Template-Type: ReDIF-Article 1.0 Author-Name: J. Sedlák Author-Workplace-Name: Research and Breeding Institute of Pomology Holovousy Ltd., Holovousy, Czech Republic Author-Name: F. Paprštein Author-Workplace-Name: Research and Breeding Institute of Pomology Holovousy Ltd., Holovousy, Czech Republic Title: In vitro propagation of blue honeysuckle Abstract: We have developed a rapid shoot multiplication procedure for in vitro propagation of blue honeysuckle (Lonicera kamtschatica [Sevast.] Pojark). Shoot tips of two genotypes 20/1 and Altaj were successfully established in vitro and micropropagated on the Murashige and Skoog (MS) based media containing different concentrations of 6-benzylaminopurine (BAP). Multiplication rates varied depending on the genotype and concentration of BAP. The highest multiplication rate was obtained for the genotype 20/1 that produced 10.5 ± 0.7 shoots (longer than 10 mm) on the MS medium containing 2 mg/l BAP. The lowest multiplication rate was obtained for Altaj producing only 1.6 ± 0.1 shoots on MS medium containing 4 mg/l BAP. Moreover, in vitro rooting on the modified MS medium supplemented with 2.5 mg/l indole-3-butyric acid (IBA) was reported. Rooted shoots were transferred to the greenhouse for further evaluation. Keywords: Lonicera, micropropagation, culture initiation, multiplication, 6-benzylaminopurine Journal: Horticultural Science Pages: 129-131 Volume: 34 Issue: 4 Year: 2007 DOI: 10.17221/1871-HORTSCI File-URL: http://hortsci.agriculturejournals.cz/doi/10.17221/1871-HORTSCI.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/hor-200704-0001.txt Handle: RePEc:caa:jnlhor:v:34:y:2007:i:4:id:1871-HORTSCI Template-Type: ReDIF-Article 1.0 Author-Name: K. Hamouz Author-Workplace-Name: Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic Author-Name: J. Lachman Author-Workplace-Name: Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic Author-Name: J. Čepl Author-Workplace-Name: Potato Research Institute Havlíčkův Brod, Czech Republic Author-Name: P. Dvořák Author-Workplace-Name: Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic Author-Name: V. Pivec Author-Workplace-Name: Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic Author-Name: M. Prášilová Author-Workplace-Name: Faculty of Economics and Management, Czech University of Life Sciences Prague, Prague, Czech Republic Title: Site conditions and genotype influence polyphenol content in potatoes Abstract: In the years 2005 and 2006 the effect of site conditions, yellow and purple fleshed varieties and mineral fertilization on the content of total polyphenols (TP) in potato tubers was investigated. In both years significantly the highest TP content (by 5.7 to 56.3% higher than in other localities) was determined at the Stachy locality; we ascribe it to apparently lower temperatures in the vegetation period at this locality of higher altitude. In the purple flesh Valfi variety TP content higher by 74 to 141% was recorded in average of both years, in comparison to yellow flesh varieties. In the group of eight yellow flesh varieties the highest TP content was recorded in the Ditta variety; it was higher by 38, 29 and 24% in comparison with Saturna, Agria and Asterix varieties. TP content was not significantly affected by fertilization with mineral fertilizers. Keywords: polyphenol, potato, variety, environmental conditions, fertilization Journal: Horticultural Science Pages: 132-137 Volume: 34 Issue: 4 Year: 2007 DOI: 10.17221/1894-HORTSCI File-URL: http://hortsci.agriculturejournals.cz/doi/10.17221/1894-HORTSCI.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/hor-200704-0002.txt Handle: RePEc:caa:jnlhor:v:34:y:2007:i:4:id:1894-HORTSCI Template-Type: ReDIF-Article 1.0 Author-Name: V. Paganová Author-Workplace-Name: Faculty of Horticulture and Landscape Engineering, Slovak University of Agriculture in Nitra, Nitra, Slovakia Title: Ecology and distribution of Sorbus torminalis (L.) Crantz. in Slovakia Abstract: Wild service tree belongs among rare woody plants tolerant to higher temperatures and low soil humidity. There are available data from analyses of 34 wild service tree localities in Slovakia. The majority of analyzed localities (70%) were on south-exposed stands (SE, S, SW); 97% of these were in altitudes up to 600 m. Wild service tree prefers biotopes of the oak-hornbeam forests. The highest frequency of this woody plant was found in group of forest site types Fageto-Quercetum. According to altitudinal vegetation stages, the majority of stands (85%) were in the 3rd and 2nd vegetation stage, where potential evapotranspiration is higher than the sum of precipitation. From March to September the water deficit is approximately 100-150 mm. The most frequent are stands with mountain climate (62%) with prevalence of moderately warm (38%) and warm (15%) climate. Wild service tree grows mainly on soils with favourable physical characteristics and adsorbing complex (65% of stands). The soils are fertile and well supplied with nutrients (Luvisols, Cambisols). Some localities (35%) have soils rich in minerals; however, their soil chemistry is one-sided, so they are mostly little fertile (Rendzinas). Regarding the water content in soils, Cambisols have generally sufficient water supply; Luvisols have lower water supply with a possibility of their aridization; Rendzinas are mostly loose soils with good permeability, regarding their shallow profile with lower water capacity they have usually less water supply. According to the obtained data, it is possible to evaluate wild service tree as a light-demanding woody plant with requirements for higher temperatures and higher contents of nutrients in soil, able to grow on drier soils with infrequent occurrence of water deficit. With regard to the expected changes of global climate, wild service tree should substitute some tender woody plants with higher sensitivity to drought in landscape as well as in forestry. Keywords: wild service tree, ecology, distribution, stand, community Journal: Horticultural Science Pages: 138-151 Volume: 34 Issue: 4 Year: 2007 DOI: 10.17221/1896-HORTSCI File-URL: http://hortsci.agriculturejournals.cz/doi/10.17221/1896-HORTSCI.