Abstract
The release of 3-amino-2,5-dichlorobenzoic acid (amiben), 2-chloro-4-(ethylamino)-6-(isopropylamino)- s -triazine (atrazine), isopropyl m -chlorocarbanilate (chlorpropham), S-ethyl dipropylthiocarbamate (EPTC), and 3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea (linuron) from excised soybean ( Glycine max (L) Merr., var. Chippewa) roots following uptake of the herbicides from solutions for 1 hr was studied. Rates of release of herbicides into water were rapid with at least 30% of that taken up being released during the first 30 min. Herbicide X time and herbicide X concentration interactions were highly significant. In most instances, slow release continued for 4 hr, which was the duration of the experiment. Use of herbicide or nutrient solutions as release solutions did not significantly change the amounts of herbicides released. It was concluded that herbicide molecules released after 1 hr uptake were those that had diffused out from free space rather than those released from uptake or adsorptive sites.
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Claims 7
Claim · model-written summary
Soybean roots rapidly released at least 30% of absorbed herbicide during the first 30 minutes.
- Taxon
- soybean
Glycine maxe0 - Material
- Chippewae0
- Organ / stage
- rootse0
- Outcome
- Rates of release of herbicides into watere1
- Direction
- rapide1
- Value
- at least 30%e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“excised soybean ( Glycine max (L) Merr., var. Chippewa) roots”
e1“Rates of release of herbicides into water were rapid with at least 30% of that taken up being released during the first 30 min.”
Claim · model-written summary
Herbicide identity interacted significantly with time in release from soybean roots.
- Taxon
- soybeanGlycine maxe0
- Treatment
- Herbicidee1
- Outcome
- Herbicide X timee1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“excised soybean ( Glycine max (L) Merr., var. Chippewa) roots”
e1“Herbicide X time and herbicide X concentration interactions were highly significant.”
Claim · model-written summary
Herbicide identity interacted significantly with concentration in release from soybean roots.
- Taxon
- soybeanGlycine maxe0
- Treatment
- herbicidee1
- Outcome
- herbicide X concentration interactionse1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“excised soybean ( Glycine max (L) Merr., var. Chippewa) roots”
e1“Herbicide X time and herbicide X concentration interactions were highly significant.”
Claim · model-written summary
In most cases, soybean roots continued to release herbicide slowly for four hours.
- Taxon
- soybeanGlycine maxe0
- Outcome
- slow releasee1
- Direction
- continuede1
- Value
- 4 hre1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“excised soybean ( Glycine max (L) Merr., var. Chippewa) roots”
e1“In most instances, slow release continued for 4 hr, which was the duration of the experiment.”
Claim · model-written summary
Herbicide solutions as release media did not significantly change the amount released.
- Taxon
- soybeanGlycine maxe0
- Treatment
- herbicidee1
- Outcome
- amounts of herbicides releasede1
- Direction
- did not significantly changee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“excised soybean ( Glycine max (L) Merr., var. Chippewa) roots”
e1“Use of herbicide or nutrient solutions as release solutions did not significantly change the amounts of herbicides released.”
Claim · model-written summary
Nutrient solutions as release media did not significantly change the amount released.
- Taxon
- soybeanGlycine maxe0
- Treatment
- nutrient solutionse1
- Outcome
- amounts of herbicides releasede1
- Direction
- did not significantly changee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“excised soybean ( Glycine max (L) Merr., var. Chippewa) roots”
e1“Use of herbicide or nutrient solutions as release solutions did not significantly change the amounts of herbicides released.”
Claim · model-written summary
The authors infer that released herbicide diffused from root free space rather than uptake or adsorption sites.
- Taxon
- soybeanGlycine maxe0
- Outcome
- herbicide molecules released after 1 hr uptakee1
- Qualifier
- diffused out from free space rather than those released from uptake or adsorptive sitese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soybean ( Glycine max (L) Merr., var. Chippewa) roots”
e1“herbicide molecules released after 1 hr uptake were those that had diffused out from free space rather than those released from uptake or adsorptive sites.”
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See all 87 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.