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Visar resultat 1 - 5 av 27 uppsatser som matchar ovanstående sökkriterier.

  1. 1. Födovalspreferenser hos en arktisk specialist : vad föredrar Gynaephora groenlandica (Lepidoptera:Erebidae) att äta på Wrangelön?

    Kandidat-uppsats, SLU/Dept. of Forest Ecology and Management

    Författare :Beatrice Elfvenfjärd; Erika Åmansson; [2022]
    Nyckelord :Gynaephora groenlandica; arktisk ullbjörnslarv; födopreferenser; arktisk tundra; arktisk specialist; växtegenskaper;

    Sammanfattning : The Arctic tundra has many unexplored areas. Due to the harsh climate and the difficult accessibility, there is a lack of knowledge about the different species that live under these circumstances. Herbivores in this environment have a large effect on the plant community, one of these is the moth butterfly larva Gynaephora groenlandica. LÄS MER

  3. 2. Effect of Touch on Cotton and Maize : influence on plant morphology and feeding preference in Spodoptera littoralis

    Kandidat-uppsats, SLU/Dept. of Plant Protection Biology

    Författare :Anna Magnusson; [2022]
    Nyckelord :Mechanical stimuli; cotton; maize; thigmomorphogenesis; Spodoptera littoralis; induced defence; plant-plant interaction;

    Sammanfattning : Plants are constantly exposed to touch and mechanical stimuli in natural environments, from rain, wind, animals and plant neighbours. However, current knowledge and understanding of how touch physiologically affects plants are limited. LÄS MER

  4. 3. Interactions between plant pathogens and their implications for crop protection

    Kandidat-uppsats, SLU/Dept. of Forest Mycology and Plant Pathology

    Författare :Ayano Tanaka; [2021]
    Nyckelord :disease complex; nteraction; antagonism; synergism; Fusarium spp;

    Sammanfattning : One plant may often be infected by more than one pathogen species. It is assumed that species which exploit the same resource have the potential to affect each other. Plant diseases where more than one pathogen is involved in the development of infection are usually termed as ¨disease complex¨. LÄS MER

  5. 4. Reindeer induced changes in vegetation composition and plant traits on a tundra-forest border

    Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Författare :Femke Pijcke; [2019]
    Nyckelord :physical geography; ecosystem analysis; plant functional traits; nutrient allocation; grazing; reindeer; Earth and Environmental Sciences;

    Sammanfattning : Reindeer (Rangifer tarandus) are the most common large herbivores in the arctic. With a habitat spreading over the entire circumpolar region, they can have a substantial effect on plant species composition and ecosystem processes and functions. LÄS MER

  7. 5. Induction of plant defence and secretion of volatile compounds by Colletotrichum acutatum in leaf infection assay of woodland strawberry

    Kandidat-uppsats, SLU/Dept. of Biosystems and Technology (from 130101)

    Författare :Joubin Haji Mirza Ali; [2018]
    Nyckelord :Plant Defence; PAMP-triggered immunity; Colletotrichum acutatum; Anthracnose Disease; Pathogen; Fragaria vesca; Woodland Strawberry; Leaf Infection; Volatile Secretion; β-caryophyllene;

    Sammanfattning : Consumers demand healthy food with less residues of pesticides, in addition to the global awareness of the negative impact such chemicals have caused to the environment during the last decades. Farmers and other agricultural participants are far away from completely end up the usage of pesticides but currently used practice could stepwise be improved in pest management. LÄS MER