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.
2008
Forfattere
Leif Sundheim May Bente Brurberg Trond Hofsvang Christer Magnusson Trond Rafoss Brita Toppe Anne Marte Tronsmo Bjørn ØklandSammendrag
Det er ikke registrert sammendrag
Forfattere
Leif Sundheim May Bente Brurberg Trond Hofsvang Christer Magnusson Trond Rafoss Brita Toppe Anne Marte Tronsmo Bjørn ØklandSammendrag
Det er ikke registrert sammendrag
Forfattere
Leif Sundheim May Bente Brurberg Trond Hofsvang Christer Magnusson Trond Rafoss Brita Toppe Anne Marte Tronsmo Bjørn ØklandSammendrag
Wild oats (A. fatua) is present in 155 out of 431 Norwegian municipalities. It is widely distributed in all municipalities in the main agricultural areas in south-east and central-east Norway, and in the municipalities close to the Trondheim fjord. Otherwise wild oats is present in only a few scattered municipalities not geographically connected to these main areas. Endangered area, not yet infested by A. fatua, is estimated to 228858 ha. This area is spread over the cereal growing part of Norway. The counties of North- and South -Trøndelag have a higher portion of endangered area not yet infested than south and central part of East Norway. The probability of entry of A. fatua from outside the PRA area (Norway) is very low. The probability of spread within Norway is high. In areas with low infestation, like in Trøndelag, the probability of spread is lower than in heavily infested areas. However, in areas with high level of infestation there are few new farms left to be infested. The official wild oats register is a valuable tool in regulations aiming to limit spread. The register also provides a tool to follow up infested farms. The register would be even more useful if inspection for infestation on new farms had been more systematic. Wild oats is no longer devastating even in cereal monocropping, due to cost efficient herbicides. However, in Norway an increasing area is infested with wild oats. The infestation may vary from only a few plants to total coverage of the field. In cereal monocropping chemical treatment with and without hand roguing is the only feasible control methods. Hand roguing alone is expensive and ineffective even on modest infestation. The structural changes in cereal farming result in more farms being managed by entrepreneurs. Field managed by entrepreneurs promotes use of herbicide even on small infestations since this is a cost effective measure to control the weed. Less official control of cereal fields can also be expected. The economical consequences are thus expected to be high. The economical consequences can be even higher in organic farming if the most profitable rotation has to be changed to a less profitable one because of wild oats infestation.
Forfattere
Leif Sundheim May Bente Brurberg Trond Hofsvang Christer Magnusson Trond Rafoss Brita Toppe Anne Marte Tronsmo Bjørn ØklandSammendrag
Det er ikke registrert sammendrag
Sammendrag
I vekstsesongen 2008 vart det observert store skadar på koloradoedelgran (Abies concolor) på både Aust- og Vestlandet. Frå kreftsår på skadde tre vart soppen Cylindrocarpon cylindrioides isolert. Det er det ukjønna stadiet av kreftsoppen Nectria fuckeliana.
2007
Sammendrag
Det første og viktigste trinn i bekjempelse av planteskadegjørere er en korrekt identifisering av organismen som forårsaker skade. Testmetoder som er basert på deteksjon av arvestoff (DNA) til en organisme har vist seg å være svært nyttige i diagnostikken. Vi har etablert en DNA-basert test for identifisering av potetcystenematoder.
Sammendrag
Det er ikke registrert sammendrag
Forfattere
Erik LysøeSammendrag
Bilateral research activities at Bioforsk
Forfattere
Erik LysøeSammendrag
Identification and characterization of genes involved in mycotoxin synthesis and ongoing research to study the regulation of mycotoxin synthesis of Fusarium
Sammendrag
Identification of up-regulated genes during zearalenone biosynthesis in strains of Fusarium.