||Yield Response of Head Lettuce ('Lactuca sativa' L.) to Ozone.
Temple, P. J. ;
Taylor, O. C. ;
Benoit, L. F. ;
||California Univ., Riverside. Statewide Air Pollution Research Center.;Corvallis Environmental Research Lab., OR.
Air pollution ;
Air pollution effects(Plants) ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||Head lettuce (Lactuca sativa L. cv 'Empire') was grown in the field and exposed in open-top chambers to proportional increments of ozone (O3) from full charcoal filtration (CF) to twice ambient O3 concentrations(NF x 2.0). Severe foliar injury developed on young plants exposed to O3 concentrations 1.7 and 2.0 times greater than ambient (seasonal 7 hr means of 0.104 and 0.128 ppm, respectively). These exposure levels also reduced total head weight 13 and 35%, respectively, compared with CF plants. Marketable-sized head weight was reduced 21 and 80%, respectively. (Copyright (c) 1986 Pergamon Press Ltd.).
||Pub. in Environmental and Experimental Botany, v26 n1 p53-58 Jan-Mar 86. Sponsored by Corvallis Environmental Research Lab., OR.
|NTIS Title Notes
||Reprint: Yield Response of Head Lettuce ('Lactuca sativa' L.) to Ozone.
|PUB Date Free Form
||2D; 68A; 98D
||PC A02/MF A01