CTPS Potato: 4 new varieties proposed for registration

At the meeting of the Potato CTPS section held on 23 January, four new varieties of ware potatoes were proposed for inclusion on List A:

• 2 for the Firm flesh category

• 1 with the mention Agroecology – Conservation and eligible for CEPPs from the 2017-17 Action sheet “Reducing the number of fungicide treatments in potatoes through the use of varieties with low susceptibility to late blight”

• 1 presenting double resistance to cyst nematodes (Globodera rostochiensis and Globodera pallida)

During this section, a presentation was given on the IMPROVE research programme (Methodological Innovation for Evaluating Potato Resistance to Virus Y), funded by the CASDAR knowledge call for projects. This programme, funded by CASDAR and led by inov3PT, has made it possible to assess the suitability of new trial sites, test a range of varieties with varying degrees of susceptibility to the Y virus, test new methods of inoculum production, develop new techniques for detecting the virus, in particular detection by qPCR, and finally carry out an economic study on the costs of the evaluation system. The changes affecting the protocol for assessing virus Y in the context of potato VSCU were presented and approved by the section. The financing plan for the additional costs incurred remains to be defined.

In addition, the findings of the working group dedicated to the VSCU assessment of TPS (True Potato Seeds) were presented. The section approved the merits of the proposed system and encouraged the experts to continue their work in order to finalise the details of the protocol. An estimate of the cost of this system must also be carried out.

You can download the document presenting the VSCU characteristics of these new varieties by following the link: Final VSCU results for potatoes 2026