Hopp til hovedinnholdet

Publikasjoner

NIBIOs ansatte publiserer flere hundre vitenskapelige artikler og forskningsrapporter hvert år. Her finner du referanser og lenker til publikasjoner og andre forsknings- og formidlingsaktiviteter. Samlingen oppdateres løpende med både nytt og historisk materiale. For mer informasjon om NIBIOs publikasjoner, besøk NIBIOs bibliotek.

1986

1985

1984

1983

Til dokument

Sammendrag

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.

1982

1981

Sammendrag

Thanasimus formicarius (L.) responds to racemic ipsdienol and ipsenol and less to (S)-cis-verbenol. All three are pheromone components in several bark beetles of the genus Ips. Synergistic effects appeared when the components were combined. Methylbutenol alone, the specific pheromone component of Ips typographus, elicited no response, but synergestic effects appeared when methylbutenol was combined with cis-verbenol and ipsdienol. The sympatric species Thanasimus femoralis (Zett.) responds to (S)-cis-verbenol, while ipsdienol and ipsenol synergize the response.

1978