Marian van Leeuwen chairperson UPOV-TWV

News publication date: 25 June 2019

The Netherlands will be chairing UPOV-TWV as from 2021. Marian van Leeuwen, DUS specialist in vegetabels at Naktuinbouw, has been put forward for this.


The Technical Working Party for Vegetables (TWV) of UPOV is an international working group of experts in DUS testing of vegetables. In UPOV, the worldwide organisation for the enhancement of Breeders’ Rights, more than 70 countries are participating.

During the meeting in May 2019 in Seoul, the working group unanimously accepted the proposal to succeed Romana Bravi from Italy. Marian will be chairing the working group for a period of 3 years. The TC (Technical Committee of UPOV) will confirm this in their meeting in October.
Naktuinbouw is happy that Marian can use her many years of experience in UPOV and we congratulate her with this appointment.

In the current 3-year period Henk de Greef is chairperson of UPOV-TWO, the Technical Working Party for Ornamentals.