Abstract
Field experiments were conducted in 1996 and 1997 at five locations in southwestern Ontario to develop dose-response curves for SAN 1269H (SAN 835H plus dicamba) for weed control and crop tolerance in corn. SAN 1269H controlled wild buckwheat ( Polygonum convolvulus L.), common ragweed ( Ambrosia artemisiifolia L.), common lambsquarters ( Chenopodium album L.), pigweeds ( Amaranthus retroflexus L. and A. powellii S. Wats.), barnyardgrass [ Echinochloa crus-galli (L.) Beauv.], and yellow foxtail [ Setaria glauca (L.) Beauv.]. Biologically effective doses of SAN 1269H (BAS 662H) were 440, 430, 180, and 40 g/ha for yellow foxtail, barnyard grass, wild buckwheat, and common ragweed, respectively. The biologically effective dose (that which provides 90% reduction in weed dry matter) for common lambsquarters was 560 g/ha when SAN 1269H was applied preemergence (PRE) and 110 g/ha when applied postemergence (POST). When applied PRE at a rate of 420 g/ha, pigweed was controlled, whereas only 85 g/ha was required when applied POST. Grain yield increased with dose of SAN 1269H and did not differ with time of application. Temporary crop injury was observed when SAN 1269H was applied at the four- to six-leaf growth stage. Optimum corn yields were achieved with doses of 100 to 250 g/ha.
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Claims 12
Claim · model-written summary
SAN 1269H controlled yellow foxtail at a biologically effective dose of 440 g/ha.
- Taxon
- Corn
Zea mays subsp. mayst0 - Treatment
- SAN 1269He0
- Interactor
- yellow foxtail
Setaria pumilae0weed - Outcome
- yellow foxtaile0
- Value
- 440e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Biologically effective doses of SAN 1269H (BAS 662H) were 440, 430, 180, and 40 g/ha for yellow foxtail, barnyard grass, wild buckwheat, and common ragweed, respectively”
t0“Corn (Zea mays)”
Claim · model-written summary
SAN 1269H controlled barnyard grass at a biologically effective dose of 430 g/ha.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- SAN 1269He0
- Interactor
- barnyard grass
Echinochloa crus-gallie0weed - Outcome
- barnyard grasse0
- Value
- 430e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Biologically effective doses of SAN 1269H (BAS 662H) were 440, 430, 180, and 40 g/ha for yellow foxtail, barnyard grass, wild buckwheat, and common ragweed, respectively”
t0“Corn (Zea mays)”
Claim · model-written summary
SAN 1269H controlled wild buckwheat at a biologically effective dose of 180 g/ha.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- SAN 1269He0
- Interactor
- wild buckwheat
Fallopia convolvuluse0weed - Outcome
- wild buckwheate0
- Value
- 180e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Biologically effective doses of SAN 1269H (BAS 662H) were 440, 430, 180, and 40 g/ha for yellow foxtail, barnyard grass, wild buckwheat, and common ragweed, respectively”
t0“Corn (Zea mays)”
Claim · model-written summary
SAN 1269H controlled common ragweed at a biologically effective dose of 40 g/ha.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- SAN 1269He0
- Interactor
- common ragweed
Ambrosia artemisiifoliae0weed - Outcome
- common ragweede0
- Value
- 40 g/hae0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Biologically effective doses of SAN 1269H (BAS 662H) were 440, 430, 180, and 40 g/ha for yellow foxtail, barnyard grass, wild buckwheat, and common ragweed, respectively”
t0“Corn (Zea mays)”
Claim · model-written summary
PRE SAN 1269H required 560 g/ha for 90% reduction of common lambsquarters dry matter.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- SAN 1269H was applied preemergence (PRE)e0
- Interactor
- common lambsquarters
Chenopodium albume0weed - Outcome
- common lambsquarterse0
- Direction
- reductione0
- Value
- 560 g/hae0
- Comparator
- postemergence (POST)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The biologically effective dose (that which provides 90% reduction in weed dry matter) for common lambsquarters was 560 g/ha when SAN 1269H was applied preemergence (PRE) and 110 g/ha when applied postemergence (POST)”
t0“Corn (Zea mays)”
Claim · model-written summary
POST SAN 1269H required 110 g/ha for 90% reduction of common lambsquarters dry matter.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- SAN 1269He0
- Interactor
- common lambsquartersChenopodium albume0weed
- Outcome
- common lambsquarterse0
- Direction
- reductione0
- Value
- 110 g/hae0
- Comparator
- preemergence (PRE)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The biologically effective dose (that which provides 90% reduction in weed dry matter) for common lambsquarters was 560 g/ha when SAN 1269H was applied preemergence (PRE) and 110 g/ha when applied postemergence (POST)”
t0“Corn (Zea mays)”
Claim · model-written summary
PRE SAN 1269H at 420 g/ha controlled pigweed.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- applied PRE at a rate of 420 g/hae0
- Interactor
- pigweede0weed
- Outcome
- pigweede0
- Direction
- controllede0
- Value
- 420 g/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When applied PRE at a rate of 420 g/ha, pigweed was controlled”
e1“SAN 1269H was applied preemergence (PRE)”
t0“Corn (Zea mays)”
Claim · model-written summary
POST SAN 1269H at 85 g/ha controlled pigweed.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- applied POSTe0
- Interactor
- pigweede1weed
- Outcome
- pigweede1
- Direction
- controllede1
- Value
- 85 g/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“only 85 g/ha was required when applied POST”
e1“pigweed was controlled”
e2“dose of SAN 1269H”
t0“Corn (Zea mays)”
Claim · model-written summary
Corn grain yield increased with SAN 1269H dose.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- SAN 1269He0
- Outcome
- Grain yielde0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grain yield increased with dose of SAN 1269H”
t0“Corn (Zea mays)”
Claim · model-written summary
Corn grain yield did not differ by application time.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- time of applicatione0
- Outcome
- Grain yielde0
- Direction
- did not differe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grain yield increased with dose of SAN 1269H and did not differ with time of application”
t0“Corn (Zea mays)”
Claim · model-written summary
Applying SAN 1269H at the four- to six-leaf stage caused temporary corn injury.
- Taxon
- CornZea mays subsp. mayst0
- Organ / stage
- four- to six-leaf growth stagee0
- Treatment
- SAN 1269H was applied at the four- to six-leaf growth stagee0
- Outcome
- Temporary crop injurye0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Temporary crop injury was observed when SAN 1269H was applied at the four- to six-leaf growth stage”
t0“Corn (Zea mays)”
Claim · model-written summary
Optimum corn yields occurred at SAN 1269H doses of 100 to 250 g/ha.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- SAN 1269He1
- Outcome
- corn yieldse0
- Direction
- Optimume0
- Value
- 100 to 250 g/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Optimum corn yields were achieved with doses of 100 to 250 g/ha”
e1“dose of SAN 1269H”
The same questions in other papers
herbicide · Chenopodium album · Zea mays (maize)Positive and negative results
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- negative
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3 papers in the same direction as this paper
- negative
- no effect
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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.