Template-Type: ReDIF-Article 1.0 Author-Name: Marco Antonio Villegas Olguín Author-Workplace-Name: Department of Horticulture, University Autonomus Agrarian Antonio Narro, Saltillo, Coahuila, México Author-Name: Marcelino Cabrera De la Fuente Author-Workplace-Name: Department of Horticulture, University Autonomus Agrarian Antonio Narro, Saltillo, Coahuila, México Author-Name: Adalberto Benavides Mendoza Author-Workplace-Name: Department of Horticulture, University Autonomus Agrarian Antonio Narro, Saltillo, Coahuila, México Author-Name: Antonio Juárez Maldonado Author-Workplace-Name: Department of Horticulture, University Autonomus Agrarian Antonio Narro, Saltillo, Coahuila, México Author-Name: Alberto Sandoval Rangel Author-Workplace-Name: Department of Horticulture, University Autonomus Agrarian Antonio Narro, Saltillo, Coahuila, México Author-Name: Eloy Fernandez Cusimamani Author-Workplace-Name: Department of Crop Sciences and Agroforestry, Faculty of Tropical AgriSciences, Czech University of Life Sciences Prague, Czech Republic Title: Commercial and nutraceutical quality of grafted melon cultivated under hydric stress Abstract: Water stress decreases the quality of fruit by generating reactive oxygen species. Grafting is a technique that can improve the efficiency of crop water usage. This work was performed in order to assess the effect of different water stresses on the commercial and nutraceutical quality of a melon fruit. Cantaloupe melon plants, grown under shade houses were grafted onto a creole pumpkin rootstock and grown with different water stresses (20, 30, and 40 kPa). The grafted melon plants under 30-kPa water stress (G30) showed greater fruit firmness and increased catalase activity. The G30 fruits showed an increase in GPX activity of up to 80% over the non-grafted plants. The GSH was higher in fruits subjected to the 40-kPa water tension. The superoxide dismutase showed a 15% greater inhibition in the fruits from the non-grafted plants. At higher water tensions, the DPPH antioxidant activity decreased, while the vitamin C content increased. Keywords: antioxidants, Cucumis melo, water stress, nutraceuticals Journal: Horticultural Science Pages: 139-149 Volume: 47 Issue: 3 Year: 2020 DOI: 10.17221/139/2019-HORTSCI File-URL: http://hortsci.agriculturejournals.cz/doi/10.17221/139/2019-HORTSCI.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/hor-202003-0001.txt Handle: RePEc:caa:jnlhor:v:47:y:2020:i:3:id:139-2019-HORTSCI Template-Type: ReDIF-Article 1.0 Author-Name: Renata Wojciechowska Author-Workplace-Name: Department of Botany, Physiology and Plant Protection, Faculty of Biotechnology and Horticulture, University of Agriculture in Krakow, Krakow, Poland Author-Name: Anna Kołton Author-Workplace-Name: Department of Botany, Physiology and Plant Protection, Faculty of Biotechnology and Horticulture, University of Agriculture in Krakow, Krakow, Poland Author-Name: Olga Długosz-Grochowska Author-Workplace-Name: Department of Botany, Physiology and Plant Protection, Faculty of Biotechnology and Horticulture, University of Agriculture in Krakow, Krakow, Poland Author-Workplace-Name: Malopolska Centre of Biotechnology, Jagiellonian University, Kraków, Poland Author-Name: Edward Kunicki Author-Workplace-Name: Department of Horticulture, Faculty of Biotechnology and Horticulture, University of Agriculture in Krakow, Krakow, Poland Author-Name: Katarzyna Mrowiec Author-Workplace-Name: Department of Horticulture, Faculty of Biotechnology and Horticulture, University of Agriculture in Krakow, Krakow, Poland Author-Name: Paweł Bathelt Author-Workplace-Name: Department of Horticulture, Faculty of Biotechnology and Horticulture, University of Agriculture in Krakow, Krakow, Poland Title: LED lighting affected the growth and metabolism of eggplant and tomato transplants in a greenhouse Abstract: Light-emitting diodes (LEDs) were used for the spring greenhouse cultivation of eggplant (Solanum melongena L.) 'Milar F1' and tomato (S. lycopersicon L.) 