Ozone and sulfur dioxide synergism: foliar injury to a ponderosa pine geographic race plantation in the Puget Sound region

Journal Article · Sat Oct 31 23:00:00 EST 1970 · Plant Dis. Rep.; (United States)

OSTI ID:6863518

Karpen, D N

Chlorotic spotting was observed on the foliage of a stand of ponderosa pine near La Grande, Washington, about 65 miles south of Seattle. Differences were noted with respect to the air pollution damage on each of ten geographic races in the stand. It has been hypothesized that a possible ozone-sulfur dioxide synergism may be responsible for the damage, which has the outward appearance of ozone mottling observed in the San Bernardino National Forest near Los Angeles, California.

• Research Organization: Univ. of Washington, Seattle
• OSTI ID: 6863518
• Journal Information: Plant Dis. Rep.; (United States), Journal Name: Plant Dis. Rep.; (United States) Vol. 54:11; ISSN PLDRA
• Country of Publication: United States
• Language: English

Related Subjects

500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
560303* -- Chemicals Metabolism & Toxicology-- Plants-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AIR POLLUTION
BIOLOGICAL EFFECTS
CALIFORNIA
CHALCOGENIDES
CONIFERS
FEDERAL REGION IX
FEDERAL REGION X
GEOGRAPHICAL VARIATIONS
INJURIES
NORTH AMERICA
OXIDES
OXYGEN COMPOUNDS
OZONE
PINES
PLANTS
POLLUTION
SENSITIVITY
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
SYNERGISM
TREES
USA
VARIATIONS
WASHINGTON