Final reports
The subject matter of the reports presented here may have been revisited or may have been wholly or partially superseded in subsequent work funded by GRDC or others. Please check the date of publication and refer to our Policy section before making any decisions based on the content of these reports. Before being able to view any of the Final Reports, refer to the Disclaimer.
1 - 5 of 5 reports matching the query 'UM00020'
1 - 5 of 5 for ‘UM00020’
-
UM00020 - Strategies to ensure longevity of blackleg disease resistance genes…
This project investigated whether rotation of canola varieties derived from different blackleg resistance sources can increase the durability of blackleg resistance as well as reduce yield loss caused by blackleg. Key findings include: 1. The blackleg fungus responds to changes in sources of variety resistance. 2. Blackleg severity remains low when canola is sown into canola stubble, provided…Region: South
Published on 1 Mar 2004
-
GRS77 - Grains Industry Research Scholarship - Factors affecting yield…
This grant funded a PhD project for Susan Sprague supervised by Barbara Howlett and John Kirkegaard. It encompassed two aspects of blackleg disease in canola; (1) root rot, and (2) the breakdown of major gene resistance. Root rot caused by Leptosphaeria maculans is widespread across commercial paddocks in New South Wales (NSW). Root rot develops from foliar infection by airborne ascospores and is …Region: National
Published on 3 Feb 2003
-
UM00021 - Monitoring populations of the blackleg fungus to develop strategies…
Molecular tools essential for identifying genes (avirulence genes) involved in the recognition of resistance genes and monitoring virulence in fungal populations were developed. Key findings The genome of Leptosphaeria maculans is sequenced; this is leading to identification of many molecular markers and candidate avirulence genes. Avirulence gene, AvrLepR3, segregates as a single gene in L.…Region: South
Published on 1 Jul 2004
-
UM149 - Genetic variation and virulence of field populations of the blackleg…
Blackleg disease threatens the success of canola in Australia. Last year yield losses on a new variety with major gene resistance highlighted this. The last national survey of blackleg isolates in Australia was in 1988 when 100 isolates were collected and analysed for virulence by Salisbury and Ballinger. In this project, more than 400 Leptosphaeria maculans isolates from canola production…Region: South
Published on 1 Jul 2001
-
UM00016 - Fungal pathology developments for management of diseases of oilseed…
Sclerotinia stem rot and blackleg are the two major disease constraints to canola production in Australia. More knowledge is required about these pathogens to ensure effective disease control. The aims of this project were to: examine genetic variation and virulence of blackleg and sclerotinia isolates in Australia. determine early events in the infection of canola by blackleg and…Region: South
Published on 1 Jan 2004