Template-Type: ReDIF-Article 1.0 Author-Name: B. Krška Author-Workplace-Name: Faculty of Horticulture, Mendel University of Agriculture and Forestry in Brno, Lednice, Czech Republic Author-Name: J. Pramuková Author-Workplace-Name: Faculty of Horticulture, Mendel University of Agriculture and Forestry in Brno, Lednice, Czech Republic Author-Name: M. Vachůn Author-Workplace-Name: Faculty of Horticulture, Mendel University of Agriculture and Forestry in Brno, Lednice, Czech Republic Title: Inheritance of some pomological traits in Minaret × Betinka apricot progeny Abstract: In the years 2005, 2006, and 2007 the described pomological characteristics were evaluated and both heritability and correlation coefficients of the determined characteristics of parents and progeny were estimated for the Minaret × Betinka apricot hybrid population. Estimated heritability of fruit weight, over colour and flesh consistency was approximately 0.9. Heritability of flesh colour, fruit attractiveness and fruit flavour ranged from 0.6 to 0.9. The correlations show a strong dependence of the following characteristics of parent varieties and progeny: over colour and fruit attractiveness. Medium strong dependence was determined in the following characteristics: fruit colour and fruit flavour. Weak dependence was found in the case of fruit size. Keywords: Prunus armeniaca L., inheritance of pomological traits, progeny Journal: Horticultural Science Pages: 85-91 Volume: 36 Issue: 3 Year: 2009 DOI: 10.17221/32/2008-HORTSCI File-URL: http://hortsci.agriculturejournals.cz/doi/10.17221/32/2008-HORTSCI.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/hor-200903-0001.txt Handle: RePEc:caa:jnlhor:v:36:y:2009:i:3:id:32-2008-HORTSCI Template-Type: ReDIF-Article 1.0 Author-Name: J. Polák Author-Workplace-Name: Department of Virology, Crop Research Institute, Prague-Ruzyně, Czech Republic Author-Name: A. Hauptmanová Author-Workplace-Name: Department of Virology, Crop Research Institute, Prague-Ruzyně, Czech Republic Title: Preliminary results of in vivo thermotherapy of plum, apricot and peach cultivars artificially infected with PPV-M and PPV-D strains of Plum pox virus Abstract: The elimination of Plum pox virus (PPV) in different stone fruit cultivars was verified by the method of thermotherapy in vivo. Trees of two plum cultivars Čačanská lepotica and Švestka domácí, apricot cultivars Leskora and Velkopavlovická, and peach cultivars Redhaven and Earliglo were used. They were infected artificially with two strains of the virus (PPV-D, PPV-M). Two cycles of thermotherapy in vivo were performed. During the first cycle, 16 trees of plum, apricot and peach were treated for 15 days at 37°C. In the second thermotherapy cycle, 10 trees of individual cultivars of plum, apricot and peach were treated for 22 days at 37°C. In the first thermotherapy (T1), 8 trees out of 16 died; PPV was eliminated in 2 trees of cv. Čačanská lepotica, 1 tree of cv. Švestka domácí and 2 trees of cv. Velkopavlovická. In the second thermotherapy (T2), 1 of 10 treated trees died. The virus was eliminated in 2 trees of cv. Čačanská lepotica, 1 tree of cv. Leskora, 2 trees of cv. Velkopavlovická, and 1 tree of cv. Redhaven. Nine (T1) and seven (T2) months after the thermotherapy, the presence of PPV was detected in 6 out of 11 originally recovered trees using ELISA. Out of 26 trees, 4 trees remained recovered: 2 plum trees and 2 apricot trees. One of these trees, apricot cv. Leskora was originally infected with PPV-M strain, whereas the other three with PPV-D strain. None of the 10 peach trees was treated successfully. Keywords: Plum pox virus (PPV), apricot, peach, plum, fruit trees, thermotherapy in vivo Journal: Horticultural Science Pages: 92-96 Volume: 36 Issue: 3 Year: 2009 DOI: 10.17221/47/2008-HORTSCI File-URL: http://hortsci.agriculturejournals.cz/doi/10.17221/47/2008-HORTSCI.