• Pelagic calcite precipitation in lakes: from a global to a local perspective on its drivers and implications 

  Khan, Hares (Eesti Maaülikool, 2021)

  Inland waters are relevant components of the global carbon cycle acting as active sites for biogeochemical processes. Lakes and reservoirs store and emit carbon in large quantities, comparable in magnitude to other major ...

• Hydrometeorological and climatic control over lake phytoplankton : the importance of time scales 

  Janatian, Nasime (Eesti Maaülikool, 2021)

  Phytoplankton reflects changes in the environment and plays a vital role in biogeochemical cycles and the climate system. The thesis attempts to link the phytoplankton dynamics with the timing, intensity, and duration of ...

• Pathogenic and arbuscular mycorrhizal fungi in potato fields in Estonia 

  Loit, Kaire (Eesti Maaülikool, 2021)

  Soil fungi have fundamental ecological roles as decomposers, mutualists, and pathogens of plants. Roots of agricultural plants are hosts for various microorganisms. These include many harmful, often soilborne, pathogens, ...

• The effect of cover crops on biomass and nitrogen accumulation and on crop yield 

  Toom, Merili (Eesti Maaülikool, 2021)

  The aims of the thesis were to evaluate the biomass and N accumulation of winter cover crop species (winter rye, winter turnip rape, forage radish, berseem clover and hairy vetch), winter hardiness of hairy vetch, the ...

• Influence of cultivation technologies on Fusarium spp. occurrence and production of mycotoxins in cereals 

  Karron, Elina (Eesti Maaülikool, 2021)

  Microbiological and toxicological purity are important one indicators of the quality of cereals. Albeit the content of fusariosis and mycotoxins in the food cereals is not permitted, the feed grain may contain 0.1% Fusarium ...

• Coastal meadows : maintenance, restoration and recovery 

  Kose, Marika (Eesti Maaülikool, 2021)

  This thesis is a synthesis of 20 years of research into the restoration and recovery of Estonian coastal meadows. The restoration of semi-natural grasslands in Estonia is a new nature conservation activity with only 20 ...

• Impact of climate change and other ecological factors on selected fish populations and fishery in Estonian large lakes 

  Öğlü, Burak (Eesti Maaülikool, 2021)

  Human activities and climate change have become the most consequential threats to freshwater ecosystems and their inhabitants, especially fish. The response of the fish population to their environment is not always ...

• Maturity parameters of grapevine (Vitis sp) yield 

  Maante-Kuljus, Mariana (Eesti Maaülikool, 2021)

  The biochemical composition of table and wine grapes is affected by the cultivar properties, vintage and viticultural practices. Most of the research has been done with different grapevine (Vitis vinifera) cultivars. There ...

• Examining thiacloprid, essential oils and double-stranded RNA for potential use in biosafe management of pollen beetle 

  Willow, Jonathan (Eesti Maaülikool, 2021)

  Throughout Europe, one of the most severely damaging threats to oilseed rape (Brassica napus) cultivation is the pollen beetle Brassicogethes aeneus; and routine use of pyrethroid insecticides has led to resistance development ...

• Phytoplankton as ecological quality indicator of lakes 

  Maileht, Kairi (Eesti Maaülikool, 2021)

  According to Water Framework Directive (WFD), phytoplankton abundance, composition and bloom metrics should be used in lake ecological quality assessment. Phytoplankton is highly sensitive to environmental changes and can ...

• Diversity of potato late blight pathogen Phytophthora infestans in the Baltic populations 

  Kiiker, Riinu (Eesti Maaülikool, 2020)

  Late blight, caused by the oomycete Phytophthora infestans (Mont. de Bary 1876), is one of the most economically damaging plant diseases and certainly the most devastating disease in potato. The current research results ...

• Factors affecting apple juice quality and mycotoxin patulin formation 

  Heinmaa, Lagle (Eesti Maaülikool, 2020)

  The aim was to find out the effect of cultivation system (organic- and conventional-), apple preprocessing storage temperature (+3°C and +9°C) and juice pressing technology (rack-and-frame press, water press and belt ...

• Landscape metrics and cultural ecosystem services: an integrative resource-driven mapping approach for landscape harmony 

  Karasov, Oleksandr (Eesti Maaülikool, 2020)

  The overall idea of PhD thesis was to explain with objective evidence and using mapping techniques, why and how people value particular visual landscapes. Mainstream mapping research usually refers to uniqueness, diversity ...

• A tiered framework for mapping and assessing ecosystem services from semi-natural grasslands: expert-based assessments, proxy indicators and uav surveys 

  Villoslada Peciña, Miguel (Eesti Maaülikool, 2020)

  Semi-natural grasslands provide a wide range of goods and services, including plant species diversity, carbon storage and sequestration, biomass production for grazing animals, flood reduction, habitat for migratory and ...

• When peace and quiet is not enough: Examining the challenges communities face in Estonian and Latvian rural landscapes 

  Storie, Joanna Tamar (Eesti Maaülikool, 2020)

  Estonian and Latvian rural landscapes are not static; they evolve under environmental influences, both natural and socioeconomic. The landscapes have undergone rapid transformation from the collectivised Soviet period to ...

• Mesophyll conductance in gymnosperms 

  Veromann-Jürgenson, Linda-Liisa (Eesti Maaülikool, 2020)

  Mesophyll conductance is the CO2 diffusion efficiency through the leaf from the substomatal cavity to chloroplasts located in plant cells. It is an important step determining photosynthetic efficiency next to photosynthetic ...

• Impact of farming system, pre-crop and weather conditions to yield and quality of spring wheat 

  Ingver, Anne (Eesti Maaülikool, 2020)

  Present thesis studies the impact of farming system, pre-crop and weather conditions to yield and quality of spring wheat. The main objectives were: (i) to determine the effect of six leguminous pre-crop species (perennial ...

• The effects of heat stress severity on photosynthesis and volatile organic compound emissions in black mustard and tobacco 

  Kask, Kaia (Eesti Maaülikool, 2020)

  Plants are susceptible to various abiotic stress factors during their growth, such as low and high temperatures, drought, and excess water and light. At this time, rising temperature is one of the most topical issues as ...

• Breeding and migration ecology of Common Crane (Grus grus L.) 

  Ojaste, Ivar (Eesti Maaülikool, 2019)

  The objectives of this thesis were to analyse the breeding population trends and distribution of the Common Cranes in Estonia and the availability of potential breeding habitat (I, IV), to describe nesting habitats in ...

• Effects of synthetic and biological pesticide exposure on honey bees and bumble bees 

  Raimets, Risto (Eesti Maaülikool, 2019)

  The current thesis investigated whether different pesticide residues, and at which concentrations, can be found in different honey bee (Apis mellifera L.) colony components collected from different land use types (I, ...

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