Blar i Faculty of Biosciences (BioVit) på forfatter "Rognli, Odd Arne"
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Evolution of adaptations to temperate climate in the grass subfamily Pooideae
Schubert, Marian (PhD Thesis;2016:89, Doctoral thesis, 2016)Temperate biomes are characterized by strong temperature and photoperiod seasonality and frequently occurring frost. Temperate plants have evolved to overcome challenges like cold stress, prolonged winters and short ... -
Genetic diversity, selection signatures and nutritional composition of enset (Ensete ventricosum) from Ethiopia
Haile, Alye Tefera (PhD thesis;2023:50, Doctoral thesis, 2023)Most of the agrobiodiversity exists in the form of landraces and wild relatives in traditional smallholderbased farming systems. This diversity mainly exists among neglected and underutilized species, so called orphan ... -
Genetics of Pooideae freezing tolerance : an evolutionary perspective
Sandve, Simen Rød (PhD Thesis;2010:37, Doctoral thesis, 2010)Freezing tolerance is an important agricultural trait for forage and cereal grasses belonging to the Pooideae sub-family. Many plants, including the Pooideae grasses, go through a cold acclimation (CA) process when exposed ... -
Improving the seed yield potential of tetraploid red clover (Trifolium pratense L.)
Amdahl, Helga (PhD Thesis;2016:79, Doctoral thesis, 2016)Tetraploid red clover has similar forage properties as diploid red clover. However, tetraploid red clover plants are taller, have thicker stems, larger leaves and flower heads, and bigger seeds resulting in higher forage ... -
Microdochium nivale in perennial grasses : snow mould resistance, pathogenicity and genetic diversity
Abdelhalim, Mohamed (PhD Thesis;2016:32, Doctoral thesis, 2017-07-07)Forage production of perennial grass species in the northern hemisphere is limited by their winter survival ability. The predicted future changes in the environmental conditions constitute both opportunities and challenges ... -
Phenotypic characterization and ploidy level determination of perennial ryegrass (Lolium perenne L.) gene bank accessions and cultivars
Gylstrøm, Kristin Håland (Master thesis, 2020)Perennial ryegrass (Lolium perenne L.) is the most grown perennial grass species all over the world, because of the rapid regrowth and good nutritional composition. Winter survival is challenging when growing perennial ... -
A study of freezing tolerance in red clover (Trifolium pratense L.)
Zanotto, Stefano (PhD Thesis;2022:36, Doctoral thesis, 2022)The ability to tolerate freezing temperatures is one of the traits that allows successful overwintering of red clover (Trifolium pratense L.) at Nordic latitudes. Freezing tolerance (FT) is enhanced during a period of ... -
Vernalization and photoperiodic regulation of flowering time and population genetic stucture of Norwegian populations of Arabidopsis thaliana
Lewandowska-Sabat, Anna M. (PhD Thesis;2009:44, Doctoral thesis, 2009)Natural environmental conditions vary across seasons and therefore timing of flowering is a major determinant of plant reproductive success and a trait with a potentially high adaptive value. Plants have developed mechanisms ... -
Winter hardening of Norwegian perennial forage crops in a prolonged growing season
Dalmannsdottir, Sigridur (PhD Thesis;2015:88, Doctoral thesis, 2017-07-06)Current climate change models predict that the temperature increase due to global warming will be greatest at higher northern latitudes. Most probably, temperature will increase more during autumn and winter than summer, ...