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| Kristensen, Kristian; Ericson, Lars. |
| The growing interest in organic farming has increased the interest in examining if different growing characteristics among varieties would explain differences in yield differently in conventional compared to organic systems. This work will focus on that question. The analyses are performed using data from trials with spring barley in Denmark and Sweden. Growing characteristics on diseases, volume weight, grain weight, and lodging will be included in the work. The growing characteristics are included as covariates to see how much of the variation caused by varieties and interaction with varieties that can be explained by the growing characteristic. The model is setup in order to estimate simultaneously the effect of the growing characteristics and the... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Farming Systems; Crop husbandry. |
| Ano: 2007 |
URL: http://orgprints.org/20888/3/20888.pdf |
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| Kristensen, Kristian; Ericson, Lars. |
| The increasing interest in organic farming has increased the interest in examining the importance of the different growing characteristics, such as attack of diseases, grain weight, lodging and heading date. One of the important questions raised was whether the relationship between the growing characteristics and yield would be the same for conventionally and organically grown crop or would some growing characteristics be more important for organically than for conventionally grown crops. This work will focus on that question. The analyses are performed using two datasets with comparable trials in both conventional and organic grown systems for barley (Hordeum vulgare). The two datasets were from Sweden and Denmark. From Sweden 22 conventional and 22... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Farming Systems; Crop husbandry. |
| Ano: 2007 |
URL: http://orgprints.org/20892/4/20892.pdf |
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| Kristensen, Kristian; Ericson, Lars. |
| The interest in organic grown cereals has increased the need for variety tests under organic growing systems and/or the knowledge on whether growth characteristics describe yield differently under conventional and organic conditions. This paper is a contribution to that question by examining the relationships between some important growth characteristics in barley trials in both systems in Northern Sweden and in Denmark. Mixed model analyses were used for regressions of growth characteristics (or transformations of those) on yield (and log-transformed yield), allowing the slope to depend on the growing system. The analyses showed that diseases seemed to have a less negative effect on yield in the organic growing system than in the conventional growing... |
| Tipo: Journal paper |
Palavras-chave: Farming Systems; Crop husbandry. |
| Ano: 2008 |
URL: http://orgprints.org/20878/4/20878.pdf |
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