Doctoral theses (IPV)
Unless otherwise stated on the individual theses, the works in this collection are licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Recent Submissions
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Phenotypic and genetic studies of waterlogging tolerance in wheat and barley
(PhD Thesis;2018:50, Doctoral thesis, 2018)Stress caused by waterlogging may have considerable impact on yields of wheat, barley and other crops. As climate change projections include increased precipitation in parts of the world, one can expect an increasing demand ... -
Stomatal functioning and abscisic acid (ABA) regulation in plants developed in different air humidity regimes
(PhD Thesis;2013:29, Doctoral thesis, 2013)Greenhouse as a production system is important in the production of vegetables, herbs and ornamental plants. However, plant production in continuous high relative air humidity (RH) may results in poor plant quality, due ... -
Photosynthesis and growth at high day temperatures in a CO2 enriched atmosphere
(PhD Thesis;2013:75, Doctoral thesis, 2013)Increasing energy prices have led to the attempt of energy saving and are one of the main research areas in greenhouse plant production. Technical disintegration has been developed, and the greenhouse concept ‘Closed/Semi-Closed ... -
Lysiphlebus testaceipes (Cresson) (Hymenoptera: Braconidae, Aphidiinae) in Benin : its potential as a biological control agent for integrated aphid management in vegetable systems
(PhD Thesis;2013:41, Doctoral thesis, 2013)In Benin, vegetable producers’ reliance on toxic synthetic pesticides threatens the environment and human health. However, the recent discovery of Lysiphlebus testaceipes (Cresson) (Hymenoptera: Braconidae, Aphidiinae) in ... -
Evolution of adaptations to temperate climate in the grass subfamily Pooideae
(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 ... -
Fusarium verticillioides and fumonisin management in maize in Ethiopia
(PhD Thesis;2016:18, Doctoral thesis, 2017-07-11)Fusarium species are major threats to maize production worldwide, including in Ethiopia. Little has been known about the species composition and prevalence of Fusarium spp. as well as fumonisin contamination level of maize ... -
Resistance studies and genetic characterization of the barley : Pyrenophora teres pathosystem
(PhD Thesis;2017:52, Doctoral thesis, 2017)Net blotch is a major barley disease in Norway caused by the necrotrophic fungus Pyrenophora teres, which can cause yield losses of up to 40% under conducive conditions. Two forms of this pathogen, P. teres f. teres (Ptt) ... -
Improving the seed yield potential of tetraploid red clover (Trifolium pratense L.)
(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 ... -
Control of rush (Juncus spp.) : an expanding weed in grassland areas in Western Norway
(PhD Thesis;2016:83, Doctoral thesis, 2016)The perennial weeds soft rush (Juncus effusus L.) and compact rush (J. conglomeratus L.) have become an increasing problem in grassland in Western Norway and other European countries with high annual precipitation. Their ... -
Influence of genotype and climatic environment on fruit yield and chemical composition of black currant (Ribes nigrum L.)
(PhD Thesis;2016:40, Doctoral thesis, 2017-07-07)Black currant (Ribes nigrum L.) is a widely cultivated soft fruit species, which is renowned for its high berry concentrations of proven, or presumed, health-promoting compounds. Over the last years, there has been a ... -
Microdochium nivale in perennial grasses : snow mould resistance, pathogenicity and genetic diversity
(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 ... -
Impact of UV radiation on plant growth and development in different climatic regimes
(PhD Thesis;2015:19, Doctoral thesis, 2017-07-06)Ultraviolet (UV) radiation has various effects on the growth, morphology, and biochemical composition of plants. Currently, there is an increasing interest in the manipulation of UV radiation in glasshouses, polythene ... -
Potato quality during storage: effect of maturity level and ventilation strategies : studies on the storage disease Fusarium dry rot
(PhD Thesis;2016:31, Doctoral thesis, 2017-07-06)Storage losses of Norwegian potatoes are estimated to approximately 10%. The losses are caused by respiration, transpiration, germination and diseases. These are processes that can be managed by controlling storage conditions ... -
Effects of storage time, temperature and modified atmosphere on sensory quality and health related compounds in fresh-cut swede and turnip
(PhD Thesis;2015:9, Doctoral thesis, 2017-07-06)Introducing new fresh-cut vegetable products onto the market may increase vegetable consumption. Usually the availability of Norwegian grown vegetables for fresh-cut production is limited by a short growing season. However, ... -
Winter hardening of Norwegian perennial forage crops in a prolonged growing season
(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, ... -
The effects of temperature during grain filling on gluten quality of bread wheat (Triticum aestivum L.)
(PhD Thesis;2015:35, Doctoral thesis, 2017-07-06)Wheat production in Norway occurs at the highest latitudes among wheat production areas worldwide, and with lower growth temperature. The proportion of Norwegian wheat in total wheat consumed for food has increased from ... -
Health-related compounds in broccoli (Brassica oleracea L. var. italica) as affected by postharvest temperature, light and UV-B irradiation
(PhD Thesis;2016:05, Doctoral thesis, 2017-07-06)Broccoli (Brassica oleracea L. var. italica) belongs to Brassica vegetables, consumption of which has been shown to reduce the risk of several types of cancer and cardiovascular disease mortality in epidemiological studies. ... -
Genetic engineering and light quality as tools to control shoot elongation in poinsettia (Euphorbia pulcherrimaWilld ex Klotzsch)
(PhD Thesis;2013:42, Doctoral thesis, 2013)Poinsettia (Euphorbia pulcherrima Willd ex Klotzsch) is a non-food and non-feed, vegetatively propagated ornamental plant which is among the economically most important ornamentals worldwide. Desirable plant height is one ... -
Winter hardiness and management of velvet bentgrass (Agrostis canina) on golf greens in the Nordic climate
(PhD Thesis;2011:14, Doctoral thesis, 2011)Major concerns for the introduction of velvet bentgrass (Agrostis canina) on Nordic golf courses are whether current cultivars have sufficient winter hardiness, and if it is possible to control the rapid thatch formation ... -
Genetics of Pooideae freezing tolerance : an evolutionary perspective
(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 ...
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