1721 research outputs found
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Comparative indicators of genetic variability and bark beetle infestation intensity in populations of norway spruce (Picea abies (L.) Karst.) in Bosnia and Herzegovina
This study sets out comparative indicators of Norway spruce Picea abies (L.) Karst. populations in Bosnia and Herzegovina,
based on an evaluation of the attack power of bark beetles Ips typographus L. and Pityogenes chalcographus
L. and the decline of spruce within the populations sampled for genetic analysis. Twelve natural forest stands
and one plantation were analyzed. The average numbers of desiccated Norway spruces per stand and isoenzyme
gene markers were used for comparison purposes. The results indicate that the Norway spruce population from Mt
Vlašić deviates markedly from the other sampled populations, both in genetic structure and in the recorded numbers
of insects, as well as in the number of desiccated trees. These results suggest the importance of using only indigenous
Norway spruce reproductive material in artificial forest regeneration to ensure its higher adaptability potential. It
is also necessary to develop a dynamic management system for Norway spruce in Bosnia and Herzegovina, which
will ensure the systemic stability of forest structures. Further development of the systematic monitoring system of
Norway spruce bark beetles, early detection, and the introduction of effective integral protective measures are badly
needed
Second level analysis on extreme events ewindthrow Jelovica and Črnivec, fire Šumka, Slovenia
Development of biomass trade and logistics centres for sustainable mobilisation of local wood biomass resources : interim technical implementation report (IR) : period covered from 01/05/11 to 31/10/12
Regional reports on extreme abiotic/biotic occurrences and extreme fires : Slovenia : [MANFRED - Management strategies to adapt Alpine Space forests to climate change risk]
PROFORBIOMED: promotion of residual forestry biomass in the Mediterranean basin eprogress report 3: submited version: period from 2012-03-01 to 2012-08-31
Implications for the use of forest reproductive material of common ash (Fraxinus excelsior L .) in Slovenia based on the analysis of nuclear microsatellites
Assumption that forest reproductive material is better adapted to local conditions is the basis of current forest policy that promotes the use of local material. Genetic diversity and structure of two approved seed stands and three non-approved stands of Fraxinus excelsior L. were analysed with nuclear microsatellites to get genetically based support for the use of its reproductive material in Slovenia. Genetic diversity was high (HE = 0.80) and differentiation between populations measured as FST (FST = 0.018) low to nonexistent when measured with genetic distances. Calculated allelic indices for seed stands were the same or a bit above the Slovenian average with two exceptions. Based on the analysis of five microsatellite loci, no restrictions for transferring forest reproductive material within the studied range can be presented. However, collection of forest reproductive material from seed stand Rodik should follow good seed collection practices to ensure high genetic diversity of reproductive material