Table 2.

Frequency (%) of avirulence alleles in populations of Leptosphaeria maculans isolates from infected cotyledonary leaves of oilseed rape from Great Poland region in central-west Poland

No.	Location	Cotyledon test				Molecular detection
		No. of isolates	AvrLm1 allele	AvrLm6 allele	AvrLm9 allele	AvrLm1 allele	AvrLm6 allele
1	Cerekwica	11	0	100	0	0	100
2	Gora	4	0	100	0	0	100
3	Nowa Wies Ujska	20	0	100	0	0	100
4	Pawlowice	16	6.25	100	0	6.25	100
Mean		51	1.96	100	0	1.96	100