Breeding for organic agriculture: the example of winter wheat in Austria |
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Authors: | Franziska Löschenberger Andreas Fleck Heinrich Grausgruber Herbert Hetzendorfer Gerhard Hof Julia Lafferty Marion Marn Anton Neumayer Georg Pfaffinger Johann Birschitzky |
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Institution: | 1. Saatzucht Donau GmbH & CoKG, Zuchtstation Probstdorf, Saatzuchtstr. 11, 2301, Probstdorf, Austria 2. Department of Applied Plant Sciences and Plant Biotechnology, BOKU-University of Natural Resources and Applied Life Sciences, Gregor-Mendel-Str. 33, 1180, Vienna, Austria 3. Biologischer Landbau, D?rfles 3, 2253, Weikendorf, Austria 4. Saatzucht Donau GmbH & CoKG, Zuchtstation Reichersberg, 4981, Reichersberg/Inn 86, Austria
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Abstract: | Breeding for organic agriculture (BFOA) is a strategy for a commercial breeding company based on the exploitation of the frequently
observed high correlation for many traits between conventional, low input (LI) and organic agriculture (ORG). Indirect selection
under LI can be useful to roughly divide the germplasm into the genotypes better adapted to high input and those better adapted
to LI or ORG conditions. BFOA is an evolving process, in which two methods are currently applied: early generations are either
selected following the pedigree system under LI, or grown as bulk populations on ORG fields. In the latter case the system
switches to LI after individual ear selection under ORG conditions. In both methods, the first replicated yield trial is grown
parallel under ORG and LI. Subsequently, the genotypes are grouped into conventional or ORG advanced trial series. The BFOA
strategy allows that the larger genetic variability of both the organic and conventional gene pool can be exploited in the
selection for ORG. Hitherto, seven winter wheat varieties were released in Austria after exclusive organic VCU testing. |
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Keywords: | Breeding strategy DUS Indirect selection Low input Triticum aestivum VCU |
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