Skip to Main Content
Emergence and growth of four winterfat accessions in the presence of the exotic annual cheatgrassAuthor(s): Ann L. Hild; Jennifer M. Muscha; Nancy L. Shaw
Source: In: Sosebee, Ronald E.; Wester, David B.; Britton, Carlton M.; McArthur, E. Durant; Kitchen, Stanley G., comps. Proceedings: Shrubland dynamics -- fire and water; 2004 August 10-12; Lubbock, TX. Proceedings RMRS-P-47. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 147-152.
Publication Series: Proceedings (P)
Station: Rocky Mountain Research Station
PDF: Download Publication (430 B)
DescriptionWinterfat (Krascheninnikovia lanata [Pursh] A. D. J. Meeuse & Smit; synonym: Ceratoides lanata [Pursh] J. T. Howell) is a desired shrub species and an integral component of salt desert shrublands in the Intermountain West. On the Snake River Birds of Prey National Conservation Area in southwestern Idaho, extensive loss of winterfat-dominated communities has been linked to altered fire regimes associated with cheatgrass (Bromus tectorum L.) invasions. Post-fire revegetation efforts are often hampered by the quick emergence of cheatgrass seedlings with autumn or spring moisture. We compare the establishment of four winterfat populations (Birds of Prey; northeastern New Mexico; Northern Cold Desert Select Germplasm; and Open Range Tested Germplasm) with and without cheatgrass competition. Seed of each accession was planted in 15 cm diameter pots containing four densities of cheatgrass (0, 2, 4, and 8 plants per pot) in a greenhouse. Plant measurements were made 4, 5, 7, 9, 11, 13, 15, 17, 19, and 21 weeks after planting. Measurements included winterfat survival, height and two canopy diameters, and cheatgrass height and number of leaves and culms per plant. Initial establishment was greatest for the New Mexico winterfat source at all cheatgrass levels. Growth of this source exceeded the others in the absence of cheatgrass. However, the presence of cheatgrass depressed growth of all sources by at least 90 percent. Establishment of winterfat on cheatgrass infested rangelands necessitates seeding on sites where cheatgrass densities are low or reduced by site preparation procedures.
- You may send email to email@example.com to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationHild, Ann L.; Muscha, Jennifer M.; Shaw, Nancy L. 2007. Emergence and growth of four winterfat accessions in the presence of the exotic annual cheatgrass. In: Sosebee, Ronald E.; Wester, David B.; Britton, Carlton M.; McArthur, E. Durant; Kitchen, Stanley G., comps. Proceedings: Shrubland dynamics -- fire and water; 2004 August 10-12; Lubbock, TX. Proceedings RMRS-P-47. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 147-152.
Keywordswildland shrubs, fire, water, winterfat, Krascheninnikovia lanata [Pursh], Ceratoides lanata, salt desert shrublands, cheatgrass, Bromus tectorum L., Intermountain West
- Vegetation dynamics at a Mojave Desert restoration site, 1992 to 2007
- Bromus tectorum expansion and biodiversity loss on the Snake River Plain, southern Idaho, USA
- Treating downy brome with herbicide and seeding with native shrubs
XML: View XML