How can improved germplasm be developed?
Past genetic research on white clover emphasized large-leafed, ladino white clover, which is better suited to hay production than grazing. White clover adapted to the climate, soil and grazing practices in the Appalachian region is needed to sustain optimal pasture productivity. In 1999, white clover was collected from pastures in the central Appalachian region (see map above). The collection was planted at the USDA-NRCS Alderson Plant Materials Center, Alderson, West Virginia where it is evaluated for leaf size and other vegetative characteristics. Populations developed from these collections will be compared with other experimental strains and with commercial cultivars. White clover plants are transplanted into grass swards and, once established, are grazed by sheep. Persistence, vigor, and stolon spread and density are some of the features evaluated. After a minimum of two years under grazed conditions, the best plants are propagated vegetatively, grown in a greenhouse to ensure max
