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Two tests in one year

Naktuinbouw performs DUS tests for Plant Breeders' Rights and/or listing on the National list of vegetable varieties in two independent growing cycles. In many cases, we can perform two growing cycles in one calendar year. This significantly accelerates the DUS test.

About the tests

Naktuinbouw standardly performs the DUS tests in two growing cycles in consecutive years. We can perform two tests in one year for a number of crops at the applicant's request. For certain crops, we make use of an additional test at our colleagues ÚKZÚZ in the Czech Republic or ÚKSÚP in the Slovak Republic.

You can find a list of these crops below. If your crop is not listed, Naktuinbouw may assess the request individually.

CropLocation second test
Glasshouse crops (except cucumber type Slicer, determinate tomato, melon and watermelon)
Naktuinbouw
Gherkin - solely in the open
Naktuinbouw
Radish - in the open
Naktuinbouw
Lettuce - in the open
Naktuinbouw
Onion
ÚKZÚZ
Welsh or Japanese bunching onion
ÚKZÚZ
White / red savoy cabbage
ÚKZÚZ
Kohlrabi
ÚKZÚZ
Pea
ÚKZÚZ
Bean
ÚKZÚZ
Zea and popcorn maizeÚKSÚP

Frequently asked questions (FAQ)

Where can I find the testing fees for two tests in one year?

If you would like to have two DUS tests in one year, we will charge the (Dutch) testing fees per test at the start of the test. You can find the testing fees on the website of the Board for Plant Varieties.

How to apply for two tests in one year?

You can apply for two tests in one year by indicating this on the application form. The application form can be found here.

If ÚKZÚZ or ÚKSÚP performs the second test, you must take into account the submission dates in the Czech Republic (CZ) or Slovak Republic (SK) respectively. Naktuinbouw must be able to send the material to them before these submission dates. You can find the submission dates for the Czech Republic (CZ) and Slovak Republic (SK) on the website of the CPVO.

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