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A Comparison of the Pathogenicity of Gloeotinia temulenta Isolates from the United Kingdom and the Netherlands in Relation to their Use as Selective Agents in a Breeding Programme
Author(s) -
Wright C. E.,
Sproule T. R. M.
Publication year - 1969
Publication title -
plant pathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.928
H-Index - 85
eISSN - 1365-3059
pISSN - 0032-0862
DOI - 10.1111/j.1365-3059.1969.tb00483.x
Subject(s) - biology , spore , perennial plant , cultivar , botany , veterinary medicine , medicine
SUMMARY Perennial ryegrass clones of known disease reaction, ranging from resistant to very susceptible, were used as differentials to determine if the strains of Gloeotinia temulenta which, for the first time in 1965, caused severe infection in seed crops in the Netherlands were the same as those already present in the British Isles. Although mixed spores from Netherlands isolates caused slightly lower infection than mixed spores from the British Isles, the clones were ranked very similarly in infection tests when spores from both sources were used, and it is suggested that the races were probably the same. It was concluded that mixed spores from either country would be equally efficient in selecting resistant Plants for use in breeding disease‐resistant cultivars of perennial ryegrass.