Claim · model-written summary
Ozone reduced root dry mass of unshaded poplar by 33% at final harvest, while shaded poplar showed no such response.
- Treatment
- ozone exposuree1
- Outcome
- root dry masse1
- Direction
- reducede1
- Value
- 33%e1
- Comparator
- shaded plantse1
PopulusNot reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“In unshaded poplar plants, ozone exposure reduced root dry mass by 33% at final harvest, while shaded plants had no such response”
Title
M. G. TJOELKER; J. C. VOLIN; J. OLEKSYN; et al. New Phytologist 1993. doi:10.1111/j.1469-8137.1993.tb03852.x
Other claims from this paper (6)
- Intervention effect Ozone reduced root dry mass of shaded sugar maple by 10%, while unshaded sugar maple was unaffected.
- Intervention effect Ozone-exposed shaded sugar maple had a 24% lower leaf area: plant dry mass ratio.
- Intervention effect Ozone doubled dark respiration of leaves in shade-grown sugar maple, but had no effect in unshaded seedlings.
- Intervention effect Ozone caused greater increases in dark respiration of poplar under unshaded than shaded conditions.
- Intervention effect In unshaded poplar, ozone lowered in situ net photosynthesis, but not in sugar maple.
- Intervention effect Ozone did not change the leaf area: plant dry mass ratio of poplar.