'Benito F1' transplants. Seedlings were grown under natural light conditions with the supplemental LED light. A 16-h photoperiod provided plants with a DLI of 12.6 (eggplant) and 9.6 (tomato) mol m2/day. Four supplemental light spectra were tested: L1 (90% red + 10% blue); L2 (80% red + 20% blue); L3 (43% red + 42% blue+15% green) and L4 (56% red + 26% blue + 15% green + 3% UV-A). The PPFD in each LED light treatment was 150 ± 20 µmol/m2.s. Compared to the control plants (without LED lighting), the eggplant transplants had about a 25% larger leaf area and a higher level of total phenol content as well as a higher antiradical scavenging activity under the L1 spectrum. The favourable spectrum for the tomato transplants consisted of red to blue in a ratio of 1 : 1 mixed with a green light (L3) - the leaves were characterised by a higher content of dry matter, soluble sugars, photosynthetic pigments and total phenols; also the radical scavenging activity increased in comparison to the control group. It was shown that the supplemental irradiation of transplants was economically acceptable. Keywords: antioxidant properties, growth parameters, photosynthetic pigments, sugars Journal: Horticultural Science Pages: 150-157 Volume: 47 Issue: 3 Year: 2020 DOI: 10.17221/78/2019-HORTSCI File-URL: http://hortsci.agriculturejournals.cz/doi/10.17221/78/2019-HORTSCI.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/hor-202003-0002.txt Handle: RePEc:caa:jnlhor:v:47:y:2020:i:3:id:78-2019-HORTSCI Template-Type: ReDIF-Article 1.0 Author-Name: Andrzej Kalisz Author-Workplace-Name: Department of Horticulture, University of Agriculture in Krakow, Kraków, Poland Author-Name: Agnieszka Sękara Author-Workplace-Name: Department of Horticulture, University of Agriculture in Krakow, Kraków, Poland Author-Name: Robert Pokluda Author-Workplace-Name: Department of Vegetable Sciences and Floriculture, Mendel University in Brno, Lednice, Czech Republic Author-Name: Aleš Jezdinský Author-Workplace-Name: Department of Vegetable Sciences and Floriculture, Mendel University in Brno, Lednice, Czech Republic Author-Name: Jarmila Neugebauerová Author-Workplace-Name: Department of Vegetable Sciences and Floriculture, Mendel University in Brno, Lednice, Czech Republic Author-Name: Aneta Grabowska Author-Workplace-Name: Department of Horticulture, University of Agriculture in Krakow, Kraków, Poland Author-Name: Rita Jurkow Author-Workplace-Name: Department of Horticulture, University of Agriculture in Krakow, Kraków, Poland Author-Name: Katalin Angéla Slezák Author-Workplace-Name: Department of Vegetable and Mushroom Growing, Szent István University, Budapest, Hungary Title: Physio-biochemical responses of sage genotypes to chilling Abstract: This study evaluated sage (Salvia officinalis L.) genotypes (cultivars: 'Berggarten', 'Icterina', 'Purpurascens', 'Tricolor', local Czech accessions from the Lednice region, South Moravia: 'LDN-1' and 'LDN-2') subjected to chilling (4 °C, 2 weeks, 18 °C ‒ control) for comparison of antioxidant defence systems. Chilling caused the most significant increase in the peroxidase activity in 'Purpurascens' and 'Tricolor', by 108.5% and 15.7%, respectively, while the catalase was unaffected by the low temperature. The phenolics increased in 'Purpurascens' and 'LDN-1' by 17.2% and 18.1%, respectively, and decreased in 'LDN-2' and 'Tricolor', by 10.6% and 11.7%, respectively, as a result of the chilling. In the sage treated with chilling, the scavenging of 2,2-diphenyl-1-picrylhydrazyl radicals (DPPH*) was higher (by 3%, on average), especially in 'Berggarten', 'Icterina', and 'Purpurascens', than in the control. However, the chilled 'LDN-2' and 'Tricolor' showed lower antioxidant∙ activity in comparison to the control. The malondialdehyde remained stable or was higher in the control, with the only exception being 'LDN-1', where its content increased by 11.4% in the chilled sage. In most genotypes, the content of the dry weight increased in the chilled plants by 9.4% on average. The responses of 'Icterina' and 'Purpurascens' to the low temperature was the most significant, but resulted from different physiological mechanisms. 'Purpurascens' showed the highest increase in the peroxidase activity due to the chilling, while the highest increase in the antioxidant activity was observed for 'Icterina'. Keywords: antioxidants, genotypic variability, Salvia officinalis, low temperature Journal: Horticultural Science Pages: 158-168 Volume: 47 Issue: 3 Year: 2020 DOI: 10.17221/81/2018-HORTSCI File-URL: http://hortsci.agriculturejournals.cz/doi/10.17221/81/2018-HORTSCI.