Abstract
The response of black cherry (Prunusserotina Ehrh.), sugar maple (Acersacchárum Marsh.), and yellow-poplar (Liriodendrontulipifera L.) seedlings after being exposed to two seasons of ozone ranging from subambient to twice ambient (exposures ranged from 16 to 107 ppm•h in 1990 and 31 to 197 ppm•h in 1991) was studied in standard 3-m diameter open-top chambers. All three species responded differently to ozone. After one season of exposure, black cherry growth and biomass decreased with increasing ozone exposure; yellow-poplar growth and biomass increased with increasing ozone exposure; and sugar maple growth and biomass were not significantly affected by ozone. After two seasons of exposure, few to no effects from ozone were observed in either sugar maple or yellow-poplar. However, total plant and root biomass of black cherry exposed to twice ambient ozone were reduced 32 and 39%, respectively, when compared with those grown in charcoal-filtered air. Exposure–response relationships were either linear or quadratic for most of the growth and biomass parameters measured.
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Claims 8
Claim · model-written summary
After one season, black cherry growth and biomass decreased with increasing ozone.
- Taxon
- black cherry
Prunus serotinae0 - Treatment
- ozone exposuree0
- Outcome
- growth and biomasse0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After one season of exposure, black cherry growth and biomass decreased with increasing ozone exposure”
Claim · model-written summary
After one season, yellow-poplar growth and biomass increased with increasing ozone.
Verbatim
e0“yellow-poplar growth and biomass increased with increasing ozone exposure”
Claim · model-written summary
After one season, sugar maple growth and biomass were not significantly affected by ozone.
- Taxon
- sugar maple
Acer saccharume0 - Treatment
- ozonee0
- Outcome
- growth and biomasse0
- Direction
- not significantly affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sugar maple growth and biomass were not significantly affected by ozone”
Claim · model-written summary
After two seasons, sugar maple had few to no ozone effects.
- Taxon
- sugar mapleAcer saccharume0
- Treatment
- ozonee0
- Outcome
- few to no effectse0
- Direction
- few to no effectse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After two seasons of exposure, few to no effects from ozone were observed in either sugar maple or yellow-poplar”
Claim · model-written summary
After two seasons, yellow-poplar had few to no ozone effects.
Not reportedComparator
Verbatim
e0“After two seasons of exposure, few to no effects from ozone were observed in either sugar maple or yellow-poplar”
Claim · model-written summary
Twice ambient ozone reduced black cherry total plant biomass by 32% compared with charcoal-filtered air.
- Taxon
- black cherryPrunus serotinae0
- Treatment
- twice ambient ozonee0
- Outcome
- total plante0
- Direction
- reducede0
- Value
- 32e0
- Comparator
- charcoal-filtered aire0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“total plant and root biomass of black cherry exposed to twice ambient ozone were reduced 32 and 39%, respectively, when compared with those grown in charcoal-filtered air”
Claim · model-written summary
Twice ambient ozone reduced black cherry root biomass by 39% compared with charcoal-filtered air.
- Taxon
- black cherryPrunus serotinae0
- Treatment
- twice ambient ozonee0
- Outcome
- root biomasse0
- Direction
- reducede0
- Value
- 39%e0
- Comparator
- charcoal-filtered aire0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“total plant and root biomass of black cherry exposed to twice ambient ozone were reduced 32 and 39%, respectively, when compared with those grown in charcoal-filtered air”
Claim · model-written summary
Exposure-response relationships were linear or quadratic for most growth and biomass parameters.
Not reportedTaxon
Verbatim
e0“Exposure–response relationships were either linear or quadratic for most of the growth and biomass parameters measured”
t0“three northeastern hardwood species”
The same questions in other papers
ozone · growth · Acer saccharum (sugar maple)Results differ
8 papers in the same direction as this paper
- negative
- negative
- negative
5 papers more in this group
See all 9 papers →ozone · growth · Prunus serotina (black cherry)Results agree
2 papers in the same direction as this paper
- negative
- no effect
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.