Template-Type: ReDIF-Article 1.0 Author-Name: L.F. Pérez-Romero Author-Workplace-Name: IFAPA Centro "Las Torres-Tomejil", Sevilla, Spain Author-Name: F.T. Arroyo Author-Workplace-Name: IFAPA Centro "Las Torres-Tomejil", Sevilla, Spain Author-Name: C. Santamaría Author-Workplace-Name: IFAPA Centro "Las Torres-Tomejil", Sevilla, Spain Author-Name: J.F. Herencia Author-Workplace-Name: IFAPA Centro "Las Torres-Tomejil", Sevilla, Spain Author-Name: A. Daza Author-Workplace-Name: IFAPA Centro "Las Torres-Tomejil", Sevilla, Spain Title: Growth, phenology and fruit set of Prunus armeniaca L. (cv. Ninfa) grafted on two rootstocks in organic and conventional management Abstract: Tree growth, flowering, yield and fruit quality of Prunus armeniaca L. cv. Ninfa grafted on peach cv. Nemaguard [Prunus persica (L.) Batsch] and cv. Real Fino apricot (Prunus armeniaca L.) as rootstocks were analysed in experimental orchard under organic and conventional management systems. The study was performed during 2012-2013 in the province of Seville (SW Spain). Cv. Nemaguard rootstock had larger cross-sectional areas of the trunk (TCSA), higher yields, began flowering earlier and lasted 2-4 days more. The organic management resulted in lower values of TCSA and yield, and flowering was delayed and shortened. Overall, cv. Nemaguard rootstock produced slightly larger fruit in size and heavier weight. In contrast, apricots from cv. Real Fino had slightly higher soluble solid concentration. Acidity and maturity index were similar, while colour and firmness showed high variability. In general, the organic system produced fruit with soluble solid concentration somewhat higher. In summary, in both types of management cv. Nemaguard worked better than cv. Real Fino in terms of tree vigour, fruit yield and bloom period. Keywords: apricot, fruit quality, yield, tree growth, flowering Journal: Horticultural Science Pages: 101-106 Volume: 41 Issue: 3 Year: 2014 DOI: 10.17221/46/2014-HORTSCI File-URL: http://hortsci.agriculturejournals.cz/doi/10.17221/46/2014-HORTSCI.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/hor-201403-0001.txt Handle: RePEc:caa:jnlhor:v:41:y:2014:i:3:id:46-2014-HORTSCI Template-Type: ReDIF-Article 1.0 Author-Name: E. Chroboková Author-Workplace-Name: Research and Breeding Institute of Pomology Holovousy Ltd., Holovousy, Czech Republic Author-Name: J. Suchá Author-Workplace-Name: Research and Breeding Institute of Pomology Holovousy Ltd., Holovousy, Czech Republic Author-Name: H. Ludvíková Author-Workplace-Name: Research and Breeding Institute of Pomology Holovousy Ltd., Holovousy, Czech Republic Author-Name: P. Lauterer Author-Workplace-Name: Moravian Museum, Department of Entomology, Brno, Czech Republic Title: Occurrence of potential vectors of phytoplasma in pear orchards with different plantation management Abstract: During 2009-2011, regular captures of Cacopsylla pyri, C. pyrisuga and C. pyricola in four pear orchards (one conventional orchard, one integrated pest management (IPM) orchard, two organic orchards) were conducted in the Czech Republic. Polymerase chain reaction (PCR) tests were performed on psyllids captured from the orchards with the highest occurrence of these insects. The DNA extracted from pairs of psyllid individuals was analysed by nested PCR (R16F2n/R2-fU5/rU3) and restriction fragment length polymorphism method (RFLP) (RsaI, BfmI). Two C. pyri individuals captured on 11/05/2011 in the IPM orchard tested positive for Ca. P. pyri. Ca. P. pyri presence was confirmed in 8 out of the 9 Cacopsylla samples tested by subsequent nested PCR (P1/P7- f01/r01). In 2010 a higher amount of C. pyri was captured in the conventional orchard during June/July and in the IPM orchard during March, May, June and July. In 2010 and 2011 no or lower psyllids presence was detected in the organic orchard No. 1 and in the organic orchard No. 2. It is important to control pear decline by controlling the vector of the disease. Keywords: Cacopsylla pyri, Cacopsylla pyrisuga, nestedPCR, RFLP, Candidatus Phytoplasma pyri Journal: Horticultural Science Pages: 107-113 Volume: 41 Issue: 3 Year: 2014 DOI: 10.17221/77/2014-HORTSCI File-URL: http://hortsci.agriculturejournals.cz/doi/10.17221/77/2014-HORTSCI.