The Nuclear Stock Association (NSA) accept strawberry and raspberry varieties (candidates) from industry for virus, disease and pest testing to meet the requirements for Pre-Basic (PB) stock as specified by the FPCS regulations (www.gov.uk/guidance/fruit-propagation-certification-scheme).
Any new or established variety or candidate material of potential new varieties can be entered. The NSA accept candidates into the quarantine facility in March/April each year. Strawberry PB testing takes a minimum of eight months. Raspberry testing takes up to two-years to complete.
Plantings for trueness-to-type (TTT) and crumbly fruit testing occur in the year following completion of FPCS testing.
When candidates have successfully completed testing, mother plants enter the NSA Stock House where they are maintained to meet the Pre-Basic standards on an annual basis.