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.
2012
Sammendrag
Phytophthora-arter er aggressive, sopplignende skadegjørere som fremmes av fuktig og mildt klima. I Norge er flere arter oppdaget på trær i paker eller skogholt nær hager. Varslede klimaendringer med økt temperatur og nedbør kan skape gode vekstforhold slik at flere arter kan etablere seg også i skogområder.
Sammendrag
Groundwater pollution by agrochemicals, degradation of soil quality and pollution of aquatic ecosystems by agricultural drainage waters have become an issue in the last decades. Flow processes in the vadose zone are closely related to these problems. In general, water flow in soils can be classified into two major categories: uniform and non-uniform (preferential) flow (In: U.S. National Committee for Rock Mechanics, Conceptual Models of Flow and Transport in the Fractured Vadose Zone, 2001, pp.149-187). The former describes a relatively slow movement of water through the porous soil matrix and can be modelled by Richard”s equation. The latter comprises all flow types where water bypasses a portion of the soil matrix and flows through localised (i.e. preferential) paths. Unlike uniform flow, preferential flow is hardly predictable because the assumptions of Richard”s equation of a homogeneous representative elementary volume characterised by a single value of water potential, water content and hydraulic conductivity are frequently violated (Eur J Soil Sci, 2007; 58:523-546)....
Forfattere
Harald BratliSammendrag
Det er ikke registrert sammendrag
Forfattere
Merete Grung Sissel Ranneklev Øyvind Garmo Richard Frederic Wright Tor Myking Einar Heegaard Bernt-Håvard Øyen Fride Høistad Schei Hans Haavardsholm BlomSammendrag
CO2 Technology Centre Mongstad will be the world\"s largest test centre for testing and development of CO2 capture technology. The emissions to the atmosphere from CO2 Technology Centre Mongstad contain amines and may in addition contain or lead to the formation of degradation products from amine-based CO2 capture technology. An environmental baseline survey was conducted in 2011 prior to the operation. The survey performed is broad, and describes in detail the environmental situation both in terrestrial and aquatic ecosystems as well as relevant chemical compositions of a range of matrices such as soil, plants and water. The data collected in the monitoring program were used to propose a future monitoring program in the area.
Forfattere
Carl Gunnar Fossdal Nadeem Yaqoob Benedicte Riber Albrectsen Halvor SolheimSammendrag
Aspen trees are exposed to a range of attackers and employ varied strategies to reduce their impact. The diversity of responses may have importance for resistance properties at the stand level, and justifies the search for varied defensive strategies in natural populations. We used transcriptomic tools to evaluate diverse responses at the gene activity level in Populus tremula in response to wounding, and to inoculation with two pathogenic fungi (Melampsora magnusiana vs Ceratocystis sp.) that differ in life style (biotroph vs necrotroph) and host tissue requirement (live leaf vs dead wood tissues). Two aspen genotypes from the SwAsp collection with differences in growth and phenolic composition were used to study differences in resistance properties. High defence gene induction, high growth and elevated defence properties toward the biotroph appeared to support each other in this study exemplified in the more resistant SwAsp clone, whereas the more susceptible SwAsp clone was much less responsive to infections, and displayed more symptoms when infected with M. magnusiana. Interestingly, in the more resistant clone wounding gave greater systemic activity of selected candidate genes than when combined with the necrotroph, suggesting that this pathogen has some ability to suppress the induction or translocation of the systemic defence signal in this particular clone.
Forfattere
Severin WoxholttSammendrag
Skog og landskap er et nasjonalt institutt for kunnskap om arealressurser. Instituttet skal forske og framskaffe informasjon knyttet til skog, jord, utmark og landskap. Skog og landskap skal formidle kunnskap til myndighetene, næringslivet og allmennheten. Skog og landskap skal bygge opp og vedlikeholde kompetanse som nasjonalt faginstitutt, og forskningen skal være på et høyt internasjonalt nivå. Instituttet skal ha en fri og uavhengig stilling i alle faglige spørsmål.
Forfattere
Gro Steine Anna Caroline RehnbergSammendrag
Den opprinnelige sauen i Norge blir ofte omtalt som den gammelnorske sauen, en variant av den nordeuropeiske korthalesauen. Denne sauen var trolig nokså enerådende i landet fra vikingtiden og fram til 1600-1700 tallet.
Sammendrag
From the range of information published, acetylation appears well suited to provide adequate protection against biological attack for materials derived from typically non-durable wood species. Acetylated wood is now commercially available both in Europe and in the USA. But still there are a lot of unanswered questions related to fungal decay mechanisms in acetylated wood.The paper summarize existing knowledge and highlight future research opportunities related to fungal deterioration of acetic anhydride modified wood. In addition statistical analyses based on previously published data were performed to quantify what factors contribute most to the performance (calculated as test sample/control).The results showed that WPG can explain approximately 50 % of the performance, measured as test sample/control (T/C), for acetic anhydride treated wood. Other of the applied variables, like wood species or type of fungus can reduce the variance in T/C by additional 15 %.
Forfattere
Camilla BaumannSammendrag
Sannsynligvis er over 400 eplesorter blitt dyrket her i landet siden epledyrkingen for alvor skjøt fart på slutten av 1700-tallet. I dag er ca 150 av dem bevart.
Forfattere
Åsmund AsdalSammendrag
Historien om hvordan gamle plantesorter forsvant når nye sorter overtok Felleskjøpets frøutsalg og bondens åker er velkjent. Mye av PLANTEARVEN er forsvunnet, men gamle sorter av planteslag som korn, potet, grønnsaker, frukt og bær er bevart.