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.
1985
Authors
Tore SkrøppaAbstract
No abstract has been registered
Authors
John Eilif Hermansen Johnny Hofsten Hans Venvik Tore CorneliussenAbstract
No abstract has been registered
1984
Authors
Tore SkrøppaAbstract
No abstract has been registered
Authors
Erik N. MønnessAbstract
No abstract has been registered
Authors
Tore SkrøppaAbstract
No abstract has been registered
Authors
Ole HofstadAbstract
No abstract has been registered
Authors
G.K. Rutherford Arne Olav StuanesAbstract
No abstract has been registered
1983
Authors
Gunnar Ogner Bjørn LangerudAbstract
No abstract has been registered
Authors
Tore SkrøppaAbstract
No abstract has been registered
Authors
Richard Horntvedt Erik Christiansen Halvor Solheim Shasheng WangAbstract
An infection experimcnt was made to test the pathogenicity of two Ceratocystis species on Norway spruce trees. Water stress in inoculated and control trees was measured by means of xylem water potential, stomatal aperture and transpiration stream velocity. Most trees inoculated with C. polonica, alone or in combination with C. penicillata, became water-stressed. Ten weeks after inoculation almost all sapwood of water-stressed trees was blue-stained at the level of inoculation. Trees inoculated with C. penicillata alone did not become water-stressed, and their sapwood was not blue-stained. The results indicate that C. polonica is a highly qualified accomplice to Ips typographus in its killing of spruce trees.