SUMMARY

Jerusalem artichoke (Helianthus tuberosus L.) originated from the east-ern United States and Mexico. Although considerable breeding efforts were made in Europe, the former Soviet Union, and to some degree in Canada, the species remains a neglected crop. Comprehensive characterization data of the genetic resources preserved in different genebanks is rare. A total of 162 Jeru-salem artichoke accessions were preserved by Plant Gene Resources of Canada (PGRC) in 2006. This material was agrobotanically characterized in the grow