Northeast Research and Demonstration Farm
Increasing alfalfa forage yield is a priority of the Iowa State forage-breeding program. One way to increase yields may be to develop hybrid alfalfa cultivars. Crosses between common, purple flowered (sativa) alfalfa and wild, yellow-flowered (falcata) alfalfa often produce hybrids that have significant yield improvements. The objective of this experiment was to identify falcata populations that produce hybrids superior to sativa cultivars or hybrids.
Iowa State University
Riday, Heathcliffe and Brummer, E. Charles, "Heterosis in a Broad Range of Alfalfa Germplasms" (2003). Iowa State Research Farm Progress Reports. 1501.