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Variation among and within Smooth Bromegrass Collections from Rural Cemeteries

USDA-ARS, U.S. Dairy Forage Research Center, Madison, WI 53706-1108

View larger version (17K): [in a new window]   Fig. 1. Geographic distribution of 30 rural cemeteries, the source of smooth bromegrass germplasm from fence and sod habitats.

View larger version (19K): [in a new window]   Fig. 2. Plots of the first two principal components (PRIN 1 and PRIN2) for 60 smooth bromegrass populations. Fence populations are identified by closed symbols and sod populations by open symbols. Each fence population is labeled with the site number from Fig. 1 and Table 1. Euclidean vectors connect paired fence and sod populations from a single site.

View larger version (33K): [in a new window]   Fig. 3. Frequency distributions of 1500 clone means for fence and sod populations of smooth bromegrass collected from 30 rural cemeteries.