%A Anon %T Organic Centre Wales Technical Note 2: Evaluation of S?rpo potato varieties, 2004 %X Potato blight Phytophora infestans is a major limiting factor on potato production and is a particular problem for organic growers in Wales. The use of blight resistant varieties is an important strategy in the management of late blight. Hungarian S?rpo varieties appear to have greater late-blight resistance than any currently available to Welsh growers. In 2004, ADAS Pwllpeiran undertook field trials of 19 S?rpo varieties provided by the S?rv?ri Research Trust, with the following objectives: %D 2005 %K S?rpo, potato blight, Phytophora infestans, resistance %I Organic Centre Wales %L orgprints10805