Abstract
The absorption of 14 C-bentazon and 14 C-acifluorfen by individual leaves of velvetleaf was measured from the cotyledons to the most recently developed leaf in plants that had developed seven leaves beyond the cotyledons. Herbicide absorption 1 min after application was greatly enhanced by the organosilicone adjuvant Sylgard 309 explaining previously observed enhanced efficacy and rainfastness by this adjuvant. 14 C-herbicide absorption was greatest by the cotyledons and decreased upward to the most recently developed leaf. Absorption of the 14 C-Sylgard 309 was similar to that of the 14 C-labelled herbicides and was not related to the number of stomata or leaf area covered by the spray droplets. These results are consistent with the hypothesis that the mode of action of Sylgard 309 is to enhance cuticular absorption and not stomatal infiltration.
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Claims 5
Claim · model-written summary
Sylgard 309 greatly enhanced herbicide absorption one minute after application.
- Taxon
- velvetleaf
Abutilon theophrastie1 - Treatment
- organosilicone adjuvant Sylgard 309e0
- Outcome
- Herbicide absorptione0
- Direction
- greatly enhancede0
- Qualifier
- 1 min after applicatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Herbicide absorption 1 min after application was greatly enhanced by the organosilicone adjuvant Sylgard 309”
e1“The absorption of 14 C-bentazon and 14 C-acifluorfen by individual leaves of velvetleaf was measured from the cotyledons to the most recently developed leaf in plants that had developed seven leaves beyond the cotyledons.”
Claim · model-written summary
Radiolabelled herbicide absorption was greatest in cotyledons and declined toward the youngest leaf.
- Taxon
- velvetleafAbutilon theophrastie1
- Organ / stage
- cotyledonse0
- Outcome
- 14 C-herbicide absorptione0
- Direction
- decreasede0
- Comparator
- most recently developed leafe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“14 C-herbicide absorption was greatest by the cotyledons and decreased upward to the most recently developed leaf.”
e1“The absorption of 14 C-bentazon and 14 C-acifluorfen by individual leaves of velvetleaf was measured from the cotyledons to the most recently developed leaf in plants that had developed seven leaves beyond the cotyledons.”
Claim · model-written summary
Sylgard 309 absorption resembled herbicide absorption.
- Taxon
- velvetleafAbutilon theophrastie1
- Outcome
- Absorption of the 14 C-Sylgard 309e0
- Direction
- similare0
- Comparator
- 14 C-labelled herbicidese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Absorption of the 14 C-Sylgard 309 was similar to that of the 14 C-labelled herbicides”
e1“The absorption of 14 C-bentazon and 14 C-acifluorfen by individual leaves of velvetleaf was measured from the cotyledons to the most recently developed leaf in plants that had developed seven leaves beyond the cotyledons.”
Claim · model-written summary
Sylgard 309 absorption was unrelated to stomatal count or spray droplet leaf coverage.
- Taxon
- velvetleafAbutilon theophrastie1
- Organ / stage
- stomatae0
- Outcome
- number of stomata or leaf area covered by the spray dropletse0
- Direction
- not relatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“was not related to the number of stomata or leaf area covered by the spray droplets.”
e1“The absorption of 14 C-bentazon and 14 C-acifluorfen by individual leaves of velvetleaf was measured from the cotyledons to the most recently developed leaf in plants that had developed seven leaves beyond the cotyledons.”
Claim · model-written summary
The authors interpret Sylgard 309 as enhancing cuticular absorption rather than stomatal infiltration.
- Taxon
- velvetleafAbutilon theophrastie1
- Treatment
- Sylgard 309e0
- Outcome
- cuticular absorptione0
- Qualifier
- not stomatal infiltratione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These results are consistent with the hypothesis that the mode of action of Sylgard 309 is to enhance cuticular absorption and not stomatal infiltration.”
e1“The absorption of 14 C-bentazon and 14 C-acifluorfen by individual leaves of velvetleaf was measured from the cotyledons to the most recently developed leaf in plants that had developed seven leaves beyond the cotyledons.”
The same questions in other papers
adjuvant · nutrient: content · Abutilon theophrasti (velvetleaf)Results agree
2 papers in the same direction as this paper
- positive
- positive
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.