Template-Type: ReDIF-Article 1.0 Author-Name: Víctor Hugo Durán Zuazo Author-Workplace-Name: IFAPA Centro "Camino de Purchil", Granada, Spain Author-Name: Dionisio Franco Tarifa Author-Workplace-Name: Auntamiento de Almuñécar, Almuñécar, Spain Author-Name: Belén Cárceles Rodríguez Author-Workplace-Name: IFAPA Centro "Camino de Purchil", Granada, Spain Author-Name: Baltasar Gálvez Ruiz Author-Workplace-Name: IFAPA Centro "Camino de Purchil", Granada, Spain Author-Name: Pedro Cermeño Sacristán Author-Workplace-Name: IFAPA Centro "Las Torres", Sevilla, Spain Author-Name: Simón Cuadros Tavira Author-Workplace-Name: Departemento de Ingeniería Forestal, Universidad de Córdoba, Córdoba, Spain Author-Name: Iván Francisco García-Tejero Author-Workplace-Name: IFAPA Centro "Las Torres", Sevilla, Spain Title: Mango fruit quality improvements in response to water stress: implications for adaptation under environmental constraints Abstract: Mediterranean farming is facing increasing periods of water shortage and, in the coming decades, the water reduction is expected to exert the most adverse impact upon growth and productivity. This study was performed to assess the response of the physico-biochemical quality parameters of mango fruits to different doses of irrigation in a Mediterranean subtropical area in Spain. During two-monitoring seasons, trees were subjected to deficit-irrigation strategies receiving 33, 50, and 75% of a crop evapotranspiration (ETC), and a control at 100% ETC. According to the findings and respect to control, the yield was reduced in 8, 11, and 20% for the water-stressed trees at 75, 50, and 33% ETC, respectively, producing smaller fruits in line with the amount of applied irrigation. However, the water-stressed fruits significantly enhanced their quality, in particular at 33% ETC, with regards to the content of the health-promoting phytochemicals (total soluble solids, vitamin C, and β-carotenoids). Thus, sustainable water management without a detrimental effect on the yield could be possible, and farmers should be encouraged to adapt to the environmental constraints, producing improved quality fruits. Keywords: mango fruit, physico-biochemical fruit parameters, sustainable water-savings, subtropical farming, water shortage Journal: Horticultural Science Pages: 1-11 Volume: 48 Issue: 1 Year: 2021 DOI: 10.17221/45/2020-HORTSCI File-URL: http://hortsci.agriculturejournals.cz/doi/10.17221/45/2020-HORTSCI.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/hor-202101-0001.txt Handle: RePEc:caa:jnlhor:v:48:y:2021:i:1:id:45-2020-HORTSCI Template-Type: ReDIF-Article 1.0 Author-Name: Valbona Sota Author-Workplace-Name: Department of Biotechnology, Faculty of Natural Sciences, Tirana, Albania Author-Name: Carla Benelli Author-Workplace-Name: Institute of BioEconomy, National Research Council (CNR/IBE), Sesto Fiorentino (Florence), Italy Author-Name: Brunilda Çuko Author-Workplace-Name: Department of Biotechnology, Faculty of Natural Sciences, Tirana, Albania Author-Name: Elektra Papakosta Author-Workplace-Name: Center of Agricultural Technologies Transfer, Vlora, Albania Author-Name: Claudio Depaoli Author-Workplace-Name: Laboratory of Micropropagation Predaia (Trento), Italy Author-Name: Maurizio Lambardi Author-Workplace-Name: Institute of BioEconomy, National Research Council (CNR/IBE), Sesto Fiorentino (Florence), Italy Author-Name: Efigjeni Kongjika Author-Workplace-Name: Section of Natural and Technical Sciences, Albanian Academy of Sciences, Tirana, Albania Title: Evaluation of ElecTIS bioreactor for the micropropagation of Malus sylvestris (L.) Mill., an important autochthonous species of Albania Abstract: Malus sylvestris (L.) Mill., an economically-important fruit tree, is native to Albania and in many parts of Europe. It is cultivated as an ornamental tree, while its fruits are collected for food and a source of antioxidant substances. It is included in The IUCN Red List of Threatened Species. For these reasons, it is very important to optimise a micropropagation protocol, in order to obtain great numbers of clonal plantlets for ex situ conservation and production purposes. A liquid culture in a temporary immersion system (TIS) is a recently-proposed system for large-scale in vitro plant propagation. In this study, lateral buds of M. sylvestris were inoculated in MS medium with BAP (1 mg/L) and NAA (0.1 mg/L). In order to avoid oxidative stress, different antioxidants were previously tested with the culture in a gelled medium, and the combination of ascorbic acid and citric acid (both at 100 mg/L) was selected for the following culture in TIS. Stabilised explants were then cultivated in ElecTIS, an innovative TIS bioreactor, and in a semisolid medium, after which the two culture systems were evaluated. Overall, the ElecTIS showed to be more effective for all the tested parameters. Keywords: apple, in vitro propagation, liquid culture, oxidative stress, temporary immersion system, TIS Journal: Horticultural Science Pages: 12-21 Volume: 48 Issue: 1 Year: 2021 DOI: 10.17221/69/2020-HORTSCI File-URL: http://hortsci.agriculturejournals.cz/doi/10.17221/69/2020-HORTSCI.