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/hor-201403-0002.txt Handle: RePEc:caa:jnlhor:v:41:y:2014:i:3:id:77-2014-HORTSCI Template-Type: ReDIF-Article 1.0 Author-Name: G. Tsaniklidis Author-Workplace-Name: Laboratory of Plant Physiology and Morphology, Agricultural University of Athens, Athens, Greece Author-Name: N. Nikoloudakis Author-Workplace-Name: Vegetative Propagation Material Control Station, Hellenic Ministry of Rural Development and Food, Athens, Greece Author-Name: C. Delis Author-Workplace-Name: Department of Agricultural Technology, Technological Institute of Kalamata, Kalamata, Greece Author-Name: G. Aivalakis Author-Workplace-Name: Laboratory of Plant Physiology and Morphology, Agricultural University of Athens, Athens, Greece Title: Ascorbate metabolism in vegetative and reproductive organs of "cherry" tomato Abstract: Ascorbate metabolism is an essential procedure for all plant cells that plays important roles in several physiological processes such as plant development and reactive oxygen species detoxification. To shed more light on ascorbate metabolism in certain organs of tomato plants, we performed a detailed compartmentalized analysis of ascorbate concentration, ascorbate peroxidase/dehydroascorbate reductase enzyme activities and transcript accumulation of genes related to ascorbate metabolism. Our results showed higher level of ascorbate concentration and ascorbate peroxidase and dehydroascorbate reductase activities in young leaves and shoot tips, while min. ascorbate concentration was recorded in root tips. The study of the expression of the genes involved in ascorbate metabolism revealed that several genesfollowed similar patterns. However, APX3 gene expression was considerably higher in reproductive organs, while plastidialAPX6 and DHAR2genes transcripts were barely detectable in root tips. Organ-specific expression of genes involved in ascorbate metabolism suggests that different isoenzymes have a specific role in regulation of the redox status of some of the organs in tomato plants. Keywords: ascorbic acid, ascorbate peroxidase, dehydroascorbate reductase, monodehydroascorbate reductase, glutathione reductase Journal: Horticultural Science Pages: 114-121 Volume: 41 Issue: 3 Year: 2014 DOI: 10.17221/228/2013-HORTSCI File-URL: http://hortsci.agriculturejournals.cz/doi/10.17221/228/2013-HORTSCI.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/hor-201403-0003.txt Handle: RePEc:caa:jnlhor:v:41:y:2014:i:3:id:228-2013-HORTSCI Template-Type: ReDIF-Article 1.0 Author-Name: M.G. Aćimović Author-Workplace-Name: Department of Agrotechnology and Agroecology, Faculty of Agriculture, University in Belgrade, Serbia Author-Name: S.I. Oljača Author-Workplace-Name: Department of Agrotechnology and Agroecology, Faculty of Agriculture, University in Belgrade, Serbia Author-Name: V.V. Tešević Author-Workplace-Name: Department of Agrotechnology and Agroecology, Faculty of Agriculture, University in Belgrade, Serbia Author-Name: M.M. Todosijević Author-Workplace-Name: Department of Organic Chemistry, Faculty of Chemistry, University in Belgrade, Serbia Author-Name: J.N. Djisalov Author-Workplace-Name: Institute of Food Technology, Novi Sad, Serbia Title: Evaluation of caraway essential oil from different production