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Type of publication: Knygos dalis / Part of book (Y)
Field of Science: Miškotyra / Forestry (A004)
Author(s): Pliūra, Alfas;Bakys, Remigijus;Suchockas, Vytautas;Marčiulynienė, Diana;Gustienė, Alma;Verbyla, Vidmantas;Lygis, Vaidotas
Title: Ash dieback in Lithuania: disease history, research on impact and genetic variation in disease resistance, tree breeding and options for forest management
Is part of: Dieback of European Ash (Fraxinus spp.): Consequences and Guidelines for Sustainable Management. Uppsala : Swedish University of Agricultural Sciences, 2017
Extent: p. 150-165
Date: 2017
Keywords: Common ash (Fraxinus excelsior);Stand decline;Genetic variation;Hymenoscyphus fraxineus (Chalara fraxinea);Forest regeneration;Health (sanitary) condition;Tree breeding
ISBN: 9789157686961
Abstract: In the presented review we aimed to summarize the existing knowledge on ash dieback and possible options of its control (forest management and tree breeding) accumulated in Lithuania over the last 20 years of the ongoing epidemic. Due to this devastating disease Lithuania has lost more than a half of its forest stands where Fraxinus excelsior was a dominant tree species, and health condition of the remaining stands is still continuously det eriorating. According to data collected from permanent forest monitoring plots, about 9 % of F. excelsior trees die out every year. Several research projects have been dedicated to investigate reasons and consequences of the current ash dieback phenomenon; also, several tree breeding projects targeted to detect and breed disease - resistant F. excelsior genotypes, families and populations have been launched. The review presents most important results of the implemented research projects and most important findings from Lithuanian F. excelsior progeny and clonal trials which revealed substantial genetic variation and heritability of susceptibility /resistance traits and indicated a good potential of selection and breeding of dieback - resistant ash propagation material. In addition, we briefly present studies on communities of xylotrophic fungi residing in declining ash trees, and genetic diversity, population structure and virulence of H. fraxineus isolates of Lithuanian origin. Finally, we present a summary of researcher’s recommendations prepared for Lithuanian forest owners and managers for management of dieback - affected ash stands and for selection of F. excelsior genotypes least susceptible to H. fraxineus and their further use for establishment of resistant seed orchards and further tree breeding for resistance
Affiliation(s): Gamtos tyrimų centro Botanikos institutas
Lietuvos agrarinių ir miškų mokslų centro Miškų institutas
Lietuvos agrarinių ir miškų mokslų centro filialas Miškų institutas
Valstybinė miškų tarnyba
Vytauto Didžiojo universitetas
Žemės ūkio akademija
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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