Template-Type: ReDIF-Article 1.0 Author-Name: O. Ivanek Author-Workplace-Name: Forestry and Game Management Research Institute, Jíloviště-Strnady, Czech Republic Author-Name: Z. Procházková Author-Workplace-Name: Forestry and Game Management Research Institute, Jíloviště-Strnady, Czech Republic Author-Name: K. Matějka Author-Workplace-Name: IDS, Prague, Czech Republic Title: Analysis of the genetic structure of a model Scots pine (Pinus sylvestris) seed orchard for development of management strategies Abstract: Genetic structure, diversity and clonal homogeneity were determined on the basis of the isozyme gene markers in a model Scots pine seed orchard in the north-eastern part of the Czech Republic that originated from natural forest regions NFR 28 and 29 (Jeseníky Mts.) and the 2nd and 3rd forest altitudinal zones (FAZ). Clone and ramet crop variation for the 2009-2011 period was assessed. Comparing the loci measured also in two pine orchards in central Slovakia, a similar proportion of homogeneous clones but considerably lower expected heterozygosity were found out for most of the measured isozyme loci. Heterozygosity of the investigated orchard did not change considerably after the exclusion of alien and wrongly placed ramets. No difference in average cone production between clones originating from different NFR was observed. Verification of the clone identity of seed orchards managed in a certain way can be suggested with the subsequent removal of alien ramets. Keywords: fructification, gene markers, isozymes, Monte-Carlo test, Rao coefficient, Shannon index Journal: Journal of Forest Science Pages: 377-387 Volume: 59 Issue: 10 Year: 2013 DOI: 10.17221/39/2013-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/39/2013-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-201310-0001.txt Handle: RePEc:caa:jnljfs:v:59:y:2013:i:10:id:39-2013-JFS Template-Type: ReDIF-Article 1.0 Author-Name: P. Máchová Author-Workplace-Name: Forestry and Game Management Research Institute, Jíloviště-Strnady, Czech Republic Author-Name: J. Malá Author-Workplace-Name: Forestry and Game Management Research Institute, Jíloviště-Strnady, Czech Republic Author-Name: H. Cvrčková Author-Workplace-Name: Forestry and Game Management Research Institute, Jíloviště-Strnady, Czech Republic Author-Name: J. Dostál Author-Workplace-Name: Forestry and Game Management Research Institute, Jíloviště-Strnady, Czech Republic Author-Name: V. Buriánek Author-Workplace-Name: Forestry and Game Management Research Institute, Jíloviště-Strnady, Czech Republic Title: In vitro reproduction of rare and endemic species of rowan tree Abstract: The preservation and reproduction of gene resources of rare and endemic rowan species were the main aims of this study. Rowan species represent important woody trees from the aspect of forest biodiversity. There are only several endemic rowan species in the Czech Republic which are of hybridogenous origin from the whitebeam (Sorbus aria) range. Most of them have been described only at the end of the 20th century. For these species, the new procedures of vegetative reproduction were developed. In vitro cultures from dormant buds of 57 mature trees were established. The successful induction of organogenesis was achieved in a MS modified medium with 0.2 mg.l-1 of BAP, 0.1 mg.l-1 of IBA, 200 mg.l-1 of glutamine, 2 mg.l-1 of glycine, 200 mg.l-1 of casein hydrolysate, 30 mg.l-1 of sucrose, and 6 mg.l-1 of agar. The pH was adjusted to 5.8. NAA in the concentration of 13.5 mg.l-1 was efficient for the rooting of microcuttings. An efficient protocol for the reproduction of endemic rowan species by means of organogenesis induction in apical meristems of dormant buds is reported. Keywords: Sorbus, micropropagation, organogenesis, preservation of gene sources Journal: Journal of Forest Science Pages: 386-390 Volume: 59 Issue: 10 Year: 2013 DOI: 10.17221/46/2013-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/46/2013-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-201310-0002.txt Handle: RePEc:caa:jnljfs:v:59:y:2013:i:10:id:46-2013-JFS Template-Type: ReDIF-Article 1.0 Author-Name: L. Bílek Author-Workplace-Name: Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czech Republic Author-Name: J. Remeš Author-Workplace-Name: Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czech Republic Author-Name: O. Švec Author-Workplace-Name: Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czech Republic Author-Name: D. Zahradník Author-Workplace-Name: Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czech Republic Title: On the way to continuous cover forest at middle elevations - the question of forest structure and specific site characteristics Abstract: The transformation process of even-aged forest stands to irregular forest stands on waterlogged sites after 20 years effort was analysed. Data from two 1-ha PRP was analysed with special focus on structural (Shannon Evenness Index, Simpson Index and Gini Index) and species (Shannon Evenness Index and Simpson Index) diversity. Different development on study plots confirmed that the highest structural diversity is not often compatible with the concept of species diversity. On PRP 1 high diameter differentiation has led to lower values of species