Disease syndrome of Scotch pine showing needle necrosis on Steyer No. 2 farm

Book · Fri Jan 01 04:00:00 EST 1971

OSTI ID:6166502

Gordon, C C

The necrotic coniferous foliage collected from the Scotch Pine Christmas trees growing on the Steyer No. 2 Farm was studied with histological methods. This study revealed that the disease syndrome manifested by the various thin-walled cells of the coniferous needles was caused by phytotoxic concentrations of sulfur compounds. From numerous studies with coniferous foliage that has exhibited this disease syndrome, from control fumigation studies in the laboratory, and from several field studies in areas where only phytotoxic concentrations of sulfur dioxide were present, it can be said without equivocation that the necrosis seen on foliage from Scotch pine trees on the Steyer No. 2 Farm was caused by excessive concentrations of sulfur dioxide in the ambient air. 11 figures.

• OSTI ID: 6166502
• 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 ACCUMULATION
BIOLOGICAL EFFECTS
CHALCOGENIDES
CONIFERS
FOLIAR UPTAKE
HISTOLOGICAL TECHNIQUES
LEAVES
NECROSIS
OXIDES
OXYGEN COMPOUNDS
PATHOLOGICAL CHANGES
PINES
PLANTS
SENSITIVITY
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
TREES
UPTAKE