Germination thresholds for uptake of lamb’s lettuce in the collection are similar to those used for other CGN crops, i.e. 80% for cultivated material and 60% for accessions of wild species. Lamb’s lettuce accessions are regenerated under controlled greenhouse conditions.

To regenerate accessions, seeds are sown in November and plants are overwintered under frost proof greenhouse conditions. Due to the selfing nature of lamb’s lettuce, regeneration can be carried out without specific protective measures to avoid pollination between accessions. A few meters distance is maintained between accessions to minimize the risk of contamination. Seed harvesting takes place in May-June. More detailed information about regeneration procedures can be accessed through the link provided in the right margin of this page.