Effects of ambient ozone on first-year growth and physiology of black cherry (Prunus serotina Ehrh. ) seedlings

Conference · Tue Jun 01 00:00:00 EDT 1993 · Bulletin of the Ecological Society of America; (United States)

OSTI ID:6202332

Kolb, T E; Skelly, J M; Steiner, K C; Dunn, K ^[1]

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1. Northern Arizona Univ., Flagstaff (United States) Pennsylvania State Univ., University Park (United States)

Black cherry seedlings of two open-pollinated families were exposed to ambient ozone in open plots (100%) and plots receiving non-filtered (95%), half-filtered (60%) and full-filtered (40%) concentrations via open-top chambers between early June and late-September 1992 in a replicated field experiment in central Pennsylvania. Seasonal 24-hour ambient ozone concentration averaged 34 ppb with a peak 1-hour concentration of 110 ppb. Foliar symptoms of ozone damage (adaxial stipple) occurred most prominently in open and non-filtered plots and differed between families. Net photosynthetic rate for both families was significantly lower in open and non-filtered plots compared with half- and full-filtered plots on most dates, while ozone concentration had no consistent effect on leaf conductance or dark respiration. Leaf conductance of the ozone sensitive family was significantly greater than the ozone tolerant family on most dates. First-year height and diameter growth were significantly lower in open and non-filtered plots compared with half- and full-filtered plots for both families.

• OSTI ID: 6202332
• Report Number(s): CONF-930798--
• Journal Information: Bulletin of the Ecological Society of America; (United States), Journal Name: Bulletin of the Ecological Society of America; (United States) Vol. 74:2; ISSN BECLAG; ISSN 0012-9623
• Country of Publication: United States
• Language: English

Related Subjects

560300* -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
BIOLOGICAL EFFECTS
CHEMICAL REACTIONS
CHERRIES
DEVELOPED COUNTRIES
FOOD
FRUIT TREES
FRUITS
GROWTH
NORTH AMERICA
OZONE
PENNSYLVANIA
PHOTOCHEMICAL REACTIONS
PHOTOSYNTHESIS
PHYSIOLOGY
PLANT GROWTH
PLANTS
SEEDLINGS
SYNTHESIS
TREES
USA