Two tests in one year

Naktuinbouw runs DUS tests of vegetable varieties for applications for listing and/or Plant Breeders' Rights in two independent growing cycles.

In many cases, we can perform two growing cycles in one calendar year, for example by using an extra sowing date. This considerably speeds up the DUS test but cannot be done with all vegetable crops. 

About this test

The Naktuinbouw standard procedure is to perform DUS tests in two indepent growing cycles in successive calendar years. On request of the applicant, we can perform both tests in one year.

If your application or the circumstances make this impossible, we will inform you. For example, it might not be possible to change the sowing date, or the test may require too many similar varieties.

For certain crops Naktuinbouw asks UKZUZ (Czech Republic) or UKSUP (Slovak Republic) to perform the second test in the first year. You can visit the trial sites in Roelofarendsveen and the Czech Republic.

Please find below an overview of the crops. If your specific crop is not mentioned, Naktuinbouw will consider your request individually.

Crop

Location second test

Greenhouse crops (except determinate tomato, melon and watermelon)

Naktuinbouw 

Radish - in the open

Naktuinbouw

Lettuce - in the open

Naktuinbouw

Onion

UKZUZ

Welsh or Japanese bunching onion

UKZUZ

White, red, savoy cabbage 

UKZUZ

Kohlrabi

UKZUZ

Pea

UKZUZ

Bean

UKZUZ

Sucker- and popcorn maize

UKSUP

Fees

If you request for two DUS tests in one year, we will charge the (Dutch) testing fee at the start of each trial. The test fees are listed in the list of fees.

Application

You can request two tests in one year by indicating this on the application form.

If UKZUZ or UKSUP performs the second test, please take the submission dates in the Czech Republic or Slovak Republic into account. Naktuinbouw must have time enough to send the material to these locations before these submission dates. The submission dates for CZ and SK are listed on website of the CPVO.