Template-Type: ReDIF-Article 1.0 Author-Name: M. Henselová Author-Workplace-Name: Comenius University, Faculty of Natural Sciences, Department of Plant Physiology, Bratislava, Slovak Republic Title: Synergistic effect of benzolinone with IBA and fungicides on the vegetative propagation of ornamental plants, park, and fruit woody species Abstract: A study was made of the stimulating effect of benzolinone (3-benzyloxycarbonyl-methyl)-2-benzothiazolinone in powder form (P) and its mixture with indole butyric acid (IBA), the biofungicide Supresivit and fungicide Captan 50 WP on the root formation of 17 species of ornamental plants, park and fruit woody species. Under the action of benzolinone, the yield of rooted cuttings in the category of ornamental plants amounted to 44.5% (in the Dianthus sp.) up to 83.7% (in Rosa canina), in the category of park woody species it was from l6.7 (in Magnolia stellata) to 100% (in Forsythia intermedia). In fruit trees represented by two species, viz. Actinidia arguta and cherry rootstocks, the yield was between 20 and 86.7%, and in two allochthonous species Cotoneaster horizontalis and Philadelphus coronarius it was from 96.7 to 100% in rooted cuttings. In the case of herbaceous and semi-lignified cuttings, lower concentrations of benzolinone below 0.1% were more effective, while on the contrary, higher concentrations of 0.1-0.2% proved more effective with lignified cuttings. In the species with difficult root formation, such as Magnolia stellata, Viburnum farreri and Actinidia arguta, benzolinone demonstrably stimulated both the rhizogenesis, and thereby the overall yield of rooted cuttings, and the quality of the root system. In the case of the species with naturally high rooting ability, the positive effect of benzolinone was manifest mainly in the quality of the root system. The synergistic action of the above stimulants on root formation was achieved in two and three-component benzolinone mixtures with IBA and fungicides on the basis of the active ingredients captan and Trichoderma harzianum. The most evident stimulating effects on the rooting of cuttings in Dianthus sp., Ficus schlechteri and the deciduous species Acer saccharinum Pyramidale, Prunus padus Colorata and Prunus kurilensis Brilliant was obtained in three-component mixtures. Keywords: benzolinone, indole-3-butyric acid (IBA), captan, Trichoderma harzianum, vegetative propagation, ornamental plants, park and fruit woody species Journal: Horticultural Science Pages: 41-50 Volume: 29 Issue: 2 Year: 2002 DOI: 10.17221/4459-HORTSCI File-URL: http://hortsci.agriculturejournals.cz/doi/10.17221/4459-HORTSCI.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/hor-200202-0001.txt Handle: RePEc:caa:jnlhor:v:29:y:2002:i:2:id:4459-HORTSCI Template-Type: ReDIF-Article 1.0 Author-Name: C.G. Tsipouridis Author-Workplace-Name: Pomology Institute, Naoussa, Greece Author-Name: A.D. Simonis Author-Workplace-Name: Pomology Institute, Naoussa, Greece Author-Name: S. Bladenopoulos Author-Workplace-Name: Pomology Institute, Naoussa, Greece Author-Name: A.M. Issakidis Author-Workplace-Name: Pomology Institute, Naoussa, Greece Author-Name: D.C. Stylianidis Author-Workplace-Name: Pomology Institute, Naoussa, Greece Title: Nutrient element variability of peach trees and tree mortality in relation to cultivars and rootstocks Abstract: Leaf samples from 12 peach cultivars (Prunus persica [L.] Batsch.) (Early Crest, May Crest, Flavor Crest,Sun Crest, Fayette, Katherina, Loadel, Andross, Everts, May Grand, Firebrite and Fairlane) grafted on four peach root-stocks were analyzed for their nutrient content. The analysis of variance for leaf nutrient concentrations indicated very significant effects and interactions among cultivars and rootstocks. The rootstock effect on the absorption of nutrient elements was higher for