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Incidence, importance and virulence of Puccinia hordei on barley in New Zealand
Author(s) -
ARNST B. J.,
MARTENS J. W.,
WRIGHT G. M.,
BURNETT P. A.,
SANDERSON F. R.
Publication year - 1979
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1979.tb03863.x
Subject(s) - biology , virulence , rust (programming language) , cultivar , puccinia , hordeum vulgare , population , pathogen , welsh , puccinia striiformis , resistance (ecology) , botany , agronomy , poaceae , microbiology and biotechnology , genetics , mildew , gene , demography , linguistics , philosophy , sociology , computer science , programming language
SUMMARY Brown rust of barley ( Puccinia hordei ) is widespread in New Zealand and causes crop losses in some years. The cultivars presently grown lack adequate genetic resistance but a highly resistant line has been produced. Twelve different virulence combinations were identified in the pathogen population using the Welsh differential lines; there were differences between North Island and South Island isolates; and no virulence was observed for resistance conferred by factors Pa 3 and Pa 7.