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.
2026
Sammendrag
Lønnsomhet og risiko i hvetedyrking ble sammenlignet med annen korndyrking, med vekt på situasjonen i Innlandet. Analysene bygger på kornproduksjonsbruk i Driftsgranskingene 2020–2024 (gjennomsnittlig 106 bruk per år), koblet mot produksjonstilskuddsdata og kornleveringsstatistikk. Lønnsomhet ble målt som dekningsbidrag per daa, og risiko belyst gjennom variasjon mellom år, mellom bruk og mellom AK-soner, samt betydningen av kvalitetsutfall (mathvete vs. fôrhvete) og investering i tørke- og lagerkapasitet. Analysen hovedfunn er: (1) hvete ga i gjennomsnitt ikke høyere dekningsbidrag enn bygg, verken i Innlandet eller på landsbasis, men resultatvariasjonen var klart større i hvete. Særlig var risiko knyttet til å ikke oppnå matkvalitet sentral. Om matkvalitet ble oppnådd ga hvete noe høyere dekningsbidrag enn bygg, men om hveten ikke ble avregnet som mat ga det oftest lavere dekningsbidrag; (2) For bruk med egen tørke var dekningsbidraget per dekar for hvete på om lag 18–26 prosent høyere enn på bruk uten egen tørke, men brukene med tørke hadde vesentlig høyere nivå av anleggsmidler. På bakgrunn av analysen valgte en fokusgruppe ut tiltak for økt hvetedyrking. Disse omfattet arealtilskudd for hvete, pris for fôrhvete, ordninger for tørking og lagring, såkorn og sortsutvikling, og kunnskapsgrunnlag og beslutningsstøtte. Kostnadseffektivitet ble beregnet for to av tiltakene, arealtilskudd for hvete og pris for fôrhvete. Hvilket av dem som er mest effektivitet avhenger av hva som ønskes oppnådd.
Forfattere
Nhat Strøm-AndersenSammendrag
Det er ikke registrert sammendrag
Forfattere
Nhat Strøm-AndersenSammendrag
Det er ikke registrert sammendrag
Sammendrag
Broadleaved tree species from Norwegian forests are a valuable raw material if this resource can be utilized effectively. Broadleaved tree species make for approximately one fourth of the total standing volume in Norway today. This paper provides detailed data on standing volume and annual volume increment of ash (Fraxinus excelsior), oak Quercus robur og Q. petrea), silver birch (Betula pendula), downy birch (Betula pubescens), aspen (Populus tremula), grey alder (Alnus incana), and black alder (Alnus glutinosa) in Norway, and give their distribution across the regions of Eastern Norway, Southern Norway, Western Norway, Trøndelag, and Northern Norway. Information on stand age, site quality, and diameter distribution will be provided.
Sammendrag
Birch has regained interest in Norwegian forestry within the last few years, partly to increase the share of broadleaves and tree-species diversity under climate change. However, timber yield and quality assortments from Norwegian birch stands remain largely unknown. We established temporary sample plots in planted and naturally regenerated birch stands on high-quality sites in Eastern Norway and carried out tree measurements to quantify stand-level production. In addition, the first 6 m of each standing tree were subjected to a detailed timber‑quality assessment and subsequently graded accordingly. Volume production in the investigated stands was frequently higher than values reported in birch yield tables from the 1970s and did not differ between planted and naturally regenerated stands. Volume production in the studied birch stands was similar to or higher than for Norway spruce on comparable high-quality sites up to a stand age of about 40 years. Despite the lack of quality-oriented management in most stands, nearly all produced sawlogs and many contained higher-quality assortments. Stand-level sawlog proportion increased with mean tree diameter. While planting and thinning showed no clear relationship with stand-level sawlog proportion, artificial pruning increased the share of higher-quality sawlogs. Overall, productive birch stands in Norway can deliver high yields and meaningful volumes of quality sawlogs.
Sammendrag
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Leder – SCAPE 2024 Pollination Ecology
Maria Rocío Pérez‐ Barrales, Anders Nielsen, Stefan Andersson
Sammendrag
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Forfattere
Paal Krokene Beatrix Alsanius Jorunn Børve Daniel Flø Christer Magnusson Mogens Nicolaisen Line Nybakken Johan A. Stenberg Selamawit Tekle Iben M. Thomsen Sandra A. I. Wright May SæthreSammendrag
EPPO-listed plant pests were assessed and ranked according to the overall risk they pose to Norwegian plant health. Based on probability of entry, probability of establishment (including spread), and potential impact on plant health, pests were classified into five risk classes: very high, high, moderate, low, and very low risk. In this second progress report VKM has assessed 69 pests: 53 insects and mites, eight bacteria, four viruses, three fungi, and one chromista. No pests were assessed to pose very high or high risk. Six pests were assessed to pose moderate risk: Choristoneura fumiferana, Dendrolimus superans, Grapholita packardi, Potexvirus pepini, Tobamovirus fructirugosum, and Xylella fastidiosa. The remaining 63 pests were assessed to pose low risk (20 pests) or very low risk (43 pests) to Norwegian plant health.
Sammendrag
Det er ikke registrert sammendrag
Forfattere
Bienson Ceasar V. Narvarte Shienna Mae C. Gonzaga Lourie Ann R. Hinaloc Jonh Rey L. Gacura Emmanuel M. Mendoza Ronel T. Aguilar Bea A. Crisostomo Michael RoledaSammendrag
Betaphycus gelatinus is a red seaweed with emerging commercial interest due to its potential as a source of high-quality carrageenan and bioactive compounds. Despite its promise, there remains a lack of established cultivation techniques for this species. Here, we provided a comprehensive assessment of the strain-specific performance of B. gelatinus grown in land-based cultivation systems, focusing on growth and its seasonality, morphological transformation, and a snapshot biochemical analysis at the end of a one-year cultivation period. Three B. gelatinus strains, namely KU9-PGD, KG1-PGD, and K-PGD, were collected from field and maintained in a land-based culture system. Significant differences in growth rates were observed among strains, with generally higher values recorded during the inter- and southwest monsoon (0.78 – 3.09, 1.74 – 4.41, and 1.79 – 5.45% d−1, respectively) compared to northeast monsoon (0.49 – 1.44, 1.25 – 2.12, and 1.20 – 3.97% d−1, respectively). Among the three strains, K-PGD exhibited the most robust growth, underscoring the importance of strain selection in optimizing biomass yield. Growth rates also varied between cultivation systems, with glass aquaria (1.30 – 2.87% d−1) promoting higher growth rates than concrete tanks (1.15 – 1.75% d−1). The domestication of B. gelatinus resulted in morphological transformation where changes in branching, pigmentation, and thallus surface features emerged compared to their respective original wild forms. During the southwest monsoon sampling, biochemical profiles (pigments, carbohydrates, proteins) of the three strains remained relatively uniform under controlled conditions. These results affirm the potential of B. gelatinus as a viable crop for future commercial mariculture and provide valuable baseline information for developing cultivation protocols and selecting high-performing strains for large-scale production.