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
Report research – Klimagassregnskap for norske veksthusprodukter
Michel Verheul, Stig Morten Thorsen
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Lund, BenedicteAbstract
Rapporten skal gi en statusoversikt for dagens drift og funksjonalitet ved Genbanken, og NordGens oppfatning av fremtidige muligheter.
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Anette Moldestad Ellen Mosleth Færgestad Bernt Hoel Anne Kjersti UhlenAbstract
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Authors
Ellen Mosleth Færgestad Anette Moldestad Bernt Hoel Arne Oddvar Skjelvåg Anne Kjersti UhlenAbstract
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Abstract
Development of ontogenic resistance to powdery mildew (Podosphaera aphanis) on strawberry leaves has been reported, however, the components of resistance have not been elucidated. Five developmental stages of strawberry leaves were identified and assigned numerical values from newly emerged and unexpanded (S1) to fully expanded and dark green (S5) of cvs. Korona and Senga Sengana. The upper and lower surface of the leaves were inoculated from each of the five leaf developmental stages and incubated under controlled conditions. The effect of leaf age on germination, infection efficiency, latency period, and sporulation were later evaluated. All responses were significantly (p = 0.05) affected by leaf age. Germination percentage, infection efficiency, and sporulation were highest, and latent periods were shortest on S1 leaves of both cultivars. On Senga Sengana, germinating conidia produced fewer secondary hyphae during infection. Conidia produced very few secondary hyphae and did not sporulate on S3 leaves, and no infections established on S4 or S5 leaves. The high success of infection and colonization of P. aphanis on S1 leaves indicates that disease is established preferentially on emergent and expanding leaves and these should be the target of management strategies.
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Till SeehusenAbstract
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