Template-Type: ReDIF-Article 1.0 Author-Name: J. Lanauskas Author-Workplace-Name: Institute of Horticulture, Lithuanian Research Centre for Agriculture and Forestry, Babtai, Lithuania Author-Name: N. Uselis Author-Workplace-Name: Institute of Horticulture, Lithuanian Research Centre for Agriculture and Forestry, Babtai, Lithuania Author-Name: D. Kviklys Author-Workplace-Name: Institute of Horticulture, Lithuanian Research Centre for Agriculture and Forestry, Babtai, Lithuania Author-Name: N. Kvikliené Author-Workplace-Name: Institute of Horticulture, Lithuanian Research Centre for Agriculture and Forestry, Babtai, Lithuania Author-Name: L. Buskiené Author-Workplace-Name: Institute of Horticulture, Lithuanian Research Centre for Agriculture and Forestry, Babtai, Lithuania Title: Rootstock effect on the performance of sweet cherry cv. Lapins Abstract: Twelve clonal rootstocks of sweet cherry grafted with the cv. Lapins were tested. Each graft combination included 18 trees divided into six randomized blocks. The trees were spaced at 5 × 3 m and trained as spindles. Tree vigour, yield, fruit size, fruit quality and yield efficiency were evaluated for eleven subsequent years. According to trunk diameter, the most vigorous rootstocks were Gi 497/8, Gi 154/7, Gisela 4 and P-HL-A; 32-41% larger compared with the standard Gisela 5. The highest cumulative yield per tree and yield efficiency were recorded on the rootstocks Gi 154/7 and Gisela 4. The lowest yield was recorded on Damil, Gi 209/1, Gi 195/20, Gi 148/8 and Gisela 5. P-HL-A and Gi 523/02 gave the largest fruit weights and Gi 209/1, Gisela 5 and Gi 195/20 the smallest. Moderate tree die-back was recorded on Gi 154/7 and P-HL-A, low tree mortality on Gisela 4 and Damil. All the trees survived on Gi 497/8. Gisela 4 and Gi 154/7 produced some root suckers. Keywords: trunk diameter, yield efficiency, fruit weight, tree mortality, root suckers Journal: Horticultural Science Pages: 55-60 Volume: 39 Issue: 2 Year: 2012 DOI: 10.17221/50/2011-HORTSCI File-URL: http://hortsci.agriculturejournals.cz/doi/10.17221/50/2011-HORTSCI.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/hor-201202-0001.txt Handle: RePEc:caa:jnlhor:v:39:y:2012:i:2:id:50-2011-HORTSCI Template-Type: ReDIF-Article 1.0 Author-Name: I. Angin Author-Workplace-Name: Department of Agricultural Structures and Irrigation, Faculty of Agriculture, Atatürk University, Erzurum, Turkey Author-Name: R. Aslantas Author-Workplace-Name: Department of Horticulture, Faculty of Agriculture, Atatürk University, Erzurum, Turkey Author-Name: M. Kose Author-Workplace-Name: Eastern Anatolia Forestry Research, Erzurum, Turkey Author-Name: H. Karakurt Author-Workplace-Name: Department of Horticulture, Faculty of Agriculture, Atatürk University, Erzurum, Turkey Author-Name: G. Ozkan Author-Workplace-Name: Department of Horticulture, Faculty of Agriculture, Atatürk University, Erzurum, Turkey Title: Changes in chemical properties of soil and sour cherry as a result of sewage sludge application Abstract: This study, aimed at assessment of the effects of different sewage sludge application rates on heavy metal accumulation in the soil and in sour cherry leaves was carried out in the years 2005-2007. The rates applied were 0.0, 2.5, 5.0, 7.5, 10.0 and 12.5 kg of dry matter per tree. Eighteen uniform one-year-old Kütahya sour cherry trees on Prunus mahaleb rootstock were used. Sewage sludge not only improved soil chemical properties but also resulted in an increase of nutrient content in cherry leaves. Sewage sludge application increased heavy metal content of soils. However, this increase did not exceed the critical values and was not reflected in the leaf contents of heavy metals. The most effective application rate was 7.5 kg per tree. Studies should be continued to evaluate the effects of sewage sludge on vegetative and generative growth, yield and fruit quality parameters. Keywords: biosolid, Prunus cerasus, soil chemical characteristics, leaf nutrient content, heavy metals Journal: Horticultural Science Pages: 61-66 Volume: 39 Issue: 2 Year: 2012 DOI: 10.17221/4/2011-HORTSCI File-URL: http://hortsci.agriculturejournals.cz/doi/10.17221/4/2011-HORTSCI.