Influence of ozone-exposure dynamics on the growth and yield of kidney bean (journal version)

Technical Report · Fri Jan 01 04:00:00 EST 1988

OSTI ID:6408763

Kohut, R J; Laurence, J A; Colavito, L J

A field experiment was conducted in open-top chambers to assess the importance of peak exposure concentration and exposure frequency on the responses of kidney bean plants to O/sub 3/. There were five treatments in the study: charcoal-filtered air, constant exposure to 0.05 ppm O/sub 3/ (131 micrograms/cu m) daily, fluctuating exposure to 0.08 ppm O/sub 3/ on three alternate days, cluster exposure to 0.08 ppm O/sub 3/ on three consecutive days, and peak exposure to 0.12 ppm O/sub 3/ on two consecutive days. There were no significant effects of the O/sub 3/-addition treatments on yield when compared to the plants receiving charcoal-filtered air. This indicates that there were no cumulative impacts on plants exposed to 0.12 ppm O/sub 3/ for 4h on two consecutive days followed by filtered air compared to plants receiving charcoal-filtered air. The seasonal 7-h average concentrations of O/sub 3/ in the peak and filtered-air treatments were approximately 0.040 and 0.025 ppm, respectively.

• Research Organization: Boyce Thompson Inst. for Plant Research, Ithaca, NY (USA)
• OSTI ID: 6408763
• Report Number(s): PB-89-145015/XAB
• Country of Publication: United States
• Language: English

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63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
BEANS
BIOLOGICAL EFFECTS
BIOMASS
DOSE-RESPONSE RELATIONSHIPS
ELEMENTS
ENERGY SOURCES
ENVIRONMENTAL IMPACTS
FIELD TESTS
FOOD
GROWTH
NONMETALS
OXYGEN
OZONE
PLANT GROWTH
PLANTS
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TESTING
VEGETABLES
YIELDS