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Disease severity and grain yield of spring barley variety mixtures grown under organic and conventional conditions

Østergård, H.; Kristensen, K.; Hovmøller, M.S. and Jensen, J.W. (2004) Disease severity and grain yield of spring barley variety mixtures grown under organic and conventional conditions. Paper at: Workshop on Resistance of cereals to biotic stresses., IHAR Radzikóv, Poland, November 28 - December 1, 2004. [Unpublished]

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Despite quite intensive testing of varieties, predictions of future performance of varieties, when grown on specific locations, are known to be nearly impossible; this especially within organic growing systems, where no pesticides and fertilizers can help stabilize yield. Therefore, using mixtures of appropriate varieties might be a way to obtain more stable and acceptable yields. Variety mixtures have so far been studied mostly under conventional farming conditions and focus has often been to characterize disease progress of one pathogen. Here we consider simultaneously four important foliar diseases on spring barley grown in organic as well as conventional growing systems. Further, we study the changes in disease severity of variety mixtures when adapting to local growing conditions (‘farm saved seeds’ or ‘farm varieties’).

EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Subjects: Crop husbandry > Crop health, quality, protection
Crop husbandry > Crop combinations and interactions
Crop husbandry > Breeding, genetics and propagation
Environmental aspects > Biodiversity and ecosystem services
Research affiliation: Denmark > DARCOF II (2000-2005) > VI.2 (BAR_OF) Characteristics of spring barley varieties for organic farming
Denmark > AU - Aarhus University > AU, DJF - Faculty of Agricultural Sciences
Denmark > DTU - Technical University of Denmark > DTU, RISØ - Risø National Laboratory
Deposited By: Østergård, Professor Hanne
ID Code:8145
Deposited On:19 Apr 2006
Last Modified:12 Apr 2010 07:33
Document Language:English
Refereed:Not peer-reviewed

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