Abstract
The potential of imazethapyr as a selective herbicide in four pulse crops was investigated at Melfort, Saskatchewan in 1988 and 1989. Lentil, field pea, faba bean and annual vetch were tolerant to imazethapyr applied preemergence to a silty clay loam soil at 0.05, 0.10, 0.15, and 0.20 kg ai ha -1 . Postemergence treatments above 0.05 kg ha -1 , however, stunted lentil and vetch in both years. Environmental factors, the dominant weed in the experimental site, as well as timing of application strongly influenced the performance of imazethapyr. Seed yield increases observed with imazethapyr treatments, compared to metribuzin or untreated check, were greater in 1989 when wild oat was the dominant weed and moisture was not a limiting factor in the early stages of crop development, than in 1988 when field pennycress was the dominant weed. Mean seed yield for all imazethapyr treatments, compared to the check, increased 0 and 930%, 24 and 89%, 21 and 600%, and 47 and 44% in 1988 and 1989, for lentil, field pea, faba bean and vetch, respectively. Significant increases in lentil seed density, seed size, and germination were also obtained though protein content decreased 2%.
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Claims 14
Claim · model-written summary
Lentil was tolerant to preemergence imazethapyr.
- Taxon
- Lentil
Lens culinarise1 - Treatment
- imazethapyr applied preemergencee1
- Outcome
- tolerante1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Lentil, field pea, faba bean and annual vetch were tolerant to imazethapyr applied preemergence to a silty clay loam soil at 0.05, 0.10, 0.15, and 0.20 kg ai ha -1”
Claim · model-written summary
Field pea was tolerant to preemergence imazethapyr.
Not reportedComparatorDirection
Verbatim
e1“Lentil, field pea, faba bean and annual vetch were tolerant to imazethapyr applied preemergence to a silty clay loam soil at 0.05, 0.10, 0.15, and 0.20 kg ai ha -1”
Claim · model-written summary
Faba bean was tolerant to preemergence imazethapyr.
- Taxon
- faba bean
Vicia fabae1 - Treatment
- imazethapyr applied preemergencee1
- Outcome
- tolerante1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Lentil, field pea, faba bean and annual vetch were tolerant to imazethapyr applied preemergence to a silty clay loam soil at 0.05, 0.10, 0.15, and 0.20 kg ai ha -1”
Claim · model-written summary
Annual vetch was tolerant to preemergence imazethapyr.
Not reportedComparatorDirection
Verbatim
e1“Lentil, field pea, faba bean and annual vetch were tolerant to imazethapyr applied preemergence to a silty clay loam soil at 0.05, 0.10, 0.15, and 0.20 kg ai ha -1”
Claim · model-written summary
Postemergence imazethapyr above 0.05 kg ha-1 stunted lentil.
- Taxon
- lentilLens culinarise2
- Treatment
- Postemergence treatments above 0.05 kg ha -1e2
- Outcome
- stuntede2
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Postemergence treatments above 0.05 kg ha -1 , however, stunted lentil and vetch in both years”
Claim · model-written summary
Postemergence imazethapyr above 0.05 kg ha-1 stunted vetch.
Not reportedComparatorDirection
Verbatim
e2“Postemergence treatments above 0.05 kg ha -1 , however, stunted lentil and vetch in both years”
Claim · model-written summary
Imazethapyr seed yield increases over metribuzin or the untreated check were greater in 1989, with wild oat dominant, than in 1988, with field pennycress dominant.
- Taxon
- Pulse Cropst0
- Treatment
- imazethapyr treatmentse3
- Interactor
- wild oate3weed
- Second interactor
- field pennycress
_-_Guelph%2C_Ontario_2020-04-12.jpg?width=60)
Thlaspi arvensee3weed - Outcome
- Seed yield increasese3
- Direction
- greatere3
- Qualifier
- than in 1988e3
- Comparator
- metribuzin or untreated checke3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_-_Guelph%2C_Ontario_2020-04-12.jpg?width=500)
Verbatim
t0“Performance of Imazethapyr on Pulse Crops”
e3“Seed yield increases observed with imazethapyr treatments, compared to metribuzin or untreated check, were greater in 1989 when wild oat was the dominant weed and moisture was not a limiting factor in the early stages of crop development, than in 1988 when field pennycress was the dominant weed”
Claim · model-written summary
Imazethapyr increased mean seed yield of lentil by 0% in 1988 and 930% in 1989 over the check.
