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.
2009
Sammendrag
Det er ikke registrert sammendrag
Redaktører
Berit KristiansenSammendrag
Driftsgranskingane skal vise årlege resultat, og meir langsiktige utviklingslinjer, for økonomien i jordbruket. Undersøkinga er avgrensa til gardsbruk der inntekta frå jordbruket utgjer ein viktig del av den samla inntekta til brukarfamilien. Driftsgranskingane byggjer på skatterekneskapar som er omarbeidde til driftsrekneskapar. Rekneskapane kjem frå gardsbruk som er spreidde rundt i heile landet. For rekneskapsåret 2009 deltok 848 bruk i driftsgranskingane i jordbruket. Av desse var 142 også med i dei spesielle driftsgranskingane i skogbruket. Dessutan leverte 38 samdrifter innan kumjølkproduksjon data til undersøkinga. Driftsgranskingane omfattar gardsbruk med eit standard dekningsbidrag som minst svarer til 8 ESU (europeiske storleikseiningar). For 2009 gjekk den grensa ved om lag 83 800 kroner. Økologisk jordbruk, samdrifter innan kumjølkproduksjon og tilleggsnæringar til tradisjonelt landbruk er spesialfelt innafor driftsgranskingane. Desse emna blir behandla i eigne avsnitt i rapporten.
Forfattere
Tore Vik Torstein LislandSammendrag
Det er ikke registrert sammendrag
Forfattere
Mona RingnesSammendrag
Jeg var på klimakongress i København for en stund siden. Samlinga var forløper til COP15 som skal avholdes i desember. Der skal verdens politiske ledere enes om en avtale som ikke bare skal overta for Kyotoavtalen, men også være mange ganger mer ambisiøs.
Sammendrag
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Sammendrag
There is a need to establish new objective and sensitive methods for early detection and quantification of decay fungi in wood materials. Molecular methods have proven to be a useful tool within wood protection issues, however, this field is still poorly explored and so far relatively few have used these methods within the field of wood deterioration. Among the techniques used in the indirect quantification of fungi in decayed wood and building material are chitin and ergosterol assays. DNA-based methods are rarely used for identification in connection with quantification. Access to knowledge about fungal colonisation paterns in different wood substrates would allow further improvement of new products. The aim of this study was to investigate the colonisation pattern of decay fungi in wood samples after six years in soil exposure, in an EN252 test.....
Sammendrag
One of the main challenges for modified wood and modified wood based WPCs (Wood Plastic Composites) is to predict accurate service life time in UC3 (Use class 3, above ground) and UC4 (in soil or fresh water contact). So far, data from in-service conditions are rare, while several studies have evaluated the durability in lab or field test exposure. However, there is still a lack of studies comparing replicate modified wood products in both field and lab exposure. This study evaluates the efficacy of modified wood and modified wood based WPCs in AWPA E10, three different types of soil in lab (ENV 807), three test fields in-ground (EN 252) and two test sites close to ground (horizontal double layer test)......
Sammendrag
Regulation of flowering time in Arabidopsis thaliana is controlled by a network of pathways integrating environmental and internal signals. Two of these pathways, the vernalization and photoperiodic pathways, mediate responses to prolonged cold period and photoperiod, respectively. A number of A. thaliana populations from high-latitude and high-altitude locations in Norway were collected and phenotyped for flowering time in response to 5 photoperiods and 5 vernalization treatments. Vernalization and photoperiodic sensitivity were not correlated with latitude but rather with climatic factors such as winter temperature and precipitation that do not vary with latitude, especially in coastal environments. Coastal populations, both from subarctic and intermediate latitudes, were rather insensitive towards the length of the vernalization treatment but very sensitive towards differences in photoperiods. Stronger photoperiod sensitivity in coastal populations might be a necessary adaptation for sensing the onset of spring in regions with relatively mild and unpredictable winter climates as opposed to continental climates with more stable winters. FLC sequence variation was only partly associated with vernalization response, whereas variation in transcript levels of CRY2, TOC1 and GI was correlated with photoperiodic responses. This suggests that local adaptation of populations may be partly mediated by photoreceptors and circadian clock pathways.
Forfattere
Anna Lewandowska-Sabat Siri Fjellheim Per Winge Atle M. Bones Torfinn Sparstad Carl Gunnar Fossdal Jorunn Elisabeth Olsen Odd Arne RognliSammendrag
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Sammendrag
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