Cultivar responses to long-cane fruit production in raspberry

field in spawn beds. In autumn, when the canes have matured and are dormant, they are lifted from the beds with roots and placed into cold store. When adequate chilling has been accumulated, the longcanes are brought out of the cold store and planted for cropping under the protection of either polytunnels or glass. Production can either precede the main season, by removing the canes from storage as soon as dormancy has been satisfied, or be delayed by leaving the canes in the cold store until later in the season. After fruiting the mature canes are cut back and new spawn is allowed to grow for fruiting in the following year. The new spawn can either be incorporated into an annual or biennial plantation system, or lifted from the fruiting bed and cold stored again.