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resistance gene

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Catalogue: GRDC Final Reports
The project has focused on monitoring blackleg populations for virulence by exploiting markers for avirulence (Avr) genes in the fungus, which are complementary to resistance (Rlm) genes in the plant... Selection pressure acting on one avirulence gene can also influence other avirulence genes that are closely linked... Only two genes (LmCys2 and AvrLm6) have mutations in attacking isolates and are considered candidate genes...
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Catalogue: GRDC Final Reports
The aim of the project was to clone the scald resistance gene Rrs1 from barley and identify more resistant barley germplasm that is not used by barley breeders... Results show that Rrs1 resides at a genome region hosting a suite of 10-14 similar genes that are candidates for resistance genes against different scald pathotypes... The aim of the research is to generate molecular tools that allow the identification of scald infection objectively (no subjective scoring) and significantly earlier than the appearance of leaf symptoms...
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Catalogue: GRDC Factsheets
The best means for controlling powdery mildew is by avoiding more susceptible wheat and barley varieties... if powdery mildew is allowed to develop in crops, there is a serious risk of fungicide resistance developing as well as loss of resistance in current and future varieties... Spraying needs to be done early with full rates of fungicide...
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Catalogue: GRDC Factsheets
The best means for controlling powdery mildew is by avoiding more susceptible wheat and barley varieties... if powdery mildew is allowed to develop in crops, there is a serious risk of fungicide resistance developing as well as loss of resistance in current and future varieties... Spraying needs to be done early with full rates of fungicide...
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Catalogue: GRDC Factsheets
The best means for controlling powdery mildew is by avoiding more susceptible wheat and barley varieties... if powdery mildew is allowed to develop in crops, there is a serious risk of fungicide resistance developing as well as loss of resistance in current and future varieties... Spraying needs to be done early with full rates of fungicide...
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Catalogue: NVT Online Papers
Choose a cultivar with adequate blackleg resistance for your region... For individual site results consult the NVTonline website... Background: Blackleg disease can be minimised by a number of factors including sowing cultivars with high blackleg resistance, avoiding sowing in close proximity to last year's stubble and applying fungicides (see the current Blackleg Management Guide for details www.grdc.com.au)...
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Catalogue: NVT Online Papers
Choose a cultivar with adequate blackleg resistance for your region... For individual site results consult the NVTonline website... Background: Blackleg disease can be minimised by a number of factors including sowing cultivars with high blackleg resistance, avoid sowing canola in close proximity to last year's stubble and applying fungicides (see the current Blackleg Management Guide for details - www.grdc.com.au)...
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Catalogue: GRDC Research Summaries
Canola plays a crucial role in Australian agriculture as a cash crop and through its rotational benefits to subsequent cereal crops... Blackleg is managed by breeding for resistance and crop management practices that minimize stubble inoculum... The blackleg fungus is adept at overcoming cultivar resistance leaving many crops vulnerable to significant yield loss...
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Catalogue: GRDC Research Summaries
Canola plays a crucial role in Australian agriculture as a cash crop and through its rotational benefits to subsequent cereal crops... Blackleg is managed by breeding for resistance and crop management practices that minimize stubble inoculum... The blackleg fungus is adept at overcoming cultivar resistance leaving many crops vulnerable to significant yield loss...
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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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