Air pollution and the chlorotic dwarf disease of eastern white pine

Journal Article · Wed Dec 31 23:00:00 EST 1969 · For. Sci.; (United States)

OSTI ID:6863508

Dochinger, L S; Seliskar, C E

Chlorotic dwarf is a serious disorder of eastern white pine (Pinus strobus L.) in young plantations. Diseased trees are stunted, with mottled foliage, and have only the current-year needles. In a series of experiments in which chambers were erected around living trees to regulate airflow and filter out pollutants, it was found that dispersoid pollutants, through their harmful effect on foliage of genetically susceptible white pines, are responsible for chlorotic dwarf. Ambient levels of ozone and sulfur dioxide, singly and in combination, promoted early symptoms of premature defoliation and needle mottling on susceptible ramets in fumigation chambers.

• Research Organization: Northeastern Forest Experiment Station, Delaware, OH
• OSTI ID: 6863508
• Journal Information: For. Sci.; (United States), Journal Name: For. Sci.; (United States) Vol. 16:1; ISSN FOSCA
• Country of Publication: United States
• Language: English

Related Subjects

560303* -- Chemicals Metabolism & Toxicology-- Plants-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
BIOLOGICAL EFFECTS
CHALCOGENIDES
CONIFERS
GROWTH
INJURIES
OXIDES
OXYGEN COMPOUNDS
OZONE
PINES
PLANT GROWTH
PLANTS
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
TREES