diversity, while on PRP 2 rather moderate diameter differentiation supported higher species diversity in lower DBH classes. The Gini Index was confirmed to be the best indicator for monitoring the diameter differentiation in the course of stand transformation. Keywords: Dauerwald, stand transformation, diversity, production, waterlogged site Journal: Journal of Forest Science Pages: 391-397 Volume: 59 Issue: 10 Year: 2013 DOI: 10.17221/57/2013-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/57/2013-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-201310-0003.txt Handle: RePEc:caa:jnljfs:v:59:y:2013:i:10:id:57-2013-JFS Template-Type: ReDIF-Article 1.0 Author-Name: V. Podrázský Author-Workplace-Name: Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czech Republic Author-Name: R. Čermák Author-Workplace-Name: Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czech Republic Author-Name: D. Zahradník Author-Workplace-Name: Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czech Republic Author-Name: J. Kouba Author-Workplace-Name: Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czech Republic Title: Production of Douglas-Fir in the Czech Republic based on national forest inventory data Abstract: This article summarizes basic estimates of productivity and trend analysis of one of the principal introduced forest tree species in the Czech Republic, i.e. Douglas-fir (Pseudotsuga menziesii [Mirbel] Franco). As a comparison, we also examine grand fir (Abies grandis [D. Don] Lindl), northern red oak (Quercus rubra L. syn. Quercus borealis Michx.) and black locust (Robinia pseudoacacia L). This paper presents estimates of forest land area, standing volume, annual and total increments, distribution of age classes, average ages and site indexes for the period 1979-2010. All data were obtained from the national forest inventory of the Czech Republic. Korf's growth function was used for the assessment of current and mean annual increments (CAI, MAI) of Douglas-fir compared to other tree species. Our results suggest a decline in the annual area afforested by Douglas-fir, as influenced by the State administration management choices, a low rate of an increase in the forest land area, increasing average age of the forests. On the other hand, we observed a dramatic increase in the standing volume as well as high annual increments in volume. Douglas-fir is the most productive major tree species in the Czech Republic and there is a great potential to expand its use throughout the country. Keywords: Douglas-fir, introduced species, time series, age structure, production Journal: Journal of Forest Science Pages: 398-404 Volume: 59 Issue: 10 Year: 2013 DOI: 10.17221/48/2013-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/48/2013-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-201310-0004.txt Handle: RePEc:caa:jnljfs:v:59:y:2013:i:10:id:48-2013-JFS Template-Type: ReDIF-Article 1.0 Author-Name: T. Hlásny Author-Workplace-Name: National Forest Centre - Forest Research Institute Zvolen, Zvolen, Slovak Republic Author-Workplace-Name: Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czech Republic Author-Name: Z. Sitková Author-Workplace-Name: National Forest Centre - Forest Research Institute Zvolen, Zvolen, Slovak Republic Author-Name: I. Barka Author-Workplace-Name: Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czech Republic Title: Regional assessment of forest effect on watershed hydrology: Slovakia as a case study Abstract: Recently, the importance of forest effect on watershed hydrology has been increasingly recognized due to an elevated threat of floods and expected alterations of water regime in watersheds induced by climate change. We assessed the trade-off between natural conditions of 61 basic watersheds in Slovakia and expected water-regulatory capacity of forest in these watersheds. A multi-criteria decision-making scheme was proposed to calculate a coefficient for each watershed indicating the need to regulate its water regime as given by natural conditions, and another coefficient indicating the magnitude of forest water-regulatory capacity given by forest structure and distribution. Factors indicating the forest water-regulatory capacity were extent of forest cover, forest fragmentation and distribution in watersheds relative to the spring area, forest stand density and vertical structure, and tree species composition. The results indicate that the present structure and distribution of forests in Slovakia has potential to moderately regulate the water regime at the scale of basic watersheds. We identified critical watersheds where natural conditions imply the unfavourable water regime and/or the forest water-regulatory capacity is weak. Limits of forest effect on watershed hydrology and caveats for interpreting the presented findings are discussed. Keywords: watershed hydrology, water-regulatory capacity of forest, forest stand structure, forest cover, forest fragmentation Journal: Journal of Forest Science Pages: 405-415 Volume: 59 Issue: 10 Year: 2013 DOI: 10.17221/55/2013-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/55/2013-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-201310-0005.txt Handle: RePEc:caa:jnljfs:v:59:y:2013:i:10:id:55-2013-JFS