Abstract
The response of wild oat (Avena fatua) to diclofop-methyl and CGA 184′927+S under conditions of water stress was assessed in a pot experiment. Treatments with 0, 8, 16 and 24% polyethylene glycol (PEG 6000) were used to impose water stress. The water stress treatments were initiated when the plants reached the two-leaf stage and continued for seven days prior to and two days after the herbicides were applied. Leaf extension rate was the most sensitive plant parameter to water stress and was decreased by all water stress treatments. Stomatal diffusive resistance of wild oat. Leaves was increased significantly by the 16 and 24% PEG treatments. These water stress treatments caused a reduction in the response of wild oat to diclofopmethyl as illustrated by a continuation of the leaf extension rate during the first week after spraying. The survival and seedhead production of diclofop-methyl-sprayed plants were greatest at the highest water stress level (24% PEG). Water stress did not affect the efficacy of CGA 184′927+S on wild oat. The leaf expansion of plants sprayed with this herbicide stopped within four days after spraying and all plants died within 35 days, irrespective of the water stress level imposed.
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Claims 8
Claim · model-written summary
Water stress decreased wild oat leaf extension rate at all tested stress levels.
Not reportedComparator
Verbatim
e0“Leaf extension rate was the most sensitive plant parameter to water stress and was decreased by all water stress treatments.”
t0“wild oat (Avena fatua)”
Claim · model-written summary
The 16 and 24% PEG treatments significantly increased wild oat stomatal diffusive resistance.
- Taxon
- wild oate0
- Organ / stage
- Leavese0
- Treatment
- 16 and 24% PEG treatmentse0
- Outcome
- Stomatal diffusive resistancee0
- Direction
- increasede0
Not reportedComparator
Verbatim
e0“Stomatal diffusive resistance of wild oat. Leaves was increased significantly by the 16 and 24% PEG treatments.”
Claim · model-written summary
Water stress reduced the response of wild oat to diclofop-methyl, with leaf extension continuing in the first week after spraying.
- Taxon
- wild oate0
- Treatment
- water stress treatmentse0
- Outcome
- response of wild oat to diclofopmethyle0
- Direction
- reductione0
- Qualifier
- during the first week after sprayinge0
Not reportedComparator
Verbatim
e0“These water stress treatments caused a reduction in the response of wild oat to diclofopmethyl as illustrated by a continuation of the leaf extension rate during the first week after spraying.”
Claim · model-written summary
Among diclofop-methyl-sprayed wild oats, survival was greatest at 24% PEG water stress.
- Taxon
- wild oatt0
- Treatment
- 24% PEGe0
- Outcome
- survivale0
- Direction
- greateste0
- Qualifier
- diclofop-methyl-sprayed plantse0
Not reportedComparator
Verbatim
e0“The survival and seedhead production of diclofop-methyl-sprayed plants were greatest at the highest water stress level (24% PEG).”
t0“wild oat (Avena fatua)”
Claim · model-written summary
Among diclofop-methyl-sprayed wild oats, seedhead production was greatest at 24% PEG water stress.
- Taxon
- wild oatt0
- Treatment
- 24% PEGe0
- Outcome
- seedhead productione0
- Direction
- greateste0
- Qualifier
- diclofop-methyl-sprayed plantse0
Not reportedComparator
Verbatim
e0“The survival and seedhead production of diclofop-methyl-sprayed plants were greatest at the highest water stress level (24% PEG).”
t0“wild oat (Avena fatua)”
Claim · model-written summary
Water stress did not affect CGA 184′927+S efficacy on wild oat.
Not reportedComparator
Verbatim
e0“Water stress did not affect the efficacy of CGA 184′927+S on wild oat.”
Claim · model-written summary
Leaf expansion stopped within four days after spraying wild oat with CGA 184′927+S at every imposed water stress level.
- Taxon
- wild oate1
- Treatment
- CGA 184′927+Se1
- Outcome
- leaf expansione0
- Direction
- stoppede0
- Qualifier
- irrespective of the water stress level imposede0
Not reportedComparator
Verbatim
e0“The leaf expansion of plants sprayed with this herbicide stopped within four days after spraying and all plants died within 35 days, irrespective of the water stress level imposed.”
e1“CGA 184′927+S on wild oat.”
Claim · model-written summary
All wild oats sprayed with CGA 184′927+S died within 35 days regardless of water stress level.
- Taxon
- wild oate1
- Treatment
- CGA 184′927+Se1
- Outcome
- all plants diede0
- Qualifier
- irrespective of the water stress level imposede0
Not reportedComparatorDirection
Verbatim
e0“all plants died within 35 days, irrespective of the water stress level imposed.”
e1“CGA 184′927+S on wild oat.”
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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.