title: Sources of resistance to powdery mildew in barley.
mesh_terms: D002523:Edible Grain / Q000382:microbiology*; D014644:Genetic Variation; D005827:Genetics, Microbial; D005838:Genotype; D001467:Hordeum / Q000145:classification / Q000382:microbiology*; D009154:Mutation; D010935:Plant Diseases; D010942:Plant Viruses / Q000145:classification / Q000302:isolation & purification / Q000472:pathogenicity*