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
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Forfattere
Subal C. Kumbhakar Gudbrand LienSammendrag
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Forfattere
Markku Husso Erlend NybakkSammendrag
Drawing upon the resource-based view (RBV) of the firm and Porter’s five forces, this study examines CEOs’ perceptions of the drivers of competitive advantage in Finnish and Norwegian small- and medium-sized (SME) sawmills. Using qualitative data from CEO interviews and secondary data sources, the results show differences in relevant resources among SME sawmills. In some cases, high-quality raw material is a driver of above-average industry performance, while certain organizational resources, together with correct positioning within an industry, are a way to compensate for a lack of other sources of competitive advantage. Resources such as advanced production technology or a flat organizational structure are essential to diluting the weaknesses of the case companies. Our cases also clarify the important role of intangible resources (e.g., personnel being willing to change).
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Soppen Cylindrocladium buxicola vart i august 2010 stadfesta på buksbom (Buxus sempervirens) i ein privathage i Oslo, og seinare på hausten i Rogaland. C. buxicola vart også funnen på importerte planter i fleire hagesenter i Akershus. Det er difor all grunn til å tru at infiserte planter er spreidde over store område og kan koma til å smitta ned tidlegare etablert buksbom. Infeksjon fører til sterkt bladfall og visning.
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Formålet med notatet har vært å beskrive status og utviklingstrekk på importvern for norsk jordbruk. Metoden omfattet kvantitativ dataanalyse og litteraturgjennomgang. Dataene er tatt fra offentlig tilgjengelige kilder herunder NILF, OECD, SSB og internasjonale forskningsinstitusjoner. […]
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This review describes the effects of the current and emerging lighting technologies on plants, and the plant-mediated effects on herbivorous and beneficial arthropods in high-technology year-round greenhouse production, where light quality, quantity and photoperiod differ from the natural environment. The spectrum provided by the current lighting technology, high-pressure sodium lamp (HPSL), differs considerably from that of solar radiation. The major plantmediated effects on arthropods were predicted to result from (a) extended photoperiods and lower light integrals, (b) the attenuation of ultraviolet (UV) wavelengths, particularly UV-B, (c) the high red: far-red (R : FR) ratio and lower blue : red (B : R) in comparison with solar radiation and (d) the high proportion of yellowwavelengths during winter months. Of these light factors (a-d) (ceteris paribus), (a) and (b) were hypothesised to result in increased performance of herbivores in winter months, whereas the high R : FR ratio decreased herbivore performance or not affected it, at least when interlights are used. The predictions obtained on the basis of this review are also discussed in relation to the modifying factors prevailing in these production environments: enriched CO2 levels, high nutrient amounts, optimised irrigation and temperatures optimal for plants" needs. Based on the carbon/nitrogen and growth/differentiation balance theories, these modifying factors tend to produce plants that allocate most resources to growth at the expense of defensive secondary metabolism and physicochemical defensive structures. At the end, this review discusses knowledge gaps and future research prospects, in which light-emitting diodes, the emerging lighting technology, play an important role by enabling the targeted manipulation of plant responses to different wavelengths.
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