Paper · 2002 · Weed Technology

Confirmation and Control of a Paraquat-Tolerant Goosegrass (Eleusine indica) Biotype1

RICHARD S. BUKER; SHAWN T. STEED; WILLIAM M. STALL

6
claims
16
verbatim quotes
31
citations
2
research areas
—
Not open access

Abstract

Diminished control of goosegrass was observed in tomato fields located in Manatee County, FL, after years of repeated paraquat use. Tolerance of the Manatee biotype to paraquat was confirmed by its comparison in greenhouse studies with a susceptible biotype from the Alachua County, FL. A 30-fold increase in paraquat rate was required to reach the 50% growth reduction level of the resistant biotype over the susceptible biotype. The Manatee biotype was not tolerant to clethodim, metribuzin, or sethoxydim. These herbicides provided adequate control of all the goosegrass biotypes tested.Nomenclature: Clethodim; metribuzin; paraquat; sethoxydim; goosegrass, Eleusine indica L. #3 ELEIN; tomato, Lycopersicou esculentum Mill.Additional index words: Additive, antagonism, herbicide resistance, synergism.Abbreviations: GR50, herbicide concentration required to inhibit goosegrass aboveground biomass by 50%; WAT, weeks after treatment.

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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 6

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Goosegrass control diminished in tomato fields after repeated paraquat use.

Treatment
paraquate0
Interactor
goosegrasse0weed
Outcome
control of goosegrasse0
Direction
Diminishede0
Setting
Manatee County, FLe0

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Diminished control of goosegrass was observed in tomato fields located in Manatee County, FL, after years of repeated paraquat use.”

✓ located verbatim in the source · abstract, characters 0–131 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

The Manatee goosegrass biotype required a 30-fold higher paraquat rate for 50% growth reduction than the susceptible biotype.

Material
resistant biotypee0
Treatment
paraquate0
Interactor
goosegrasst0weed
Outcome
growth reduction level of the resistant biotypee0
Direction
increasee0
Value
30-folde0
Comparator
susceptible biotypee0

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“A 30-fold increase in paraquat rate was required to reach the 50% growth reduction level of the resistant biotype over the susceptible biotype.”

✓ located verbatim in the source · abstract, characters 287–430 · show in text ↑
t0

“Goosegrass (Eleusine indica)”

✓ located verbatim in the source · title, characters 48–76 · show in text ↑
e1

“Diminished control of goosegrass was observed in tomato fields located in Manatee County, FL, after years of repeated paraquat use.”

✓ located verbatim in the source · abstract, characters 0–131 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

The Manatee goosegrass biotype was not tolerant to clethodim.

Material
Manatee biotypee0
Treatment
clethodime0
Interactor
Goosegrasst0weed
Outcome
not tolerant to clethodime0

Not reportedDirection

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The Manatee biotype was not tolerant to clethodim, metribuzin, or sethoxydim.”

✓ located verbatim in the source · abstract, characters 431–508 · show in text ↑
t0

“Goosegrass (Eleusine indica)”

✓ located verbatim in the source · title, characters 48–76 · show in text ↑
e1

“Diminished control of goosegrass was observed in tomato fields located in Manatee County, FL, after years of repeated paraquat use.”

✓ located verbatim in the source · abstract, characters 0–131 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

The Manatee goosegrass biotype was not tolerant to metribuzin.

Material
Manatee biotypee0
Treatment
metribuzine0
Interactor
Goosegrasst0weed
Outcome
not tolerant to clethodim, metribuzin, or sethoxydime0

Not reportedDirection

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The Manatee biotype was not tolerant to clethodim, metribuzin, or sethoxydim.”

✓ located verbatim in the source · abstract, characters 431–508 · show in text ↑
t0

“Goosegrass (Eleusine indica)”

✓ located verbatim in the source · title, characters 48–76 · show in text ↑
e1

“Diminished control of goosegrass was observed in tomato fields located in Manatee County, FL, after years of repeated paraquat use.”

✓ located verbatim in the source · abstract, characters 0–131 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

The Manatee goosegrass biotype was not tolerant to sethoxydim.

Material
Manatee biotypee0
Treatment
sethoxydime0
Interactor
Goosegrasst0weed
Outcome
not tolerant to clethodim, metribuzin, or sethoxydime0

Not reportedDirection

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The Manatee biotype was not tolerant to clethodim, metribuzin, or sethoxydim.”

✓ located verbatim in the source · abstract, characters 431–508 · show in text ↑
t0

“Goosegrass (Eleusine indica)”

✓ located verbatim in the source · title, characters 48–76 · show in text ↑
e1

“Diminished control of goosegrass was observed in tomato fields located in Manatee County, FL, after years of repeated paraquat use.”

✓ located verbatim in the source · abstract, characters 0–131 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Clethodim, metribuzin and sethoxydim adequately controlled all tested goosegrass biotypes.

Treatment
These herbicidese0
Interactor
Goosegrasst0weed
Outcome
control of all the goosegrass biotypes testede0
Direction
adequatee0

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“These herbicides provided adequate control of all the goosegrass biotypes tested.”

✓ located verbatim in the source · abstract, characters 509–590 · show in text ↑
t0

“Goosegrass (Eleusine indica)”

✓ located verbatim in the source · title, characters 48–76 · show in text ↑
e1

“Diminished control of goosegrass was observed in tomato fields located in Manatee County, FL, after years of repeated paraquat use.”

✓ located verbatim in the source · abstract, characters 0–131 · show in text ↑

herbicide · control · Solanum lycopersicum (tomato)Results agree

7 papers: 7 positive, 0 negative or no effect

6 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

3 papers more in this group

See all 7 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.