Ozone injury to eastern white pine
Journal Article
·
· Arborist's News; (United States)
OSTI ID:5941357
The gross symptomatology of ozone injury is summarized for comparison with other disorders and as an aid to those who must attempt to diagnose foliar disorders of this species. There is great variation in sensitivity to ozone among individual white pines. Acute injuries are caused by exposure of sensitive foliage to unusually high concentrations of ozone for a few hours or less. These characteristically take the form of more or less discrete lesions including the well-known tipburn. Chronic injury is the result of daily exposure to lower concentrations of ozone, sufficient to cause some intensification of existing symptoms and presumably to reduce the photosynthetic efficiency of ozone and the stage of needle development but also upon environmental conditions during and after exposure. The most important environmental factor under prevailing field conditions appears to be the presence of free moisture on pine needles during exposure to ozone. Moisture on pine foliage enhances the effect of the toxicant.
- Research Organization:
- Cornell Univ., Ithaca, NY
- OSTI ID:
- 5941357
- Journal Information:
- Arborist's News; (United States), Journal Name: Arborist's News; (United States) Vol. 32:7; ISSN ARNWA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
560303* -- Chemicals Metabolism & Toxicology-- Plants-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ACUTE EXPOSURE
BIOLOGICAL EFFECTS
CHEMICAL REACTIONS
CHRONIC EXPOSURE
CONIFERS
DAMAGE
DOSE-RESPONSE RELATIONSHIPS
INHIBITION
INJURIES
LEAVES
MOISTURE
OZONE
PHOTOCHEMICAL REACTIONS
PHOTOSYNTHESIS
PINES
PLANTS
RESPONSE MODIFYING FACTORS
SENSITIVITY
SYMPTOMS
SYNTHESIS
TREES
VARIATIONS
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ACUTE EXPOSURE
BIOLOGICAL EFFECTS
CHEMICAL REACTIONS
CHRONIC EXPOSURE
CONIFERS
DAMAGE
DOSE-RESPONSE RELATIONSHIPS
INHIBITION
INJURIES
LEAVES
MOISTURE
OZONE
PHOTOCHEMICAL REACTIONS
PHOTOSYNTHESIS
PINES
PLANTS
RESPONSE MODIFYING FACTORS
SENSITIVITY
SYMPTOMS
SYNTHESIS
TREES
VARIATIONS