Sökning: "Hymenoscyphus fraxinus"

Visar resultat 1 - 5 av 9 uppsatser innehållade orden Hymenoscyphus fraxinus.

  1. 1. Askens framtid : konsekvenser och hantering av askskottsjukan ur ett ekologiskt perspektiv

    Kandidat-uppsats, SLU/Dept. of Landscape Architecture, Planning and Management (from 130101)

    Författare :Linda Tångby; Veronika Johansson; [2022]
    Nyckelord :Fraxinus excelsior; Hymenoscyphus fraxineus; svampsjukdom; biologisk mångfald; värdväxt; handel; invasivitet; resistens; skadegörare på ask; växtskydd; epidemi;

    Sammanfattning : Asken (Fraxinus excelsior) är ett av våra ädellövsslag och dess existens hotas av den vindburna svampsjukdomen askskottsjukan. Sjukdomen upptäcktes först i Polen i början av 90-talet och spreds under en 20-årsperiod till de flesta länder i Europa. LÄS MER

  3. 2. Effects of ash dieback and Dutch elm disease on forest structure in Dalby Söderskog 2012-2020

    Master-uppsats, SLU/Southern Swedish Forest Research Centre

    Författare :Janis Ruks; [2020]
    Nyckelord :Sweden; Ophiostoma spp.; Hymenoscyphus fraxineus; Phytophthora spp.; forest succession; forest structure;

    Sammanfattning : Dalby Söderskog is a national park situated in southern Sweden. The forest is dominated by European ash (Fraxinus excelsior L.), wych elm (Ulmus glabra Huds.), pedunculate oak (Quercus robur L. LÄS MER

  4. 3. Investigation of constitutive phloem phenolics in European ash (Fraxinus excelsior) with different phenotypic susceptibility to ash dieback

    Master-uppsats, SLU/Southern Swedish Forest Research Centre

    Författare :Hjalmar Holm; [2019]
    Nyckelord :ash; Fraxinus excelsior; dieback; Hymenoscyphus fraxineus; phenolics; secondary metabolites;

    Sammanfattning : European Ash (Fraxinus excelsior) is an important species for biodiversity through-out Europe. The species is critically threatened due to an alien invasive fungus, Hymenoscyphus fraxineus. Some individual F. excelsior trees however show better resistance to H. LÄS MER

  5. 4. Development of expression markers for reduced susceptibility in Fraxinus excelsior

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

    Författare :Matilda Stein Åslund; [2018]
    Nyckelord :Fraxinus excelsior; European ash; Common ash; Molecular markers; Expression markers; Ash dieback disease; Hymenoschyphus fraxineus;

    Sammanfattning : Common ash (Fraxinus excelsior) extends throughout temperate Europe, and in southern and central Sweden it is one of the most common broad-leaved deciduous trees. It is economically valuable thanks to its elastic, hard and pressure-resistant wood, and pollarded ash trees provide a cultural heritage in many European landscapes. LÄS MER

  7. 5. Performance of susceptible and tolerant juvenile Fraxinus excelsior infected by Hymenoscyphus fraxineus, the invasive pathogen causing ash dieback

    Master-uppsats, SLU/Southern Swedish Forest Research Centre

    Författare :Axelina Jonsson; [2017]
    Nyckelord :ash dieback; Fraxinus excelsior; Hymenoscyphus fraxineus; disease tolerance; heritability;

    Sammanfattning : European ash (Fraxinus excelsior), a tree species with both economic and ecological importance, has experienced a steady population decline in Europe since the early 1990’s due to ash dieback, caused by the pathogen Hymenoscyphus fraxineus. In 2001, the first observations of ash dieback were made in Sweden and by 2010, ash had become a red-listed species. LÄS MER