You are here

major resistance gene

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...
Related categories:
Catalogue: Ground Cover
New breeding strategy offers more durable crop improvement.. Dr Singh says agriculture has to move on from 'catch-up' breeding, in which a trait addresses an issue but the benefit is temporary, due to the environmental or disease challenge changes... Dr Sybil Herrera works with Dr Singh on the GRDC-supported Durable Rust Resistance in Wheat initiative, led by Cornell University, trying to identify the genes that provide APR...
Related categories:
Catalogue: GRDC Media
Growers who observe powdery mildew on barley varieties rated 'resistant' are urged to contact the Centre for Crop and Disease Management (CCDM) at Curtin University to arrange to send samples for analysis... Barley powdery mildew is one of Western Australia's major cereal diseases and in recent years has developed resistance to older triazole (DMI) fungicides and evolved virulence on barley varieties with levels of resistance... "We hope to introduce similar genes into a larger range of varieties, increasing the choice of resistant varieties available to growers and ensuring robust resistance to powdery mildew," he said...
Related categories:
Catalogue: GRDC Media
Consider powdery mildew virulence and control when choosing barley varieties in 2014.. A permit has been issued in WA for the use of the Group 5 spiroxamine fungicide Prosper 500 EC as a triazole break for powdery mildew early in the season... Prosper 500 EC offers an alternative mode of action for control of powdery mildew in barley that will help to extend the life of other fungicides...
Related categories:
Catalogue: GRDC Media
Consider powdery mildew virulence and control when choosing barley varieties in 2014.. A permit has been issued in WA for the use of the Group 5 spiroxamine fungicide Prosper 500 EC as a triazole break for powdery mildew early in the season... Prosper 500 EC offers an alternative mode of action for control of powdery mildew in barley that will help to extend the life of other fungicides...
Related categories:
Catalogue: Ground Cover
Fungicide resistance has compromised triazole (DMI or Group 3) control of barley powdery mildew in Western Australia.. Fungicides are best used before significant disease levels appear in crops.. A permit has been issued for the use of Prosper 500 EC, containing the active ingredient spiroxamine, to control powdery mildew in barley in WA, valid from 1 April 2013 to 31 March 2016 ( permits.apvma.gov.au/PER14012.PDF )..
Related categories:
Catalogue: GRDC Media
WA research highlights a need to prepare for barley powdery mildew in 2013.. New research highlights that barley varieties commonly used in WA have increased risk of susceptibility to powdery mildew... Prosper 500 EC is a Group 5 fungicide offers an alternative mode of action for control of powdery mildew in barley that will help to extend the life of other fungicides...
Related categories:
Catalogue: GRDC Media
Watch out for powdery mildew on resistant varieties.. Growers who observe powdery mildew on barley varieties rated 'resistant' are urged to contact the Centre for Crop and Disease Management (CCDM) at Curtin University to arrange to send samples for analysis... Barley powdery mildew is one of Western Australia's major cereal diseases and in recent years has developed resistance to older triazole (DMI) fungicides and evolved virulence on barley varieties with levels of resistance...
Related categories:
Catalogue: GRDC Media
WA research highlights a need to prepare for barley powdery mildew in 2013.. New research highlights that barley varieties commonly used in WA have increased risk of susceptibility to powdery mildew... Prosper 500 EC is a Group 5 fungicide offers an alternative mode of action for control of powdery mildew in barley that will help to extend the life of other fungicides...
Related categories:
Catalogue: GRDC Final Reports
Over the three-year course of the project, a total of 3,386 barley lines were evaluated in 24,155 assays... In 2006, the project was inundated with requests from barley breeders, and our facilities were used to capacity for this purpose throughout 2006, with 520 lines and a total of 12,480 plants assayed, and 61 lines (1,464 assays) into 2007... All seedling tests in this project were performed using a set of four specific isolates with characteristic pathotypes on the barley differential set...
Related categories:

Pages