Incidence, importance and virulence of Puccinia hordei on barley in New Zealand |
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| Authors: | B J ARNST J W MARTENS† G M WRIGHT P A BURNETT F R SANDERSON |
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| Institution: | Crop Research Division, Lincoln, Dept. of Scientific and Industrial Research, Private Bag, Christchurch, New Zealand;*Plant Diseases Division. Lincoln, as above.;?Agriculture Canada, Research Station, 195 Dafoe Road, Winnipeg, Canada R3T 2M9. Contribution No. 848. |
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| Abstract: | 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. |
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