The late-maturing accessions are now included in the USDA germplasm collection as PI 493149 through PT 493308. Dr. Gomez would like to place the documentation for the collection on computer files. There also is a need to expand the collection to represent all of the Iberian Peninsula. Morphological markers for cultivar identification Dr. Gomez is fluent in English. The research with annual medics was initiated in 1980 and a germplasm collection of 400 accessions is maintained.
Major problems are soil acidity and inoculation failure.
Medicago polymorpha grows very well if it is nodulated. However, subclover produces more than the medics in areas where the clover is adapted. Breeding objectives for medic include spineless pods, more hard seeds, and increased seed yield. Trifolium glomeratum is common in Extremadura and dominates pastures if superphosphate is applied. Forage production by this species is concentrated in early spring.