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
Forfattere
Lena Lie NymoenSammendrag
Det er ikke registrert sammendrag
Forfattere
Arne Stensvand David M. Gadoury Håvard Eikemo Andrew Dobson M. Catherine Heidenreich Robert C. SeemSammendrag
Field trials at Ås, Norway and Geneva, NY, USA revealed a substantial impact of initial levels of powdery mildew (Podosphaera macularis) upon disease development in strawberry (Fragaria × ananassa). Five-row plots of 50 to 100 mildew-free plants (planting distance 0.45 × 1.2 m) were established each year within large grain fields with a minimum distance of 90 m between plots and were left untreated with fungicides. Beginning each season, 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 and wild strawberries in both Norway and NY trials over 3 years. 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, and reached only 6 leaves per plot in the 0 plot in year 2. Spatiotemporal analyses were subsequently performed, but 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
This presentation is on modeling the effect of pre budbreak climatic conditions on ascospore maturation in the apple scab fungus (Venturia inaequalis).
Forfattere
Maria HerreroSammendrag
Det er ikke registrert sammendrag
Sammendrag
Det er ikke registrert sammendrag
Forfattere
Helge BerglannSammendrag
This paper presents a simple system for efficient regulation under asymmetric information. Each firm’s income is controlled by a tax that depends on the firm’s own output and on a parameter construed as a share permit. These "shares of total expected output" lower a firm’s tax burden and are acquired in a competitive market. By employing this scheme, the planner only requires knowledge of marginal damage to induce the first-best outcome. Relative to a traditional cap-and-trade approach the system increases expected social welfare. If incentives for strategic behavior in the market exist, their impact may be scaled down.
Forfattere
Eva SkarbøvikSammendrag
Presentation at the DRIMON End-User Workshop in Ohrid, Macedonia, 3 June 2009. (www.drimon.no)
Forfattere
Ragnhild Nærstad Vinh Hong Le Arne Hermansen Asko Hannukkala Bent J Nielsen Jens G Hansen Lina Grönberg Björn Andersson Jonathan YuenSammendrag
Det er ikke registrert sammendrag
Forfattere
Johannes DeelstraSammendrag
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Forfattere
Geir-Harald StrandSammendrag
Det er ikke registrert sammendrag