Ground Cover Supplement : GC Supplement - Cereal foliar fungal diseases
Barley diseases 10 international gene search for barley rust resistance australian cereal rust control Program director Professor robert Park is leading a new grdc project to identify fresh sources of genetic resistance against the barley rust pathogen and insert these into australian barley breeding lines By Janet Paterson MORE THAN 50 barley lines with durable resistance to barley leaf rust should be entering barley breeding programs by the end of 2016 on the back of concerted genetics research by the Australian Cereal Rust Control Program (ACRCP). University of Sydney project leaders Professor Robert Park and Dr Davinder Singh, and collaborators Dr Lee Hickey and Laura Ziems from the University of Queensland, say the research will identify and stack multiple resistance genes into Australian barley breeding material, which in turn will deliver strong resistance to barley leaf rust. "Leaf rust is the most common and damaging rust disease on barley in Australia, causing an estimated 30 per cent yield loss each year and costing the industry about $20 million in lost yield potential and control costs," says Professor Park, who has worked on barley leaf rust resistance for nearly 20 years and is the director of the ACRCP. The disease has reached epidemic levels at times, including ongoing outbreaks in southern parts of the Western Australian wheatbelt, in South PHOTO: BRAD COLLIS A new GRDC project will scan hundreds of Chinese and European barley lines for resistance to the increasingly costly barley leaf rust. The goal is to incorporate several robust forms of resistance into modern Australian barley cultivars to increase the durability of resistance against the disease.
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