Record Display for the EPA National Library Catalog

RECORD NUMBER: 41 OF 46

OLS Field Name OLS Field Data
Main Title Study of the Potential Ways in Which Ozone could Reduce Root Growth and Nodulation of Soybean.
Author Blum, Udo ; Tingey, David T. ;
CORP Author Corvallis Environmental Research Lab., OR. ;North Carolina Agricultural Experiment Station, Raleigh.
Year Published 1976
Report Number EPA/600/J-77/138;
Stock Number PB-289 179
Additional Subjects Toxicology ; Soybean plants ; Ozone ; Air pollution ; Plant growth ; Exposure ; Plant tissues ; Soils ; Leguminous plants ; Oilseed crops ; Nodules ; Physiological effects ; Reprints ; Air pollution effects(Plants) ; Toxic substances
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  PB-289 179 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 4p
Abstract
The possible mechanisms by which the ozone reduces root growth and nodulation of soybean were investigated. Ozone did not appreciably penetrate the plant growth substrates nor did it oxidize soil organic matter to form compounds inhibitory to Rhizobium. When ozone was excluded from the plant foliage, but not the soil, root growth and nodulation were not reduced. However, when plant tops were directly exposed to the ozone, root growth and nodulation were reduced. These results indicated that observed reductions in roots growth and nodulation did not occur by way of the soil, but resulted from an effect of ozone on the plant foliage.