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.
2013
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No abstract has been registered
Authors
Grete Lene Serikstad Anne-Kristin Løes Emma Brunberg Lise Grøva Håvard Steinshamn Kristin SørheimAbstract
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Trygve S. Aamlid M Niskanen David Wikmark Magnus Ljungman Wendy Marie Waalen Trond Olav Pettersen Jan TangsveenAbstract
This report presents results from two experimental series in 2012/13 testing the effect of new and already labeled fungicides for the control of Microdochium nivale and Typhula incarnata on golf courses in Norway, Finland and Sweden.
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2012
Authors
Anne-Grete Roer Hjelkrem Ottar Michelsen Audun Korsæth Trond Henriksen Anders Hammer StrømmanAbstract
No abstract has been registered
Authors
Anne-Grete Roer Hjelkrem Audun Korsæth Trond Henriksen Ottar Michelsen Anders Hammer StrømmanAbstract
No abstract has been registered
Abstract
Climate and weather variability affect agricultural crop production. The North Atlantic Oscillation (NAO) is the variation in air pressure difference in the northern Atlantic Ocean. A positive NAO index with higher than normal air pressure near the Azores and lower than normal near Iceland results in warm and wet winters in northwestern Europe. A negative NAO index gives opposite climatic effects in this region. We determined the effect of the NAO on the risk of frost injury in winter wheat for conditions that represent northwestern Europe by applying the FROSTOL model to dynamically simulate hardening, de-hardening and other physiological processes determining frost tolerance and frost injury in winter wheat. This model uses soil surface temperature and snow cover as driving variables. In total, 53 winter seasons from 1957-58 to 2009-10 were simulated to account for historical trends and variations in the NAO. Monthly and seasonal mean NAO indices for all years within this period were categorised into positive, neutral or negative phases. The winter wheat simulations included 3 locations in Norway (Apelsvoll, ås and Kvithamar), 2 wheat frost tolerance types and 3 planting dates. The results showed that negative NAO phases, especially in February and March, increased the risk of frost injury in winter wheat. The risk of frost injury was higher at Apelsvoll and ås than at Kvithamar, especially in negative NAO phases or after early planting. The results obtained can be used to design crop management practices and systems with higher production security.
Abstract
No abstract has been registered