Differential response of seventeen Poa pratensis cultivars to ozone and sulfur dioxide

Journal Article · Wed Oct 01 04:00:00 EDT 1975 · Plant Dis.; (United States)

OSTI ID:5120914

Murray, J J; Howell, R K; Wilton, A C

Seventeen Kentucky bluegrass, Poa pratensis, cultivars were evaluated for sensitivity to ozone (O/sub 3/) and sulfur dioxide (SO/sub 2/) by exposure on two dates to either 40 parts per hundred million (pphm) O/sub 3/ or 20 pphm SO/sub 2/ for 2 hr at 26/sup 0/C, 92% relative humidity, and an illumination of 21,520 lux. Cultivars differed significantly in sensitivity to both phytotoxicants. The range in sensitivity among cultivars was not as great for SO/sub 2/ as O/sub 3/. Cultivar response differences to both O/sub 3/ and SO/sub 2/ injury were sufficiently consistent to indicate genetic differences within this species. Several cultivars had practical levels of resistance. A differential response among cultivars was generally obtained with the two pollutants. 8 references, 1 table.

• Research Organization: Dept. of Agriculture, Beltsville, MD
• OSTI ID: 5120914
• Journal Information: Plant Dis.; (United States), Journal Name: Plant Dis.; (United States) Vol. 59:10; ISSN PLDID
• 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.
AIR POLLUTION
BIOLOGICAL EFFECTS
CHALCOGENIDES
COMPARATIVE EVALUATIONS
GRASS
OXIDES
OXYGEN COMPOUNDS
OZONE
PLANTS
POLLUTION
SENSITIVITY
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES