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GRDC 2014 Research Summaries

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" Generating baseline data to identify, quantify and manage soil constraints of the western plains NSW.. The project will benchmark and identify suitable sites to research soil constraints; conduct experiments to manage the constraint and make measurements; allowing the hypothesis that management of the constraint will have economic benefits to growers in both the short and long-term to be tested... Not all constraints may occur at any one site so the major constraint needs to be identified to determine whether the constraint can be economically managed...
The aim of the project is to encourage undergraduate agricultural science students into applied research in the grains industry... We are offering one year interships focusing on areas of key need, particularly in crop protection and agronomy... The specific objectives are:-To encourage high quality agricultural science students to pursue applied research as a career-To give students who are interested in applied R & D a broad overview of the fundamentals of applied R & D relevant to the grains industry...
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World demand for durum is predicted to grow substantially in the upcoming years, both as consequence of the demographic boom and for the increasing request of nutritional high quality food... The CWANA represents the most ancient ring where durum and pests/diseases have fought, generating a wild and selected germplasm extremely rich in sources of resistances... Identify water-use efficient germplasm and sources of tolerance to terminal stress (drought x heat) across a range of typical drought prone environments that prevail in the drylands of Australia and CWANA region.3...
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BarleyNo genes for resistance to P neglectus or P thornei have been identified in Australian barley cultivars... Phenotyping undertaken by DAS00116 during 2012, shows that most barley mapping population parents have useful, moderate levels of resistance to both nematodes, but some parents are resistant and others susceptible... The panel will be phenotyped for resistance using glasshouse and laboratory bioassays to identify the biological mechanisms of resistance...
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For over a century Australian wheat breeders, starting with the pioneering efforts of William Farrer, have selected and channelled natural variation to produce wheats with flowering behaviour (phenology) suited to Australian growing conditions... The project will first survey the extent of diversity in the key genes that control flowering behaviour through the Australian wheat breeding pedigree and assess the historical contribution of this variation to successful adaptation to Australian conditions... In summary, the project will provide valuable genotype information and deliver new genet...
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" Genetically improving wheat's ability to outcompete weeds.. The cost of weeds to Australian agriculture is estimated at an annual $4 billion through crop yield loss and seed contamination... The aims of the project are to develop: (1) a robust and repeatable screening methodology for improved weed competitiveness for use in commercial breeding programs; (2) understanding of those morphological/physiological factors contributing to improved competitiveness; and (3) development and release of elite spring wheat germplasm containing traits with improved competitiveness for use as parents i...
Midge resistance was first incorporated into lines in the mid 1980's and today almost 100% of the hybrids commercially available in the marketplace have some level of midge resistance... The test hybrids are then given a resistance rating (a measurement of the amount of grain lost, per visiting female midge per day) from 1 (nil resistance) to 8+ (current maximum resistance commercially available)... The MR ratings, along with other crop information (e.g. crop densities, midge numbers, current market value of grain and cost of chemical control); can then be used in the online Economic Thres...
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Barley is the second most important small grain crop in Australia with an annual production of 6.5Mt... Development of new varieties relies upon the discovery and access to new sources of variation for desirable traits... Whilst all efforts are made by the breeding community to utilize in-country sources of variation at some stage the Australia's relatively small genepool will stymie the search for novel variation...
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" Trait discovery in wild barley using the nested-association mapping population HEB-25.. Wild barley contains the largest pool of genetic diversity due it "s unadapted weed like " nature increased resources are required to incorporate wild barley into mainstream breeding programs... As a result the diversity contained in wild barley has to-date been largely unexploited...
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" Screening for drought tolerance under well-watered conditions: A rapid method to predict wilting point of grain crops.. Permanent wilting point is strongly correlated with adaptation to low water availability in a meta-analysis of more than 300 species, but a correlation between wilting point and drought tolerance in crop cultivars, though expected in principle, has not been tested, due to the difficulty and long time required to assess this trait using previous methods... The outputs of the project will be:(1) demonstration that the wilting point is a reliable indicator of drought tole...
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