Germplasm regeneration
Depending on accessions, cassava germplasm maintained in the genebank requires subculturing every 6 to 18 months. Ideally, 10 seedlings of each accession are maintained in the genebank. All in vitro stored accessions are screened every 6 weeks. Accessions showing obvious sign of deterioration (drying leaves, dry medium, etc.) and/or which stock is low (less than 4 seedlings) are sent for multiplication (see section 3).