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| Østergård, H.; Kristensen, K.; Hovmøller, M.S.; Jensen, J.W.. |
| 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... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection Crop combinations and interactions Breeding; Genetics and propagation Biodiversity and ecosystem services. |
| Ano: 2004 |
URL: http://orgprints.org/8145/1/8145.pdf |
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| Østergård, H.; Kristensen, K.; Jensen, J.W.. |
| Fifty spring barley varieties grown under organic as well as conventional growing conditions in experimental fields in four combinations of year and site were studied. The yield varied much within and between environments (years and sites) and systems. Further, the variation between varieties was substantially and it differed between different environments and systems. Associations between observed grain yield of these varieties and disease and growth characteristics assessed in the official conventional variety testing were compared between the organic and the conventional system. Using factorial regression analysis, the best model for predicting the observed grain yield each year from these characteristics the previous year was found. In this model, the... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection Regulation Breeding; Genetics and propagation. |
| Ano: 2005 |
URL: http://orgprints.org/8149/1/8149.pdf |
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