"The trial aimed to help growers choose varieties for yield, quality, disease tolerance and winter hardiness - to allow storage in the ground with less strawing," said trials officer Barrie Smith.
Both varieties yielded around 50 tonnes/hectare across all grades of root in both the November and February lifting. Most of the 14 varieties on trial, which included the open-pollinated Arrow and New White Skin, yielded more than 40 tonnes by the February harvest. Palace scored highest for root shape.
There were big differences in skin finish between varieties with some, such as Countess, improved by overwintering. Picador and Pinnacle scored well for skin finish for both lifting dates. Countess and New White Skin showed significant damage to foliage following November frosts at the trial site in Yorkshire.
Full results, including a grade breakdown for yield, will be available to HDC members.