The differences in the average content of crude protein between the locations in 1997 ranged from 40.59 /1.16% in the seed from Denmark (BOR) to 47.49 /1.44% in the seed from Finland (PEI) (Table
4). In 1998 the significantly lowest protein content of 39.29 /0.51% was recorded in the samples from Finland (HEL), and the highest protein content of 47.29 /0.48% was found in the seed from England (Table 4).