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Yield and baking quality of winter wheat cultivars in different farming systems of the DOK long-term trials
JournalArticle (Originalarbeit in einer wissenschaftlichen Zeitschrift)
ID 102957
Author(s) Hildermann, Isabell; Thommen, Andreas; Dubois, David; Boller, Thomas; Wiemken, Andres; Maeder, Paul
Author(s) at UniBasel Boller, Thomas
Wiemken, Andres M.
Year 2009
Title Yield and baking quality of winter wheat cultivars in different farming systems of the DOK long-term trials
Journal Journal of the science of food and agriculture
Volume 89
Number 14
Pages / Article-Number 2477-2491
Keywords organic farming, plant breeding, winter wheat, yield, baking quality

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.

(C) 2009 Society of Chemical Industry

Publisher Wiley Interscience
ISSN/ISBN 1097-0010
Full Text on edoc No
Digital Object Identifier DOI 10.1002/jsfa.3750
ISI-Number WOS:000271108100020
Document type (ISI) Article

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