Abstract
Height growth of silver maple, white ash, yellow-poplar, sycamore, eastern cottonwood, and white spruce seedlings was not significantly influenced by 0.15 ppm SO2 for 8 hours/day, 5 days/week. A fumigation treatment of 0.25 ppm SO2 for 8 hourd/day, 5 days/week did not significantly affect height growth of black alder, yellow-poplar and white spruce seedlings but significantly reduced the height growth of eastern cottonwood, green ash, and sycamore seedlings. Exposure to toxic concentrations of SO2 (1 to 4 ppm) for 2 to 8 hours significantly affected the height growth and caused leaf injury in silver maple and yellow-poplar seedlings. Growth was only suppressed for 14 days after the toxic fumigation because by that time new leaves had formed and normal growth had resumed.
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Claims 15
Claim · model-written summary
silver maple seedling height growth was not significantly influenced by 0.15 ppm SO2.
- Taxon
- silver maple
Acer saccharinume0 - Treatment
- 0.15 ppm SO2 for 8 hours/day, 5 days/weeke0
- Outcome
- Height growthe0
- Direction
- not significantly influencede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Height growth of silver maple, white ash, yellow-poplar, sycamore, eastern cottonwood, and white spruce seedlings was not significantly influenced by 0.15 ppm SO2 for 8 hours/day, 5 days/week.”
Claim · model-written summary
white ash seedling height growth was not significantly influenced by 0.15 ppm SO2.
- Taxon
- white ash
Fraxinus americanae0 - Treatment
- 0.15 ppm SO2 for 8 hours/day, 5 days/weeke0
- Outcome
- Height growthe0
- Direction
- not significantly influencede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Height growth of silver maple, white ash, yellow-poplar, sycamore, eastern cottonwood, and white spruce seedlings was not significantly influenced by 0.15 ppm SO2 for 8 hours/day, 5 days/week.”
Claim · model-written summary
yellow-poplar seedling height growth was not significantly influenced by 0.15 ppm SO2.
- Taxon
- yellow-poplare0
- Treatment
- 0.15 ppm SO2 for 8 hours/day, 5 days/weeke0
- Outcome
- Height growthe0
- Direction
- not significantly influencede0
Not reportedComparator
Verbatim
e0“Height growth of silver maple, white ash, yellow-poplar, sycamore, eastern cottonwood, and white spruce seedlings was not significantly influenced by 0.15 ppm SO2 for 8 hours/day, 5 days/week.”
Claim · model-written summary
sycamore seedling height growth was not significantly influenced by 0.15 ppm SO2.
- Taxon
- sycamoree0
- Treatment
- 0.15 ppm SO2 for 8 hours/day, 5 days/weeke0
- Outcome
- Height growthe0
- Direction
- not significantly influencede0
Not reportedComparator
Verbatim
e0“Height growth of silver maple, white ash, yellow-poplar, sycamore, eastern cottonwood, and white spruce seedlings was not significantly influenced by 0.15 ppm SO2 for 8 hours/day, 5 days/week.”
Claim · model-written summary
eastern cottonwood seedling height growth was not significantly influenced by 0.15 ppm SO2.
- Taxon
- eastern cottonwoode0
- Treatment
- 0.15 ppm SO2 for 8 hours/day, 5 days/weeke0
- Outcome
- Height growthe0
- Direction
- not significantly influencede0
Not reportedComparator
Verbatim
e0“Height growth of silver maple, white ash, yellow-poplar, sycamore, eastern cottonwood, and white spruce seedlings was not significantly influenced by 0.15 ppm SO2 for 8 hours/day, 5 days/week.”
Claim · model-written summary
white spruce seedling height growth was not significantly influenced by 0.15 ppm SO2.
- Taxon
- white spruce
Picea glaucae0 - Treatment
- 0.15 ppm SO2 for 8 hours/day, 5 days/weeke0
- Outcome
- Height growthe0
- Direction
- not significantly influencede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Height growth of silver maple, white ash, yellow-poplar, sycamore, eastern cottonwood, and white spruce seedlings was not significantly influenced by 0.15 ppm SO2 for 8 hours/day, 5 days/week.”
Claim · model-written summary
black alder height growth was not significantly affected by 0.25 ppm SO2.
- Taxon
- black alder
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Alnus glutinosae0 - Treatment
- 0.25 ppm SO2 for 8 hourd/day, 5 days/weeke0
- Outcome
- height growthe0
- Direction
- did not significantly affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“A fumigation treatment of 0.25 ppm SO2 for 8 hourd/day, 5 days/week did not significantly affect height growth of black alder, yellow-poplar and white spruce seedlings but significantly reduced the height growth of eastern cottonwood, green ash, and sycamore seedlings.”
Claim · model-written summary
yellow-poplar height growth was not significantly affected by 0.25 ppm SO2.
