Immigration of the barley mildew pathogen into field plots of barley
Article first published online: 3 NOV 2003
Volume 45, Issue 6, pages 1071–1076, December 1996
How to Cite
O'Hara, R. B. and Brown, J. K. M. (1996), Immigration of the barley mildew pathogen into field plots of barley. Plant Pathology, 45: 1071–1076. doi: 10.1046/j.1365-3059.1996.d01-192.x
- Issue published online: 3 NOV 2003
- Article first published online: 3 NOV 2003
Immigration of the barley powdery mildew pathogen (Erysiphe graminis f.sp. hordei) into field plots of the spring barley variety Tyra (carrying the resistance allele Mla1) was investigated. Spores were trapped from the top of the plot canopies, as well as from control plots of wheat with no barley nearby. Comparison of the frequencies of virulent and avirulent single-colony isolates showed that the amount of immigration, relative to the amount of inoculum being produced within the plot, reduced very rapidly, until it could not be detected in the middle of the growing season (mid-June).