Template-Type: ReDIF-Article 1.0 Author-Name: Tomáš Nečas Author-Workplace-Name: Department of Fruit Growing, Faculty of Horticulture, Mendel University in Brno, Lednice, Czech Republic Author-Name: Jan Wolf Author-Workplace-Name: Department of Fruit Growing, Faculty of Horticulture, Mendel University in Brno, Lednice, Czech Republic Author-Name: Tomáš Kiss Author-Workplace-Name: Department of Fruit Growing, Faculty of Horticulture, Mendel University in Brno, Lednice, Czech Republic Author-Name: Martina Göttingerová Author-Workplace-Name: Department of Fruit Growing, Faculty of Horticulture, Mendel University in Brno, Lednice, Czech Republic Author-Name: Ivo Ondrášek Author-Workplace-Name: Department of Fruit Growing, Faculty of Horticulture, Mendel University in Brno, Lednice, Czech Republic Author-Name: Monika Bieniasz Author-Workplace-Name: Department of Pomology and Apiculture, University of Agriculture in Kraków, Poland Title: Evaluation of certain pomological and phenological traits of selected asian pear varieties growing in Middle European conditions Abstract: The cultivation and breeding of new pear tree varieties have great potential, especially with the changing climate. The introduction of genetic resources and varieties from regions with a high genetic diversity can have a positive effect on the cultivation of pear trees in our region. In this experiment, a total of 23 Asian pear varieties originating from Japan and China were assessed. Based on the values obtained, the varieties were sorted, and suitable varieties for the conditions of the Czech Republic were selected. The early-maturing varieties that proved to be promising were 'Shinseiki' and 'Zao Su Li' due to their refreshing juiciness, plasticity and ease of cultivation. generally low demand. The 'Shinseiki' bears medium- to small-sized fruits (103 g on average). The size of the fruits of the evaluated cultivar 'Zao Su Li' can reach very large sizes (255 g on average). The medium-maturity varieties suitable for the conditions of the Czech Republic were 'Hosui' and 'Dangshansu Li' (ripening on the September 11-19 on average) and another interesting variety, 'Kirgizkaja zimnaja'. Other suitable medium-maturity varieties are 'Nijisseiki', 'Sha Li' and 'Pung Su'. Of the assessed late-maturing varieties, the promising ones were 'Ya Li' and 'Mut Chen', especially due to their relatively high storability under cold storage. Keywords: pyrus, pomological traits, phenology, fruit quality, Nashi Journal: Horticultural Science Pages: 81-92 Volume: 47 Issue: 2 Year: 2020 DOI: 10.17221/83/2019-HORTSCI File-URL: http://hortsci.agriculturejournals.cz/doi/10.17221/83/2019-HORTSCI.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/hor-202002-0001.txt Handle: RePEc:caa:jnlhor:v:47:y:2020:i:2:id:83-2019-HORTSCI Template-Type: ReDIF-Article 1.0 Author-Name: Radovan Tůma Author-Workplace-Name: Agrokomplex Ohře a.s., Bohušovice nad Ohří, Czech Republic Author-Name: Jan Goliáš Author-Workplace-Name: Department of Post-Harvest Technology of Horticultural Products, Mendel University Brno, Brno, Czech Republic *Corresponding autor: jan.golias@mendelu.cz Title: Half-cooling time of cabbage stored in a refrigerated room Abstract: Cabbage heads stored in containers in a high-capacity cooling room were evaluated by the half-cooling times. The temperature of the heads and the surrounding air in their immediate vicinity was measured by a puncture thermometer. The shortest half-cooling times were measured in the immediate vicinity of the evaporator; in contrast, very long half-cooling times were measured in a container on the opposite side of the cooling room. The measured values were longer by one order of magnitude. When cabbage heads are inside the container furthest from the evaporator, without being covered by a layer of stacked containers, then the heat transfer passes directly into the ambient air, thus, the half-cooling times in this container were not the longest. The head cabbage cooling, evaluated by the half-cooling time (in hours) and the end of cooling time (in hours), in the chambers to a storage temperature (0 °C) are directly proportional. The heads in a container 14 m from the evaporator, in the bottom position, but not covered by other containers had a half-cooling time of 194.7 hours, with a total time of 973.5 h, because the air circulating around the container, permanently cooled down the stored heads. The total calculated cooling time will be extended 5.0 times. For the heads in the same position, but 7 m from the evaporator, the heat dissipation at the bottom position was so slow that the half-cooling time was 225 hours, and the total time was 1 125 hours (46.88 days), which was the longest cooling time for the cabbage heads. Keywords: head cabbage, refrigeration, distance of container from evaporator Journal: Horticultural Science Pages: 93-99 Volume: 47 Issue: 2 Year: 2020 DOI: 10.17221/136/2018-HORTSCI File-URL: http://hortsci.agriculturejournals.cz/doi/10.17221/136/2018-HORTSCI.