- Taxon
- yellow-poplare0
- Treatment
- 0.25 ppm SO2 for 8 hourd/day, 5 days/weeke0
- Outcome
- height growthe0
- Direction
- did not significantly affecte0
Not reportedComparator
Verbatim
e0“A fumigation treatment of 0.25 ppm SO2 for 8 hourd/day, 5 days/week did not significantly affect height growth of black alder, yellow-poplar and white spruce seedlings but significantly reduced the height growth of eastern cottonwood, green ash, and sycamore seedlings.”
Claim · model-written summary
white spruce height growth was not significantly affected by 0.25 ppm SO2.
- Taxon
- white sprucePicea glaucae0
- Treatment
- 0.25 ppm SO2 for 8 hourd/day, 5 days/weeke0
- Outcome
- height growthe0
- Direction
- did not significantly affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A fumigation treatment of 0.25 ppm SO2 for 8 hourd/day, 5 days/week did not significantly affect height growth of black alder, yellow-poplar and white spruce seedlings but significantly reduced the height growth of eastern cottonwood, green ash, and sycamore seedlings.”
Claim · model-written summary
eastern cottonwood height growth was significantly reduced by 0.25 ppm SO2.
- Taxon
- eastern cottonwoode0
- Treatment
- 0.25 ppm SO2 for 8 hourd/day, 5 days/weeke0
- Outcome
- height growthe0
- Direction
- significantly reducede0
Not reportedComparator
Verbatim
e0“A fumigation treatment of 0.25 ppm SO2 for 8 hourd/day, 5 days/week did not significantly affect height growth of black alder, yellow-poplar and white spruce seedlings but significantly reduced the height growth of eastern cottonwood, green ash, and sycamore seedlings.”
Claim · model-written summary
green ash height growth was significantly reduced by 0.25 ppm SO2.
- Taxon
- green ash
Fraxinus pennsylvanicae0 - Treatment
- 0.25 ppm SO2 for 8 hourd/day, 5 days/weeke0
- Outcome
- height growthe0
- Direction
- significantly reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A fumigation treatment of 0.25 ppm SO2 for 8 hourd/day, 5 days/week did not significantly affect height growth of black alder, yellow-poplar and white spruce seedlings but significantly reduced the height growth of eastern cottonwood, green ash, and sycamore seedlings.”
Claim · model-written summary
sycamore height growth was significantly reduced by 0.25 ppm SO2.
- Taxon
- sycamoree0
- Treatment
- 0.25 ppm SO2 for 8 hourd/day, 5 days/weeke0
- Outcome
- height growthe0
- Direction
- significantly reducede0
Not reportedComparator
Verbatim
e0“A fumigation treatment of 0.25 ppm SO2 for 8 hourd/day, 5 days/week did not significantly affect height growth of black alder, yellow-poplar and white spruce seedlings but significantly reduced the height growth of eastern cottonwood, green ash, and sycamore seedlings.”
Claim · model-written summary
Toxic SO2 exposure significantly affected silver maple height growth and caused leaf injury.
- Taxon
- silver mapleAcer saccharinume0
- Treatment
- SO2 (1 to 4 ppm) for 2 to 8 hourse0
- Outcome
- height growth and caused leaf injurye0
- Direction
- significantly affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Exposure to toxic concentrations of SO2 (1 to 4 ppm) for 2 to 8 hours significantly affected the height growth and caused leaf injury in silver maple and yellow-poplar seedlings.”
Claim · model-written summary
Toxic SO2 exposure significantly affected yellow-poplar height growth and caused leaf injury.
- Taxon
- yellow-poplare0
- Treatment
- SO2 (1 to 4 ppm) for 2 to 8 hourse0
- Outcome
- height growth and caused leaf injurye0
- Direction
- significantly affectede0
Not reportedComparator
Verbatim
e0“Exposure to toxic concentrations of SO2 (1 to 4 ppm) for 2 to 8 hours significantly affected the height growth and caused leaf injury in silver maple and yellow-poplar seedlings.”
Claim · model-written summary
Growth suppression after toxic fumigation lasted only 14 days before normal growth resumed.
Verbatim
e0“Growth was only suppressed for 14 days after the toxic fumigation because by that time new leaves had formed and normal growth had resumed.”
t0“woody species”
The same questions in other papers
pollution · growth · Fraxinus americana (white ash)Results agree
1 paper in the same direction as this paper
- no effect
pollution · growth · Picea glauca (white spruce)Results agree
1 paper in the same direction as this paper
- no effect
pollution · growth · Alnus glutinosaResults agree
1 paper in the same direction as this paper
- no effect
pollution · growth · Fraxinus pennsylvanica (green ash)Results agree
1 paper in the same direction as this paper
- negative
pollution · growth · Acer saccharinum (silver maple)Results agree
2 papers in the same direction as this paper
- negative
- no effect
pollution · crop injury · Acer saccharinum (silver maple)Results agree
2 papers in the same direction as this paper
- negative
- negative
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.