| Main Title |
Response of Turnips to Chronic Doses of Ozone in Open-Top Field Chambers. |
| Author |
Heagle, A. S. ;
Cure, W. W. ;
Rawlings, J. O. ;
|
| CORP Author |
Agricultural Research Service, Washington, DC. ;North Carolina State Univ. at Raleigh.;Corvallis Environmental Research Lab., OR. |
| Year Published |
1985 |
| Report Number |
EPA/600/J-85/245; |
| Stock Number |
PB86-136983 |
| Additional Subjects |
Ozone ;
Root crops ;
Air pollution ;
Dosage ;
Field tests ;
Exposure ;
Concentration(Composition) ;
Necrosis ;
Leaves(Botany) ;
Weight(Mass) ;
Losses ;
Survival ;
Reprints ;
Brassica rappa ;
Turnips
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB86-136983 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
16p |
| Abstract |
Turnips Brassica rapa L., were exposed to chronic doses of ozone(O3) by adding different amounts of O3 for 7 h a day to non-filtered air in open-top field chambers. One cultivar(Tokyo Cross) was tested in 1979 and four cultivars (Tokyo Cross, Shogoin, Purple Top White Globe and Just Right) in 1980. Ambient levels of O3 usually did not affect shoot or root weight in either year. In 1979, seasonal mean O3 levels greater than ambient caused greater percentage growth decreases of Tokyo Cross plants grown in the ground than for plants grown in 3.8 litre pots. In 1980, 7 h a day exposures from 20 October to 14 November to levels as high as 0.16 ppm caused some chlorosis on a few of the oldest leaves of all cultivars. No O3 was added from 15-17 November because the weather was cold, overcast and rainy. Exposures to 03 concentrations of 0.09 or 0.11 ppm for 3.5 h on the afternoon of 18 November caused severe foliar necrosis on all expanded leaves of all cultivars. (Copyright (c) Elsevier Applied Science Publishers Ltd, England, 1985.) |
| Supplementary Notes |
Prepared in cooperation with North Carolina State Univ. at Raleigh. Sponsored by Corvallis Environmental Research Lab., OR. |
| Availability Notes |
Pub. in Environmental Pollution (Series A) 38, p305-319 Jun 85. |
| NTIS Title Notes |
Journal article. |
| Title Annotations |
Reprint: Response of Turnips to Chronic Doses of Ozone in Open-Top Field Chambers. |
| PUB Date Free Form |
c1985 |
| Category Codes |
2D; 14B; 68A; 98D |
| NTIS Prices |
Not available NTIS |
| Primary Description |
600/02 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
605827034 |
| Origin |
NTIS |
| Type |
CAT |
