3. Doktoritööd
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Assessment of Verticillium dahliae Kleb. And Soil Fungal Communities Associated with Strawberry Fields
(Eesti Maaülikool, 2017)Strawberry (Fragaria × ananassa) is a high value crop, and it is grown for its berries in many countries. Strawberry industry in Estonia has been fluctuating due to the limited selection of cultivars suitable for Nordic ... -
The perceivable landscape a theoretical-methodological approach to landscape
(Eesti Maaülikool, 2017)The goal of the case studies was to identify a semiosphere in landscape, the properties characteristic of memory and reminiscences, in order to identify the universal functioning mechanisms of the object and to comprehend ... -
Begomovirus infection in tomato fruit
(Eesti Maaülikool, 2017)In an era of globalization and increased food trade, and considering the implementations of climate change on establishment of pathogens into new areas, it is of importance to monitor traded plant material for the presence ... -
Impact of slurry fertilization on nutrient leaching and on the abundance of antibiotic resistance genes in agricultural soil
(Eesti Maaülikool, 2017)Present thesis studies the impacts of slurry fertilization on nutrient leaching and on the efficiency of using activated carbon (AC) as a measure in its reduction. In addition research assesses the cattle slurry as a source ... -
Emission, gene regulation and function of terpenoids in tomato (Solanum lycopersicum) and yarrow (Achillea millefolium)
(Eesti Maaülikool, 2016)Rising temperature have a profound impact on many natural ecosystems worldwide. During the last 100 years, global temperature has been increased by 0.76◦C per year as a result of increasing concentrations of greenhouse ... -
Cultivar resistance and population studies of late blight pathogen in potato breeding in Estonia
(Eesti Maaülikool, 2016)Potato (Solanum spp.) is the third most important food crop in the world after rice and wheat by FAO in 2014 in terms of human consumption. In the cold temperate climate zone, potato is one of the essential vitamins source ... -
The level and maintenance of genetic diversity in endangered plant populations at the margin of the distribution range
(Eesti Maaülikool, 2016)The main aim of this thesis was to assess the effect of contemporary and historical fluctuations in population size on the patterns of neutral genetic variation in the marginal areas of geographical distribution of three ... -
Exploring the salutogenic properties of the landscape: from garden to forest
(Eesti Maaülikool, 2016)Around the world, there is increasing interest in research showing the impact of the physical environment on people’s health and wellbeing. This work focuses on landscape reading according to chosen theories in healing ... -
Analysis of molecular genetic and life-history traits in Eurasian perch (Perca fluviatilis L.)
(Eesti Maaülikool, 2016)Fishes provide food and livelihood for hundreds of millions of people around the world and currently fish consumption is higher than ever before. As a consequence, the threats of over-exploitation, illegal fishing and fish ... -
Winter mortality of honey bee (Apis mellifera L.) colonies: reducing the impact of different factors
(Eesti Maaülikool, 2016)Poor overwintering leading to the weakining and dying of honey bee colonies is a well known problem in beekeeping. The ectoparasitic mite Varroa destructor has been proved to be the leading cause of large colony losses. ... -
The effect of different farming systems on potato tuber yield and quality
(Eesti Maaülikool, 2015)The world’s population is estimated to exceed over 9 billion people by 2050 (FAO, 2013), thus the demand for high yielding, good quality crops as well as the “challenges for the sustainability of the ecosystems” ... -
Effect of cultivation techniques on grapevine (Vitis sp.) and strawberry (Fragaria x ananassa Duch.) fruit quality
(Eesti Maaülikool, 2016)Cooler regions (including Estonia) are expected to be unsuitable for grapevine cultivation due to a short vegetation period and variability of quality parameters regarding insufficient maturation due to variable climatic ... -
Phenotypic characterisation of potato late blight pathogen Phytophthora infestans in Baltic countries
(Eesti Maaülikool, 2016)Potato late-blight is one of the most destructive diseases of potato (Solanum tuberosum L.) worldwide; it is caused by the oomycete Phytophthora infestans (Mont.) de Bary. The disease is also a serious problem for potato ... -
Prediction models of soil organic carbon and bulk density of arable mineral soils
(Eesti Maaülikool, 2016)Measuring soil properties is often not reasonable and financially possible. Therefore, prediction of soil properties is used more frequently by pedotransfer functions and predictive models. Legacy soil data can be used for ... -
Soil properties affected by cover crops and fertilization in a crop rotation experiment
(Eesti Maaülikool, 2016)The aim of the current study was to investigate based on a five-year crop rotation experiment (field pea, potato, barley under-sown with red clover, red clover, and winter wheat) situated in Tartu, Estonia, the impact of ... -
Responses of respiratory and photorespiratory decarboxylations to internel and external factors in C3 plants
(Eesti Maaülikool, 2015)Simultaneously with CO2 fixation in plant leaves during photosynthesis, respiration processes release part of the fixed CO2 in decarboxylation reactions. There are two different respiration processes – respiration and ... -
Electrical charge of basidiospores of hymenomycetes (Fungi) and its biological significance
(Eesti Maaülikool, 2015)When spores liberate from fruitbodies of chanterelle, penny ban, fly agaric, hedgehog fungus, tinder conk, dry rot fungus or another hymenomycetous fungus, the spores usually carry electrostatic charges. The mean absolute ... -
Sustainable community management in Estonia: reflections on heritage projects on Kihnu Island, in Viljandi County, and in various protected areas
(Eesti Maaülikool, 2015)The PhD thesis of Priit-Kalev Parts entitled “Sustainable community management in Estonia: reflections on heritage projects on Kihnu Island, in Viljandi county, and in various protected areas” examines the problems related ... -
Cultivation of willows (Salix sp.) using residues of the wastewater purification process and biogas production as fertilisers
(Eesti Maaülikool, 2015)This thesis suggests that society’s waste products such as municipal wastewater, sewage sludge and biogas digestate could all be used in willow cultivation providing valuable resources to develop the production of bioenergy ...
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