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Net blotch carryover risk from stubble in barley-on-barley rotations AIMS METHOD RESULTS CONCLUSIONS

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To quantify how rotation length and use of varieties with disease resistance affect the development of net blotch fruiting bodies on barley stubble in the following seasons... In 2009 and 2010, 2nd year (18-22 month old) stubbles of the variety Baudin from the previous year's stubble trials were assessed for disease carryover potential... By comparison, primary NB infection of barley grown on 2nd year stubble is caused mainly by ascospores produced in sexual fruiting bodies...