ANNEX IU.K. REQUIREMENTS REFERRED TO IN ARTICLE 6
SECTION AU.K. Requirements to be fulfilled by experimental seedlings
The seedlings shall be practically free from harmful organisms or diseases liable to affect quality, or signs or symptoms thereof, which reduce the usefulness and in particular from the following harmful organisms: Rhizoctonia solani Kühn, Phytophtera infestans (Mont.) de Bary, Alternaria solani Sorauer, Alternaria alternata (Fr.) Keissl., Verticillium dahlia Kleb., Verticillium albo-atrum Reinke & Berthold, Potato leaf roll virus, Potato virus A, Potato virus M, Potato virus S, Potato virus X, and Potato virus Y.
The seedlings shall be free from symptoms of blackleg.
The seedlings shall have sufficient varietal identity and varietal purity.
The seedlings shall be found practically free from defects affecting the quality and usefulness as planting material.
SECTION BU.K. Requirements to be fulfilled by true potato seed
The seed shall have sufficient varietal identity and varietal purity.
Diseases and harmful organisms which reduce the usefulness of the seed shall be at the lowest possible level.
Analytical purity, the content of other plant species and germination of the seed shall be sufficient to guarantee the quality and usefulness as experimental material.