Rapeseed has originated from crosses in nature between Brassica rapa (field mustard, mizuna) and Brassica oleracea (cabbages). In the breeding Knold & Top is utilizing the huge variation 

within B napus and also making crosses to those very close relatives. We are developing varieties having new traits both for horticulture and agriculture. The breeding for agriculture to be seen on www. knoldogtop.com