Sökning: "LT50"

Hittade 3 uppsatser innehållade ordet LT50.

  1. 1. Kan rovkvalstren överleva svensk vinter? : övervintringsstudier på Stratiolaelaps scimitus och Neoseiulus cucumeris

    Kandidat-uppsats, SLU/Dept. of Ecology

    Författare :Clara Kjellström; [2019]
    Nyckelord :Stratiolaelaps scimitus; Neoseiulus cucumeris; köldhärdighet;

    Sammanfattning : Predatory mites have been used as biological control agents in Sweden since the 1970’s, primarily in greenhouse cultivation. There is a risk that the mites establish in the environment. Therefore, a risk analysis needs to be performed. In Sweden, the winter acts as an establishment barrier. LÄS MER

  3. 2. Frost hardiness of grapevine cultivars as affected by ground cover under Scandinavian conditions

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

    Författare :Magdalena Jansson; [2013]
    Nyckelord :frost hardiness; grapevine; ground cover; Scandinavia;

    Sammanfattning : Cultivation of grapevine is novel under Scandinavian conditions. We studied the impact of ground cover on frost hardiness of grapevine cultivars in Northwestern Scania in a two-factorial trial with four cultivars Solaris, Pinot Gris, Siegerrebe, Ortega and three kinds of ground cover (open soil, plastic cover and gravel). LÄS MER

  4. 3. Frost hardiness of some New Zealand shrubs

    L3-uppsats, SLU/Horticulture

    Författare :Sture Bengtsson; [2007]
    Nyckelord :frost; frost hardiness; frost resistance; freezing tolerance; freezing resistance; winter hardiness; cold hardiness; freeze test; frost injury; frost injury assessment; cold acclimation; new zealand shrubs; new zealand flora; plant stress physiology; electrolyte leakage; index of injury; LT50; visual injury assessment; olearia; coprosma; podocarpus; buxus; taxus;

    Sammanfattning : Frost resistances, LT50, were decided for stems and leaves of several New Zealand woody plants belonging to Olearia (Asteraceae), Coprosma (Rubiaceae) and Podocarpus (Podocarpaceae). That was part of the aims, which included trying to find species potentially winter hardy in southern coastal Sweden and study methods for frost hardiness assessment. LÄS MER