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major gene resistance

Catalogue: GRDC Updates
The large areas sown to canola in 2011 and the predicted increases in the area sown to canola in 2012 in southern NSW and northern Victoria will increase blackleg severity and increase the likelihood of yield losses... The aim of the work was to investigate the use of foliar fungicides on canola seedlings as an alternative or in addition to the application of a seed dressing for blackleg control in areas of high disease pressure... Results from the field experiments suggest that the addition of a seed dressing and the application of a foliar fungicide gave the best protection...
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Catalogue: GRDC Final Reports
" Monitoring populations of the blackleg fungus to develop strategies for deployment of resistance genes in oilseed Brassicas UM00021 Start Date: 01/07/2004.. The frequency of virulent isolates increases rapidly resulting in this resistance being overcome... Sprague SJ, Hayden HL, Brun H, Marcroft SJ, Pinochet X, Rouxel T, Balesdent MH, Howlett BJ (2006) Major gene resistance in Brassica napus (oilseed rape) is overcome by changes in virulence of populations of Leptosphaeria maculans in France and Australia...
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