Wild Oat Tapped to Combat Crown Rust
February 5, 2010| |
Wild species of oat Avena barbata has been tapped as a source for resistance to combat crown rust. Crown rust affects oat yields by up to 40 percent. It is caused by Puccinia coronata, a fungus that can overcome a number of resistance genes for about five years, said Martlin L. Carson, the research leader at the USDA-ARS Cereal Disease Laboratory in Minnesota.
Avena barbata is listed as a noxious weed in Missouri and invasive in California, South Asia, much of Europe and around the Mediterranean region. The research team found that the wild oat is resistant to a variety of crown rust strains. Preliminary breeding experiments with the cultivated oat Avena sativa, shows crown rot resistance in the seedlings. The group is now developing stable and sturdy lines with high yield, resistance to rust and drought tolerant.
See the story at http://www.ars.usda.gov/is/pr/2010/100204.htm
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