The oat collection is a collection of 399 accessions including 379 spring and 10 winter types of A. sativa and nine accessions of four other species: A. barbata, A. brevis, A. orientalis, A. sterilis, and A. strigosa. Of one accession the species name is not known.
The collection of cultivated oats consists of 206 cultivars, 65 landraces and 101 breeding lines. The population type of 18 accessions is unknown. The collection is largely of European (N=288) and North American (N=50) origin. Only a limited number of accessions are from the centres of origin of Avena (Near East and Mediterranean). The collection includes 79 accessions from the Netherlands, amongst them ten landraces from the Netherlands such as Zwarte President, Naakte Haver uit Overasselt, Gele Timmermans and several Tros oats.