Abstract
In field studies, postemergence applications of HOE 29152 {2-[4-(trifluoromethyl phenoxy)phenoxy] propanoate} at rates of 1.68 to 3.36 kg/ha effectively controlled quackgrass [ Agropyron repens (L.) Beauv.] when applied to plants in the one- to three-leaf stage. Control was still effective the following year. The addition of a surfactant to HOE 29152 did not increase quackgrass control, but it did increase soybean [ Glycine max (L.) Merr.] injury. Cultivation 1 or 7 days after herbicide application increased the efficacy of HOE 29152 on quackgrass. Due to abundant moisture in 1977, untreated quackgrass-infested plots yielded as much as the weed-free plots. However, in 1976, a very dry year, the control of quackgrass with HOE 29152 resulted in greatly increased soybean yields. In greenhouse studies, postemergence applications of HOE 29152 at rates of 0.56 to 3.36 kg/ha effectively killed rhizome buds and reduced shoot dry weights of quackgrass. The phytotoxicity of HOE 29152 at 0.56 kg/ha was less at a postspray temperature of 36 C than at 17 or 27 C; however, the phytotoxicity of HOE 29152 at rates of 1.68 and 3.36 kg/ha was similar at all three temperatures. HOE 29152 can volatilize from soybean leaves, with volatility greater at 38 C than at 21 C. Postemergence applications injured soybeans similarly in field and growth chamber studies. Injury was observed only on leaves that were expanded at time of treatment, was short-term, and was most prevalent at 3.36 kg/ha.
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Claims 14
Claim · model-written summary
HOE 29152 controlled quackgrass at the one- to three-leaf stage.
- Taxon
- Glycine max
Glycine maxt0 - Treatment
- HOE 29152e0
- Interactor
- Agropyron repens
Elymus repense0weed - Outcome
- quackgrasse0
- Direction
- controllede0
- Qualifier
- one- to three-leaf stagee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“postemergence applications of HOE 29152 {2-[4-(trifluoromethyl phenoxy)phenoxy] propanoate} at rates of 1.68 to 3.36 kg/ha effectively controlled quackgrass [ Agropyron repens (L.) Beauv.] when applied to plants in the one- to three-leaf stage”
t0“Soybeans (Glycine max)”
Claim · model-written summary
Quackgrass control remained effective the following year.
- Taxon
- Glycine maxGlycine maxt0
- Outcome
- Controle0
- Qualifier
- the following yeare0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Control was still effective the following year”
t0“Soybeans (Glycine max)”
Claim · model-written summary
Surfactant addition did not increase quackgrass control.
- Taxon
- Glycine maxGlycine maxt0
- Treatment
- The addition of a surfactant to HOE 29152e0
- Interactor
- quackgrasse0weed
- Outcome
- quackgrass controle0
- Direction
- did not increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The addition of a surfactant to HOE 29152 did not increase quackgrass control”
t0“Soybeans (Glycine max)”
Claim · model-written summary
Surfactant addition increased soybean injury.
- Taxon
- soybeanGlycine maxe0
- Outcome
- injurye0
- Direction
- increasee0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it did increase soybean [ Glycine max (L.) Merr.] injury”
Claim · model-written summary
Cultivation after herbicide application increased efficacy against quackgrass.
- Taxon
- Glycine maxGlycine maxt0
- Treatment
- Cultivation 1 or 7 days after herbicide applicatione0
- Interactor
- quackgrasse0weed
- Outcome
- efficacy of HOE 29152 on quackgrasse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cultivation 1 or 7 days after herbicide application increased the efficacy of HOE 29152 on quackgrass”
t0“Soybeans (Glycine max)”
Claim · model-written summary
Untreated infested plots yielded as much as weed-free plots in moist 1977.
