Blar i NIBIO Brage på forfatter "Rognli, Odd Arne"
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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 ... -
Dyrking av grovfor i et endret klima
Persson, Tomas; Höglind, Mats; Dalmannsdottir, Sigridur; Jørgensen, Marit; Rognli, Odd Arne; Østrem, Liv (NIBIO POP;3(24) 2017, Journal article, 2017-11)KORT OM KLIMAFRAMSKRIVNINGER I NORGE. Klimaet i Norge er i endring og klimaframskrivinger fram mot 2100 viser økende middeltemperatur og nedbør stort sett over hele Norge. Temperaturøkningen er forventet størst nord i ... -
Global transcriptome changes in perennial ryegrass during early infection by pink snow mould
Kovi, Mallikarjuna Rao; Abdelhalim, Mohamed; Kunapareddy, Anil; Ergon, Åshild; Tronsmo, Anne Marte; Brurberg, May Bente; Hofgaard, Ingerd Skow; Asp, Torben; Rognli, Odd Arne (Journal article; Peer reviewed, 2016)Lack of resistance to pink snow mould (Microdochium nivale) is a major constraint for adaptation of perennial ryegrass (Lolium perenne L.) to continental regions with long-lasting snow cover at higher latitudes. Almost all ... -
Pathogenicity, host specificity and genetic diversity in Norwegian isolates of Microdochium nivale and Microdochium majus
Abdelhalim, Mohamed Ibrahim Mohamed; Brurberg, May Bente; Hofgaard, Ingerd Skow; Rognli, Odd Arne; Tronsmo, Anne Marte (Peer reviewed; Journal article, 2020-01-31)Microdochium majus and Microdochium nivale cause serious disease problems in grasses and cereal crops in the temperate regions. Both fungi can infect the plants during winter (causing pink snow mould) as well as under cool ... -
Trait characterization of genetic resources reveals useful variation for the improvement of cultivated Nordic red clover
Zanotto, Stefano; Palmé, Anna; Helgadóttir, Áslaug; Daugstad, Kristin; Isolahti, Mika; Öhlund, Linda; Marum, Petter; Moen, Maria Ahlin; Veteläinen, Merja; Rognli, Odd Arne; Ergon, Åshild (Peer reviewed; Journal article, 2021-03-20)Red clover (Trifolium pratense L.) is the most important forage legume in the Nordic region, but its utilization is limited by poor persistency. The improvement of cultivated red clover can potentially take advantage of ... -
Vernalization Requirement and the Chromosomal VRN1-Region can Affect Freezing Tolerance and Expression of Cold-Regulated Genes in Festuca pratensis
Ergon, Åshild; Melby, Tone Ingeborg; Höglind, Mats; Rognli, Odd Arne (Journal article; Peer reviewed, 2016-02-25)Plants adapted to cold winters go through annual cycles of gain followed by loss of freezing tolerance (cold acclimation and deacclimation). Warm spells during winter and early spring can cause deacclimation, and if ... -
Yield predictions of timothy (Phleum pratense L.) in Norway under future climate scenarios
Hellton, Kristoffer Herland; Amdahl, Helga; Thorarinsdottir, Thordis; Alsheikh, Muath K; Aamlid, Trygve S.; Jørgensen, Marit; Dalmannsdottir, Sigridur; Rognli, Odd Arne (Peer reviewed; Journal article, 2023-07-26)The perennial forage grass timothy (Phleum pratense L.) is the most important forage crop in Norway. Future changes in the climate will affect growing conditions and hence the yield output. We used data from the Norwegian ...