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MATHEMATICAL MODEL OF PLANT UPTAKE AND TRANSLOCATION OF ORGANIC CHEMICALS: APPLICATION TO EXPERIMENTS
Citation:
Boersma, L., C. McFarlane, AND F. Lindstrom. MATHEMATICAL MODEL OF PLANT UPTAKE AND TRANSLOCATION OF ORGANIC CHEMICALS: APPLICATION TO EXPERIMENTS. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/J-92/347.
Description:
Uptake, transport, and accumulation of organic chemicals by plants are influenced by characteristics of the plant and properties of the chemical, soil, and environmental conditions. athematical model for uptake of organic chemicals by plants was calibrated by application to data from experiments in which the uptake of bromacil (C6H13BrN2O2) by soybean [Glycine max (L.) Merr.] plants was measured. he model was initially formulated by defining a generic plant as a set of adjacent compartments representing the major pools and pathways involved in transport and accumulation of water solutes. or this application the plant consists of one root, three stem, and three leaf compartments, with each compartment being subdivided into xylem, phloem, and storage. he model was calibrated with respect to storage coefficients that quantify rate of transport to and from storage. he model statisfactorily predicted the observed uptake and distribution patterns for bromacil in soybean plants at the stage of growth and under the environmental conditions of the experiments.