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/hor-201202-0002.txt Handle: RePEc:caa:jnlhor:v:39:y:2012:i:2:id:4-2011-HORTSCI Template-Type: ReDIF-Article 1.0 Author-Name: Ž. Karaklajić-Stajić Author-Workplace-Name: Fruit Research Institute, Čačak, Serbia Author-Name: I.S. Glišić Author-Workplace-Name: Fruit Research Institute, Čačak, Serbia Author-Name: Dj. Ružić Author-Workplace-Name: Fruit Research Institute, Čačak, Serbia Author-Name: T. Vujović Author-Workplace-Name: Fruit Research Institute, Čačak, Serbia Author-Name: M. Pešaković Author-Workplace-Name: Fruit Research Institute, Čačak, Serbia Title: Microelements content in leaves of raspberry cv. Willamette as affected by foliar nutrition and substrates Abstract: Raspberry (Rubus idaeus L.) cultivar Willamette has long been the most commonly grown raspberry cultivar in Serbia, which is owing to high adaptability of the cultivar to respective agro-environmental conditions. Massive dieback of full bearing plantings is a major problem in raspberry growing hence quality planting material is a must when establishing new raspberry plantings. The study was conducted under protected conditions (in screenhouse) on plants obtained by micropropagation in vitro. In order to achieve optimal vegetative potential, plants were grown for two consecutive years (2004-2005) on two substrates (Steckmedium and Seedling) using three foliar fertilizers (Wuxal, Murtonik and Ferticare). The study revealed optimal vegetative growth in plants studied, excess manganese (150.60-214.52 mg/g), optimum iron content (94.00-123.50 mg/g), and zinc (28.60-31.00 mg/g) and copper (3.10-4.00 mg/g) deficiencies, based on the referent values of microelements content. The assessment of nutritional status of plants by the DOP index suggested significant differences in microelements imbalance when different foliar fertilizers and substrates are applied. Keywords: Rubus idaeus L., foliar fertilizer, growing medium, nutrients, DOP index Journal: Horticultural Science Pages: 67-73 Volume: 39 Issue: 2 Year: 2012 DOI: 10.17221/80/2011-HORTSCI File-URL: http://hortsci.agriculturejournals.cz/doi/10.17221/80/2011-HORTSCI.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/hor-201202-0003.txt Handle: RePEc:caa:jnlhor:v:39:y:2012:i:2:id:80-2011-HORTSCI Template-Type: ReDIF-Article 1.0 Author-Name: S. Legarrea Author-Workplace-Name: Departamento de Protección Vegetal, Instituto de Ciencias Agrarias - CSIC, Madrid, Spain Author-Name: B.M. Diaz Author-Workplace-Name: Departamento de Protección Vegetal, Instituto de Ciencias Agrarias - CSIC, Madrid, Spain Author-Name: M. Plaza Author-Workplace-Name: Departamento de Protección Vegetal, Instituto de Ciencias Agrarias - CSIC, Madrid, Spain Author-Name: L. Barrios Author-Workplace-Name: Centro Tecnología Informática - CSIC, Madrid, Spain Author-Name: I. Morales Author-Workplace-Name: Protección de Cultivos, E.T.S.I. Agrónomos (UPM), Madrid, Spain Author-Name: E. Viñuela Author-Workplace-Name: Protección de Cultivos, E.T.S.I. Agrónomos (UPM), Madrid, Spain Author-Name: A. Fereres Author-Workplace-Name: Departamento de Protección Vegetal, Instituto de Ciencias Agrarias - CSIC, Madrid, Spain Title: Diminished UV radiation reduces the spread and population density of Macrosiphum euphorbiae (Thomas) [Hemiptera: Aphididae] in lettuce crops Abstract: UV-absorbing covers reduce the incidence of injurious insect pests and viruses in protected crops. In the present study, the effect of a UV-absorbing net (Bionet) on the spatio-temporal dynamics of the potato aphid on lettuce plants was evaluated. A field experiment was conducted during three seasons in two identical tunnels divided in four