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/hor-202002-0002.txt Handle: RePEc:caa:jnlhor:v:47:y:2020:i:2:id:136-2018-HORTSCI Template-Type: ReDIF-Article 1.0 Author-Name: Agnieszka Stasiak Author-Workplace-Name: Department of Environmental Protection, Author-Name: Barbara Łata Author-Workplace-Name: Laboratory of Basic Sciences in Horticulture, Faculty of Horticulture, Biotechnology, and Landscape Architecture, Warsaw University of Life Sciences - SGGW, Warsaw, Poland Author-Name: Monika Bieniasz Author-Workplace-Name: Department of Pomology and Apiculture, University of Agriculture in Cracow, Cracow, Poland Author-Name: Piotr Latocha Author-Workplace-Name: Department of Environmental Protection, Title: Morphological variation of male A. arguta plants affects their flowering potential and pollen efficiency Abstract: Actinidia arguta (Siebold et Zucc.) Planch. ex Miq. is functionally a cryptic dioecious plant and successful pollination is crucial for achieving high quality fruit. The extent and bases of morphological variability in female genotypes have been well studied, but here we focus on the males. Mature plants of seven male A. arguta genotypes were studied in 2016 and 2017 during which a suite of phenological and morphological features was measured on ten randomly chosen one-year-old canes on each plant. This analysis was complemented by two other, specialized measures potentially related to pollination efficiency, namely pollen quality, and quantity. The time of bud break was similar each year across all genotypes and the pollen quality was uniformly very high (viability - 95.0-99.9% and germination - 89.0-97.3%). However, the ten genotypes exhibited high variability in both the number of flowers per inflorescence and pollen quantity, indicating marked differences in their flowering potential and efficiency as pollinizers. The male kiwiberry indicators developed in this study - flowering potential and pollen efficiency, appear to be effective tools for the comparative evaluation of male A. arguta genotypes. Keywords: kiwiberry, pollination, hardy kiwifruit, male genotype indicators, pollen quantity Journal: Horticultural Science Pages: 100-109 Volume: 47 Issue: 2 Year: 2020 DOI: 10.17221/37/2019-HORTSCI File-URL: http://hortsci.agriculturejournals.cz/doi/10.17221/37/2019-HORTSCI.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/hor-202002-0003.txt Handle: RePEc:caa:jnlhor:v:47:y:2020:i:2:id:37-2019-HORTSCI Template-Type: ReDIF-Article 1.0 Author-Name: Francesco Sottile Author-Workplace-Name: Department of Architecture, University of Palermo, Palermo, Italy Author-Name: Nicole Roberta Giuggioli Author-Workplace-Name: Department of Agricultural, Forest and Food Sciences, University of Torino, Grugliasco Torino, Italy Author-Name: Daniela Torello Marinoni Author-Workplace-Name: Department of Agricultural, Forest and Food Sciences, University of Torino, Grugliasco Torino, Italy Author-Name: Cristiana Peano Author-Workplace-Name: Department of Agricultural, Forest and Food Sciences, University of Torino, Grugliasco Torino, Italy Author-Name: Maria Beatrice Del Signore Author-Workplace-Name: Department of Agricultural, Food and Forest Sciences, University of Palermo, Palermo, Italy Title: Selection and micropropagation of valuable caper genotypes Abstract: The high quality of the various biotypes present in the natural or cultivated state is one of the main features for caper production. Up to now, however, no selection activity has been carried out in order to identify the most suitable accessions for providing better quality products. In this paper, we report the first results of a selection of caper genotypes characterised by significant qualitative traits. A micropropagation protocol was evaluated in order to improve and allow the multiplication of the most promising Capparis spinosa L. subsp. spinosa genotypes, selected in Salina (Aeolian Islands), Sicily (Italy), in collaboration with the most important local growers. Keywords: Capparis spinosa, in vitro culture, selection, protocol, explants Journal: Horticultural Science Pages: 110-116 Volume: 47 Issue: 2 Year: 2020 DOI: 10.17221/40/2019-HORTSCI File-URL: http://hortsci.agriculturejournals.cz/doi/10.17221/40/2019-HORTSCI.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/hor-202002-0004.txt Handle: RePEc:caa:jnlhor:v:47:y:2020:i:2:id:40-2019-HORTSCI Template-Type: ReDIF-Article 1.0 Author-Name: Sina Cosmulescu Author-Workplace-Name: Department of Horticulture & Food Science, Horticulture Faculty, University of Craiova, Craiova, Romania Author-Name: Flavia Scrieciu Author-Workplace-Name: Doctoral School of Plant and Animal Resources Engineering, Horticulture Faculty, University of Craiova, Craiova, Romania Author-Name: Manuela Manda Author-Workplace-Name: Department of Horticulture & Food Science, Horticulture Faculty, University of Craiova, Craiova, Romania Title: Determination of leaf characteristics in different medlar genotypes using the ImageJ program Abstract: The size and shape of leaves can vary significantly between different genotypes within the same species and they implicitly influence plant growth and therefore productivity. The aim of this study was to compare the length, width, and surface area of leaf in nine medlar genotypes (Mespilus germanica L.) through image segmentation procedure using ImageJ software. The data indicate large variations for leaf surface area characteristics from one genotype to another, 2.12 fold for leaf surface area (22.95-48.8 cm2), 1.38 times for leaf length (8.8-12.18 cm) and 1.6 times for leaf width (3.5-5.60 cm). Leaf shape and leaf surface area vary between different genotypes analysed, and the method used can represent a good, non-destructive model of quick and reliable estimation of the medlar leaves surface area. The information obtained can be used in physiology studies, regardless of genetic material. Keywords: Mespilus germanica L., genotypes, leaf area, leaf dimensions Journal: Horticultural Science Pages: 117-121 Volume: 47 Issue: 2 Year: 2020 DOI: 10.17221/97/2019-HORTSCI File-URL: http://hortsci.agriculturejournals.cz/doi/10.17221/97/2019-HORTSCI.