||Evaluation of an Ozone X Moisture Stress Interaction Model for Soybean (Journal Version).
King, D. A. ;
Heagle, A. S. ;
Flagler, R. B. ;
||Portland Univ., OR. Dept. of Physical and Life Sciences. ;North Carolina Agricultural Research Service, Raleigh. Plant Pathology Dept. ;North Carolina State Univ. at Raleigh.;Corvallis Environmental Research Lab., OR.
Soybean plants ;
Mathematical models ;
Plant physiology ;
Plant growth ;
Air pollution effects(Plants) ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
Assessments of air pollution impacts on crops may overestimate losses because they do not consider the impacts of soil moisture deficits on pollutant uptake by plants. A recent model of moisture stress X ozone interactions predicted reduced ozone impacts on yields of drought-stressed crops, due in part to an assumed reduction in the ozone damage during drought. The paper describes an evaluation of the model with ozone X moisture stress field experiments on soybean conducted at Raleigh, NC, U.S.A. Modelled yield losses due to ozone were smaller than observed for moisture-stressed soybean, but these differences were not statistically significant. The model predictions were consistent with the ozone X H2O interaction observed by other researchers for soybean grown in a controlled environment. (Copyright (c) 1988 Elsevier Science Publishers B.V.)