| Main Title |
Yield Response of Head Lettuce ('Lactuca sativa' L.) to Ozone. |
| Author |
Temple, P. J. ;
Taylor, O. C. ;
Benoit, L. F. ;
|
| CORP Author |
California Univ., Riverside. Statewide Air Pollution Research Center.;Corvallis Environmental Research Lab., OR. |
| Year Published |
1986 |
| Report Number |
EPA-R-807399; EPA/600/J-86/011; |
| Stock Number |
PB86-176773 |
| Additional Subjects |
Ozone ;
Lettuce ;
Air pollution ;
Yield ;
Tolerances(Physiology) ;
Damage ;
Injuries ;
Concentration(Composition) ;
Exposure ;
Weight(Mass) ;
Reprints ;
Air pollution effects(Plants) ;
Lactuca sativa
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB86-176773 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
8p |
| Abstract |
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.). |
