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
Sammendrag
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Sammendrag
Red raspberry (Rubus idaeus L.) is an economically important small fruit species, rich in antioxidants and other phytochemicals (Rao and Snyder, 2010). Most research in the area of screening the antioxidant activity in dietary plants have mainly been focused on variation among species and cultivars and effects of postharvest handling and storage (e.g. Kalt et al., 2002). Little is known about the impact of environmental factors such as temperature and light conditions. The use of plastic tunnels for out-of-season production of red raspberries has expanded production in Norway. This involves a change in climate environment which might influence the chemical composition of the fruits. Here we present the results of an investigation of temperature on fruit quality of red raspberry (Remberg et al., 2010).
Forfattere
Line Meinert RødSammendrag
Presentasjon av JOVA-programmet for Jordbruksverket, Sverige.
Forfattere
Inger HansenSammendrag
Informasjon om Norsk viltskadesenter, arbeidsområder, fagpersonell og websider
Forfattere
David M. Gadoury Belachew Asalf Tadesse M Heidenreich Maria Herrero MJ Welser Robert C Seem Anne Marte Tronsmo Arne StensvandSammendrag
A collection of four clonal isolates of Podosphaera aphanis was heterothallic and was composed of two mutually exclusive mating types. Cleistothecial initials approximate to 20 to 30 mu m in diameter were observed within 7 to 14 days after pairing of compatible isolates and developed into morphologically mature ascocarps within 4 weeks after initiation on both potted plants maintained in isolation and in field plantings in New York State and southern Norway. Ascospores progressed through a lengthy maturation process over winter, during which (i) the conspicuous epiplasm of the ascus was absorbed; (ii) the osmotic potential of the ascospore cytoplasm increased, resulting in bursting of prematurely freed spores in water; and, finally, (iii) resulting in the development of physiologically mature, germinable, and infectious ascospores. Release of overwintered ascospores from field collections was coincident with renewed plant growth in spring. Overwintered cleistothecia readily dehisced when wetted and released ascospores onto glass slides, detached strawberry leaves, and leaves of potted plants. Plant material exposed to discharged ascospores developed macroscopically visible mildew colonies within 7 to 10 days while noninoculated controls remained mildew free. Scanning electron and light microscopy revealed that cleistothecia of P. aphanis were enmeshed within a dense mat of hyphae on the persistent leaves of field-grown strawberry plants and were highly resistant to removal by rain while these leaves remained alive. In contrast, morphologically mature cleistothecia on leaves of nine deciduous perennial plant species were readily detached by simulated rain and seemed adapted for passive dispersal by rain to other substrates. Contrary to many previous reports, cleistothecia appear to be a functional source of primary inoculum for strawberry powdery mildew. Furthermore, they differ substantially from cleistothecia of powdery mildews of many deciduous perennial plants in their propensity to remain attached to the persistent leaves of their host during the intercrop period.
Populærvitenskapelig – Innavl hos gran og furu?
Mari Mette Tollefsrud, Øystein Johnsen, Tore Skrøppa
Sammendrag
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Forfattere
Annbjørg Øverli KristoffersenSammendrag
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Forfattere
Annbjørg KristoffersenSammendrag
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Forfattere
Torstein H. Garmo Anne Kjersti Bakken Åshild T. RandbySammendrag
Blad/stengel-tilhøvet er rekna for å vera ein god indikator på kvaliteten av beitegrøde og innhausta grovfôr. Fiber- og råproteininnhald i slike plantedelar hos timotei vart her funne å endre seg mykje, men ikkje i same takt gjennom vårveksten. Tilhøvet mellom desse organa er derfor ikkje alltid og åleine eit eintydig kvalitetsmål.Les/last ned PDF av artikkel og presentasjon under "Les meir" til høgre.
Forfattere
Audun Korsæth Marianne Bechmann Gustav Fystro Matthias Koesling Jan Netland Eivind Vangdal Astrid Johansen Tor J. JohansenSammendrag
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