Abstract
Field experiments were conducted over a 4-yr period, 1989 to 1992, in southern Manitoba to investigate potato (5. tuberosum) response to simulated drift of the dimethylamine salt of dicamba, 2.8 to 22.2 g ai ha –1 ; alkanolamine salt of clopyralid, 4 to 32 g ai ha –1 ; and tribenuron, 0.15 to 1.2 g ai ha –1 . Rate ranges investigated corresponded to 2 to 16% of the recommended field rate for each herbicide. Dicamba at 22.2 g ai ha –1 , clopyralid at 32 g ai ha –1 , and tribenuron at 1.2 g ai ha –1 reduced total tuber yields 40, 29, and 41%, respectively, and marketable yields 74, 75, and 53%, respectively. Average weight of marketable-size tubers was unaffected by any treatment in any year. No tuber malformations were observed. Tubers produced on treated plants were planted the year following treatment to investigate the effects of simulated drift on subsequent tuber regrowth. Injury symptoms were evident for each herbicide in 2 out of 3 yr, but neither total nor marketable yields were affected.
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Claims 10
Claim · model-written summary
Dicamba at 22.2 g ai ha –1 reduced total tuber yield by 40%.
- Taxon
- potato (5. tuberosum)
Solanum tuberosume0 - Treatment
- Dicamba at 22.2 g ai ha –1e1
- Outcome
- total tuber yieldse1
- Direction
- reducede1
- Value
- 40e1
- Setting
- southern Manitobae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Field experiments were conducted over a 4-yr period, 1989 to 1992, in southern Manitoba to investigate potato (5. tuberosum) response to simulated drift of the dimethylamine salt of dicamba”
e1“Dicamba at 22.2 g ai ha –1 , clopyralid at 32 g ai ha –1 , and tribenuron at 1.2 g ai ha –1 reduced total tuber yields 40, 29, and 41%, respectively, and marketable yields 74, 75, and 53%, respectively”
Claim · model-written summary
Clopyralid at 32 g ai ha –1 reduced total tuber yield by 29%.
- Taxon
- potato (5. tuberosum)Solanum tuberosume0
- Treatment
- clopyralid at 32 g ai ha –1e1
- Outcome
- total tuber yieldse1
- Direction
- reducede1
- Value
- 29e1
- Setting
- southern Manitobae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Field experiments were conducted over a 4-yr period, 1989 to 1992, in southern Manitoba to investigate potato (5. tuberosum) response to simulated drift of the dimethylamine salt of dicamba”
e1“Dicamba at 22.2 g ai ha –1 , clopyralid at 32 g ai ha –1 , and tribenuron at 1.2 g ai ha –1 reduced total tuber yields 40, 29, and 41%, respectively, and marketable yields 74, 75, and 53%, respectively”
Claim · model-written summary
Tribenuron at 1.2 g ai ha –1 reduced total tuber yield by 41%.
- Taxon
- potato (5. tuberosum)Solanum tuberosume0
- Treatment
- tribenuron at 1.2 g ai ha –1e1
- Outcome
- total tuber yieldse1
- Direction
- reducede1
- Value
- 41e1
- Setting
- southern Manitobae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Field experiments were conducted over a 4-yr period, 1989 to 1992, in southern Manitoba to investigate potato (5. tuberosum) response to simulated drift of the dimethylamine salt of dicamba”
e1“Dicamba at 22.2 g ai ha –1 , clopyralid at 32 g ai ha –1 , and tribenuron at 1.2 g ai ha –1 reduced total tuber yields 40, 29, and 41%, respectively, and marketable yields 74, 75, and 53%, respectively”
Claim · model-written summary
Dicamba at 22.2 g ai ha –1 reduced marketable yield by 74%.
- Taxon
- potato (5. tuberosum)Solanum tuberosume0
- Treatment
- Dicamba at 22.2 g ai ha –1e1
- Outcome
- marketable yieldse1
- Direction
- reducede1
- Value
- 74e1
- Setting
- southern Manitobae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Field experiments were conducted over a 4-yr period, 1989 to 1992, in southern Manitoba to investigate potato (5. tuberosum) response to simulated drift of the dimethylamine salt of dicamba”
e1“Dicamba at 22.2 g ai ha –1 , clopyralid at 32 g ai ha –1 , and tribenuron at 1.2 g ai ha –1 reduced total tuber yields 40, 29, and 41%, respectively, and marketable yields 74, 75, and 53%, respectively”
Claim · model-written summary
Clopyralid at 32 g ai ha –1 reduced marketable yield by 75%.
