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
Forfattere
Melissa MagerøySammendrag
Showet får barna oppleve hvor fantastiske planter egentlig er! Vi utforsker skjulte fargene som finnes inne i plantene rundt oss, og lager magiske “rødkål regnbuer” som skifter farge rett foran øynene deres. Barna får se hvordan planter kan være fulle av overraskelser, hemmeligheter og fantastiske farger – akkurat som små natur-tryllekunstnere.
Sammendrag
Det er ikke registrert sammendrag
Sammendrag
Økt karbonfangst i skog kan gi konflikt mellom klima og natur. En ny rapport viser hvilke tiltak som fungerer best.
Sammendrag
Rosenort er en anerkjent medisinplante, verdsatt for sine svært aktive sekundære metabolitter i røtter og jordstengel (rhizom). Noen av de viktigste metabolittene antas å være salidrosid, cinnamylalkohol, glykosider (rosin, rosavin, rosarin), flavonoider (rhodionin, rhodiosin, rhodiolin) og terpener. I Skandinavia har rosenrot vært brukt som tradisjonell medisin plante i lang tid, og vikingene brukte den for å forbedre sin fysiske ytelse, styrke og utholdenhet. Rosenrot forekommer naturlig over det meste av landet og har i tillegg gode muligheter for å kunne dyrkes. Den kan formeres ved både frøformering og vegetativ formering. Før spiring krever frøene en kuldeperiode. Rosenrot kan dyrkes på alle jordtyper, men det ser ut til at myrjord gir best tilvekst. Gjødsling med 50 til 100 kg N /Ha øker tilveksten i de underjordiske plantedelene med 30-40%. Innhold av Rosaviner var i norske undersøkelser positivt påvirket at dyrking på myrjord, og ved gjødsling, med 50-100 kgN/Ha. Ved dyrking kan felt anlegges på drill eller på flatt land og med eller uten jorddekke duk. Man kan regne med mellom 4400 – 6200 planter per daa. Plantene står gjerne på felt i 3-5 år og vekt av de underjordiske plantedelene per plante ligger da på rundt 500 g friskvekt, tørrstoff % ligger på ca 25-30%. Innhold av sekundære metabolitter er høyst ved blomstring, men siden vekten øker en del hen mot høsten kan det lønne seg å høste etter nedvisning. Etter høsting bør de underjordiske plantedelene enten bearbeides med det samme eller oppbevares ved temperaturer under 5°C før bearbeiding. Røtter og jordstengel vaskes, snittes og tørkes før lagring. Tørketemperaturen bør ikke være over 50°C. Det er stort potensial for dyrking av rosenrot i Norge og stor etterspørsel etter produktet. For at norske produsenter skal komme inn på dette marked kreves innsikt i, og mulighet for, produktutvikling og kontrakter med aktuelle avtakere.
Sammendrag
Landfilling remains a widely used and economically viable waste disposal method, particularly in regions with limited access to advanced treatment technologies. However, once these sites reach capacity and are closed, their long-term environmental management becomes a critical concern for municipalities and stakeholders. This study explores post-closure landfill management strategies by examining three closed landfill cases in Norway. A literature review was conducted to establish a baseline understanding of current practices and gaps. Despite previous research on landfill gas utilization and waste-to-energy technologies, there is a lack of empirical, site-specific studies addressing the long-term aftercare and post-closure management of closed landfills in European contexts. Therefore, this study addresses this gap by providing a case-based assessment of closed landfill management practices in Norway. Findings were synthesized using a SWOT (Strengths, Weaknesses, Opportunities, Threats) analytical framework to assess both internal and external influencing factors. The results highlight key strengths, including existing gas monitoring systems and recycling efforts, as well as critical weaknesses, such as infrastructure instability and limited historical assessment data. Opportunities are found in areas such as methane mitigation, circular economy integration, and land reuse planning, while threats include financial constraints and long-term maintenance concerns. Drawing on these insights, the study emphasizes the importance of developing integrated aftercare strategies that incorporate environmental monitoring, risk assessments, and cost-benefit analyses tailored to site-specific conditions. These insights are valuable for stakeholders, including municipalities, policymakers, landfill owners, national authorities, industries, and waste management companies, in shaping future initiatives for repurposing landfills.
