Tuesday, November 6, 2007
157-3

Characterization of Creeping and Meadow Foxtail (Alopecurus spp.) Accessions for Agronomic Traits.

Joseph Robins, USDA-ARS-FRRL, USDA-ARS Forage and Range Research Laboratory, 6300 Old Main Hill Utah State University, Logan, UT 84322-6300

Creeping (A. arundinaceus) and meadow (A. pratensis) foxtails are well-adapted perennial grass species for wet meadows and pastures. While similar in many characteristics the two species exhibit different growth patterns. Creeping foxtail is rhizomatous and meadow foxtail is caespitose. Although difficult to establish, these species are tolerant of high water tables, including saturated soils, and are very winter hardy. Improved stand establishment and delayed maturity would enhance the utility of these species in the Intermountain U.S. Initial breeding efforts of these species in the Intermountain U.S. focus on characterization of the PI accessions of both Alopecurus species for various agronomic traits. Sixty accessions of meadow foxtail and 50 accessions of creeping foxtail were placed at the Utah State University Richmond Research Farm (Richmond, Cache Co., UT) in the spring of 2005 in a randomized complete block design consisting of four complete blocks. This farm has a high water table and is an appropriate location for the characterization of these species. Collected data included forage yield, seed yield, maturity, and rhizome spread. The best accessions will be identified and selected for the development of breeding populations in these species.