- Taxon
- potato (5. tuberosum)Solanum tuberosume0
- Treatment
- clopyralid at 32 g ai ha –1e1
- Outcome
- marketable yieldse1
- Direction
- reducede1
- Value
- 75e1
- Setting
- southern Manitobae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Field experiments were conducted over a 4-yr period, 1989 to 1992, in southern Manitoba to investigate potato (5. tuberosum) response to simulated drift of the dimethylamine salt of dicamba”
e1“Dicamba at 22.2 g ai ha –1 , clopyralid at 32 g ai ha –1 , and tribenuron at 1.2 g ai ha –1 reduced total tuber yields 40, 29, and 41%, respectively, and marketable yields 74, 75, and 53%, respectively”
Claim · model-written summary
Tribenuron at 1.2 g ai ha –1 reduced marketable yield by 53%.
- Taxon
- potato (5. tuberosum)Solanum tuberosume0
- Treatment
- tribenuron at 1.2 g ai ha –1e1
- Outcome
- marketable yieldse1
- Direction
- reducede1
- Value
- 53e1
- Setting
- southern Manitobae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Field experiments were conducted over a 4-yr period, 1989 to 1992, in southern Manitoba to investigate potato (5. tuberosum) response to simulated drift of the dimethylamine salt of dicamba”
e1“Dicamba at 22.2 g ai ha –1 , clopyralid at 32 g ai ha –1 , and tribenuron at 1.2 g ai ha –1 reduced total tuber yields 40, 29, and 41%, respectively, and marketable yields 74, 75, and 53%, respectively”
Claim · model-written summary
Average weight of marketable-size tubers was unaffected by any simulated drift treatment.
- Taxon
- potato (5. tuberosum)Solanum tuberosume0
- Treatment
- simulated drifte0
- Outcome
- Average weight of marketable-size tuberse2
- Direction
- unaffectede2
- Setting
- southern Manitobae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Field experiments were conducted over a 4-yr period, 1989 to 1992, in southern Manitoba to investigate potato (5. tuberosum) response to simulated drift of the dimethylamine salt of dicamba”
e2“Average weight of marketable-size tubers was unaffected by any treatment in any year”
Claim · model-written summary
No tuber malformations were observed.
- Taxon
- potato (5. tuberosum)Solanum tuberosume0
- Outcome
- tuber malformationse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Field experiments were conducted over a 4-yr period, 1989 to 1992, in southern Manitoba to investigate potato (5. tuberosum) response to simulated drift of the dimethylamine salt of dicamba”
e3“No tuber malformations were observed”
Claim · model-written summary
Injury symptoms from each herbicide were evident in 2 of 3 years.
- Taxon
- potato (5. tuberosum)Solanum tuberosume0
- Treatment
- each herbicidee4
- Outcome
- Injury symptomse4
- Setting
- southern Manitobae0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Field experiments were conducted over a 4-yr period, 1989 to 1992, in southern Manitoba to investigate potato (5. tuberosum) response to simulated drift of the dimethylamine salt of dicamba”
e4“Injury symptoms were evident for each herbicide in 2 out of 3 yr, but neither total nor marketable yields were affected”
Claim · model-written summary
Total and marketable yields of tubers regrown from treated plants were not affected.
- Taxon
- potato (5. tuberosum)Solanum tuberosume0
- Treatment
- each herbicidee4
- Outcome
- total nor marketable yieldse4
- Direction
- were affectede4
- Setting
- southern Manitobae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Field experiments were conducted over a 4-yr period, 1989 to 1992, in southern Manitoba to investigate potato (5. tuberosum) response to simulated drift of the dimethylamine salt of dicamba”
e4“Injury symptoms were evident for each herbicide in 2 out of 3 yr, but neither total nor marketable yields were affected”
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