Publications
NIBIOs employees contribute to several hundred scientific articles and research reports every year. You can browse or search in our collection which contains references and links to these publications as well as other research and dissemination activities. The collection is continously updated with new and historical material.
2018
Abstract
No abstract has been registered
Authors
Mekjell MelandAbstract
No abstract has been registered
Abstract
No abstract has been registered
Abstract
No abstract has been registered
Abstract
No abstract has been registered
Abstract
No abstract has been registered
Authors
Jørn Harald Hurum Victoria Sjøholt Engelschiøn Inghild Økland Janne Bratvold Christina Ekeheien Aubrey Jane Roberts Lene Liebe Delsett Bitten Bolvig Hansen Atle Mørk Hans Arne Nakrem Patrick Scott Druckenmiller Øyvind HammerAbstract
No abstract has been registered
Abstract
No abstract has been registered
Authors
Stef Bokhorst Matty P. Berg Guro Kristine Edvinsen Jacintha Ellers Amber Heitman Laura Jaakola Hanne Mæhre Gareth K. Phoenix Hans Tømmervik Jarle W. BjerkeAbstract
The following article, Bokhorst, S., Berg, M.P., Edvinsen, G.K., Ellers, J., Heitman, A., Jaakola, L., ... Bjerke, J.W. (2018). Impact of Multiple Ecological Stressors on a Sub-Arctic Ecosystem: No Interaction Between Extreme Winter Warming Events, Nitrogen Addition and Grazing. <i>Frontiers in Plant Science, 9</i>, can be accessed at <a href=https://doi.org/10.3389/fpls.2018.01787> https://doi.org/10.3389/fpls.2018.01787</a>.
Abstract
Phytophthora cryptogea, P. gonapodyides, P. lacustris, P. megasperma, P. plurivora, P. taxon paludosa and an unknown Phytophthora species were isolated from waterways and soil samples in Christmas tree fields in southern Sweden. In addition, P. megasperma was isolated from a diseased Norway spruce (Picea abies) plant from one of the fields in Svalöv. Inoculation tests were sequentially carried out with one isolate from each of the three species P. cryptogea, P. megasperma, and P. plurivora, all known pathogens on conifers. The same three isolates were used to study a few morphological features to confirm the identification, and temperature-growth relationships were carried out to see how well the organisms fit into Swedish climatic conditions. Seedlings of Norway spruce and Nordmann fir (Abies nordmanniana) were inoculated in the roots and the stems. None of the isolates caused extensive root rot under the experimental conditions, but all three species could be re-isolated from both Norway spruce and Nordmann fir. Phytophthora root rot is currently of minor concern for Christmas tree growers in Sweden. However, the Phytophthora isolations from soil and water indicate the presence of this damaging agent, which may lead to future problems.