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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.

2008

Sammendrag

Veksten i antall virksomheter registrert hos Debio fortsetter. Trenden fra 2007 videreføres, med størst vekst i antall bedrifter som driver salg og foredling av økologiske produkter. Det blir fremdeles flere primærprodusenter med økologisk godkjenning, men veksten her er ikke like stor.

Sammendrag

En allsidig gårdshage kan være en arena for å øke inntektsgrunnlaget på gården. Den kan ha funksjoner knyttet til undervisning eller økoturisme.

Til dokument

Sammendrag

The discussion paper suggests a novel procedure for measuring performance in dairy marketing cooperatives. Conventionally, performance in these cooperatives is evaluated through a single measure; i.e. the price of raw milk. This «single signal» measurement procedure is reasonable in a situation where the level of capitalization of the cooperative is ignorable. But this condition does not hold true in current European dairy markets. We suggest an alternative performance measurement procedure, the core idea of which is to separate milk content from dairy product value. This enables a distinction between monetary returns to milk from monetary returns to invested capital. This «dual signal»- approach represents a more transparent picture of dairy cooperative performance, provides members with purer on-farm (production) and in-cooperative investment incentives and equips them with performance data that enable them to exercise better control over their cooperative.

Sammendrag

In 1996, a survey on cavity spot started in Norway. Among the Pythium species isolated from the lesions a pathogenic Pythium was found that could not be identified neither by morphological nor by molecular methods (ITS sequencing). This Pythium sp. was repeatedly detected using specific primers developed for this propose and in many cases isolated from cavity spots lesions. The isolates from the new species do not produce zoospores. Oogonia are smooth walled and mostly intercalary with an average size about 20µm. Oospores are aplerotic with an average diameter approximately 17 µm and wall less then 2 µm thick. Antheridia are mostly monoclinous with a sort stalk or sessil, but diclinous antheridia are also common. The modal number of antheridia per oogonium is one or two. Some differences are observed between the isolates studied. Some isolates have a daily growth rate of ca 23 mm on PCA at 25 °C while others have a growth rate around 28 mm. The isolates that grow slower have a tendency to produce one antheridium per oogonium while the isolates with higher growth rates normally produce two. These two groups could also be differentiated based on their ITS sequences which showed 97.8% identity in the 955 base pair rDNA fragment. By using the developed PCR primers it is possible to detect isolates that do not produce the sexual stage in single cultures. These isolates have the same ITS sequence and a similar growth rate and pattern than the fast growing fertile ones.