Browsing Vitenskapelige artikler by Author "Østrem, Liv"
Now showing items 1-6 of 6
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Chlorophyll a Fluorescence and Freezing Tests as Selection Methods for Growth Cessation and Increased Winter Survival in ×Festulolium
Østrem, Liv; Rapacz, Marcin; Larsen, Arild; Marum, Petter; Rognli, Odd Arne (Journal article; Peer reviewed, 2018-08-20)In a ×Festulolium population (FuRs0357) of parental origin Lolium perenne × Festuca pratensis, selection of freezing tolerance by freezing tests on whole plants (FT) and chlorophyll a (Chl-a) fluorimetry on frozen detached ... -
Cold acclimation in warmer extended autumns impairs freezing tolerance of perennial ryegrass (Lolium perenne) and timothy (Phleum pratense)
Dalmannsdottir, Sigridur; Jørgensen, Marit; Rapacz, Marcin; Østrem, Liv; Larsen, Arild; Rødven, Rolf; Rognli, Odd Arne (Journal article; Peer reviewed, 2017-02-01)The effect of variable autumn temperatures in combination with decreasing irradiance and daylength on photosynthesis, growth cessation and freezing tolerance was investigated in northern- and southern-adapted populations ... -
Effect of grassland cutting frequency, species mixture, wilting and fermentation pattern of grass silages on in vitro methane yield
Weiby, Kim Viggo Paulsen; Krizsan, Sophie Julie; Dønnem, Ingjerd; Østrem, Liv; Eknæs, Margrete; Steinshamn, Håvard (Peer reviewed; Journal article, 2023-03-23)Mitigating enteric methane (CH4) emissions is crucial as ruminants account for 5% of global greenhouse gas emissions. We hypothesised that less frequent harvesting, use of crops with lower WSC concentration, ensiling at ... -
Growth pattern of Juncus effusus and Juncus conglomeratus in response to cutting frequency
Kaczmarek-Derda, Wiktoria Anna; Østrem, Liv; Myromslien, Merete; Brandsæter, Lars Olav; Netland, Jan (Journal article; Peer reviewed, 2018-07-23)Increasing abundance of Juncus effusus (soft rush) and Juncus conglomeratus (compact rush) in pastures and meadows in western Norway has caused reductions in forage yield and quality in recent decades. Understanding plant ... -
Impacts of soil moisture level and organic matter content on growth of two Juncus species and Poa pratensis grown under acid soil conditions
Kaczmarek-Derda, Wiktoria Anna; Helgheim, Marit; Netland, Jan; Riley, Hugh; Wærnhus, Kjell; Øpstad, Samson; Østrem, Liv; Brandsæter, Lars Olav (Journal article; Peer reviewed, 2019)The abundance of Juncus effusus (soft rush) and Juncus conglomeratus (compact rush) has increased in coastal grasslands in Norway over recent decades, and their spread has coincided with increased precipitation in the ... -
Sandy silt loam soil may hamper the inoculation effect on lucerne (Medicago sativa L.) growth
Sturite, Ievina; Lunnan, Tor; Østrem, Liv (Peer reviewed; Journal article, 2023-06-01)Despite newly approved lucerne cultivars, this has not led to increased use of this legume in high-latitude agriculture. Challenges with inoculation by Rhizobium meliloti have been identified as a bottleneck to adaptation. ...