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.
2000
Forfattere
Arild Andersen M. LindbladSammendrag
Gjennomgang av livssyklus, forekomst, skade og bekjempelse av havrebladminerflue og kornbladminerflue i korn i Sverige. Illustert.
Forfattere
H. Oskarsen Trygve S. AamlidSammendrag
Ragnar Hillestad, en av nestorene i norsk frøavl, døde 13.januar 2001. Artikkelen gir minneord.
Forfattere
Dag Fjeld Leif Egil Hem Tom Roar EikebrokkSammendrag
This study examines the role of forest operations strategies in sector development for Norway's fjord region. The paper starts with an examination of forest owner attitudes and perceptions in relation to their harvesting behaviour, use of contractor harvesting and road net extension. The influence of forest owner decisions, contractor mechanisation and road net extension standards on operational efficiency is examined in a simple deterministic model of the regional wood chain. Average wood procurement costs are calculated for increasing sector capacity. Direct and indirect harvesting costs are also followed throughout this development.
Forfattere
Lars Sandved Dalen Carl Gunnar Fossdal Inger Margrethe Heldal Nina Elisabeth Nagy Praveen Sharma Geir Østreng Anders Lönneborg Øystein JohnsenSammendrag
Plants are sessile and have to adjust to the prevailing environmental conditions of their surroundings. This has led to a development of a great plasticity in gene regulation, morphogenesis, and metabolism. Adaptation and defence strategies involve the activation of genes encoding proteins important in the acclimation or defence towards the different stressors.Some of the molecular responses to biotic and abiotic stress factors such as pathogenic fungi or drought are specific, but it has also been shown that similar genes are acitvated by several stressors.At the Norwegian Forest Research Institute we are currently developing a diagnostic tool using the induction pattern of several selected genes from Norway spruce to use as a fingerprint for different types of biotic and abiotic stress. The ultimate goal of this project is to be able to identify unique mRNA expression patterns specific for different stressors such as heat, cold, drought, pathogens etc.In order to study the induction pattern expressed under biotic and abiotic stress, Norway spruce seedlings grown on glass beads in a phytotron we have treated with drought, a root pathogenic fungi (Rhizoctonia sp.), and a combination of drought and the root fungal pathogen.Physiological measurements of height, weight, ion leakage, gas exchange, and chlorophyll fluorescence are taken troughout the experiment. In addition, we have used light and electron microscopy, and immunolocalization to study structural cell and tissue changes. The results so far show great variance in the expression patterns between treatments and over time.
Forfattere
Gunnlaug RøtheSammendrag
Artikkelen omhandler ulike metoder for moltekultivering og stell av dyrkingsfelt.
Forfattere
Svein Ole BorgenSammendrag
Det er ikke registrert sammendrag
Forfattere
Eirik Romstad Arild Vatn Per Kristian Rørstad Viil SøylandSammendrag
Multifunctionality is a systems oriented concept. It addresses the fact that in addition to the provision of private goods like food and fiber, agriculture also provides a set of public goods. The most central public good elements are: - Landscape values: biodiversity, cultural heritage, amenity value of the landscape, recreation/access, scientific/educational value. - Food related aspects: food security, food safety and food quality. - Rural activity: rural settlement and economic activity. Moreover, agricultural production results in negative external effects, like nutrient runoff, erosion, and pollution from pesticide and herbicide use. These aspects also need to be considered when designing policies and determining the extent and type of agriculture. The linkages between agricultural production and public good attributes imply that the costs of providing the public goods may vary. Polices directed at changing the amount of some public goods provided by agriculture will therefore influence domestic commodity production, and thereby als
Sammendrag
Det er ikke registrert sammendrag
Forfattere
H. LystadSammendrag
Det er ikke registrert sammendrag
Forfattere
Leif SundheimSammendrag
Det er ikke registrert sammendrag