Leaf diffusion resistance responses of three petunia cultivars to ozone and/or sulfur dioxide

Journal Article · Fri Jun 01 04:00:00 EDT 1979 · J. Air Pollut. Control Assoc.; (United States)

DOI:https://doi.org/10.1080/00022470.1979.10470833· OSTI ID:5407193

Elkiey, T; Ormrod, D P

To determine the response of leaf stomata to ozone and/or sulfur dioxide under two humidity regimes, leaf diffusion resistance of plants from three cultivars of petunia (Petunia hybrida) of differing ozone sensitivity was measured. At about 50% relative humidity, exposure to ozone and/or SO2 resulted in rapid increases in leaf diffusion resistance. At about 90% humidity, only slight increases in the leaf diffusion resistance were noted. The maximum leaf diffusion resistance reached with continued exposure to the pollutants was similar for all cultivars. (6 graphs, 26 references, 1 table)

• Research Organization: Univ of Guelph, Canada
• OSTI ID: 5407193
• Journal Information: J. Air Pollut. Control Assoc.; (United States), Journal Name: J. Air Pollut. Control Assoc.; (United States) Vol. 29:6; ISSN JPCAA
• 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
DIFFUSION
DOSE-RESPONSE RELATIONSHIPS
LEAVES
OPENINGS
OXIDES
OXYGEN COMPOUNDS
OZONE
STOMATA
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES