Comparison of Bioassay Techniques for Detecting Imazaquin in Soil
| Autor: | Daniel L. Colvin, Donn G. Shilling, Barry J. Brecke, Keith A. O'Bryan |
|---|---|
| Rok vydání: | 1994 |
| Předmět: |
0106 biological sciences
Imazaquin Chemistry 04 agricultural and veterinary sciences Plant Science Phytopharmacology 01 natural sciences Zea mays 010602 entomology chemistry.chemical_compound Horticulture Soil water Botany 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Bioassay Ecotoxicology Phytotoxicity Poaceae Agronomy and Crop Science |
| Zdroj: | Weed Technology. 8:203-206 |
| ISSN: | 1550-2740 0890-037X |
| Popis: | Three corn root bioassays were evaluated for detecting imazaquin in soil. Two techniques, one which utilized a cone-shaped tube as the growth container and another, a petri dish, were compared to a method that utilized a thin layer of soil between two 20 by 20 cm glass plates. Corn root growth responded logarithmically to imazaquin regardless of bioassay method. Corn was most sensitive to low imazaquin concentrations when grown using the glass plate apparatus. At a low concentration (0.5 ng/g) of imazaquin, corn root length was reduced 6% using the cone-tube, 2% using the petri dish, and 24% using the glass plate method. In contrast, the cone-tube method provided a better measure of high imazaquin concentration (200 ng/g) than the other methods. |
| Databáze: | OpenAIRE |
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