Four bioassays were conducted to evaluate an ecotype of Poa annua L. from Chattanooga for resistance to prodiamine, pendimethalin, and dithiopyr herbicides. MSmedia, filter-paper, and soil-based bioassays all evaluated root growth response in mature seed from the Chattanooga ecotype and a sensitive control. The hydroponics bioassay evaluated mature tiller response. All the bioassays were able to diagnose the Chattanooga population as resistant to prodiamine and pendimethalin. The soil-based bioassay was able to detect minimal resistance to dithiopyr. Additionally, the Chattanooga population exhibited variability of resistance to dinitroanalines.
| Identifer | oai:union.ndltd.org:UTENN/oai:trace.tennessee.edu:utk_gradthes-1384 |
| Date | 01 May 2008 |
| Creators | Cutulle, Matthew A |
| Publisher | Trace: Tennessee Research and Creative Exchange |
| Source Sets | University of Tennessee Libraries |
| Detected Language | English |
| Type | text |
| Source | Masters Theses |
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