Abstract
White birch, yellow birch, bigtooth aspen, eastern cottonwood, Japanese larch, and white spruce seedlings were fumigated with 25 pphm ozone for 110 days. Height growth of the white birch seedlings was reduced, but not by a significant amount; growth of the other species was not affected. The number and size of the white birch leaves were also reduced during the fumigation period.
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Claims 8
Claim · model-written summary
Ozone fumigation reduced white birch seedling height growth, but the reduction was not statistically significant.
- Taxon
- white birch
Betula pendulae1 - Treatment
- 25 pphm ozone for 110 dayse0
- Outcome
- Height growthe1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“White birch, yellow birch, bigtooth aspen, eastern cottonwood, Japanese larch, and white spruce seedlings were fumigated with 25 pphm ozone for 110 days.”
e1“Height growth of the white birch seedlings was reduced, but not by a significant amount”
Claim · model-written summary
Ozone fumigation did not affect yellow birch growth.
- Taxon
- yellow birch
_(28089223020).jpg?width=60)
Betula alleghaniensise0 - Treatment
- 25 pphm ozone for 110 dayse0
- Outcome
- growthe1
- Direction
- not affectede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_(28089223020).jpg?width=500)
Verbatim
e0“White birch, yellow birch, bigtooth aspen, eastern cottonwood, Japanese larch, and white spruce seedlings were fumigated with 25 pphm ozone for 110 days.”
e1“growth of the other species was not affected”
Claim · model-written summary
Ozone fumigation did not affect bigtooth aspen growth.
- Taxon
- bigtooth aspen
Populus grandidentatae0 - Treatment
- 25 pphm ozone for 110 dayse0
- Outcome
- growthe1
- Direction
- not affectede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“White birch, yellow birch, bigtooth aspen, eastern cottonwood, Japanese larch, and white spruce seedlings were fumigated with 25 pphm ozone for 110 days.”
e1“growth of the other species was not affected”
Claim · model-written summary
Ozone fumigation did not affect eastern cottonwood growth.
- Taxon
- eastern cottonwoode0
- Treatment
- 25 pphm ozone for 110 dayse0
- Outcome
- growthe1
- Direction
- not affectede1
Not reportedComparator
Verbatim
e0“White birch, yellow birch, bigtooth aspen, eastern cottonwood, Japanese larch, and white spruce seedlings were fumigated with 25 pphm ozone for 110 days.”
e1“growth of the other species was not affected”
Claim · model-written summary
Ozone fumigation did not affect Japanese larch growth.
Not reportedComparator
Verbatim
e0“White birch, yellow birch, bigtooth aspen, eastern cottonwood, Japanese larch, and white spruce seedlings were fumigated with 25 pphm ozone for 110 days.”
e1“growth of the other species was not affected”
Claim · model-written summary
Ozone fumigation did not affect white spruce growth.
- Taxon
- white spruce
Picea glaucae0 - Treatment
- 25 pphm ozone for 110 dayse0
- Outcome
- growthe1
- Direction
- not affectede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“White birch, yellow birch, bigtooth aspen, eastern cottonwood, Japanese larch, and white spruce seedlings were fumigated with 25 pphm ozone for 110 days.”
e1“growth of the other species was not affected”
Claim · model-written summary
Ozone fumigation reduced the number of white birch leaves.
- Taxon
- white birchBetula pendulae1
- Organ / stage
- leavese1
- Treatment
- 25 pphm ozone for 110 dayse0
- Outcome
- numbere1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“White birch, yellow birch, bigtooth aspen, eastern cottonwood, Japanese larch, and white spruce seedlings were fumigated with 25 pphm ozone for 110 days.”
e1“The number and size of the white birch leaves were also reduced during the fumigation period”
Claim · model-written summary
Ozone fumigation reduced the size of white birch leaves.
- Taxon
- white birchBetula pendulae1
- Organ / stage
- leavese1
- Treatment
- 25 pphm ozone for 110 dayse0
- Outcome
- sizee1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“White birch, yellow birch, bigtooth aspen, eastern cottonwood, Japanese larch, and white spruce seedlings were fumigated with 25 pphm ozone for 110 days.”
e1“The number and size of the white birch leaves were also reduced during the fumigation period”
The same questions in other papers
ozone · growth · Betula pendula (white birch)Results agree
8 papers in the same direction as this paper
- negative
- negative
- negative
5 papers more in this group
See all 9 papers →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.