plots. A set of lettuce plants were artificially infested with Macrosiphum euphorbiae adults and the population was estimated by counting aphids on every plant over 7 to 9 weeks. Insect population grew exponentially but a significantly lower aphid density was present on plants grown under the UV-absorbing cover compared to a standard 50 mesh net. Similarly, in laboratory conditions, life table parameters were significantly reduced under the Bionet. Moreover, SADIE analysis showed that the spatial distribution of aphids was effectively limited under the UV-absorbing nets. Our results indicate that UV-absorbing nets should be considered as an important component of lettuce indoor cropping systems preventing pesticide applications and reducing the risk of spread of aphid-borne virus diseases. Keywords: potato aphid, UV-absorbing net, IPM, SADIE, life table parameters Journal: Horticultural Science Pages: 74-80 Volume: 39 Issue: 2 Year: 2012 DOI: 10.17221/79/2011-HORTSCI File-URL: http://hortsci.agriculturejournals.cz/doi/10.17221/79/2011-HORTSCI.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/hor-201202-0004.txt Handle: RePEc:caa:jnlhor:v:39:y:2012:i:2:id:79-2011-HORTSCI Template-Type: ReDIF-Article 1.0 Author-Name: A. Karkanis Author-Workplace-Name: Department of Agriculture, Crop Production and Rural Environment, University of Thessaly, Volos, Greece Author-Name: D. Bilalis Author-Workplace-Name: Department of Crop Science, Agricultural University of Athens, Athens, Greece Author-Name: A. Efthimiadou Author-Workplace-Name: Open University of Cyprus, Nicosia, Cyprus Author-Name: N. Katsenios Author-Workplace-Name: Department of Crop Science, Agricultural University of Athens, Athens, Greece Title: Comparison between conventional and organic weed management: growth and yield of leek (Allium porrum L.) Abstract: Leek is a weak competitor against weeds. A field experiment was conducted to determine the effects of herbicides and mulching on weed flora, growth and yield of a leek crop. A randomized complete block design was employed with five replicates per treatment (control, mulching with barley straw, post-transplant application of the herbicide oxyfluorfen at 360 g a.i./ha and pre-transplant application of pendimethalin at 1,650 g a.i./ha). The order of weed sensitivity to mulches was black nightshade (72-85%), venice mallow (80%) > redroot pigweed (70-74%), barnyardgrass (67-77%) > jimsonweed (65%) > common purslane (42-45%). Oxyfluorfen had the highest control of jimsonweed, venice mallow and common purslane. There were no significant effects of the pendimethalin treatment on weed control ratings of jimsonweed, venice mallow and field bindweed. Injury symptoms (small white spots) appeared on leek leaves exposed to oxyfluorfen. The highest yield of leek was recorded with the oxyfluorfen application. Our results indicate that mulching and oxyfluorfen application provides satisfactory control of weeds. The use of mulching is an option for the weed management in organic leek crop. Keywords: herbicides, mulching with barley straw, injury symptoms, light interception, yield Journal: Horticultural Science Pages: 81-88 Volume: 39 Issue: 2 Year: 2012 DOI: 10.17221/162/2011-HORTSCI File-URL: http://hortsci.agriculturejournals.cz/doi/10.17221/162/2011-HORTSCI.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/hor-201202-0005.txt Handle: RePEc:caa:jnlhor:v:39:y:2012:i:2:id:162-2011-HORTSCI Template-Type: ReDIF-Article 1.0 Author-Name: T. Kopta Author-Workplace-Name: Department of Vegetable Science and Floriculture, Faculty of Horticulture, Mendel University in Brno, Lednice, Czech Republic Author-Name: R. Pokluda Author-Workplace-Name: Department of Vegetable Science and Floriculture, Faculty of Horticulture, Mendel University in Brno, Lednice, Czech Republic Author-Name: V. Psota Author-Workplace-Name: Department of Zoology, Fisheries, Hydrobiology and Apiculture, Faculty of Agriculture, Mendel