Horticultural Science, 2020 (vol. 47), issue 4
Determination of the pomological and nutritional properties of selected plum cultivars and minor fruit speciesOriginal Paper
Jan Wolf, Martina Göttingerová, Jiøí Kaplan, Tomá¹ Kiss, Rostislav Venuta, Tomá¹ Neèas
Hort. Sci. (Prague), 2020, 47(4):181-193 | DOI: 10.17221/18/2020-HORTSCI 
This study included twenty-three samples of minor fruit species and twenty-three plum cultivars. First of all, the pomological properties of the plum cultivars were assessed, where the cultivar 'Aphrodite' was determined as the cultivar with the biggest fruits (56.6 g). The selected nutritional properties were subsequently determined in all forty-six samples. The highest value of the total soluble solids in the plums was 27.3 % in 'Stanley' (Prunus domestica) and 26.1 % in 'Krasavica' (Sorbus aucuparia) in the minor fruits; the highest total content of ascorbic acid in the plums was 83.3 mg/100 g in 'Stanley' (P. domestica) and 622.9 mg/100 g in 'Krasavica'...
Stimulation of ex vitro growth of Rhododendron hybrids 'Nova Zembla' and 'Alfred' by inoculation of roots with Serendipita indicaOriginal Paper
Aleksandra Trzewik, Teresa Orlikowska, Waldemar Kowalczyk, Robert Maciorowski, Agnieszka Marasek-Cio³akowska, Evelyn Klocke
Hort. Sci. (Prague), 2020, 47(4):194-202 | DOI: 10.17221/7/2020-HORTSCI
Experiments were carried out to study the consequences of inoculating Rhododendron 'Nova Zembla' and 'Alfred' microcuttings and young plants with Serendipita indica (formerly Piriformospora indica), an endophytic fungus. The inoculation at the in vitro rooting stage decreased the in vitro root and shoot quality, but after planting microplants in a greenhouse in a non-fertilised peat substrate, the plants grew 33% taller, with 10% more leaves and with more abundant roots in comparison with the non-inoculated microplants. The young plants rooted in vitro, acclimated in a greenhouse in a peat substrate and inoculated with S. indica at the time of the...
The influence of fungi of the Trichoderma genus on the flowering of Freesia refracta Klatt 'Argentea' in winterOriginal Paper
Beata Janowska, Roman Andrzejak, Tomasz Kosiada
Hort. Sci. (Prague), 2020, 47(4):203-210 | DOI: 10.17221/35/2019-HORTSCI
The flowering and quality of Freesia refracta Klatt 'Argentea' were assessed after the application of fungi of the Trichoderma genus and assimilation lighting. The assimilation lighting accelerated the flowering of the Freesia refracta 'Argentea' plants by 3-4 weeks. The fungi of the Trichoderma genus accelerated the flowering of the Freesia refracta 'Argentea' plants with light deficit by about one week. The assimilation lighting resulted in the development of shorter main inflorescence shoots regardless of the fact whether the plants had been treated with the fungi of the Trichoderma genus or not. The assimilation lighting and the fungi of the Trichoderma...
A preliminary evaluation of the effects of pollinator enhancement and gibberellins on the fruit set and fruit shape of 'Conference' pears - Short CommunicationShort Communication
Jolien Smessaert, Gaby Van Kemenade, Anneleen Arnoys, Olivier Honnay, Wanness Keulemans
Hort. Sci. (Prague), 2020, 47(4):211-216 | DOI: 10.17221/123/2019-HORTSCI
'Conference' (Pyrus communis L.) is a self-incompatible cultivar, although it can also set fruit parthenocarpically. Stimulating parthenocarpy through gibberellin (GA) applications increases the fruit set, but it may also negatively affect the fruit size and shape. The aim of this study was to investigate the effects of a bumblebee (BB) amendment in combination with a GA treatment on the fruit set and fruit shape of 'Conference' pears. In the first experiment, we applied three treatments (GA, GA + BB & control) in a 'Conference' monoculture. In the second experiment, we applied two treatments (GA & GA + BB) in a 'Conference' orchard inter-planted...
'Mini PS': A new mini melon breeding line exploiting the "Dudaim" variability - Short CommunicationShort Communication
Gabriel Castro, Gorka Perpiñá, Belén Picó, Cristina Esteras
Hort. Sci. (Prague), 2020, 47(4):217-220 | DOI: 10.17221/86/2019-HORTSCI
'Piel de Sapo' is one of the most consumed market class of melons in the Mediterranean area and it represents an important economic crop in Spain. The 'Mini PS' melon breeding line, which bears two main introgressions from the dudaim 'Queen's pocket' melon in the Piel de Sapo genetic background, was evaluated for its fruit quality traits in three environments. Some interesting commercial characteristics were detected, such as a notable decrease in the fruit weight and a rounder shape, compared with Piel de Sapo, while the other quality traits were not altered. Thus, this mini melon line, ideal as a personal melon, may be useful in the development of...