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Catalogue: GRDC Updates
CSIRO has a long track record of making major on-going investment into the genetic improvement of wheat varieties and their agronomy to ensure they fit the target requirements for both the main wheat belt and the High Rainfall Zones of Australia... Underpinning the development of the traits provided to Australian breeders are a series of basic technologies that we are applying to our work... We outline the state of current research efforts supported by public funds (CSIRO, GRDC) with particular emphasis being given to developments that we believe will assist plant breeders in Australian breeding companies to deliver new high quality, well adapted productive wheats that have the ability to counter major constraint factors...
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Catalogue: Ground Cover
'Bio-security, Food Safety and Plant Pathology: The Role of Plant Pathology in a Globalized Economy' was the theme of the 10th International Congress of Plant Pathology (ICPP) hosted by the Chinese Society of Plant Pathology... ' the new technique works by trapping the spores of the pathogen and automatically germinating these in growth medium within the trap.'.. Populations collected from distant regions in Brazil demonstrated that this pathogen has potential for long-distance dispersal, highlighting the need for Australia to maintain strict biosecurity controls when exchanging material between continents...
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Catalogue: GRDC Updates (West)
KEY MESSAGES: Over recent years, CSIRO has developed a range of underpinning technologies and capabilities that will drive major developments in industry profitability and sustainability through yield increases and improved yield stability, quality improvement and stress mitigation into the future... CSIRO has a long track record of making major on-going investment into the genetic improvement of wheat varieties and their agronomy to ensure they fit the target requirements for both the main wheat belt and the High Rainfall Zones of Australia... We outline the state of current research efforts supported by public funds (CSIRO, GRDC) with particular emphasis being given to developments that we believe will assist plant breeders in Australian breeding companies to deliver new high quality, well adapted productive wheats that have the ability to counter major constraint factors...
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Catalogue: GRDC Media
Researchers go head to head to tackle crown rot.. Australia's leading crop geneticists and disease researchers are going 'head to head' in a race to identify new germplasm that will allow cereal crops to yield well under crown rot pressure... A combination of technologies is being applied to rapidly move genes (from multiple sources) into bread wheat, including: 'speed breeding', (aimed at reducing the time taken from sowing to harvest to 12 weeks); high-throughput seedling and nursery screens to allow large population sizes to be evaluated for crown rot reaction; and use of advance molecular genetics tools to identify gene segments that contribute to crown rot resistance and/or tolerance...
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Catalogue: GRDC Media
Researchers go head to head to tackle crown rot.. Australia's leading crop geneticists and disease researchers are going 'head to head' in a race to identify new germplasm that will allow cereal crops to yield well under crown rot pressure... A combination of technologies is being applied to rapidly move genes (from multiple sources) into bread wheat, including: 'speed breeding', (aimed at reducing the time taken from sowing to harvest to 12 weeks); high-throughput seedling and nursery screens to allow large population sizes to be evaluated for crown rot reaction; and use of advance molecular genetics tools to identify gene segments that contribute to crown rot resistance and/or tolerance...
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Catalogue: Ground Cover
The cause of septoria nodorum blotch on wheat, Parastagonospora nodorum , can reduce wheat yields by 10 to 20 per cent despite the application of fungicides and a heavy focus on plant breeding over the past 30 years... Despite missing the ability to make and secrete the encoded proteins, the mutant fungal strain still retained the ability to infect wheat... "Already by providing the option of effectors and markers to breeders, we have helped breed wheat with much better disease-resistant profiles, which has saved the industry millions of dollars through improved yields."..
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Catalogue: GRDC Final Reports
The research has made a significant contribution to our understanding of the mechanisms underlying these traits, identified novel strategies for further or more rapid improvements, and provides a solid foundation for both further research and better management of defects that result in downgrading of quality prior to harvest.. Annual screening of advanced lines from Australian breeding programs suggests little improvement in sprouting resistance despite breeders having had access to resistant germplasm and quantitative trait loci (QTL) information for a considerable period... Our work in Brachypodium presents a novel opportunity to use an undomesticated wild grass to identify novel sources of high dormancy germplasm...
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Catalogue: Ground Cover
Two genes related to dormancy (which prevents untimely germination leading to pre-harvest sprouting) have been discovered.. New gene-discovery techniques also mean an accelerated process for isolating potentially important wheat genes for other traits.. In terms of knowing which grain-growing regions these genes will work in, given that not all varieties are suited across the country, Dr Gubler says it is not known how these genes actually confer dormancy, although the researchers do know the expression of the genes is suppressed by high temperatures during grain development - and this then elevates the risk of PHS...
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Catalogue: Ground Cover
Two genes related to dormancy (which prevents untimely germination leading to pre-harvest sprouting) have been discovered.. New gene-discovery techniques also mean an accelerated process for isolating potentially important wheat genes for other traits.. In terms of knowing which grain-growing regions these genes will work in, given that not all varieties are suited across the country, Dr Gubler says it is not known how these genes actually confer dormancy, although the researchers do know the expression of the genes is suppressed by high temperatures during grain development - and this then elevates the risk of PHS...
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Catalogue: Ground Cover
Dr Lee Hickey (right) inspecting the barley drought-tolerance experiment with Landmark agronomist Paul McIntosh... "In the work, it was found that even tiny amounts of extra water during a terminal drought can make an extraordinary difference to yield," Dr Hickey says... Dr Hickey believes the work to date shows that the problem of out-of-reach soil moisture is a factor in many cropping systems and environments...
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