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
Claim · model-written summary
Goosegrass control diminished in tomato fields after repeated paraquat use.
- Taxon
- tomato
Solanum lycopersicume0 - 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.

Verbatim
e0“Diminished control of goosegrass was observed in tomato fields located in Manatee County, FL, after years of repeated paraquat use.”
Claim · model-written summary
The Manatee goosegrass biotype required a 30-fold higher paraquat rate for 50% growth reduction than the susceptible biotype.
- Taxon
- tomato
Solanum lycopersicume1 - 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.

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.”
t0“Goosegrass (Eleusine indica)”
e1“Diminished control of goosegrass was observed in tomato fields located in Manatee County, FL, after years of repeated paraquat use.”
Claim · model-written summary
The Manatee goosegrass biotype was not tolerant to clethodim.
- Taxon
- tomato
Solanum lycopersicume1 - 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.

Verbatim
e0“The Manatee biotype was not tolerant to clethodim, metribuzin, or sethoxydim.”
t0“Goosegrass (Eleusine indica)”
e1“Diminished control of goosegrass was observed in tomato fields located in Manatee County, FL, after years of repeated paraquat use.”
Claim · model-written summary
The Manatee goosegrass biotype was not tolerant to metribuzin.
- Taxon
- tomato
Solanum lycopersicume1 - 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.

Verbatim
e0“The Manatee biotype was not tolerant to clethodim, metribuzin, or sethoxydim.”
t0“Goosegrass (Eleusine indica)”
e1“Diminished control of goosegrass was observed in tomato fields located in Manatee County, FL, after years of repeated paraquat use.”
Claim · model-written summary
The Manatee goosegrass biotype was not tolerant to sethoxydim.
- Taxon
- tomato
Solanum lycopersicume1 - 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.

Verbatim
e0“The Manatee biotype was not tolerant to clethodim, metribuzin, or sethoxydim.”
t0“Goosegrass (Eleusine indica)”
e1“Diminished control of goosegrass was observed in tomato fields located in Manatee County, FL, after years of repeated paraquat use.”
Claim · model-written summary
Clethodim, metribuzin and sethoxydim adequately controlled all tested goosegrass biotypes.
- Taxon
- tomato
Solanum lycopersicume1 - 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.

Verbatim
e0“These herbicides provided adequate control of all the goosegrass biotypes tested.”
t0“Goosegrass (Eleusine indica)”
e1“Diminished control of goosegrass was observed in tomato fields located in Manatee County, FL, after years of repeated paraquat use.”
The same questions in other papers
herbicide · control · Solanum lycopersicum (tomato)Results agree
6 papers in the same direction as this paper
- positive
- positive
- 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.