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.
2007
Authors
Knut G Berdal Jihong Liu Clarke Sonja Klemsdal Helge Klungland Casper Linnestad Arne Mikalsen Anne Ingeborg Myhr Audun Helge Nerland Ingolf Nes Kaare Magne Nielsen Hilde-Gunn Opsahl Sorteberg Odd Egil Stabbetorp Vibeke ThraneAbstract
Det er ikke registrert sammendrag
Authors
Knut G Berdal Jihong Liu Clarke Sonja Klemsdal Helge Klungland Casper Linnestad Arne Mikalsen Anne Ingeborg Myhr Audun Helge Nerland Ingolf Nes Kaare Magne Nielsen Hilde-Gunn Opsahl Sorteberg Odd Egil Stabbetorp Vibeke ThraneAbstract
Det er ikke registrert sammendrag
Authors
Knut G Berdal Jihong Liu Clarke Sonja Klemsdal Helge Klungland Casper Linnestad Arne Mikalsen Anne Ingeborg Myhr Audun Helge Nerland Ingolf Nes Kaare Magne Nielsen Hilde-Gunn Opsahl Sorteberg Odd Egil Stabbetorp Vibeke ThraneAbstract
Det er ikke registrert sammendrag
Abstract
In spring 2002, extensive damage was recorded in southeast Norway on nursery-grown Norway spruce seedlings that had either wintered in nursery cold storage or had been planted out in autumn 2001. The damage was characterised by a top shoot dieback. Two visually distinct types of necroses were located either on the upper or lower part of the 2001-year-shoot. Isolations from the upper stem necroses rendered Gremmeniella abietina, while Phomopsis sp. was isolated mostly from the from the lower stem necroses. RAMS (random amplified microsatellites) profiling indicated that the G. abietina strains associated with diseased nursery seedlings belonged to LTT (large-tree type) ecotype, and inoculation tests confirmed their pathogenicity on Norway spruce seedlings. Phomopsis sp. was not pathogenic in inoculation tests, this implying it may be a secondary colonizer. We describe here the Gremmeniella - associated shoot dieback symptoms on Norway spruce seedlings and conclude that the unusual disease outburst was related to the Gremmeniella epidemic caused by the LTT type on large pines in 2001. The role of Phomopsis sp. in the tissue of diseased Norway spruce seedlings is yet unclear.
Authors
Karl ThunesAbstract
Det er ikke registrert sammendrag
Authors
Siv Fagertun Remberg Lars SekseAbstract
Flere studier har vist at et økt inntak av frukt, bær og grønnsaker kan redusere risikoen for å utvikle alvorlige sykdommer. Antioksidantene i denne matvaregruppen kan være årsaken til denne positive effekten. Frukt og bær er naturlige kilder til antioksidanter, men det er store variasjoner innenfor både arter og sorter. Innholdet av antioksidanter kan påvirkes av en rekke ulike betingelser. Forhold under lagringen kan være med på å påvirke innholdet av antioksidanter i frukt og bær.
Authors
Bo Stenberg Trond Maukon Henriksen Sander Bruun Audun Korsæth Lars Stoumann Jensen Tor Arvid Breland Erik Nordkvist Fridrik Palmason Tapio Salo Jon Gudmundsson Martti EsalaAbstract
Det er ikke registrert sammendrag
Authors
Arild AndersenAbstract
Det er ikke registrert sammendrag
Authors
Charles A. Francis Andrea Lawseth Alexandra English Paula Hesje A. McCann J. Wagner Wendy Marie Waalen Geir Lieblein Tor Arvid BrelandAbstract
Det er ikke registrert sammendrag
Authors
Susanne Eich-Greatorex Anne Falk Øgaard Trine A SognAbstract
In parts of the world, Se availability in the soil is so low that Se contents in the crops produced there are well below recommended values. Since the difference between Se essentiality and toxicity is very small, the addition of Se via fertiliser is controversial. Therefore, it is important to utilise the Se added in the best possible way. The objective of the present study was to investigate the influence of soil organic matter on the one hand, and addition of organic material (slurry) on the other hand on plant availability of selenium (Se) in soil. Pot experiments with the Se addition in the form of selenate were conducted with a peat, a loam and a peat/loam mixture at a range of pH values between 5 and 6.8. Se uptake from added Se fertiliser was higher in the soil types with high organic matter content than in the loam at pH 6 and below. The opposite occurred at a soil pH above 6.4, where Se uptake was higher in the loam than in the peat. In a pot experiment using only peat and loam at two pH levels, cattle slurry added together with selenate was found to increase the Se concentration in grain at the higher pH. At the lower pH there was no significant effect of slurry on Se concentration in grain. Application of slurry also increased the residual effect of Se that had been applied to the loam in the preceding growing season. In the peat, no residual effect of Se was found either with or without the addition of slurry.