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/hor-200903-0002.txt Handle: RePEc:caa:jnlhor:v:36:y:2009:i:3:id:47-2008-HORTSCI Template-Type: ReDIF-Article 1.0 Author-Name: B. Akbaş Author-Workplace-Name: Plant Protection Central Research Institute, Ankara, Turkey Author-Name: B. Kunter Author-Workplace-Name: Department of Horticulture, Faculty of Agriculture, Ankara University, Ankara, Turkey Author-Name: D. Ilhan Author-Workplace-Name: Plant Protection Central Research Institute, Ankara, Turkey Title: Influence of leafroll on local grapevine cultivars in agroecological conditions of Central Anatolia region Abstract: Leafroll is one of the most important virus diseases of vineyards of Central Anatolia region. Grapevine leafroll associated viruses GLRaV-1 and GLRaV-3 are the most frequently encountered viruses related with leafroll disease of grapes. The effect of leafroll disease on yield and fruit quality was studied. The disease caused in the average 31.22% decrease of berry weights and 28.72% reduction in total soluble solids, while titratable acidity was increased by 24.39%. The reaction of local cultivars to mixed infections of GLRaV-1 and GLRaV-3 was evaluated and Parmak, Kara dirmit, Kara gevrek and Gül üzümü cultivars were considered to be the most sensitive local cultivars to GLRaV-1 and GLRaV-3. Keywords: Central Anatolia region, GLRaV-1 and GLRaV-3, influence, Vitis vinifera L Journal: Horticultural Science Pages: 97-104 Volume: 36 Issue: 3 Year: 2009 DOI: 10.17221/27/2008-HORTSCI File-URL: http://hortsci.agriculturejournals.cz/doi/10.17221/27/2008-HORTSCI.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/hor-200903-0003.txt Handle: RePEc:caa:jnlhor:v:36:y:2009:i:3:id:27-2008-HORTSCI Template-Type: ReDIF-Article 1.0 Author-Name: B. Křižan Author-Workplace-Name: Faculty of Horticulture, Mendel University of Agriculture and Forestry in Brno, Lednice, Czech Republic Author-Name: E. Ondrušiková Author-Workplace-Name: Faculty of Horticulture, Mendel University of Agriculture and Forestry in Brno, Lednice, Czech Republic Author-Name: V. Holleinová Author-Workplace-Name: Faculty of Horticulture, Mendel University of Agriculture and Forestry in Brno, Lednice, Czech Republic Author-Name: K. Moravcová Author-Workplace-Name: Faculty of Horticulture, Mendel University of Agriculture and Forestry in Brno, Lednice, Czech Republic Author-Name: L. Bláhová Author-Workplace-Name: Faculty of Horticulture, Mendel University of Agriculture and Forestry in Brno, Lednice, Czech Republic Title: Elimination of Grapevine fanleaf virus in grapevine by in vivo and in vitro thermotherapy Abstract: In this paper, results of the in vitro treatment are compared with those of in vivo therapy (i.e. treatment of plants in a peat substrate) when eliminating GFLV (Grapevine fanleaf virus) from three grapevine rootstocks. Therapy took 45 days under the temperature of 37°C in both cases. As far as the health condition of treated plants was concerned, no differences were found between the two methods. The differences were manifested in numbers of plants dying during the therapy and in the course of cultivation of apical segments treated with thermotherapy. Based on these results, it can be recommended to apply the thermotherapy in vivo, which - as compared with the in vitro method - enables us to obtain a greater number of apical segments from treated plants and to establish a smaller number of in vitro cultures in the course of the treatment. A shorter period of in vitro cultivation of plants is another advantage of this method because it helps to reduce the risk of somaclonal variability. Keywords: GFLV, thermotherapy, Vitis, virus elimination, rootstocks Journal: Horticultural Science Pages: 105-108 Volume: 36 Issue: 3 Year: 2009 DOI: 10.17221/37/2008-HORTSCI File-URL: http://hortsci.agriculturejournals.cz/doi/10.17221/37/2008-HORTSCI.