Article 8U.K.Requirements concerning the maintenance of pre-basic mother plants and pre-basic material
1.The suppliers shall maintain pre-basic mother plants and pre-basic material in facilities, which are designated for the genera or species concerned, and which are insect proof and ensure freedom from infection through aerial vectors and any other possible sources throughout the production process.
Candidate pre-basic mother plants shall be kept under insect proof conditions, and physically isolated from pre-basic mother plants in the facilities referred to in the first subparagraph, until all tests concerning compliance with Article 9(1) and (2) have been concluded.
2.Pre-basic mother plants and pre-basic material shall be maintained in a manner that ensures that they are individually identified throughout the production process.
3.Pre-basic mother plants and pre-basic material shall be grown or produced, isolated from the soil, in pots of soil-free or of sterilised growing media. They shall be identified by labels ensuring their traceability.
4.By way of derogation from paragraphs 1, 2 and 3 a Member State may be granted authorisation to produce pre-basic mother plants and pre-basic material in the field under non-insect proof conditions for specific genera or species. Such material shall be identified by labels to ensure its traceability. That authorisation shall be granted provided that the Member State concerned ensures that appropriate measures are taken to prevent infection of the plants by aerial vectors, root contact, cross infection by machinery, grafting tools and any other possible sources.
5.Pre-basic mother plants and pre-basic material may be maintained by cryopreservation.
6.Pre-basic mother plants may only be used for a period calculated on the basis of the stability of the variety or the environmental conditions under which they are grown and any other determinants having an impact on the stability of the variety.