Horticultural Science, 2018 (vol. 45), issue 2
Influence of the pruning system on the growth and productivity of slender spindle apple treesOriginal Paper
Josef Sus, Radka Zeinerová, Lukáš Zíka
Hort. Sci. (Prague), 2018, 45(2):55-63 | DOI: 10.17221/63/2017-HORTSCI 
Slender spindle is currently the most widespread pruning system for apple trees in the Czech Republic. However, further modifications of this pruning system have been developed. In this study, two pruning systems were compared in the years 2012 to 2015: slender spindle and modified slender spindle (characterised by 'click' pruning). The pruning systems were validated on three varieties, using either winter pruning or winter pruning supplemented with late summer pruning in August. The studied parameters included the average length of annual shoots, increase of trunk cross-sectional area (ITCA), fruit yield per tree, specific yield, average fruit weight,...
Productivity and tree performance of new plum cultivars from the Czech RepublicOriginal Paper
Jan Blažek, Lubor Zelený, Jana Křelinová
Hort. Sci. (Prague), 2018, 45(2):64-68 | DOI: 10.17221/97/2017-HORTSCI
This 12-year study was conducted to evaluate the performance of new plum cultivars from the Czech Republic. A new cultivar, 'Stáňa', was the most productive, followed by 'Kamir' and the standard cultivar 'Stanley'. The new plum cultivar 'Stáňa' also had the highest mean yield per cubic meter of tree canopy. Next in order of production efficiency were 'Stanley', 'Amátka', 'Kamir' and 'Čačanska lepotica'. According to canopy volume, the most vigorous cultivar was 'Kamir' followed by 'Samera' and 'Stáňa'. The least vigorous was 'Dwarf', having a canopy volume distinctly smaller than 'Amátka', which was next in...
Apple rootstock trials at Warsaw University of Life Sciences-SGGW, PolandOriginal Paper
Cezary Piestrzeniewicz, Dariusz Wrona, Ewa Jadczuk-Tobjasz, Andrzej Sadowski
Hort. Sci. (Prague), 2018, 45(2):69-75 | DOI: 10.17221/205/2016-HORTSCI
valuation of 22 dwarfing and semi-dwarfing apple rootstocks for several scion cultivars was conducted on fertile soil in the years 1995-2010. It was found that most of the new rootstocks performed similarly to M.9 EMLA with respect to vigour, yield, cropping efficiency and fruit mass. These rootstocks would not be, therefore, a good replacement for M.9 in Polish climatic conditions. The most promising rootstock was B 9 and some of its derivatives, e.g., B 146, B 396, P 59 and P 60. However, their suitability may be limited to...
The effect of using grafted seedlings on the yield and quality of tomatoes grown in greenhousesOriginal Paper
Rodica Soare, Maria Dinu, Cristina Babeanu
Hort. Sci. (Prague), 2018, 45(2):76-82 | DOI: 10.17221/214/2016-HORTSCI
This study was aimed at observing the effect of the grafting of tomato plants on morphological (vegetative growth), production and nutritive characteristics (quantity and quality of production). For this purpose, the 'Lorely F1' cultivar was used as a scion grafted onto the 'Beaufort' rootstock. Plants were cultivated with a stem and two stems. The observations collected in this study were concerned with the characteristics of plant growth. The studied morphological characteristics were plant height, stem diameter and number of leaves, and the studied production characteristics were the characteristics of fructification and productivity (the average...
Essential factors for in vitro regeneration of rose and a protocol for plant regeneration from leavesOriginal Paper
Inas Mohamed Ali Mahmoud, Anber Mahmoud Ahmed Hassanein
Hort. Sci. (Prague), 2018, 45(2):83-91 | DOI: 10.17221/12/2017-HORTSCI
In vitro propagation of Rosa hybrida, L. cv. 'Eiffel Tower' was improved by the addition of thidiazuron (TDZ) and silver nitrate (AgNo3) to the culture medium. The combination of auxin and cytokinins was indispensable for inducing response from leaf discs. Maintaining cultures under dark was better than light for callus formation and quality. The source of explants was vital in the regeneration process wherein situ explants produced callus while, in vitro explants regenerated somatic embryos and shoots. Gibberellic acid (GA3) had a favorable effect where in vitro explants showed somatic...
Fruit production from Opuntia ficus-indica ecotypes in comparison to commercial Italian clonesOriginal Paper
Carlos Manuel Gaspar Reis, Luiz Carlos Gazarini, Maria Margarida Ribeiro
Hort. Sci. (Prague), 2018, 45(2):92-100 | DOI: 10.17221/48/2017-HORTSCI
Fruit production, as an elementary chemical characteristic of the fruit, was evaluated in 16 Opuntia ficus-indica Portuguese ecotypes cultivated in a marginal soil without tillage, in the second and third years after plantation. The O. ficus-indica ecotypes were compared with the Italian cultivars 'Bianca' and 'Gialla'. Significant differences were found among the O. ficus-indica ecotypes in biomass-related parameters and fruit yield, and different groups were established. Two spineless ecotypes (OFI-12 and OFI-13) had highest biomass production, with 9.9 Mg/ha dry matter on average. This was not significantly different from...
Restoration of a Rudolfine Mannerist historical castle gardenOriginal Paper
Veronika Vonešová, Oldřich Vacek, Jan Vaněk
Hort. Sci. (Prague), 2018, 45(2):101-110 | DOI: 10.17221/77/2017-HORTSCI
This paper discusses plant assortments in historical Mannerist gardens and their use during the restoration of such a historical garden. Mannerist gardens were founded in the territory of Bohemia at the time of Emperor Rudolf II. The model garden for the purposes of this paper is the castle garden in Brandýs nad Labem. There are no reliable historical resources which could specify the plant assortment cultivated in this garden at the time of its creation. However, the period of Rudolfine Mannerism is defined by known determinative elements of garden architecture as well as certain cultivated plant species. For this reason, it was possible to compile...