You are not currently logged in.
Access JSTOR through your library or other institution:
If You Use a Screen ReaderThis content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Effect of Petroleum Oils on the Uptake of Atrazine-¹⁴C by Corn
G. E. Coats and C. L. Foy
Vol. 22, No. 3 (May, 1974), pp. 220-226
Stable URL: http://www.jstor.org/stable/4042364
Page Count: 7
You can always find the topics here!Topics: Surfactants, Viscosity, Corn oil, Harvesting seasons, Test ranges, Petroleum, Plants, Corn, Washing, Emulsions
Were these topics helpful?See somethings inaccurate? Let us know!
Select the topics that are inaccurate.
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Preview not available
Selected paraffinic and naphthenic phytobland oils used as adjuvants markedly enhanced the foliar uptake and acropetal translocation of ring-labeled atrazine [2-chloro-4-(ethylamino)-6-isopropylamino-s-triazine] by corn (Zea mays L. 'VPI 646'), when compared with atrazine-¹⁴C applied with nonionic polysorbate surfactant or in aqueous 25% methanol alone. Generally, ¹⁴C uptake increased with increasing concentration (1.25 to 20.0%) of a 100-sec viscosity paraffinic oil and with time (up to 32 hr) after application. No consistent additional promotion of atrazine-¹⁴C uptake was derived from the use of emulsifier concentrations above 2.0% in the oil of a 10% oil-in-water emulsion. With a few exceptions, paraffinic and naphthenic oils of comparable viscosities were about equally effective as penetrant aids for atrazine. For both the paraffinic and naphthenic series, the 100-sec viscosity oils appeared to be slightly better penetrant aids than comparable 70, 150, and 200-sec oils.
Weed Science © 1974 Weed Science Society of America