Sign up for our daily Newsletter and stay up to date with all the latest news!

Subscribe I am already a subscriber

You are using software which is blocking our advertisements (adblocker).

As we provide the news for free, we are relying on revenues from our banners. So please disable your adblocker and reload the page to continue using this site.

Click here for a guide on disabling your adblocker.

Sign up for our daily Newsletter and stay up to date with all the latest news!

Subscribe I am already a subscriber

Breeders welcome the adoption of the new Explanatory Notes on Essentially Derived Varieties by the UPOV Council

After four years of debate, the UPOV Council, in its 57th Session on October 27, 2023, adopted the new Explanatory Notes (EXN) on Essentially Derived Varieties, which replaced the EXN of 2017.

During the revision process, the worldwide breeders’ community was represented by the International Seed Federation (ISF), the International Community of Breeders of Horticultural Varieties (CIOPORA), Croplife International (CLI), Euroseeds, Seed Association of the Americas (SAA), the Asia and Pacific Seed Association (APSA) and the African Seed Trade Association (AFSTA).

The new EXN clarifies that Varieties with single parent (“mono-parental” varieties) resulting, for example, from mutations, genetic modification, or genome editing are predominantly derived from their initial variety.

Additionally, there is no upper limit as to the number of differences which may result from the act of derivation. The number of differences between an essentially derived variety (EDV) and the initial variety is therefore not limited to one or very few differences but may vary considering different methods of derivation.

An important clarification in the adopted document is that the differences which result from the act of derivation may also include essential characteristics. This means that in case a predominantly derived variety differs in 1 or more essential characteristics, it does not fall outside the EDV scope of the initial variety that was used in the creation of the derived variety.

The new Explanatory Notes are in line with the understanding of the breeders’ community on the principle of EDV. The breeders ask all UPOV members to adapt their national Plant Breeder’s Rights legislation to this interpretation of the EDV principle so that a consistent approach with respect to EDV will be established.

For more information:
International Seed Federation
Chemin du Reposoir 7
I 1260 Nyon, Switzerland
Tel.: +41 22 365 4420
Fax: +41 22 365 4421
[email protected]

Publication date: