The Use of Pathotype Data for the Selection and Development of Barley Lines with Useful Resistance to Scald.

Resistance in barley to scald caused by is readily overcome as virulent pathotypes in the pathogen population are selectively favoured over less virulent pathotypes. Diverse sources of resistance amongst host accessions have been found upon screening a wide array of accessions from around the world. Deciding which of these is of greatest value, and which are different from each other, takes a much greater investment of time and effort.