areas of Serbia Abstract: Caraway fruits contain essential oils that give caraway its characteristic aroma. This paper evaluates quantity and composition of the essential oil from the annual caraway grown in different production areas of Serbia. Experiments were conducted in three production areas: Banat, Bačka and Srem, during two years. The fruits contained 3.95% of oil on average. The highest content of essential oil was obtained in the production area of Banat, a part of Serbia where environmental conditions are very favourable for cultivation of medicinal plants. Weather conditions have not a significant influence on the content of essential oil in caraway fruits. However, weather conditions as well as production region had a great influence on seed yield and essential oil yield. There were 22 compounds determined in caraway essential oil by GC/MS. The main components were carvone and limonene, whose mixture constituted from 97.69 to 98.62% of total oil composition. Carvone/limonene ratio was 0.58% on average, therefore, it can be concluded that this annual caraway belongs to limonene chemotype. Keywords: Carum carvi var. annuum, essential oil content, essential oil composition, carvone/limonene ratio Journal: Horticultural Science Pages: 122-130 Volume: 41 Issue: 3 Year: 2014 DOI: 10.17221/248/2013-HORTSCI File-URL: http://hortsci.agriculturejournals.cz/doi/10.17221/248/2013-HORTSCI.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/hor-201403-0004.txt Handle: RePEc:caa:jnlhor:v:41:y:2014:i:3:id:248-2013-HORTSCI Template-Type: ReDIF-Article 1.0 Author-Name: R. Karkleliené Author-Workplace-Name: Institute of Horticulture, Lithuanian Research Centre for Agriculture and Forestry, Babtai, Lithuania Author-Name: E. Dambrauskiené Author-Workplace-Name: Institute of Horticulture, Lithuanian Research Centre for Agriculture and Forestry, Babtai, Lithuania Author-Name: D. Juškevičiené Author-Workplace-Name: Institute of Horticulture, Lithuanian Research Centre for Agriculture and Forestry, Babtai, Lithuania Author-Name: A. Radzevičius Author-Workplace-Name: Institute of Horticulture, Lithuanian Research Centre for Agriculture and Forestry, Babtai, Lithuania Author-Name: M. Rubinskiené Author-Workplace-Name: Institute of Horticulture, Lithuanian Research Centre for Agriculture and Forestry, Babtai, Lithuania Author-Name: P. Viškelis Author-Workplace-Name: Institute of Horticulture, Lithuanian Research Centre for Agriculture and Forestry, Babtai, Lithuania Title: Productivity and nutritional value of dill and parsley Abstract: Investigations of productivity and biochemical valueof dill cvs Moravan, Szmaragd, Common, Mammoth and parsley cvs Moss Curled, Astra, Festival, Gigant d'Italiawere estimated. Dill cv. Commonwas the highest, 62.3 cm, and the most productive, up to 29.1 t/ha. The analyses of biochemical compounds showed that cv. Szmaragd accumulated significantly highest amount of the dry matter (14.7%) and total sugar (3.07%). Dill cvs Moravan and Common were close as to the ability for chlorophyll accumulation (2.04-2.02 mg/g). The highest amount of essential oils was estimated in the cvs Szmaragd and Mammoth, 0.17 and 0.18%, respectively. Investigations of parsley showed that even-leaved parsley cv. Gigant d'Italia formed rosette with higher leaf up to 56.7 cm, whereas cv. Festival was the most productive - 36.0 t/ha. Parsley cv. Moss Curled accumulated the highest amount of dry matter (19.4%) and ascorbic acid (162.8 mg/100 g). Cv. Astra accumulated the highest amount of essential oils (0.10%) and chlorophyll (1.44 mg/g). Keywords: Anethum graveolens, Petroselinum crispum, cultivar, yield, leafy vegetables Journal: Horticultural Science Pages: 131-137 Volume: 41 Issue: 3 Year: 2014 DOI: 10.17221/240/2013-HORTSCI File-URL: http://hortsci.agriculturejournals.cz/doi/10.17221/240/2013-HORTSCI.