Hopp til hovedinnholdet

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

Scandinavian countries, including Norway, is in marginal areas for commercial strawberry production, but the culture is still an important hortucultral crop. There is an increasing demand for new and better cultivars for the regional conditions in the industry. The Norwegian strawberry breeding program has lasted more than 40 years and several cultivars have been released. In 2002 the National Norwegian strawberry breeding program was privatized to Graminor Breeding Ltd. The program has responsibility to supply the Norwegian market with new well-adapted and productive strawberry cultivars with high berry qualities, in order to add to the profitability of the growers. Graminor Breeding Ltd. is also representing foreign cultivars in Norway. Three new cultivars have been launched in 2007: "Gudleif", "Iris" and "Blink". 

Sammendrag

The objective of this work was to investigate how primary disease levels of powdery mildew (Podosphaera aphanis) in strawberry (Fragaria × ananassa) influence disease development in time and space. Experiments were repeated over two seasons in field trials in Norway (Ås, cv. Korona) and USA (Geneva, NewYork, cvs. Earliglow and Elan). Five-row plots of 50 to 100 mildew-free plants (planting distance 0.45 x 1.2 m) were established each year within large grain fields, with a minimum distance of 90 m between plots, and no fungicide treatments. At start of the experiments, plants at the center of each plot were inoculated with 0, 1, 10, or 100 mildew-infected leaflets. Uninoculated plots developed only trace levels of powdery mildew, despite nearby diseased plots. More rapid and severe disease development was observed in the inoculated plots; e.g., mildew was observed on 31, 36, 311, and 912 leaflets in the 0, 1, 10, and 100 plots, respectively, in Norway in year 1 of the trial. Within the plots, disease development was highest close to the inoculum source and downwind from the prevailing wind. It may be concluded that in the absence of nearby sources of contamination, disease severity in strawberry plantings is determined by the dose of initial inoculum resident within the planting. The practical impact of the trials was to demonstrate long-lasting benefits of clean, mildew-free planting stock in commercial strawberry production, even in areas where the pathogen is endemic and the environment is very conducive to disease.

Sammendrag

At bregnen strutseving er spiselig er ikke så godt kjent. At den også er en svært næringsrik plante burde få flere til å bruke den. Strutseving er en godt synlig bregne i den norske natur. Den kan bli rundt 2 m høy og vokser ofte i store grupper. Den forekommer i lavlandet i det meste av Norge, men er mindre vanlig i ytre Agder, Rogaland og Finmark (Lid og Lid 1994). For øvrig forekommer den sirkumboreal i et belte rundt den nordlige halvkulen gjennom Europa, Asia og Nordamerika. Det latinske navn er Matteúccia struthiópteris (L.) Tod. På norsk kjennes planten bl.a. under navnet strutseving eller bispestav, og på engelsk Ostrich fern og "fiddleheads". Strutseving og Ostrich fern kommer fra det latinske struthiópteris og refererer til formen på de utvokste bladene, mens navnet bispestav og det engelske fiddelheads viser til formen på de spiselige nye skudd. http://www.skogoglandskap.no/Artsbeskrivelser/strutseving

Sammendrag

The main objective of this study was to establish recommendations for lime and mineral fertilisations to winter wheat crop. Reserches were organized in the experimental plot  from  SC Agrotehnic SRL Păuleşti and endorsed the establishments of mineral nutrition status of plants and comparative study on recommendations of the phosphorus fertilisation applied in Romania and in Norway. Recommendations of fertilisation were determined according with soil data and mineral nutrition status of wheat, Renan variety

Til dokument

Sammendrag

Denne utgreiinga gjev ei oversikt over stølsdrifta i Valdres og har sett på kva som skal til for at gardbrukarane vil fortsette med stølsdrift og/eller grunnar til at dei sluttar med stølsdrift. Fokuset er på ”flaskehalsar” for stølsdrift, både innan landbruksdrifta og i eventuelle tilleggsnæringar knytt til stølsdrifta. Metoden er 19 intervju med stølsbrukarar, ansatte på landbrukskontor og prosjektleiarar. Konklusjonen er at det er økonomien i landbruket og i småskala turisme og foredling som er den største trusselen for stølsdrifta. Men det er også andre flaskehalsar, som teknisk standard og mangel på straum som kan gjere fortsatt stølsdrift vanskeleg. Innan småskala turisme har arbeidet med produktutvikling og profesjonalisering eit stykke igjen, men det er på tur. I oppsummeringa trekker me fram nokre moment som det bør fokuserast meir på.

Sammendrag

Mould growth on exterior coated cladding façades is an undesirable element; it is considered to be major maintenance concern and will often shorten the aesthetical service life of the façade. On the other hand, rapid colonisation and colour change of unpainted wooden claddings is often anticipated and used as a design element. Wood is a biological building product, and individual components in a building will vary in appearance, properties and performance. Life expectancy of wood and wood-based products is related to a number of factors. Mould growth on painted surfaces is influenced by type and concentration of film fungicides, the paint formulation and the wood material, and wooden cladding may experience exponential fungal deterioration caused by variation in the climatic factors, often within a small limited area. The overall objective of this thesis was to gain in-depth knowledge about which factors influence surface mould growth on coated and uncoated wooden cladding in an outdoor environment, with a special attention to modified wood substrates. The work included identification of fungal species on the surface of coated substrates, studies of modified wood substrates\" susceptibility to mould growth, investigation of paints with different physical surface structures and their influence on surface mould growth, identification and quantification of factors that contribute to variation in surface mould growth and prediction of future performance of combinations of wood substrates and coating systems.....