Guidance

VCU protocols and procedures for testing agricultural crops

Protocols and procedures for testing the value for cultivation or use (VCU) of agricultural crops.

As part of the application process to add an agricultural crop to the National List, the plant must be tested to confirm whether the variety has satisfactory value for cultivation or use (VCU).

The growing trials for all crops, except potatoes, are organised by the British Society of Plant Breeders (BSPB). The trials for potatoes are organised by Science and Advice for Scottish Agriculture (SASA).

These trials are normally carried out for a minimum of 2 years, comparing the performance of candidate varieties with varieties already on the National Lists.

The trials use the VCU protocols and procedures approved by the Plant Variety and Seeds Committee, which represents the national authorities on seed issues to establish VCU.

Protocols

Crops

Trials

Procedures - for 2018 harvest

Minor crops

Procedures - for 2017 harvest

Minor crops

Procedures - for 2014 harvest

Trials

Published 15 June 2015
Last updated 25 April 2018 + show all updates
  1. Potato protocol updated
  2. Added harvest 2018 procedures - grasses and white clover
  3. Added procedure for harvest 2018 - sugar beet
  4. Added procedure for harvest 2018 - maise, red clover, fodder kale, forage rape and forage rye.
  5. Added procedure for harvest 2018 - spring oilseed rape and winter oilseed rape
  6. Updated harvest 2018 procedure - cereals and linseed
  7. Added procedure for harvest 2018 - field beans
  8. Updated harvest 2018 procedure - cereals
  9. Updated harvest 2018 procedure - cereals
  10. Added harvest 2018 procedures - cereals, field peas, minor crops, linseed, mustard, soya bean, spring lupin and sunflower
  11. Updated VCU protocol sugar beet
  12. Updated sugar beet 2017 harvest procedures
  13. Harvest 2017 procedures - added potato and sugar beet, updated spring oilseed rape. Removed harvest 2016 procedures.
  14. Added harvest 2017 procedures - grasses, red clover and white clover
  15. Added harvest 2017 procedures - forage and maize and fodder kale
  16. Added harvest 2017 procedures - forage rape, forage rye and swede in minor crops
  17. Updated field peas 2017 harvest procedures
  18. Updated spring oilseed and linseed 2017 harvest procedures
  19. Updated cereal and winterseed oil harvest 2017 documents
  20. Updated field beans and field peas 2017 harvest procedures
  21. Added spring oilseed rape procedure for 2017 harvest
  22. Added cereals (wheat, barley, oats, triticale, rye, spelt wheat) procedure for 2017 harvest
  23. Procedures for 2017 harvest published
  24. Added grasses (perennial, Italian and hybrid ryegrass, Timothy and festulolium) and white clover procedures for 2016 harvest
  25. Added procedures 2016 harvest - forage and grain maize, red clover and lucerne, fodder kale, forage rape, forage rye and swede
  26. Procedures for potato for 2016 harvest published
  27. Sugar beet harvest 2016 procedure added
  28. Published cereals VCU procedures harvest 2016
  29. Added field beans, field peas and spring lupin to procedures for 2016 harvest.
  30. Procedures for oilseed rape for 2016 harvest published.
  31. Published VCU procedure for red clover and lucerne for 2015 harvest
  32. Published VCU procedure for cereals for 2015 harvest
  33. Procedures for 2015 harvest documents published.
  34. First published.