Journal of Forest Science, 2015 (vol. 61), issue 8
Effect of gibberellic acid on germination capacity and emergence rate of Sycamore maple (Acer pseudoplatanus L.) seedsOriginal Paper
J. Stejskalová, I. Kupka, S. Miltner
J. For. Sci., 2015, 61(8):325-331 | DOI: 10.17221/22/2015-JFS 
Seedlots of sycamore maple (Acer pseudoplatanus L.) originating from three different provenance regions were collected in autumn 2012. The seed quality, namely vitality and germination rate, was assessed according to Czech conventions. There were four replications within each seedlot, i.e. twelve treatments altogether for each experimental variant. The effect of gibberellic acid on germination and vitality was studied using three treatments including a control for germination capacity and three treatments including a control for emergence rate. The data shows that the gibberellic acid did not substitute for the stratification procedure as...
The occurrence of early-arriving saproxylic beetles on Scots pine logging residues generated by thinningOriginal Paper
J. Foit
J. For. Sci., 2015, 61(8):332-338 | DOI: 10.17221/45/2015-JFS
The occurrences of early-arriving saproxylic beetles were examined on 1,200 fragments of Scots pine (Pinus sylvestris L.) logging residues generated by thinning in a single stand in the Drahanská Highlands in the Czech Republic. The felling was carried out on four dates in 2006 (February, May, August, November). The occurrence of early-arriving saproxylic beetles was investigated by peeling off the bark of logging residues during the first six months of the vegetative period following the felling. Beetle occurrence was significantly affected by felling date, logging residue type (trunk fragment, or branch thinner or thicker than 1 cm) and...
Energy yield of logging residues of the south-eastern region of the Czech RepublicOriginal Paper
T. Badal, J. Kšica, V. Vala, D. Šafařík
J. For. Sci., 2015, 61(8):339-344 | DOI: 10.17221/15/2015-JFS
The study analyses data obtained from the production of energy chips from logging residues. Geographically, the data come from the south-eastern portion of the Czech Republic. 6,671 t of energy chips were analysed by means of samples, their total energy content being 63.92 TJ. Based on the results of laboratory analyses of samples of wood chips with energy contents, ratio (reference) variables were derived and can be used as input (basic) data for the modelling of the energy potential of logging residues of the territory.
Use of nuclear microsatellite loci for evaluating genetic diversity among selected populations of Abies alba Mill. in the Czech RepublicOriginal Paper
H. Cvrčková, P. Máchová, J. Malá
J. For. Sci., 2015, 61(8):345-351 | DOI: 10.17221/25/2015-JFS
The simple sequence repeats (SSR) method of DNA analysis was used to determine genetic diversity within and among silver fir (Abies alba Mill.) populations. Total genomic DNA was extracted from 250 Abies alba adult individuals collected from 8 important populations growing in different parts of the Czech Republic. Samples were screened using eight selected polymorphic nuclear microsatellite markers. PCR products were separated by capillary electrophoresis. Identified genetic loci were verified as reliable and polymorphic and were used for comparative genetic analyses of silver fir populations. The genotypic data from the adult trees...
The effect of some climate factors on dimensional stability in Pinus brutiaOriginal Paper
I. Bektaş
J. For. Sci., 2015, 61(8):352-358 | DOI: 10.17221/33/2015-JFS
This study investigated the effect of climate factors on dimensional stability in Pinus brutia Ten. wood in its natural range in the Mediterranean region of Turkey. For this purpose, test trees at approximately the same age and altitude were taken from five different climate regions of the Mediterranean. The results of the statistical analyses indicated that climatological factors had an important impact on dimensional stability in Calabrian pine wood. While there is a significant relation between the direction in which test samples from the test tree were obtained and the amounts of radial and tangential shrinkages, there is a non-significant...
Forest certification as a tool to support sustainable development in forest managementOriginal Paper
A. Mikulková, M. Hájek, M. Štěpánková, M. Ševčík
J. For. Sci., 2015, 61(8):359-368 | DOI: 10.17221/16/2015-JFS
The concept of sustainable development is currently known and used in many contexts across a wide range of industries. Nevertheless, specific approaches to achieving the strategy of sustainability can be found in the individual sectors. The beginnings of sustainable management in forestry go back to the mid-18th century. Currently, certification systems contribute to sustainable behaviour in forests. In the Czech Republic, this concerns in particular PEFC and FSC certification systems. Both these certification systems include two different processes, forest management certification and chain of custody certification, i.e. including the wood-processing...