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.
2010
Forfattere
Trygve S. AamlidSammendrag
Foredraget oppsummerer de viktigste forsøksreusltater med bruk av dekkvekst til engsvingel, rødsvingel, engrapp, bladfaks og kvitkløver, og gir dessuten råd om etablering av frøeng i falskt såbed.
Forfattere
Ivar Pettersen Julie Nåvik Hval Arne Vasaasen Per Kristian AlnesSammendrag
Det er ikke registrert sammendrag
Forfattere
Cecilia E. MüllerSammendrag
Plastpakka engfôr brukes stadig mer i stedet for høy som grovfôr til hester. Ulike aspekter på produksjon av plastpakka engfôr, kjemisk og mikrobiell sammensetning av fôret og bruk av plastpakka engfôr til hester er studert.
Forfattere
Odd-Arild FinnesSammendrag
En sammenhengende verdikjede med lønnsomhet i alle ledd er en forutsetning for å kunne levere kjekjøtt til Tromsømarkedet.
Forfattere
Tor Lunnan Lars Olav Brandsæter Paul E. Hatcher Espen Haugland Matthias Koesling Kjell MangerudSammendrag
Det er ikke registrert sammendrag
Forfattere
Christer MagnussonSammendrag
S.radicicola is a parasite of barley and grasses like Poa annua and P.pratensis. The life cycle of a Norwegian population of S.radicicola (Poa-race) is studied in the laboratory by inoculating newly germinated P.annua (cv. Leif) with 140 juveniles from field collected galls and keeping the plants at 25˚C and 16 hrs light period. Juvenile stages are separated based on genital development. The first stage (J1) has 1 cell, while the following stages J2, J3 and J4 has 2, 3 and 4 (or more) cells in their genital primordia. J1 (L = 310-350μm) moults in the egg and J2 (L = 330-400μm) is the hatching stage. Nematodes emigrating from field collected galls were all J3:s (L = 360-430μm), and moulted outside the gall to J4 (L = 210-500μm). The first stage to appear in newly formed galls is large J4 (L=500-870 μm), which moults within 5 days to adult (L=820-1980 μm). Egg-laying starts within 13 days and eggs hatch after 22 days. Juvenile development in eggs starts at 5˚C, and 640 degree days are required for completing one generation corresponding to about 30 days at 25˚C. This means that in Norway S.radicicola may have up to 3 generations per year. The fact that J3 exit the galls and the large J4 is the first stage present in newly formed galls makes us speculate that the induction of gall formation occurs from outside by pre-infective J4, which later infects and develop inside the gall. Key Words: Root gall nematode, Subanguina radicicola, Poa annua, life cycle, Norway
Forfattere
Eldrid Lein MoltebergSammendrag
Se sammendrag med samme navn i Bioforsk Fokus 5(2)
Forfattere
Trygve S. Aamlid Arild AndersenSammendrag
Norsk frøavlerlags forskingsprosjekt "Skadedyr ved frøavl av rødkløver" (2007-10) har vist at kløvergnager (Hypera nigrirostris) og rødkløversnutebiller (Apion spp.) forekommer i norske frøenger. Som regel er insektsprøyting likevel ulønnsomt, for sprøyting virker også negativt på de pollinerende nytteinsektene.
Sammendrag
VKMs Panel on Plant Health gives the following main conclusions of the pest risk assessment: 1) The pest of concern is the oomycete Phytohthora fragariae Hickman. The PRA area is Norway. P. fragariae is present in at least five limited regions of the PRA area. These regions are located in the counties of i) Hedmark, ii) Aust-Agder and Vest-Agder, iii) Hordaland and Rogaland, iv) Vestfold, and v) Møre og Romsdal. It is probable that the pathogen is present at some places of production without having been detected yet. The pathogen is regulated as a quarantine pest in the PRA area. 2) With the current import regulations there is a medium probability of introduction of P. fragariae through import of infected Rubus plants for planting and a low probability of introduction through import of other consignments. However, there is little updated information available on the presence of the pathogen in different production systems, and there is only very limited evidence that the pathogen can spread by other means than strawberry plants. The level of uncertainty is therefore high. 3) Without the current import regulations there would be a very high probability of introduction through the import of non-certified strawberry plants. The level of uncertainty of this assessment is low. The probability of introduction through import of certified strawberry plants is considered low, but without detailed information on the presence/absence of the pathogen in such material the level of uncertainty is high. 4) With the current pest management procedures the probability of spread within the PRA area is medium for raspberry plants and machinery, other farm implements, footwear and animals. The probability of spread through other pathways ranges from low (legally traded, non-certified strawberry plants, seed potatoes, surface water, waterways and irrigation systems) to very low (remaining pathways). The level of uncertainty is low for certified strawberry plants and medium for legally traded, non-certified strawberry plants. Due to limited knowledge on the spread and survival of the pathogen, the level of uncertainty is high for all other pathways. 5) Without the current pest management procedures the probability of spread with strawberry plants within the PRA area would be very high. The probability of spread with raspberry plants would be high and the probability of spread with seed potatoes, machinery, other farm implements, footwear, animals, surface water, waterways and irrigation systems would be medium. The probability of spread through other pathways would range from low to very low. The level of uncertainty is low for strawberry plants, but due to limited knowledge on the spread and survival of the pathogen, the level of uncertainty is generally high for all other pathways. 6) All strawberry-growing areas in the whole PRA area are considered endangered areas.
Forfattere
Knut G Berdal Aksel Bernhoft Gro Ingunn Hemre Askild Lorentz Holck Ingolf Nes Kaare Magne Nielsen Heidi Amlund Thomas Bøhn Jihong Liu Clarke Tron Øystein Gifstad Bjørn Munro Jenssen Helge Klungland Casper Linnestad Richard Meadow Arne Mikalsen Anne Ingeborg Myhr Trond Møretrø Audun Helge Nerland Live Lingaas Nesse Hilde-Gunn Opsahl Sorteberg Odd Egil Stabbetorp Birger Svihus Vibeke Thrane Ole Torrissen Rose Vikse Marit AursandSammendrag
Det er ikke registrert sammendrag