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/hor-200704-0003.txt Handle: RePEc:caa:jnlhor:v:34:y:2007:i:4:id:1896-HORTSCI Template-Type: ReDIF-Article 1.0 Author-Name: M. Jebavý Author-Workplace-Name: Department of Horticulture and Landscape Architecture, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic Title: A relationship between the verdure system and land use planning of a small town Abstract: Small towns are defined as towns with the population not exceeding 15,000 (20,000) residents. They are organisms that can be embraced visually, mostly with the clearly demarcated area. Residents know their small town very well, the majority of buildings and structures is constructed at a reasonable scale and architectonic dominants allow easy orientation. Verdure in a small town is either a separate functional space (park, landscaped area, forest, scattered green vegetation) or it is associated with another function (residential green spaces, green spaces of housing estates, line verdure, verdure of self-retained areas - sports grounds, cemeteries, schools, etc.). The verdure of a small town is formed to make up a system. It may be realised but its functionality may be diminished by barriers of different type. Verdure significantly contributes to the image of a small town and its particular spaces. From the recreation aspect it is important to create near and easily accessible green spaces that may be used for the short- or long-time recreation of residents and visitors; the good connection of the urban verdure system with suburban landscape is desirable. To accentuate the basic landscape values and to realise the potential of the verdure system of a small town it is advisable to use the system of land-use planning while the landscape plan becomes its integral part. Keywords: small town, verdure system, functional and spatial structure, green spaces, urban area, landscape Journal: Horticultural Science Pages: 152-158 Volume: 34 Issue: 4 Year: 2007 DOI: 10.17221/1895-HORTSCI File-URL: http://hortsci.agriculturejournals.cz/doi/10.17221/1895-HORTSCI.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/hor-200704-0004.txt Handle: RePEc:caa:jnlhor:v:34:y:2007:i:4:id:1895-HORTSCI Template-Type: ReDIF-Article 1.0 Author-Name: A. Batool Author-Workplace-Name: Citrus Nursery Sanitation Laboratory, Institute of Horticultural Sciences, University of Agriculture, Faisalabad, Pakistan Author-Name: Y. Iftikhar Author-Workplace-Name: Citrus Nursery Sanitation Laboratory, Institute of Horticultural Sciences, University of Agriculture, Faisalabad, Pakistan Author-Name: S. M. Mughal Author-Workplace-Name: Department of Plant Pathology, University of Agriculture, Faisalabad, Pakistan Author-Name: M. M. Khan Author-Workplace-Name: Citrus Nursery Sanitation Laboratory, Institute of Horticultural Sciences, University of Agriculture, Faisalabad, Pakistan Author-Name: M. J. Jaskani Author-Workplace-Name: Citrus Nursery Sanitation Laboratory, Institute of Horticultural Sciences, University of Agriculture, Faisalabad, Pakistan Author-Name: M. Abbas Author-Workplace-Name: Citrus Nursery Sanitation Laboratory, Institute of Horticultural Sciences, University of Agriculture, Faisalabad, Pakistan Author-Name: I. A. Khan Author-Workplace-Name: Citrus Nursery Sanitation Laboratory, Institute of Horticultural Sciences, University of Agriculture, Faisalabad, Pakistan Title: Citrus Greening Disease - A major cause of citrus decline in the world: A Review Abstract: Citrus Greening Disease (CGD) was critically reviewed with respect to its history, origin, symptomatology, host range, pathogenic association, identification and detection, transmission and management. It is evident that the citrus disease has emerged as a potential serious threat to citrus production in all the citrus growing countries of the world including Pakistan. It is has been proved that in Pakistan the greening disease is the major cause of citrus decline; hence it is necessary to formulate definite planning and strategies. Keywords: citrus greening disease, citrus decline, symptomatology, protection Journal: Horticultural Science Pages: 159-166 Volume: 34 Issue: 4 Year: 2007 DOI: 10.17221/1897-HORTSCI File-URL: http://hortsci.agriculturejournals.cz/doi/10.17221/1897-HORTSCI.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/hor-200704-0005.txt Handle: RePEc:caa:jnlhor:v:34:y:2007:i:4:id:1897-HORTSCI Template-Type: ReDIF-Article 1.0 Author-Name: editors Title: INDEX OF VOLUME 34 - HORTICULTURAL SCIENCE Journal: Horticultural Science Pages: 167-169 Volume: 34 Issue: 4 Year: 2007 DOI: 10.17221/1893-HORTSCI File-URL: http://hortsci.agriculturejournals.cz/doi/10.17221/1893-HORTSCI.html File-Format: text/html Handle: RePEc:caa:jnlhor:v:34:y:2007:i:4:id:1893-HORTSCI