Template-Type: ReDIF-Article 1.0 Author-Name: Josef Gallo Author-Name: Zdeněk Vacek Author-Workplace-Name: Department of Silviculture, Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czech Republic Author-Name: Martin Baláš Author-Workplace-Name: Department of Silviculture, Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czech Republic Author-Name: Stanislav Vacek Author-Workplace-Name: Department of Silviculture, Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czech Republic Title: Germinative capacity and energy of critically endangered Ojców birch (Betula oycoviensis Besser) in the Czech Republic Abstract: Ojców birch (Betula oycoviensis Besser) is a rare and critically endangered taxon of the genus Betula. Its distribution is limited to few countries in Europe. In the Czech Republic, this taxon, characterized by typical shrubby habitus, has been found in fewer than 70 tree individuals, prevailingly in the studied locality Volyně, West Bohemia. This study was focused on the germinative capacity and germinative energy of this taxon, as it is an important indicator of possible regeneration of the trees in nature and for conservation. Non-stratified seeds (2 200 pcs) and stratified ones (2 200 pcs) were compared to each other and in relation to dendrometric tree parameters. The results showed no significant (P > 0.1) differences between stratification variants in total germination (higher by 0.8% in stratified), though stratification improved germinative energy. Germination was in 1st week higher by 6.0% in stratified variant, respectively marginally (P < 0.1) higher in 2nd week in non-stratified variant. However, both germinative capacity and germinative energy were significantly (P < 0.01) variable between individual trees. The germinative capacity was significantly (P < 0.05) positively correlated with tree defoliation. Tiny seeds and triploid trees exhibited very low and zero germinative capacity and energy, respectively. Totally, seeds exhibited sufficient germinative capacity and germinative energy of 23.1% (0.0-62.5%). This suggests that the trees can be potentially used for this type of Ojców birch regeneration i.e. generatively from seeds, although rather in controlled artificial conditions. Keywords: germination, stratification, silviculture, Ore Mts., Central Europe Journal: Journal of Forest Science Pages: 227-235 Volume: 66 Issue: 6 Year: 2020 DOI: 10.17221/47/2020-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/47/2020-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-202006-0001.txt Handle: RePEc:caa:jnljfs:v:66:y:2020:i:6:id:47-2020-JFS Template-Type: ReDIF-Article 1.0 Author-Name: Shuming Ju Author-Workplace-Name: Xuzhou Institute of Technology, Xuzhou Jiangsu, China Author-Workplace-Name: Jiangsu Laboratory of Pollution Control and Resource Reuse, Xuzhou Jiangsu, China Author-Name: Delan Xu Author-Workplace-Name: Xuzhou Institute of Technology, Xuzhou Jiangsu, China Author-Name: Cuiying Zhang Author-Workplace-Name: Xuzhou Institute of Technology, Xuzhou Jiangsu, China Author-Name: Jiaqi Lu Author-Workplace-Name: Xuzhou Institute of Technology, Xuzhou Jiangsu, China Author-Name: Xueqing Jiang Author-Workplace-Name: Xuzhou Institute of Technology, Xuzhou Jiangsu, China Author-Name: Lingzhen Ji Author-Workplace-Name: Xuzhou Institute of Technology, Xuzhou Jiangsu, China Title: Induction of tolerance by chlorocholine chloride in Sequoia sempervirens seedlings under natural cooling and drought Abstract: Two-years-old Sequoia sempervirens seedlings were foliar sprayed once and twice with chlorocholine chloride (CCC) at 0, 100, 500, 1 000, 1 500 and 2 000 mg.l-1. The purpose was to investigate the effect of CCC on the growth and photosynthetic activity of S. sempervirens seedlings under natural cooling and drought in autumn and winter. The findings showed that the increments of plant height and crown diameter were significantly decreased with the increase of chlorocholine chloride concentration, and the increment of root collar diameter, net photosynthetic rate, actual photochemical quantum yield and photosynthetic electron transport rate showed the trend of increasing first and then decreasing, and reached the maximum at concentrations of 1 000~2 000 mg.l-1. There was not a significant difference between two applications and single application. It suggests that 1 000~2 000 mg.l-1 chlorocholine chloride can protect the photosynthetic activity of S. sempervirens seedlings and alleviate the stress induced by low temperatures and drought in autumn and winter. Keywords: plant growth regulators, coast redwood, growth indicators, physiological condition, environment stress Journal: Journal of Forest Science Pages: 236-243 Volume: 66 Issue: 6 Year: 2020 DOI: 10.17221/118/2019-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/118/2019-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-202006-0002.txt Handle: RePEc:caa:jnljfs:v:66:y:2020:i:6:id:118-2019-JFS Template-Type: ReDIF-Article 1.0 Author-Name: Behnaz