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/hor-200903-0004.txt Handle: RePEc:caa:jnlhor:v:36:y:2009:i:3:id:37-2008-HORTSCI Template-Type: ReDIF-Article 1.0 Author-Name: C. Mert Author-Workplace-Name: Department of Horticulture, Faculty of Agriculture, Uludag University, Bursa, Turkey Author-Name: A. Soylu Author-Workplace-Name: Department of Horticulture, Faculty of Agriculture, Uludag University, Bursa, Turkey Title: Variations and abnormalities of stamen morphologies in cornelian cherry (Cornus mas L.) cultivars Abstract: : Stamen morphologies of six cornelian cherry cultivars (Degirmendere, Erkenci Degirmendere, İri Bardak, Yuvarlak Bardak, Uzun Memeli, and Bugur) (Cornus mas L.) were evaluated using scanning electron, light and stereo microscopes. Flowers of cornelian cherry cultivars generally had four stamens, but a few of them had three or five stamens. Abnormal and normal stamens were found together in the cultivars examined. Percentages of abnormal stamens among the cultivars ranged from 12% to 22%. Various types of stamen abnormalities were identified in the cultivars such as variations in filament length, abnormalities in anther structure, fusion of stamen to other floral organs. Pollen grain numbers per anther varied between 1,380 and 4,240 among the cultivars. Abnormal anther surface morphology in the cultivars consisted of uneven and swollen epidermal cells. Anther dimensions varied between 624.00 and 1,001.25 μm in length and 460.50 and 745.50 μm in width. Anthers of all the cultivars had subprolate and prolate type of shapes. Keywords: anther, Cornus mas L., morphology Journal: Horticultural Science Pages: 109-116 Volume: 36 Issue: 3 Year: 2009 DOI: 10.17221/59/2008-HORTSCI File-URL: http://hortsci.agriculturejournals.cz/doi/10.17221/59/2008-HORTSCI.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/hor-200903-0005.txt Handle: RePEc:caa:jnlhor:v:36:y:2009:i:3:id:59-2008-HORTSCI Template-Type: ReDIF-Article 1.0 Author-Name: N. G. Tzortzakis Author-Workplace-Name: Department of Vegetable Science, School of Agricultural Technology, Technological Education Institute of Crete, Heraklion, Greece Title: Effect of pre-sowing treatment on seed germination and seedling vigour in endive and chicory Abstract: The influence of pre-sowing treatments using hydropriming, osmopriming and halopriming in laboratory and/or nursery tests on seedling emergence, seedling weight and plant growth of endive and chicory was examined. Halopriming (KNO3) or growth regulators (gibberelic acid; GA3) improved the rate of germination of endive and chicory and reduced the mean germination time needed. 30 min pre-sowing treatment with NaHClO3, methyl jasmonate and dictamus essential oil decreased seed germination as well as seed radicle length in vitro. In the nursery tests, pre-sowing treatments had in some extent impact on the upper part (fresh weight) of the seedling, while no major changes were observed for leaf number and root fresh weight. 6-benzylaminopurine (BAP) or NaHClO3 treatment reduced plant growth of both species. The present study suggests that KNO3 and secondly GA3 treatments may improve rapid and uniform seedling emergence and plant development in nurseries and/or in greenhouses, which is easily applicable by nursery workers with economic profits. Keywords: emergence, growth regulator, plant growth, seed germination, seed priming Journal: Horticultural Science Pages: 117-125 Volume: 36 Issue: 3 Year: 2009 DOI: 10.17221/28/2008-HORTSCI File-URL: http://hortsci.agriculturejournals.cz/doi/10.17221/28/2008-HORTSCI.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/hor-200903-0006.txt Handle: RePEc:caa:jnlhor:v:36:y:2009:i:3:id:28-2008-HORTSCI