Selections are made among off-spring from crosses between well defined parental clones. Varieties are then registered and certified for plant protection within EU. The plant breeding work of willow is performed by techniques that have been learned after many years of experience with the crop. The first crosses were made early in 2011 and a number of clones/potential varieties are now established on our experimental field at Billeberga in south of Sweden.
Six varieties are today registered/certified at the EC Plant Variety Office. One of these, variety Wilhelm, is registered/certified also in Ukraine.
- Wilhelm, a cross between the varieties Sherwood and Björn
- Erik, a cross between the varieties Tordis and Björn
- Ester, a cross between the varieties Linnéa and ”Shrubby willow”
- Winter, a cross between the varieties Tordis and a winter hardy Russian clone
- Emma, a cross between the varieties Tordis and Olof
- Bella, a cross between the varieties Inger and Wilhelm
Coming generation of varieties will be made for drier and warmer regions, but also material for colder areas. This material will be placed in observation field trials on such places for evaluations.