Catalogues are based on the registration of plant varieties in EU countries after they have been technically examined there and notified to the Commission. They are published in the Official Journal.
Variety registration is a precondition for the certification of seed.
To be listed, varieties must meet standards on:
- Value for cultivation and use - for agricultural crops.
This value is based on:
- Resistance to harmful organisms;
- Response to the environment;
- Quality characteristics.
- Directive 2002/55
- Directive 2002/53
- Commission Regulation (EC) N° 637/2009 of 22 July 2009 establishing implementing rules as to the suitability of the denominations of varieties of agricultural plant species and vegetable species.