Sökning: "self-pollination"

Hittade 5 uppsatser innehållade ordet self-pollination.

  1. 1. Insect pollination of faba beans, Vicia faba : the abundance and foraging behaviour of different pollinators and their effect on crop yield

    Kandidat-uppsats, SLU/Dept. of Ecology

    Författare :Ylva Johansson; [2020]
    Nyckelord :honeybee; Apis mellifera; bumblebees; B. pascuorum; B. hortorum; B. lucorum; B. terrestris; B. ruderatus; B. cryptarum; B. distinguendus; B. lapidarius;

    Sammanfattning : Faba beans, Vicia faba is known as a self-pollinating crop, however significant yield increases have been found in plants visited by honeybees and bumblebees. The bees either make positive visits, entering the flower and transferring pollen between different flowers resulting in cross-pollination, or negative visits, piercing the flower to “steal” nectar or collect nectar from extrafloral nectaries. LÄS MER

  3. 2. Flowering phenology, pollination and seeding interactions in Garden Lupine (Lupinus polyphyllus)

    Kandidat-uppsats, Karlstads universitet

    Författare :Amanda Boström; [2020]
    Nyckelord :pollination; Garden Lupine; bumblebee; Bombus; Lupinus polyphyllus; self-pollination; pollinering; blomsterlupin; humlor; Bombus; Lupinus polyphyllus; självpollinering;

    Sammanfattning : The spreading of the invasive plant Garden Lupine (Lupinus polyphyllus) has become a matter of national importance in Sweden, due to it posing a threat to native plant and pollinator diversity. The effective attraction of bumblebees (Bombus spp. LÄS MER

  4. 3. Effects of phenology and the microclimate on the seed set of Anemone nemorosa

    Master-uppsats, SLU/Dept. of Ecology

    Författare :Laurent Risser; [2016]
    Nyckelord :interaction; plant-pollinator; microclimate; phenology;

    Sammanfattning : Changing climate affects the dispersal and phenology of plants and pollinators. Particularly in the spring, climate warming accelerates the timing of flowering and insect emergence. Temporal mismatch is a fairly well studied biological phenomenon. LÄS MER

  5. 4. Pollination biology of the endemic orchid Vanilla bosseri in Madagascar

    Master-uppsats, Uppsala universitet/Institutionen för biologisk grundutbildning

    Författare :Linda Petersson; [2015]
    Nyckelord :Vanilla; endemic orchid; pollination; pollen thief; breeding system; Madagascar;

    Sammanfattning : The pantropical orchid genus Vanilla has a diverse floral morphology and there is a lack of knowledge about the pollination biology of its species in all geographical areas except the American tropics. The present study investigated the pollination biology of the endemic Vanilla bosseri Allorge in a dry, deciduous forest near Morondava at the west coast in Madagascar. LÄS MER

  7. 5. Investigating the evolutionary consequences of sexual conflict through pollen and pistil traits in several Collinsia heterophylla (Plantaginaceae) populations

    Master-uppsats, Lunds universitet/Examensarbeten i biologi

    Författare :Evan Hersh; [2012]
    Nyckelord :Biology and Life Sciences;

    Sammanfattning : Abstract Sexual selection is considered to be one of the most important processes influencing the evolution and diversification of species. Sexual conflict, a subset of sexual selection theory, describes how opposing interests in the male and female reproductive systems can lead to one sex increasing its fitness at a cost to the other sex. LÄS MER