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Breeding for bunt resistance in organic wheat and spelt


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Borgen, Anders (2010) Breeding for bunt resistance in organic wheat and spelt. In: Breeding for resilience: A strategy for organic and low-input farming systems? EUCARPIA 2nd Conference of the "Organic and Low-Input Agriculture" Section, p. 34.

PDF - Submitted Version - English

Online at: http://www.agrologica.dk/publikationer/Eucarpia.bunt2010.pdf


Common bunt (Tilletia caries) is one of the most devastating plant diseases, and a particular problem for organic seed production. Organic farming aims at controlling pests and diseases with the use of biodiversity and resistance. However most organic wheat fields today are sown with monocultures of pure line varieties, and resistance to common bunt is rarely used, even this disease
causes severe problems for seed producers and for farm saved seed, as infected seed lots are discarded because of contamination with bunt spores. To improve the system, organic wheat needs resistance to common bunt that is effective enough to prevent development of the disease over time.
For this reason several initiatives are ongoing to improve bunt resistance in organic wheat production. This include screening of spelt (Triticum spelta), macha (T.macha) and heritage varieties of bread wheat (T.aestivum) for susceptibility to bunt. Pure lines of resistant plants have
been selected and will be evaluated for quality and agronomic performance. The material will be used both for development of new varieties, and for development of composite cross populations of wheat with resistance to common bunt. In a separate project (BIOBREED) DNA markers will be developed to assist selection for bunt resistance and quality characters including baking quality,
nutrients including antioxidants.

EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Subjects: Crop husbandry > Production systems > Cereals, pulses and oilseeds
Crop husbandry > Breeding, genetics and propagation
Crop husbandry > Crop health, quality, protection
Research affiliation: Denmark > Agrologica
Related Links:http://www.agrologica.dk/index.htm, http://www.eucarpia.org/03publications/OrgandLow2010Proc.pdf
Deposited By: Borgen, Ph.D. Anders
ID Code:18943
Deposited On:14 Jan 2013 14:56
Last Modified:14 Jan 2013 14:56
Document Language:English
Refereed:Not peer-reviewed

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