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/hor-202101-0002.txt Handle: RePEc:caa:jnlhor:v:48:y:2021:i:1:id:69-2020-HORTSCI Template-Type: ReDIF-Article 1.0 Author-Name: Jacek Dyśko Author-Name: Stanisław Kaniszewski Author-Workplace-Name: Research Institute of Horticulture in Skierniewice, Skierniewice, Poland Title: Effects of LED and HPS lighting on the growth, seedling morphology and yield of greenhouse tomatoes and cucumbers Abstract: In an experiment with tomato and cucumber transplants, light units equipped with purpose-built LED arrays were compared with HPS sodium lamps with a power of 600 W and a voltage of 230 V. For both the LED and HPS lamps, the same PAR radiation level was used at the plant height, which was about 70-80 μmol/m2/s in conditions without daylight. The supplementary lighting was carried out for 8 to 24 hours and was switched on during the day when the solar radiation outside the greenhouse was lower than 200 W/m2. The supplementary lighting with the LED and HPS lamps did not have a significant impact on the growth of the tomato and cucumber seedlings and the fresh and dry mass of the tomato and cucumber plants. The plants grown without the additional artificial lighting were significantly smaller in height, had fewer leaves, a smaller spread and produced lower fresh and dry weights. The tomato and cucumber plants grown under the LED lamps had a higher chlorophyll index than those grown under the HPS lamps and without any lighting. The supplementary lighting with the LED lamps increased the early yield of the tomatoes compared to the HPS and control plants but has no effect on the early yield of the cucumbers. Both the LED and HPS lighting significantly increased the total and marketable yield of the tomatoes and cucumbers. Keywords: artificial lighting, transplants, plant growth, chlorophyll Journal: Horticultural Science Pages: 22-29 Volume: 48 Issue: 1 Year: 2021 DOI: 10.17221/4/2020-HORTSCI File-URL: http://hortsci.agriculturejournals.cz/doi/10.17221/4/2020-HORTSCI.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/hor-202101-0003.txt Handle: RePEc:caa:jnlhor:v:48:y:2021:i:1:id:4-2020-HORTSCI Template-Type: ReDIF-Article 1.0 Author-Name: Marzena Błażewicz-Woźniak Author-Name: Agnieszka Rybicka Author-Workplace-Name: Institute of Horticultural Production, Subdepartment of Plant Nutrition, Faculty of Horticulture and Landscape Architecture, University of Life Science in Lublin, Lublin, Poland Author-Name: Monika Fil Author-Workplace-Name: Institute of Horticultural Production, Subdepartment of Plant Nutrition, Faculty of Horticulture and Landscape Architecture, University of Life Science in Lublin, Lublin, Poland Title: Growth, decorative and nutritional values of ornamental cabbage (Brassica oleracea L.) in flowerbed conditions Abstract: Ornamental cabbages are cultivars of cabbages grown for decorative purposes due to the varied shape and colour of their internal leaves. The aim of the study was to determine the course of growth and to assess the decorative and nutritional value of two cultivars of ornamental cabbage ('Pigeon Red', 'Coral Prince') grown in a flowerbed along with annual plants: the French marigold (Tagetes patula nana L.) and flossflower (Ageratum houstonianum Mill.), using a pine bark mulch. The impact of the marigold and flossflower on the cabbage height and foliage changed with the plant growth. Cabbages growing without the proximity to the other species had the smallest diameter and formed the least leaves; and the plant's height was lower in September. The cabbage height, foliage and leaf colour were modified by the weather in the subsequent years of research. The proximity of the marigold or flossflower and mulching of the soil with bark did not affect the colour of the leaves. The nutritional value of the ornamental cabbage was high, and the content of the mineral components in the leaves depended largely on their colour. The coloured leaves were more abundant in nitrogen, phosphorus, potassium and magnesium, while the green leaves contained more calcium and sulfur, and slightly more dry matter. Keywords: intercropping, marigold, flossflower, mulching, chemical composition Journal: Horticultural Science Pages: 30-37 Volume: 48 Issue: 1 Year: 2021 DOI: 10.17221/21/2020-HORTSCI File-URL: http://hortsci.agriculturejournals.cz/doi/10.17221/21/2020-HORTSCI.