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/hor-201403-0005.txt Handle: RePEc:caa:jnlhor:v:41:y:2014:i:3:id:240-2013-HORTSCI Template-Type: ReDIF-Article 1.0 Author-Name: C. XU Author-Workplace-Name: Texas A&M AgriLife Research Center, Vegetable and Fruit Improvement Center, Department of Horticultural Sciences, Texas A&M University, USA Author-Name: D.I. LESKOVAR Author-Workplace-Name: Texas A&M AgriLife Research Center, Vegetable and Fruit Improvement Center, Department of Horticultural Sciences, Texas A&M University, USA Title: Growth, physiology and yield responses of cabbage to deficit irrigation Abstract: Field experiments were conducted in two seasons to investigate growth, physiology and yield responses of cabbage (Brassica oleracea L. cvs Pennant and Rio Grande) to deficit irrigation. In 2012 season, 50% of crop evapotranspiration (ETc) irrigation temporarily decreased plant size, reduced leaf area, fresh weight, relative water content, specific leaf area and gas exchange during late development, and decreased head fresh weight, size, marketable and total yield. Deficit irrigation at 75% ETc had little influence on plant growth and physiology, but it still reduced both marketable and total yield. In 2013 season, 75% ETc irrigation had little influence on plant growth, leaf characteristics, photosynthetic rate, head fresh weight and size, but it temporarily increased chlorophyll and carotenoid content, and decreased stomata conductance, transpiration, and marketable yield. Pennant, the green-head cultivar, had higher photosynthetic rate, head fresh weight, marketable and total yield than the red-head cultivar Rio Grande. In both seasons, deficit irrigations did not influence cabbage head dry weight, indicating that most yield reduction under deficit irrigations is related to water content. Keywords: pigment, photosynthesis, relative water content, specific leaf area Journal: Horticultural Science Pages: 138-146 Volume: 41 Issue: 3 Year: 2014 DOI: 10.17221/208/2013-HORTSCI File-URL: http://hortsci.agriculturejournals.cz/doi/10.17221/208/2013-HORTSCI.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/hor-201403-0006.txt Handle: RePEc:caa:jnlhor:v:41:y:2014:i:3:id:208-2013-HORTSCI Template-Type: ReDIF-Article 1.0 Author-Name: J. Karvonen Author-Workplace-Name: Department of Agricultural Sciences, Faculty of Agriculture and Forestry, University of Helsinki, Helsinki, Finland Title: Vitis cv. Zilga is a vine for the northern temperate climate - Short communication Abstract: Of the grapevines grown in the Nordic countries, cv. Zilga, bred in Latvia, has proven to be very winter resistant and fast-maturing, and produces abundant harvests. In Finland, it is grown as horticultural and agricultural plant unprotected on open land even at 63 degrees latitude. In Southern Finland (60°24'10''N, 25°01'45''E), the growth cycle of cv. Zilga from bud break to harvest lasted 116 days and to leaf fall 125 days. At the beginning of the harvest, the total sugar content was 19°Bx. Tracking the phenology of the growth cycle and the environmental conditions of the growth site shows that cv. Zilga is well placed to make use of the high ambient temperatures and high solar radiation energy of Northern Europe in May, June, July and August. Keywords: Nordic wine growing, soil temperature, short growing season, cool climate Journal: Horticultural Science Pages: 147-151 Volume: 41 Issue: 3 Year: 2014 DOI: 10.17221/17/2014-HORTSCI File-URL: http://hortsci.agriculturejournals.cz/doi/10.17221/17/2014-HORTSCI.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/hor-201403-0007.txt Handle: RePEc:caa:jnlhor:v:41:y:2014:i:3:id:17-2014-HORTSCI