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Creator:: Duncan, Corinne M.
Abstract:: Expansion of Juniperus occidentalis into the sagebrush steppe has resulted in significant changes in understory composition. A consequence of increased J. occidentalis dominance may be a depletion of the seed bank. The potential for depletion is problematic because a reduction in the amount of species available from the seed bank...
Resource Type:: Masters Thesis
Full Text:: thresholds based on seed density. Two eastern Oregon sagebrush steppe sites where chosen to represent the

Creator:: Leary, Ryan
Abstract:: Krascheninnikovia lanata (winterfat) is a valuable forage species with an average of 10% crude protein during winter when there are few nutritious options for livestock and wildlife. However, excessive grazing throughout the west has negatively impacted survival of winterfat stands. We hypothesized that four years rest from dormant season livestock...
Resource Type:: Masters Thesis
Full Text:: the Oregon State University Seed Lab using the Tetrazolium Test (TZ) (AOSA 2000). The TZ is a

Creator:: Estes, Mark G.
Abstract:: The effect of seedbed preparation on the emergence and survival of winterfat (Krascheninnikovia lanata (Gueldenstaedt)) and squirreltail (Elymus elymoides (Raf.) Swezey)) seedlings was determined, while quantifying nutritional changes through the dormant season for four range species. In November of 2004 twenty 9m x 8m plots were randomly prepared with one...
Resource Type:: Masters Thesis
Full Text:: treatments (rip, harrow, till, or control) for both winterfat and squirreltail. Seed was hand broadcasted

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