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/hor-202101-0004.txt Handle: RePEc:caa:jnlhor:v:48:y:2021:i:1:id:21-2020-HORTSCI Template-Type: ReDIF-Article 1.0 Author-Name: Ángel M. Felicísimo Author-Workplace-Name: Departamento de Expresión Gráfica. Centro Universitario de Mérida, Universidad de Extremadura, Mérida, Spain Author-Name: Ignacio Armendáriz Author-Workplace-Name: Instituto Agropecuario Superior Andino (IASA), Sangolquí, Ecuador Author-Name: Virginia Alberdi Author-Workplace-Name: Departamento de Expresión Gráfica, Centro Universitario de Mérida, Universidad de Extremadura, Mérida, Spain Title: Modelling the potential effects of climate change in the distribution of Xylotrechus arvicola in Spain Abstract: Xylotrechus arvicola is an emerging grape pest that generates serious sanitary problems in vineyards and is currently expanding its range throughout Spain. The increasing prevalence of this pest in Spanish vineyards has been detected since 1990. In this study, the relationship between the climate and the actual distribution of the beetle was analysed, as well as how this distribution might change in the future according to several climate change models. The methodology was based on predictive models (SDM; species distribution modelling) using climate variables as explanatory factors, although the relationships were not necessarily causal. Maxent was used as the SDM method. The current climatic niche was calculated, and the actual potential distribution area was estimated. The relationships between the climate variables and the species probability of the presence were projected to various future climate change scenarios. The main conclusions reached were that climate change will favour the expansion of X. arvicola and that the potential infestation zones will be extended significantly. Although the results, because they were based on hypothetical climate frameworks that are under constant revision, were not conclusive, they should be taken into consideration when defining future strategies in the wine industry. Keywords: species distribution models, vineyard, pest mapping, maximum entropy Journal: Horticultural Science Pages: 38-46 Volume: 48 Issue: 1 Year: 2021 DOI: 10.17221/85/2019-HORTSCI File-URL: http://hortsci.agriculturejournals.cz/doi/10.17221/85/2019-HORTSCI.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/hor-202101-0005.txt Handle: RePEc:caa:jnlhor:v:48:y:2021:i:1:id:85-2019-HORTSCI Template-Type: ReDIF-Article 1.0 Author-Name: Ionela-Cătălina Guță Author-Name: Elena-Cocuța Buciumeanu Author-Workplace-Name: National Research and Development Institute for Biotechnology in Horticulture Ștefănești-Argeș, Ștefănești, Romania Title: Grapevine Pinot gris virus infecting grapevines in Romania - Short Communicaiton Abstract: Grapevine Pinot gris virus (GPGV) has been identified in many grape growing countries of the world since 2012. The aim of this work was to investigate the presence of GPGV on some accessions collected from a germplasm collection, in addition to the propagation material and clonal selection samples. During 2019-2020, a total of 199 samples have been analysed by a double antibody sandwich - enzyme-linked immunosorbent assay (DAS-ELISA) for the presence of GPGV, Grapevine fanleaf virus (GFLV), Grapevine leafroll-associated virus-1+3 (GLRaV-1+3) and Grapevine fleck virus (GFkV). Among them, 107 samples (53.76%) showed a GPGV-infection, associated with or without symptoms on the leaves (deformations, chlorosis, mosaic, wrinkles) or stunting plants. The distribution of infected varieties showed a high rate of infection in old varieties (37.38%), followed by clones (32.71%), rootstocks (11.21%), clonal selections (9.35%) and new varieties (9.35%). The tests revealed the association of GPGV with GFkV (5 cases) and GLRaV-1+3 (2 cases). GPGV should be included in the rules of grapevine certification schemes for the production of virus-free mother plants. Keywords: GPGV, incidence, symptoms, DAS-ELISA, grapevine Journal: Horticultural Science Pages: 47-50 Volume: 48 Issue: 1 Year: 2021 DOI: 10.17221/65/2020-HORTSCI File-URL: http://hortsci.agriculturejournals.cz/doi/10.17221/65/2020-HORTSCI.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/hor-202101-0006.txt Handle: RePEc:caa:jnlhor:v:48:y:2021:i:1:id:65-2020-HORTSCI