Publications
NIBIOs employees contribute to several hundred scientific articles and research reports every year. You can browse or search in our collection which contains references and links to these publications as well as other research and dissemination activities. The collection is continously updated with new and historical material.
2023
Authors
Simon BergAbstract
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Authors
Arne Stensvand Katherine Ann Gredvig Nielsen Nina Trandem Vinh Hong Le Lill-Iren Hansen Anita SønstebyAbstract
The effect of steam thermotherapy on Botrytis spp. populations in strawberry transplants was evaluated. Tray plants rooted in 0.2 L peat plugs of seasonal flowering cvs. Falco, Sonsation, and Soprano, and everbearing cvs. Favori and Murano were pre-treated with steam at 37 °C for 1 h, followed by 1 h at ambient temperature and air humidity, and then 2 or 4 h steam treatment at 44 °C. Except for one cultivar with a slight reduction in yield, there were no negative effects on plant performance. Compared to untreated transplants, mean incidence of Botrytis on the five cultivars was reduced by 43 and 86% with the 2 and 4 h treatments, respectively. Within cultivars the reduction was significant in 2 and 3 experiments following the 2 and 4 h treatments, respectively. Sclerotia from four different isolates of Botrytis were subjected to treatment including 4 h of steam thermotherapy and subsequently tested for viability. Following 14 days of incubation, 90 to 100% (mean 97%) of treated sclerotia failed to produce mycelial growth compared with untreated sclerotia, which all germinated and produced mycelia. Botrytis isolates recovered from both treated and untreated strawberry transplants were tested for resistance to seven fungicides, including boscalid, fenhexamid, fludioxonil, fluopyram, pyraclostrobin, pyrimethanil and thiophanate-methyl. Multiple fungicide resistance was common; 35.5% of isolates were resistant to fungicides from at least three FRAC groups. Results indicate that steam thermotherapy treatment strongly reduces populations of Botrytis spp., including fungicide-resistant strains, in strawberry transplants with negligible negative impacts on the transplants.
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An expert workshop on C and N interactions was held online 6 – 7/11 2023, within project Kvävebegränsningar för kolbindning i skandinaviska skogar/Nitrogen constraints to carbon sequestration in Scandinavian forests, financed by the Nordic Working Group for Climate and Air (NKL). The workshop was organized in two half-day sessions. Sweden, Finland, Norway and Denmark were represented by experts involved in national reporting to the UNECE Air Convention (CLRTAP) and to the UN Climate convention (UNFCCC). This workshop report was prepared by the workshop organizers at IVL Swedish Environmental Research Institute, with contributions from all workshop participants.
Authors
Arne Stensvand Katherine Ann Gredvig Nielsen Nina Trandem Vinh Hong Le Lill-Iren Hansen Anita SønstebyAbstract
No abstract has been registered
Authors
Belachew Gizachew ZelekeAbstract
No abstract has been registered
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No abstract has been registered