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Yield and baking quality of winter wheat cultivars in different farming systems of the DOK long-term trials

Hildermann, I. and Thommen, A. and Dubois, D. and Boller, T. and Wiemken, A. and Mäder, P.. (2009) Yield and baking quality of winter wheat cultivars in different farming systems of the DOK long-term trials. Journal of the science of food and agriculture, Vol. 89, H. 14. pp. 2477-2491.

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Official URL: http://edoc.unibas.ch/dok/A5252886

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Abstract

BACKGROUND: A challenge in wheat (Triticum aestivum L.) breeding for organic farming is to provide high-yielding cultivars with appropriate baking qualities under the limiting conditions of organic fertiliser input and without the use of pesticides. Cultivars are usually tested on organic and conventional farms. However, field properties may differ owing to spatial variations of soils and microclimate heterogeneity. In this study, old, organically bred and conventionally bred cultivars were tested in organic and conventional farming systems of the DOK long-term system comparison trial. RESULTS: Effects of cultivars and systems on yield and quality parameters were statistically significant. Genotype x system interactions were generally not observed. Grain yield across all cultivars increased from 4.2 Mg ha(-1) under organic conditions up to 6.8 Mg ha(-1) under conventional conditions, with protein contents of 90 and 117 g kg(-1) respectively. Conventionally bred cultivars yielded significantly more under conventional conditions than organically bred cultivars, whereas neither organically nor conventionally bred cultivars performed better under organic conditions. CONCLUSION: Breeding for yield was successful, but only under high-input conditions, where these successes were accompanied by rising inputs of external resources. The results of this study suggest that cultivar testing in long-term system comparisons can complement standard on-farm testing.
Faculties and Departments:05 Faculty of Science > Departement Umweltwissenschaften > Ehemalige Einheiten Umweltwissenschaften > Pflanzenphysiologie Zuckermetabolismus (Wiemken)
UniBasel Contributors:Boller, Thomas and Wiemken, Andres M.
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:Wiley Interscience
ISSN:1097-0010
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:22 Mar 2012 14:27
Deposited On:22 Mar 2012 13:57

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