Ozone dosage-crop loss function for alfalfa: a standardized method for assessing crop losses from air pollutants

Journal Article · Wed Sep 01 04:00:00 EDT 1976 · J. Air Pollut. Control Assoc.; (United States)

DOI:https://doi.org/10.1080/00022470.1976.10470330· OSTI ID:6194908

Oshima, R J; Poe, M P; Braegelmann, P K; Baldwin, D W; Van Way, V

Ozone dose-crop loss conversion functions for alfalfa (Medicago sativa, L. var. Moapa 69) yield reduction and defoliation were developed using standardized field plots within an ambient O/sub 3/ gradient in the South Coast Air Basin. Seasonal yields and defoliation values were tested with O/sub 3/ dose, average daily maximum temperature, average daily minimum temperature, and average daily relative humidity in regression analyses to determine significant functional relationships. Only the ambient O/sub 3/ dose variable was found to have a significant effect on alfalfa yield of defoliation. The ozone dose-crop loss conversion functions were calculated by converting the dose-response function to dose-percent reduction functions.

• Research Organization: Statewide Air Pollution Research Center, Riverside, CA
• OSTI ID: 6194908
• Journal Information: J. Air Pollut. Control Assoc.; (United States), Journal Name: J. Air Pollut. Control Assoc.; (United States) Vol. 26:9; ISSN JPCAA
• Country of Publication: United States
• Language: English

Related Subjects

500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
560303* -- Chemicals Metabolism & Toxicology-- Plants-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AIR POLLUTION
ALFALFA
BIOLOGICAL EFFECTS
CALCULATION METHODS
CROPS
DOSE-RESPONSE RELATIONSHIPS
FUNCTIONS
HUMIDITY
LEGUMINOSAE
LOSSES
MATHEMATICS
OZONE
PLANTS
POLLUTION
PRODUCTIVITY
REGRESSION ANALYSIS
RESPONSE FUNCTIONS
STANDARDIZATION
STATISTICS