Essays about: "Ash Fraxinus excelsior"

Showing result 1 - 5 of 14 essays containing the words Ash Fraxinus excelsior.

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

    University essay from SLU/Southern Swedish Forest Research Centre

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

    Abstract : 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. READ MORE

  2. 2. Vegetationsförändringar i två öländska lundar under 30 år

    University essay from SLU/Southern Swedish Forest Research Centre

    Author : Ida Hansson; [2018]
    Keywords : Alm-askskog; Fältskikt; Ulmus glabra; Markvegetation; Fraxinus excelsior; Almsjuka; Askskottsjuka; Ulmus minor; Vegetationsförändringar;

    Abstract : Många skyddade skogar i Europa har förändrats sedan den tidigare markanvändningen upphört. Skogar som förr var betade eller användes till slåtter har växt igen och blivit slutna skogar. READ MORE

  3. 3. Development of expression markers for reduced susceptibility in Fraxinus excelsior

    University essay from SLU/Dept. of Forest Mycology and Plant Pathology

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

    Abstract : 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. READ MORE

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

    University essay from SLU/Southern Swedish Forest Research Centre

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

    Abstract : 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. READ MORE

  5. 5. The impact of ash dieback on ash regeneration in the forest reserve Dalby Söderskog

    University essay from SLU/Southern Swedish Forest Research Centre

    Author : Maja Dietrich; [2016]
    Keywords : ash dieback; ash regeneration; Dalby Söderskog; ecology of ash; European ash; Hymenoscyphus pseudoalbidus;

    Abstract : Ash dieback is affecting European ash (Fraxinus excelsior) throughout its distribution area, threatening economical forests and associated biodiversity. Studying regeneration is important to foresee the future development of ash. READ MORE