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Main Title Transpiration Effect on the Uptake and Distribution of Bromacil, Nitrobenzene, and Phenol in Soybean Plants (Journal Version).
Author McFarlane, J. C. ; Pfleeger, T. ; Fletcher, J. ;
CORP Author Corvallis Environmental Research Lab., OR.
Publisher 1987
Year Published 1987
Report Number EPA/600/J-87/454;
Stock Number PB89-134605
Additional Subjects Herbicides ; Phenol ; Nitrobenzenes ; Aromatic hydrocarbons ; Industrial wastes ; Absorption(Biology) ; Soybean plants ; Transpiration ; Plant physiology ; Pesticide residues ; Bromacil ; Translocation ; Carbon 14 compounds ; Dynamic function studies ; Tracer techniques ; Glycine hispida ; Biological accumulation ; Uptake ; Root absorption
Library Call Number Additional Info Location Last
NTIS  PB89-134605 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 8p
The influence of transpiration rate on the uptake and translocation of two industrial waste compounds, phenol and nitrobenzene, and one pesticide, 5-bromo-3-sec-butyl-6-methyluracil (bromacil), was examined. Carbon-14 moieties of each compound were provided separately in hydroponic solution to mature soybean plants maintained under three humidity conditions. Bromacil was taken up slower than the other chemicals, had the most 14C translocated to the shoot, and the amount translocated to the shoot responded directly to the rate of transpiration. In contrast, both phenol and nitrobenzene were rapidly lost from solution and bound to the roots. Less than 1.5% of the 14C from phenol or nitrobenzene was translocated to the plant shoots. Increased transpiration rates had little influence on root binding of 14C; however, increasing transpiration rate from low to medium was associated with an increased uptake of nitrobenzene.