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Response of old, new and organically bred winter wheat cultivars in different farming systems:concept and experimental layout in the DOK field trial

Hildermann, Isabell; Thommen, Andreas; Dubois, David; Wiemken, Andres; Boller, Thomas and Maeder, Paul (2008) Response of old, new and organically bred winter wheat cultivars in different farming systems:concept and experimental layout in the DOK field trial. Poster at: Cultivating the Future Based on Science: 2nd Conference of the International Society of Organic Agriculture Research ISOFAR, Modena, Italy, June 18-20, 2008.

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Summary

Organic farmers often use winter wheat (Triticum aestivum L.) cultivars that have been bred under conventional high-input conditions. We test the hypothesis, whether old and organically bred cultivars are better adapted to low-input conditions through a better functioning of the symbiosis with arbuscular mycorrhizal fungi (AMF). Our aim is to assess the nutrient acquisition potential of old, new and organically bred winter wheat cultivars and to identify the role of AMF for nutrient uptake and growth. In October 2006, an experiment with 10 wheat cultivars was superimposed to all four field replicates of the DOK long-term experiment, comprising four different treatments with increasing nutrient input: unfertilized, biodynamic low and moderate intensity and conventional mineral system. Growth and harvest parameters such as plant density and length, growth habit, plant health, yield and grain quality will be assessed. Shoot and root samples were taken at tillering and flowering to analyse nitrogen and phosphorus content and AMF root colonization. In this paper, the current state of literature findings in the field of organic breeding is summarized and the experimental setup for variety testing in an existing long-term trial is outlined.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Poster
Keywords:Organic farming, organic breeding, winter wheat cultivars, arbuscular mycorrhizal fungi, nutrient acquisition potential
Subjects: Crop husbandry
Research affiliation: International Conferences > 2008: IFOAM OWC: Research Track / ISOFAR > 2.7 Comparison of cropping systems
Deposited By: Hildermann, Mrs Isabell
ID Code:12307
Deposited On:30 Sep 2008
Last Modified:12 Apr 2010 07:36
Document Language:English
Status:Published
Refereed:Peer-reviewed and accepted
Additional Publishing Information:This paper is published in the conference proceedings:
Neuhoff, Daniel; Halberg, Niels; Alfldi, Thomas; Lockeretz, William; Thommen, Andreas; Rasmussen, Ilse A.; Hermansen, John; Vaarst, Mette; Lck, Lorna; Carporali, Fabio; Jensen, Henning Hgh; Migliorini, Paola and Willer, Helga, Eds. (2008) .Cultivating the Future Based on Science. Proceedings of the Second Scientific Conference of the International Society of Organic Agriculture Research (ISOFAR), held at the 16th IFOAM Organic World Congress in Cooperation with the International Federation of Organic Agriculture Movements (IFOAM) and the Consorzio ModenaBio, 18 . 20 June 2008 in Modena, Italy.. International Society of Organic Agriculture Research (ISOFAR), c/o IOL, DE-Bonn, Research Institute of Organic Agriculture FiBL, CH-Frick. http://orgprints.org/13672 and http://orgprints.org/13674

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