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.
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Virulence mechanisms of Phytophthora cactorum and defence responses by its strawberry host
(PhD thesis;2021:76, Doctoral thesis, 2021)Crown rot and leather rot in strawberry are caused by two distinct pathotypes of Phytophthora cactorum. The crown rot (CR) pathotype can infect both rhizomes and fruits, whereas the leather rot (LR) pathotype can only ... -
Growth, hydraulic and transcriptomic responses to high air humidity and the involvement of abscisic acid (ABA)
(PhD Thesis;2021:65, Doctoral thesis, 2021)The aerial environment, which includes relative air humidity (RH), temperature, vapour pressure deficit (VPD) and CO2 availability, affects plant growth and development in many ways. The aerial environment determines ... -
Fungicide resistance and resistance dynamics in Botrytis populations in Norway
(PhD Thesis;2022:6, Doctoral thesis, 2022)Grey mould, caused by Botrytis spp., causes serious losses in agriculturally and economically important crops worldwide. Growers in Norway have experienced grey mould control problems, and fungicide resistance in the ... -
Yield and quality of vegetables fertilized with materials recycled from organic resources
(PhD Thesis;2021:64, Doctoral thesis, 2021)Agriculture, aquaculture, fishery and households generate large amounts of organic wastes with high contents of nitrogen (N) and other nutrients. Concurrently, supply of off-farm N resources into horticultural production ... -
Detection and validation of disease resistance QTL in wheat
(PhD Thesis;2018:02, Doctoral thesis, 2018)Powdery mildew (PM), Fusarium head blight (FHB) and Septoria leaf blotch (SNB) are devastating wheat diseases. Breeding of disease resistant varieties is an economical and environmentally friendly approach and is given ... -
Resistance to Septoria nodorum leaf blotch and the importance of sensitivity to necrotrophic effectors in Norwegian spring wheat
(PhD Thesis;2017:63, Doctoral thesis, 2017)Wheat is one of the most important food crops worldwide. In normal years, the proportion of food quality wheat grown in Norway exceeds 50 %. However, the quality and yield can be significantly challenged by unfavorable ... -
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 ... -
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 ... -
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) ... -
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 ... -
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 ... -
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 ... -
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 ... -
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 ... -
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 ... -
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 ... -
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 ... -
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, ... -
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 ... -
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 ...
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