Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Cotton Yield Losses and Ambient Ozone Concentrations in California's San Joaquin Valley.
Author Olszyk, D. ; Bytnerowicz, A. ; Kats, G. ; Reagan, C. ; Hake, S. ;
CORP Author Corvallis Environmental Research Lab., OR. ;Pacific Southwest Forest and Range Experiment Station, Riverside, CA. ;California Univ., Riverside. Statewide Air Pollution Research Center. ;Agricultural Research Service, Shafter, CA. Cotton Research Station. ;ManTech Environmental Technology, Inc., Corvallis, OR.
Publisher 1993
Year Published 1993
Report Number EPA/600/J-93/516;
Stock Number PB94-135019
Additional Subjects Cotton plants ; Losses ; Ozone ; Concentration(Composition) ; San Joaquin Valley ; Air pollution ; Sites ; Weight(Mass) ; Summer ; Injuries ; Yield ; Growth ; Exposure ; Models ; Reprints ; Gossypium hirsutum ; Acala cotton ; Oxidants
Library Call Number Additional Info Location Last
NTIS  PB94-135019 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 05/14/1994
Collation 10p
Based on controlled experiments and simulation modeling, ozone air pollution has been estimated to cause significant yield losses to cotton. The study reported here was conducted to verify losses for Acala cotton (Gossypium hirsutum SJ2) along a gradient of ambient ozone (O3) concentrations across the San Joaquin Valley in California. Cotton was grown in nonfiltered (NF) and charcoal-filtered (CF) open-top chambers at four sites during the 1988-1989 summer growing seasons. Cotton yields were reduced in NF compared to CF air in general proportion to O3 concentrations across all sites and years. Greatest cotton yield losses were at Dinuba on the east side of the San Joaquin Valley and lowest were on the west side of the valley. Ozone injury symptoms on cotton were most noticeable in areas with greatest yield losses.