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GRDC 2014 Research Summaries

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The management change required to reduce the impact of these weed issues can be summarised as an 'increased focus on driving the weed seed bank down over time using a more diverse range of weed management tactics.'.. The purpose of the project is to have weeds extension professionals work with northern region weeds researchers to reduce their time load on extension and communication activities... Working alongside northern Weeds Researchers from DAFF Qld, NSW DPI, NGA, GOA and the CQGSG, project officers will ensure they are intimately familiar with the latest weeds research outcomes of th...
In many self-pollinating crops such as wheat, heat stress at the time of pollen development results in pollen sterility and a severe reduction in grain number... Heat and other abiotic stresses appear to affect tapetal development and the timing of tapetal degradation, making it occur prematurely and thereby causing pollen abortion and sterility... Heat-sensitive and tolerant wheat varieties will be subjected to heat stress treatment and the association of faulty tapetal development and premature tapetal degradation with heat-induced sterility Our laboratory has identified genes in wheat ...
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The Australian malting barley industry produces 3 million t pa of malting grade barley that earn growers a premium over feed of on average $40/t... Overall, over 75% of Australian produced malting barley and malt is sold outside Australia, so the Australian industry must compete on quality and price with other international suppliers (Europe, Canada, Black Sea and Sth America)... The Australian industry must avoid the complacency of the 1970-1990 period where Australia "s world leading variety, Clipper, was surpassed for yield and quality by the Canadian variety Harrington and European var...
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The problem is even bigger at the global scale, with total cost of salinity estimated over $11 billion per year... Salinity issue will remain one of the key threats to the global food production in the 21st century... The project will contribute to this goal by providing physiological evaluation and mapping appropriate genes conferring two of such traits, namely transpirational control and oxidative stress tolerance, in cereals...
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" Increasing yield and reducing risk through early sowing in the Southern Grains Region  - Part 2: National Expansion.. Earlier sowing increases the frequency of planting opportunities, and allows more crop to be sown and flower on time... The experiments will examine;- The optimal phenology to allow early sowing at four locations in the southern grains region- The management required in different environments to optimise harvest index of early sown slow maturing wheats- Quantification of any yield penalty associated with slow maturity achieved through vernalisation compared to photo...
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The price of carbon-based fossil fuels, used in the production of nitrogenous fertilisers, is expected to increase substantially in the future... There is an ongoing need to ensure that Australian agriculture evolves with a reliance on legumes that are effectively nodulated and that the benefits of nitrogen fixation from legumes for the farming systems are maximised... Maintain the NSW DPI collection of Rhizobium and non-Rhizobium inoculant germplasm held at AIRG for current and future release for the production of grain / pasture legume and selective non-legume inoculants used in Australi...
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Lupin is the most important grain legume in Australia for acid, well drained, light textured soils in southern Australia... Prices received for lupins over the past 10 years has averaged only $250/tonne... Efforts to both increase the price in world commodity markets as well as increasing grain yield in lupins are needed to enhance the appeal of lupins as a profitable and sustainable crop option in farming systems...
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The contributing factors to soil acidification under the current farming systems are well understood, as are the best practice management systems... For such change in practice to be achieved a whole of industry approach is required and this project will combine a reference committee, on-going education, extension and training of key private and government advisors/consultants who will then support growers into the future... The group will be asked to revisit the major barriers to adoption of liming by growers and propose solutions to overcome them while at the same time consider additiona...
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The project will coordinate the introduction of diverse barley germplasm selected from both the landrace collections and international breeding programs managed by ICARDA... The project will utilise expertise of breeders in both Australia and ICARDA to identify targeted sets of lines that encompass the desired traits and genes required to assist the ongoing development of improved barley varieties for Australian conditions... Key activities will include: i) importation of a diverse sets of at least 100 lines per year selected from across the ICARDA barley nurseries, ii) importation of up t...
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Australian grain growers respond to the pressure of rising cost of production by adopting and adapting new technologies to narrow the gap between their actual yields (Ya) and their water limited yield potential (Yw)... The project will use annual maps of Ya, Yw and Yg to develop an interactive tool that will enable farmers and their advisers to assess the yield gap of their fields relative to Yw and Ya in their statistical local area (SLA)... The decision to aim for a higher yield is a trade-off between profit and risk...
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