- Taxon
- Glycine maxGlycine maxt0
- Interactor
- quackgrasse0weed
- Outcome
- yieldede0
- Direction
- as much ase0
- Qualifier
- abundant moisture in 1977e0
- Comparator
- weed-free plotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Due to abundant moisture in 1977, untreated quackgrass-infested plots yielded as much as the weed-free plots”
t0“Soybeans (Glycine max)”
Claim · model-written summary
Quackgrass control with HOE 29152 greatly increased soybean yields in dry 1976.
- Taxon
- soybeanGlycine maxe0
- Treatment
- HOE 29152e0
- Interactor
- quackgrasse0weed
- Outcome
- soybean yieldse0
- Direction
- increasede0
- Qualifier
- in 1976, a very dry yeare0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in 1976, a very dry year, the control of quackgrass with HOE 29152 resulted in greatly increased soybean yields”
Claim · model-written summary
Greenhouse applications killed quackgrass rhizome buds.
- Taxon
- Glycine maxGlycine maxt0
- Treatment
- HOE 29152 at rates of 0.56 to 3.36 kg/hae0
- Interactor
- quackgrasse0weed
- Outcome
- rhizome budse0
- Setting
- greenhousee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In greenhouse studies, postemergence applications of HOE 29152 at rates of 0.56 to 3.36 kg/ha effectively killed rhizome buds and reduced shoot dry weights of quackgrass”
t0“Soybeans (Glycine max)”
Claim · model-written summary
Greenhouse applications reduced quackgrass shoot dry weight.
- Taxon
- Glycine maxGlycine maxt0
- Treatment
- HOE 29152 at rates of 0.56 to 3.36 kg/hae0
- Interactor
- quackgrasse0weed
- Outcome
- shoot dry weights of quackgrasse0
- Direction
- reducede0
- Setting
- greenhousee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In greenhouse studies, postemergence applications of HOE 29152 at rates of 0.56 to 3.36 kg/ha effectively killed rhizome buds and reduced shoot dry weights of quackgrass”
t0“Soybeans (Glycine max)”
Claim · model-written summary
At 0.56 kg/ha, phytotoxicity was lower at 36 C than at 17 or 27 C.
- Taxon
- Glycine maxGlycine maxt0
- Treatment
- HOE 29152 at 0.56 kg/hae0
- Outcome
- phytotoxicitye0
- Direction
- lesse0
- Comparator
- 17 or 27 Ce0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The phytotoxicity of HOE 29152 at 0.56 kg/ha was less at a postspray temperature of 36 C than at 17 or 27 C”
t0“Soybeans (Glycine max)”
Claim · model-written summary
At 1.68 and 3.36 kg/ha, phytotoxicity was similar across three temperatures.
- Taxon
- Glycine maxGlycine maxt0
- Treatment
- HOE 29152 at rates of 1.68 and 3.36 kg/hae0
- Outcome
- phytotoxicitye0
- Direction
- similare0
- Qualifier
- all three temperaturese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the phytotoxicity of HOE 29152 at rates of 1.68 and 3.36 kg/ha was similar at all three temperatures”
t0“Soybeans (Glycine max)”
Claim · model-written summary
HOE 29152 volatilized from soybean leaves more at 38 C than at 21 C.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“HOE 29152 can volatilize from soybean leaves, with volatility greater at 38 C than at 21 C”
Claim · model-written summary
Postemergence applications injured soybeans similarly in field and growth chamber studies.
- Taxon
- soybeansGlycine maxe0
- Outcome
- injured soybeanse0
- Direction
- similarlye0
- Setting
- field and growth chamber studiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Postemergence applications injured soybeans similarly in field and growth chamber studies”
Claim · model-written summary
Injury was confined to leaves expanded at treatment and was short-term and most prevalent at 3.36 kg/ha.
- Taxon
- Glycine maxGlycine maxt0
- Organ / stage
- leavese0
- Treatment
- 3.36 kg/hae0
- Outcome
- Injurye0
- Direction
- most prevalente0
- Qualifier
- expanded at time of treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Injury was observed only on leaves that were expanded at time of treatment, was short-term, and was most prevalent at 3.36 kg/ha”
t0“Soybeans (Glycine max)”
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See all 123 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.