| Main Title |
Effects of ozone on nitrogen fixation in ladino clover / |
| Author |
Blum, Udo.
|
| Other Authors |
|
| CORP Author |
North Carolina State Univ., Raleigh. Dept. of Botany.;Environmental Research Lab., Corvallis, Oreg. Ecological Effects Research Div. |
| Publisher |
U.S. Environmental Protection Agency, Office of Research and Development, Corvallis Environmental Research Laboratory, |
| Year Published |
1976 |
| Report Number |
EPA-600/3-76-031; EPA-IAG-D5-0416; EPA-ROAP-21ALR-24 |
| Stock Number |
PB-252 076 |
| OCLC Number |
15236010 |
| Subjects |
Ladino clover--Effect of ozone on ;
Nitrogen-fixing plants--Effect of ozone on
|
| Additional Subjects |
Ozone ;
Nitrogen fixation ;
Plant growth ;
Air pollution ;
Plant physiology ;
Nitrogen ;
Calorific value ;
Phenol ;
Biomass ;
Vegetation ;
Grasses ;
Leguminous plants ;
Microorganisms ;
Soils ;
Air pollution effects(Plants) ;
Clover ;
Trifolium
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EJBD |
EPA 600-3-76-031 |
|
Headquarters Library/Washington,DC |
09/21/2016 |
| EKBD |
EPA-600/3-76-031 |
|
Research Triangle Park Library/RTP, NC |
07/11/2003 |
| ELBD ARCHIVE |
EPA 600-3-76-031 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| ESAD |
EPA 600-3-76-031 |
|
Region 10 Library/Seattle,WA |
03/23/2010 |
| NTIS |
PB-252 076 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
vii, 22 pages : illustrations ; 28 cm. |
| Abstract |
Research was performed to determine the effects of ozone on ladino clover growth, nodulation, nitrogen fixation, nitrogen content, phenol content, energy value and root exudates. Plants were exposed once or twice to carbon-filtered air, 30 or 60 pphm ozone for 2 hrs. The effects of ozone on growth, nitrogen fixation, % nitrogen, total nitrogen and nodulation varied with age of plant and ozone concentration. Caloric content of tops (plants 4 weeks old when exposed) was reduced with two exposures of 30 or 60 pphm ozone. Root caloric content was not affected. Phenol content of tops and roots (plants 6 weeks old when exposed) was reduced with two 30 pphm ozone exposures. Clover exudates were not detectably modified by ozone exposure. |
| Notes |
Includes bibliographical references (page 21). "March 1976." |