University in Brno, Brno, Czech Republic Title: Attractiveness of flowering plants for natural enemies Abstract: The set of 7 flowering plant species (Anethum graveolens, Calendula officinalis, Centaurea cyanus, Fagopyrum esculentum, Foeniculum vulgare, Tagetes patula and Vicia faba) was compared for their attractiveness to natural enemies such as ladybeetles (Coccinellidae), hoverflies (Syrphidae), ichneumon wasps (Ichneumonidae) and predatory bugs (Orius spp.) during the years 2008-2010. The trial was held in an organic open field located at the Faculty of Horticulture of Mendel University in Brno, Lednice, Czech Republic. The software Canoco (RDA analysis) was used in order to see the relations between plant and insect communities. Flowering plants A. graveolens, C. cyanus, C. officinalis, F. vulgare and F. esculentum were found to be the most attractive for the evaluated beneficial insects. The most abundant beneficial insects were hoverflies (562008, 1542009, 13242010) and ladybeetles (652008, 1162009, 5112010) followed by predatory bugs (142008, 472009, 1382010) and ichneumon wasps (202008, 142009, 822010). Keywords: flowers, beneficial insects, visiting, biodiversity Journal: Horticultural Science Pages: 89-96 Volume: 39 Issue: 2 Year: 2012 DOI: 10.17221/26/2011-HORTSCI File-URL: http://hortsci.agriculturejournals.cz/doi/10.17221/26/2011-HORTSCI.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/hor-201202-0006.txt Handle: RePEc:caa:jnlhor:v:39:y:2012:i:2:id:26-2011-HORTSCI Template-Type: ReDIF-Article 1.0 Author-Name: Xiaoqing Guo Author-Workplace-Name: Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China Author-Name: Yansu Li Author-Workplace-Name: Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China Author-Name: Xianchang Yu Author-Workplace-Name: Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China Title: Promotive effects of 5-aminolevulinic acid on photosynthesis and chlorophyll fluorescence of tomato seedlings under suboptimal low temperature and suboptimal photon flux density stress - Short communication Abstract: Effects of 5-aminolevulinic acid (ALA) on photosynthetic characteristics of tomato grown under suboptimal conditions were investigated to evaluate the potential value of ALA spraying in vegetables. The net photosynthetic rate (Pn), stomatal conductance (Gs), maximum quantum efficiency of photosystem II (Fv/Fm), coefficient of photochemical quenching (qP), antenna transformation efficiency (Fv'/Fm'), light compensation point (LCP), CO2 compensation point (CCP) and chlorophyll (chl) contents of tomato stressed by suboptimal temperature (17°C/12°C) and suboptimal photon flux density (250 μmol/m2s) were decreased, but intercellular CO2 concentration (Ci) was increased distinctly. Compared with the parameters of tomato pretreated with water, Pn, Gs, Fv/Fm, qP, Fv'/Fm' and chl content of tomato pretreated with ALA were increased, and the Ci, LCP and CCP were decreased obviously. These results indicate that the inhibition of photosynthesis induced by suboptimal stress can be alleviated by ALA spraying. Keywords: protected culture, Solanum lycopersicum, environmental stress, chemical substance, carbon assimilation Journal: Horticultural Science Pages: 97-99 Volume: 39 Issue: 2 Year: 2012 DOI: 10.17221/122/2011-HORTSCI File-URL: http://hortsci.agriculturejournals.cz/doi/10.17221/122/2011-HORTSCI.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/hor-201202-0007.txt Handle: RePEc:caa:jnlhor:v:39:y:2012:i:2:id:122-2011-HORTSCI Template-Type: ReDIF-Article 1.0 Author-Name: M. Valšíková Title: An Obituary Notice Abstract: Karel Kopec, horticultural scientist; ⃰ March 9, 1929 - † April 9, 2012 Journal: Horticultural Science Pages: 100 Volume: 39 Issue: 2 Year: 2012 DOI: 10.17221/5909-HORTSCI File-URL: http://hortsci.agriculturejournals.cz/doi/10.17221/5909-HORTSCI.html File-Format: text/html Handle: RePEc:caa:jnlhor:v:39:y:2012:i:2:id:5909-HORTSCI