Sammendrag
Plant genotypes can vary in multiple functional traits due to adaptation to heterogenous environments. However, whether such variation can extrapolate to effects on soils and further on performance of subsequent plants, thus generating a genotypic variation in soil legacy, remains unclear. In this study, we studied how plant genotypic variation impacts soil legacy when exposed to aboveground insect herbivores. We used 11 wild genotypes of woodland strawberry (Fragaria vesca L.) experimentally exposed to leaf beetles (Galerucella tenella) to condition live soil. We then replaced the conditioning plants with naïve plants to examine soil legacy effects on growth and resistance on the subsequent plant genotype (referred to as the focal genotype) against the generalist herbivore Spodoptera littoralis. This allowed us to test the extent to which plant genotypic variation in soil legacy is altered by aboveground herbivory. We found an overall positive soil legacy effect of woodland strawberry, indicated by 69.9% higher belowground biomass of the subsequent focal genotype grown in conditioned soil compared to in unconditioned soil. We also observed a genotype-dependent soil legacy effect on performance of S. littoralis indicated as relative growth rates reduced by 37.9% on the subsequent focal genotype in soil conditioned by the focal genotype itself compared to by other genotypes, though the legacy effect was cancelled out when conditioning genotypes were exposed to G. tenella herbivory. A genotypic variation was further detected in soil legacy on the efficiency of conversion of ingested food by S. littoralis caterpillars feeding on the focal genotype. However, the genotypic variation was only present when the focal genotype was excluded from the conditioning genotypes at the exposure of G. tenella herbivory. Collectively, our study shows a conditional plant genotype-dependent soil legacy effect on herbivore resistance (measured as herbivore performance) rather than on plant growth, and the magnitude of the legacy effects depends on both the identity of the conditioning genotypes and the measures of the herbivore resistance. The findings of this study provide new insights into how plant genotypes or herbivory affects soil feedback on plant growth and herbivore resistance.
Sammendrag
Abstract Defence priming enhances plant responsiveness to future stress following prior exposure, and has been extensively characterised in annual model species as a reversible state associated with faster or stronger defence activation. However, studies in long-lived plants indicate that priming responses can be elicitor-specific, developmentally variable and closely linked to environmental history. In trees, priming is often strongest in early life stages, while in mature individuals defence responses are more frequently associated with direct activation and stabilised regulatory states. Evidence across systems shows that priming can operate over multiple timescales, from short-term reversible responses to longer-lasting effects that influence response thresholds and activation kinetics. Epigenetic mechanisms, including DNA methylation and chromatin modification, contribute to these processes and may persist across cell divisions or developmental transitions. Together, these findings highlight the importance of developmental stage and temporal context in shaping plant defence responses.
Forfattere
Theresa Weigl Jorunn Børve Melissa Magerøy Hanne Larsen Carl Gunnar Fossdal Siv Fagertun RembergSammendrag
The physiological disorder soft scald may cause losses in apple fruit storage. This study aimed at understanding the interplay between fruit maturity at harvest and storage temperature on soft scald development in the susceptible cultivar ‘Red Aroma’. Fruit harvested late and subsequently stored at −0.5 °C developed the significantly highest soft scald incidence. Overall ethylene and CO2-production was reduced in late harvested fruit stored at −0.5 °C, while fruit from the early harvest showed a cold-induced ethylene increase under the same storage conditions, suggesting an active cold-acclimation response. Clustering of RNA sequencing data and overrepresentation analysis revealed that transcripts involved in cell wall modification, ripening-associated signaling, antioxidant defense system and secondary metabolism were upregulated in late harvested fruit at harvest as well as soft scald-affected fruit after storage. In contrast, early harvested fruit at harvest and disorder-free fruit after storage showed higher expression of transcripts associated with abiotic stress resistance, such as leucine-rich repeat receptor-like kinases, protein kinases with tetratricopeptide repeat domains, and auxin response factor, indicating a potential link between early maturity and enhanced cold tolerance in ‘Red Aroma’ apple fruit.
Forfattere
Eldrid Lein MoltebergSammendrag
Det er ikke registrert sammendrag
Forfattere
Per Jarle MøllerhagenSammendrag
Det er ikke registrert sammendrag