Pathogenic Variability of Wheat Stem Rust Pathogen (Puccinia graminis f. sp. tritici) in Hararghe Highlands, Ethiopia

Table 4

The number of ineffective Sr-genes and frequency of Puccinia graminis f. sp. tritici races collected from East and West Hararghe zones in 2016 main cropping season.

Zones	Races	Virulence Spectrum (ineffective Sr resistance genes)	No.	%
East Hararghe	TTGSK	5,21,9e,7b,11,6,8a,9g,9b,9a,9d,10,31,38,McN	1	12.5
	PTJQK	5,9e,7b,11,6,8a,9g,9b,30,9a,9d,31,38,McN	1	12.5
	TTSSK	5,21,9e,7b,11,6,8a,9g,36,9b,30,9a,9d,10,31,38,McN	2	25
	TTKSK	5,21,9e,7b,11,6,8a,9g,9b,30,13+17,9a,9d,10,31,38,McN	2	25
	TRSSK	5,21,9e,7b,11,6,9g,36,9b,30,9a,9d,10,31,38,McN	1	12.5
	TTJQK	5,21,9e,7b,11,6,8a,9g,9b,30,9a,9d,31,38,McN	1	12.5
West Hararghe	TTSSK	5,21,9e,7b,11,6,8a,9g,36,9b,30,9a,9d,10,31,38,McN	3	50
	TTTSK	5,21,9e,7b,11,6,8a,9g,36,9b,30,13+17,9a,9d,10,31,38,McN	1	16.67
	TTSQK	5,21,9e,7b,11,6,8a,9g,36,9b,30,9a,9d,31,38,McN	1	16.67
	TTJQK	5,21,9e,7b,11,6,8a,9g,9b,30,9a,9d,31,38,McN	1	16.67