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/hor-202003-0003.txt Handle: RePEc:caa:jnlhor:v:47:y:2020:i:3:id:81-2018-HORTSCI Template-Type: ReDIF-Article 1.0 Author-Name: Yoshihiro Takemura Author-Workplace-Name: Faculty of Agriculture, Tottori University, Koyama, Tottori, Japan Author-Name: Masayuki Kishimoto Author-Workplace-Name: Tottori Prefectural Agriculture and forest Research Institute, Horticultural Experiment Center, Hokuei, Tottori, Japan Author-Name: Fumio Tamura Author-Workplace-Name: Faculty of Agriculture, Tottori University, Koyama, Tottori, Japan Title: Selection of cut flower species affected promotion of flowering and stem elongation by far-red lighting or heating treatments on end of day under limited sunshine from autumn to winter Abstract: The effect of a brief exposure to treatments of end-of-day (EOD) far-red (FR) light and EOD-heating on flowering and stem elongation in certain species cultivated in areas with limited sunshine from autumn to winter has been investigated. Thirteen EOD-FR treated cultivars among all 24 cultivars tested in experiment 1, showed earlier flowering than control plants. Additionally, Kanzaki No.21, F1 Winter cherry and Gypsy deep rose were earlier to flower under the all night-FR treatment than under the EOD-FR treatment. Further, 13 cultivars among all cultivars tested in experiment 1 showed greater stem length, whereas 16 cultivars of them showed greater mean internode length than controls when treated with EOD-FR. The days to flowering in 13 cultivars treated by EOD-Heating, flowering was earlier than in controls. Also, stem length and mean internode length were also promoted by the same treatment in 7 cultivars. Additionally, flowering and stem elongation of Stella rose, Arizona sun, Suzuhime and Extra carmine rose were promoted by a combination of both treatments, and productivity and quality were improved. These results suggest that the treatments tested can help the production of cut-flowers in areas with limited sunshine from autumn to winter, although the method of application of the treatments must be optimized for each species. Keywords: EOD, FR, flowering days, stem length Journal: Horticultural Science Pages: 169-179 Volume: 47 Issue: 3 Year: 2020 DOI: 10.17221/174/2018-HORTSCI File-URL: http://hortsci.agriculturejournals.cz/doi/10.17221/174/2018-HORTSCI.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/hor-202003-0004.txt Handle: RePEc:caa:jnlhor:v:47:y:2020:i:3:id:174-2018-HORTSCI Template-Type: ReDIF-Article 1.0 Author-Name: Agnieszka Krzymińska Author-Workplace-Name: Department of Ornamental Plants, Poznań University of Life Sciences, Poznań, Poland Author-Name: Jan Bocianowski Author-Workplace-Name: Department of Mathematical and Statistical Methods, Poznań University of Life Sciences, Poznań, Poland Author-Name: Katarzyna Mądrachowska Author-Workplace-Name: Department of Ornamental Plants, Poznań University of Life Sciences, Poznań, Poland Title: The use of plants on balconies in the city Abstract: As a popular and excellent place for plants, balconies enable people easy access to and close contact with nature, thus forming an integral part of the urban green infrastructure. The aim of the study was to assess the use of plants on balconies of detached houses and blocks of flats in the small Polish town of Sieraków. Plants were grown on about 33% of the balconies of detached houses and on 51% of the balconies of blocks of flats. Most of the balconies were decorated with one plant species only and the plants were most frequently placed on the railing. The most popular plant species were Pelargonium peltatum (L.) L'Hér., Pelargonium zonale (L.) L'Hér. and Petunia × atkinsiana D. Don. There were no large differences between both the building types as regards to the balcony decoration. Keywords: urban greening, flowers, buildings Journal: Horticultural Science Pages: 180-187 Volume: 47 Issue: 3 Year: 2020 DOI: 10.17221/166/2018-HORTSCI File-URL: http://hortsci.agriculturejournals.cz/doi/10.17221/166/2018-HORTSCI.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/hor-202003-0005.txt Handle: RePEc:caa:jnlhor:v:47:y:2020:i:3:id:166-2018-HORTSCI