• Effect of host plants and land use on cabbage seed weevil infestation and associated parasitoids 

  Kovács, Gabriella (Eesti Maaülikool, 2018)

  The need for more sustainable pest management strategies has been increasing in light of the harmful effects that insecticides have on non-target organisms and recent regulation changes. This study aimed to provide a basis ...

• Role of historical slash and burn cultivation in the development of cultural landscapes and forest vegetation in south Estonia 

  Tomson, Pille (Eesti Maaülikool, 2018)

  The objective of this PhD thesis was to estimate the effects of historical rotational slash and burn cultivation on the formation of southern Estonian cultural landscapes and forest vegetation. Slash and burn cultivation ...

• Differential regulation of release of leaf stress volatiles: from terpene synthase gene expression to emission responses under heat, ozone and wounding stresses 

  Kanagendran, Arooran (Eesti Maaülikool, 2018)

  Plants release a wide array of biogenic volatile organic compounds both constitutively and upon stress. BVOCs play key roles biologically and ecologically. In addition, the emission responses of stress volatiles act as one ...

• Induction of volatile organic compound emissions from leaves upon ozone and methyl jasmonate (MeJa) treatments 

  Li, Shuai (Eesti Maaülikool, 2018)

  Plants biosynthesized a wide variety of volatile organic compound (BVOCs) consisting of volatile isoprenoids, LOX products, saturated aldehydes, benzenoids, and several hydrocarbon volatiles. BVOCs have a considerable ...

• The effect of natural variability on the assessment of ecological status of shallow lakes 

  Tuvikene, Lea (Eesti Maaülikool, 2018)

  The dissertation contributes to the improvement of large lake monitoring, demonstrating that besides following the class boundaries of ecological status established by law, reliable status estimates of such lakes require ...

• The sublethal effects of neurotoxic insecticides on the basic behaviours of agriculturally important carabid beetles 

  Tooming, Ene (Eesti Maaülikool, 2017)

  Sublethal effects of pesticides on behavioural endpoints are poorly investigated in nontargeted beneficial arthropod predators important as nartural enemies of many agricultural pests. In this ecotoxicological study, ...

• Effects of natural and anthropogenic pressures and disturbances on the macrophytes of Lake Peipsi 

  Palmik, Kadi (Eesti Maaülikool, 2017)

  Macrophytes play an important role in aquatic ecosystems. Their temporal and spatial distribution is governed by various natural and anthropogenic pressures and disturbances. The aim of the thesis is to study the effect ...

• Change in Estonian natural resource use: the case of wild food plants 

  Kalle, Raivo (Eesti Maaülikool, 2017)

  The use of wild food plants is one example of the importance of biocultural diversity. Wild food plants are, in the context of this work, those plants that grow without the direct intentional help (cultivation or management) ...

• High-Frequency Measurements - A New Approach in Limnology 

  Meinson, Pille (Eesti Maaülikool, 2017)

  Until recently, time consuming and costly manual measurements have been predominating in lake research and monitoring. Usually, this kind of measurements do not provide sufficient temporal and spatial resolution if any. ...

• Assessment of Verticillium dahliae Kleb. And Soil Fungal Communities Associated with Strawberry Fields 

  Mirmajlessi, Seyed Mahyar (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 

  Nutt, Nele (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 

  Just, Kadri (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 

  Tampere, Mailiis (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) 

  Pazouki, Leila (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 

  Tähtjärv, Terje (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 

  Ilves, Aigi (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 

  Maikov, Kadri (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.) 

  Pukk, Lilian (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 

  Toomemaa, Kalle (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 

  Tein, Berit (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” ...

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