- Taxon
- lentilLens culinarise4
- Treatment
- imazethapyr treatmentse4
- Outcome
- Mean seed yielde4
- Direction
- increasede4
- Value
- 0 and 930%e4
- Qualifier
- in 1988 and 1989e4
- Comparator
- the checke4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Mean seed yield for all imazethapyr treatments, compared to the check, increased 0 and 930%, 24 and 89%, 21 and 600%, and 47 and 44% in 1988 and 1989, for lentil, field pea, faba bean and vetch, respectively”
Claim · model-written summary
Imazethapyr increased mean seed yield of field pea by 24% in 1988 and 89% in 1989 over the check.
Verbatim
e4“Mean seed yield for all imazethapyr treatments, compared to the check, increased 0 and 930%, 24 and 89%, 21 and 600%, and 47 and 44% in 1988 and 1989, for lentil, field pea, faba bean and vetch, respectively”
Claim · model-written summary
Imazethapyr increased mean seed yield of faba bean by 21% in 1988 and 600% in 1989 over the check.
- Taxon
- faba beanVicia fabae4
- Treatment
- imazethapyr treatmentse4
- Outcome
- Mean seed yielde4
- Direction
- increasede4
- Value
- 21 and 600%e4
- Qualifier
- in 1988 and 1989e4
- Comparator
- the checke4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Mean seed yield for all imazethapyr treatments, compared to the check, increased 0 and 930%, 24 and 89%, 21 and 600%, and 47 and 44% in 1988 and 1989, for lentil, field pea, faba bean and vetch, respectively”
Claim · model-written summary
Imazethapyr increased mean seed yield of vetch by 47% in 1988 and 44% in 1989 over the check.
Verbatim
e4“Mean seed yield for all imazethapyr treatments, compared to the check, increased 0 and 930%, 24 and 89%, 21 and 600%, and 47 and 44% in 1988 and 1989, for lentil, field pea, faba bean and vetch, respectively”
Claim · model-written summary
Imazethapyr significantly increased lentil seed density, seed size and germination over the check.
- Taxon
- lentilLens culinarise5
- Treatment
- imazethapyr treatmentse4
- Outcome
- seed density, seed size, and germinatione5
- Direction
- increasese5
- Comparator
- the checke4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Significant increases in lentil seed density, seed size, and germination were also obtained though protein content decreased 2%”
e4“Mean seed yield for all imazethapyr treatments, compared to the check, increased 0 and 930%, 24 and 89%, 21 and 600%, and 47 and 44% in 1988 and 1989, for lentil, field pea, faba bean and vetch, respectively”
Claim · model-written summary
Imazethapyr treatments decreased lentil protein content by 2%.
- Taxon
- lentilLens culinarise5
- Treatment
- imazethapyr treatmentse4
- Outcome
- protein contente5
- Direction
- decreasede5
- Value
- 2%e5
- Comparator
- the checke4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Significant increases in lentil seed density, seed size, and germination were also obtained though protein content decreased 2%”
e4“Mean seed yield for all imazethapyr treatments, compared to the check, increased 0 and 930%, 24 and 89%, 21 and 600%, and 47 and 44% in 1988 and 1989, for lentil, field pea, faba bean and vetch, respectively”
Claim · model-written summary
Environmental factors, the dominant weed and timing of application strongly influenced the performance of imazethapyr in pulse crops.
- Taxon
- Pulse Cropst0
- Treatment
- timing of applicatione6
- Interactor
- dominant weede6weed
- Outcome
- performance of imazethapyre6
Not reportedDirection
Verbatim
t0“Performance of Imazethapyr on Pulse Crops”
e6“Environmental factors, the dominant weed in the experimental site, as well as timing of application strongly influenced the performance of imazethapyr”
The same questions in other papers
Imazethapyr · yield · Vicia faba (faba bean)Results differ
2 papers in the same direction as this paper · 2 in the opposite direction
- negative
- no effect
- positive
1 paper more in this group
See all 5 papers →Imazethapyr · yield · Lathyrus oleraceus (pea)Results differ
10 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
8 papers more in this group
See all 12 papers →Imazethapyr · yield · Lens culinaris (lentil)Positive and negative results
14 papers in the same direction as this paper · 2 in the opposite direction · 1 reporting no difference from an alternative
- positive
- negative
- negative
14 papers more in this group
See all 18 papers →herbicide · disease · Lathyrus oleraceus (pea)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
herbicide · disease · Lens culinaris (lentil)Results agree
1 paper in the same direction as this paper
- positive
herbicide · disease · Vicia faba (faba bean)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.