry weight at 30 days after planting was reduced more than expected by metolachlor in the presence of the protectant CGA-43089 and ozone or some rates of the two antioxidants, suggesting synergism”

✓ located verbatim in the source · abstract, characters 804–1006 · show in text ↑
t0

“Sorghum (Sorghum Bicolor)”

✓ located verbatim in the source · title, characters 37–62 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Without CGA-43089, metolachlor with ozone suggested additive sorghum growth effects.

Taxon
sorghumSorghume0
Treatment
metolachlor with ozonee0
Outcome
growth responsese0
Qualifier
additive effecte0

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

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“In the absence of the protectant, CGA-43089, growth responses of sorghum to combination treatments of metolachlor with ozone or propyl gallate suggested an additive effect”

✓ located verbatim in the source · abstract, characters 1008–1179 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Without CGA-43089, metolachlor with propyl gallate suggested additive sorghum growth effects.

Taxon
sorghumSorghume0
Treatment
metolachlor with ozone or propyl gallatee0
Outcome
growth responsese0
Qualifier
additive effecte0

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

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“In the absence of the protectant, CGA-43089, growth responses of sorghum to combination treatments of metolachlor with ozone or propyl gallate suggested an additive effect”

✓ located verbatim in the source · abstract, characters 1008–1179 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Some metolachlor and piperonyl butoxide treatments had synergistic effects on sorghum growth.

Taxon
SorghumSorghumt0
Treatment
metolachlor combined with piperonyl butoxidee0
Outcome
interacted synergisticallye0

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

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“some treatments of metolachlor combined with piperonyl butoxide interacted synergistically”

✓ located verbatim in the source · abstract, characters 1190–1280 · show in text ↑
t0

“Sorghum (Sorghum Bicolor)”

✓ located verbatim in the source · title, characters 37–62 · show in text ↑

metolachlor · growth · SorghumPositive 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. no effect
See all 4 papers →

ozone · growth · SorghumResults agree

3 papers: 0 positive, 3 negative or no effect

2 papers in the same direction as this paper

  1. no effect
  2. no effect
See all 3 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.