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/hor-202002-0005.txt Handle: RePEc:caa:jnlhor:v:47:y:2020:i:2:id:97-2019-HORTSCI Template-Type: ReDIF-Article 1.0 Author-Name: Sławomir Głuszek Author-Workplace-Name: Microbiology Department, Research Institute of Horticulture, Skierniewice, Poland Author-Name: Edyta Derkowska Author-Workplace-Name: Microbiology Department, Research Institute of Horticulture, Skierniewice, Poland Author-Name: Lidia Sas-Paszt Author-Workplace-Name: Microbiology Department, Research Institute of Horticulture, Skierniewice, Poland Author-Name: Mirosław Sitarek Author-Workplace-Name: Department of Plant Genetic Resources of Horticultural Crops, Research Institute of Horticulture, Skierniewice, Poland Author-Name: Beata Sumorok Author-Workplace-Name: Microbiology Department, Research Institute of Horticulture, Skierniewice, Poland Title: Influence of bioproducts and mycorrhizal fungi on the growth and yielding of sweet cherry trees Abstract: The experiment assessed the influence of various biofertilizers and biostimulants on the growth characteristics of the root system, its colonization by arbuscular mycorrhizal fungi and the yielding of sweet cherry trees in field conditions. The experiment, conducted in Pomological Orchard of Research Institute of Horticulture located in Skierniewice during 2011-2014, involved the use of a mycorrhizal substrate, organic fertilizers and biostimulant in randomised block design. The control combination consisted of plants fertilized with mineral fertilizers (NPK). The use of the organic fertilizer BF Ekomix in dose 100 g per tree each year in the spring significantly increased the number of root tips in comparison with the control trees. There was also a tendency for the roots to lengthen and increase their surface area under the influence of this biofertilizer. In addition, the inoculation of roots with the mycorrhizal substrate in dose 200 g per tree per year stimulated the colonization of the roots of sweet cherry trees by arbuscular mycorrhizal fungi, which in turn led to improved root growth parameters. Keywords: organic fertilizer, mycorrhizal inoculum, bioprepatation, sweet cherry, root growth, mycorrhiza Journal: Horticultural Science Pages: 122-129 Volume: 47 Issue: 2 Year: 2020 DOI: 10.17221/102/2018-HORTSCI File-URL: http://hortsci.agriculturejournals.cz/doi/10.17221/102/2018-HORTSCI.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/hor-202002-0006.txt Handle: RePEc:caa:jnlhor:v:47:y:2020:i:2:id:102-2018-HORTSCI Template-Type: ReDIF-Article 1.0 Author-Name: Ivana Barošová Author-Workplace-Name: The Silva Tarouca Research Institute for Landscape and Ornamental Gardening, Průhonice, Czech Republic Author-Name: Markéta Šantrůčková Author-Workplace-Name: The Silva Tarouca Research Institute for Landscape and Ornamental Gardening, Průhonice, Czech Republic Author-Name: Pavel Matiska Author-Workplace-Name: Department of Horticulture, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic Author-Name: Adam Baroš Author-Workplace-Name: The Silva Tarouca Research Institute for Landscape and Ornamental Gardening, Průhonice, Czech Republic Title: Ornamental perennials in small rural settlements: a case study from the Czech Republic Abstract: The history of a site includes not only preserved historical buildings, but also areas with an assortment of plants, which have been preserved for many years. Rural settlements make up 80% of all the municipalities in the Czech Republic, with greenery covering 50-70% of their area. There are dominant trees and shrubs and an herb layer. The herb layer has high species diversity and species typical of the area, but at the same time, its long-term survival is in jeopardy. The continuity of rural settlements has been disturbed since the second half of the 20th century. Rural spaces often become uniform and impersonal, without links to the surrounding countryside, traditions, and history. This study included a total of 124 perennial families within three studied regions. Keywords: rural landscape, plants, local identity, suburbanisation, Central Europe Journal: Horticultural Science Pages: 130-138 Volume: 47 Issue: 2 Year: 2020 DOI: 10.17221/21/2019-HORTSCI File-URL: http://hortsci.agriculturejournals.cz/doi/10.17221/21/2019-HORTSCI.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/hor-202002-0007.txt Handle: RePEc:caa:jnlhor:v:47:y:2020:i:2:id:21-2019-HORTSCI