Phenotypic variability of Fraxinus excelsior L. and Fraxinus angustifolia Vahl under the ash dieback disease in the Czech Republic

Abstract

Papić S., Buriánek V., Longauer R., Kudláček T., Rozsypálek J. (2018) The study was carried out in the experiment with 16 provenances of common ash (Fraxinus excelsior Linnaeus) and 2 provenances of narrow-leaved ash (Fraxinus angustifolia Vahl) at a series of 5 parallel trial plots established in a gradient from lowland riverine to upland ravine sites. The role of the site, ash species and the provenance of common ash proved to have significant effects on the intensity of ash dieback (ADB) associated with the infection by Hymenoscyphus fraxineus (T. Kowalski) Baral, Queloz & Hosoya at the age of 20 years. Narrow-leaved ash was healthier, surviving and growing better than common ash on the trials situated inside as well as beyond its natural range. The ADB intensity was lower in the medium altitude and more easterly located trial plots with a more continental climate. The provenance of forest reproductive material proved to have a significant effect on the ADB damage and survival rate as well as the growth of ash across the trial plots of the experiment.

Effect of cadmium (Cd) and lead (Pb) soil contamination on the development of Hymenoscyphus fraxineus on Fraxinus excelsior and F. angustifolia seedlings

“…Thus, the third null hy-pothesis that there is no differences in the development of H. fraxineus between F. excelsior and F. angustifolia grown on soil contaminated with cadmium or lead was accepted. On uncontaminated soil, the development of H. fraxineus was consistent with most previous studies reporting a high sensitivity to dieback of both ash species (Kowalski & Holdenrieder 2009, Hauptman et al 2016, Pastirčáková et al 2020, Vemić et al 2021, with F. angustifolia being slightly less sensitive (Schwanda & Kirisits 2016, Diminić et al 2017, Nielsen et al 2017, Papić et al 2018, Enderle et al 2019.…”

Common ash (Fraxinus excelsior L.) in Ukrainian forests and its successful natural regeneration

“…The significant reduction in the area of ash forests over the last 20-30 years has become a matter of great concern for the European forestry sector as a whole. Many researchers (Kowalski & Holdenrieder, 2009;Baral et al, 2014;Skovsgaard et al, 2017;Papić et al, 2018) consider the presence of the pathogenic fungus Hymenoscyphus pseudoalbidus (anamorph Chalara fraxinea) in European forests as the main cause of this phenomenon and its corresponding consequences. The fungus was first recorded in Poland in the late 20th century (the 1990s) and has spread over the continent (Gross et al, 2014).…”