Yousefshahi Author-Workplace-Name: Department of Soil Science, Faculty of Agriculture, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran Author-Name: Masoud Bazgir Author-Workplace-Name: Department of Soil and Water Engineering, Faculty of Agriculture, Ilam University, Ilam, Iran Author-Name: Samad Jamali Author-Workplace-Name: Department of Plant Protection, Faculty of Agriculture, Razi University, Kermanshah, Iran Author-Name: Fatemeh Valizadeh Kakhki Author-Workplace-Name: Department of Soil and Water Engineering, Faculty of Agriculture, Ilam University, Ilam, Iran Title: Morphological and molecular identification of ectomycorrhizal fungi associated with Persian oak (Quercus brantii Lindl.) tree Abstract: Identification of ectomycorrhizal (ECM) fungi in different ecosystems has major significance. In this research, to identity ECM fungi, we used two methods including the morphological method and the molecular method that is more precise. Basidiocarp collection of fungi associated with oak tree (Quercus brantii Lindl.) roots was carried out in the spring season 2016 and was identified by morphological and molecular methods. We also checked macroscopic and microscopic features and measured each structure using BioloMICS Measures software. To verify the morphological identification, the internal transcribed spacer (ITS) region was amplified by PCR using the primer pair ITS1/ITS4, and the sequences were analyzed. According to the morphological observations, the identified species were Amanita crocea, Boletus comptus, Tricholoma giganteum, and Inocybe rimosa. Besides, based on molecular techniques by comparing sequences, we identified five species out of the eight ones as A. crocea and other species as T. giganteum, I. rimosa and B. comptus. Both morphological and molecular methods are necessary for identifying ECM fungi associated with tree roots in the Zagros zone in the west of Iran. Keywords: mycorrhizal symbiosis, forest ecosystem, Amanita, Tricholoma, Inocybe, Boletus Journal: Journal of Forest Science Pages: 244-251 Volume: 66 Issue: 6 Year: 2020 DOI: 10.17221/31/2020-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/31/2020-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-202006-0003.txt Handle: RePEc:caa:jnljfs:v:66:y:2020:i:6:id:31-2020-JFS Template-Type: ReDIF-Article 1.0 Author-Name: Vasyl Yukhnovskyi Author-Workplace-Name: Department of Forests Restoration and Meliorations, Forest Institute, National University of Life and Environmental Sciences of Ukraine, Kyiv Author-Name: Olha Zibtseva Author-Workplace-Name: Department of Landscape Architecture and Phytodesign, Forest Institute, National University of Life and Environmental Sciences of Ukraine, Kyiv Title: Green space trends in small towns of Kyiv region according to EOS Land Viewer - a case study Abstract: The state of ecological balance of cities is determined by the analysis of the qualitative composition of green space. The lack of green space inventory in small towns in the Kyiv region has prompted the use of express analysis provided by the EOS Land Viewer platform, which allows obtaining an instantaneous distribution of the urban and suburban territories by a number of vegetative indices and in recent years - by scene classification. The purpose of the study is to determine the current state and dynamics of the ratio of vegetation and built-up cover of the territories of small towns in Kyiv region with establishing the rating of towns by eco-balance of territories. The distribution of the territory of small towns by the most common vegetation index NDVI, as well as by SAVI, which is more suitable for areas with vegetation coverage of less than 30%, has been monitored. We found that the share of dense vegetation in the territory of towns increased on average from 2.4 to 49.3% during 1990-2018. The share of the vegetation cover of moderate density decreased from 40.8 to 27.1%, and of sparse one from 37.5 to 14.9%. High variability of these indicators is noted. The share of open area for small towns decreased on average from 15.4 to 3.8%. The vegetation-free areas in 1990, 2005 and 2018 accounted for 3.8, 2.6 and 4.4%, respectively, which may indicate the intensive expansion of built-up areas over the last fifteen years. The development of urban greening systems was completely individual and depended not only on natural conditions but also on the manifestations of anthropogenic activity. The reduction of the ecological balance of the territories of small towns as of 2018 took place in the following sequence - Irpin, Tarashcha, Boiarka, Rzhyshchiv, Kaharlyk, Skvyra, Myronivka, Yahotyn, Uzyn. Keywords: ecological balance, express analysis, rating, vegetation indices Journal: Journal of Forest Science Pages: 252-263 Volume: 66 Issue: 6 Year: 2020 DOI: 10.17221/142/2019-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/142/2019-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-202006-0004.txt Handle: RePEc:caa:jnljfs:v:66:y:2020:i:6:id:142-2019-JFS