Ca, K, P, Mg, N, and lower for Cu, Zn, Fe, Mn, and B. Generally cultivars grafted on GF 677 had higher N, K, Fe, Cu and lower Zn, Mn, and B, while leaves from cultivars grafted on wild seedlings were found to contain higher Mg and lower P, K, Fe concentrations. Leaf B and Ca were higher for cultivars grafted on Sant Julien GF 655/2, while cultivars on Damas GF 1869 had higher P, Zn, Mn and lower N, B, Ca, Cu concentrations. Leaf N was lower for Fayette on all four rootstocks and significantly different from all other cultivars. Leaf P was lower for Everts and higher for Katherina. Lower concentrations were observed in Early Crest for Fe and Zn, in Andross for Mn, and in Loadel for B, while Flavor Crest had higher concentrations of all these elements. Leaf Zn was the highest for Sun Crest on wild seedling and the lowest for Early Crest on the same rootstock. Similarly leaf N was the highest for Katherina on Damas and the lowest for Fayetteon the same rootstock. Also leaf Mg was the highest for Fayette on Damas and the lowest for Fairlane on Damas. Peach tree mortality was the highest for Damas 1869 and lowest for Sant Julien. Also tree mortality was highest for Early Crest and Sun Crest and lowest for May Grand, Firebrite, and Katherina. The observed trends in the leaf nutrient composition, as regards the cultivars, rootstocks and their interactions, emphasize the importance of these factors on a new peach orchard establishment and macro-microelement fertilization. Keywords: peaches, cultivars, rootstocks, nutrients, elements content, tree mortality, leaf analyses, fertilization Journal: Horticultural Science Pages: 51-55 Volume: 29 Issue: 2 Year: 2002 DOI: 10.17221/4460-HORTSCI File-URL: http://hortsci.agriculturejournals.cz/doi/10.17221/4460-HORTSCI.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/hor-200202-0002.txt Handle: RePEc:caa:jnlhor:v:29:y:2002:i:2:id:4460-HORTSCI Template-Type: ReDIF-Article 1.0 Author-Name: I. Doležalová Author-Workplace-Name: Palacký University, Faculty of Science, Department of Botany, Olomouc-Holice, Czech Republic Author-Name: E. Křístková Author-Workplace-Name: Palacký University, Faculty of Science, Department of Botany, Olomouc-Holice, Czech Republic Author-Name: A. Lebeda Author-Workplace-Name: Palacký University, Faculty of Science, Department of Botany, Olomouc-Holice, Czech Republic Author-Name: V. Vinter Author-Workplace-Name: Palacký University, Faculty of Science, Department of Botany, Olomouc-Holice, Czech Republic Title: Description of morphological characters of wild Lactuca L. spp. genetic resources (English-Czech version) Abstract: Of about 100 Lactuca species, there are only 22 represented in world gene bank collections. The description of morphological and other important features of wild lettuce accessions and a correct taxonomic ranging increase their potential successful utilization. A broad study of 22 wild Lactuca species, their morphology, anatomy, karyology, DNA content and isozyme variation, and a search of large number of literature sources (description keys, floras, monographs) provided a base for an elaboration of a descriptor set. This set consists of 88 descriptors and 24 of them are elucidated by figures. It provides a tool for Lactuca species characterization and determination and for a discrimination of an infraspecific variation. Obtained data can be used for description of wild Lactuca genetic resources and also for research purposes. Keywords: descriptors, determination, germplasm, infraspecific variation, Lactuca spp., wild lettuce specie Journal: Horticultural Science Pages: 56-83 Volume: 29 Issue: 2 Year: 2002 DOI: 10.17221/4461-HORTSCI File-URL: http://hortsci.agriculturejournals.cz/doi/10.17221/4461-HORTSCI.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/hor-200202-0003.txt Handle: RePEc:caa:jnlhor:v:29:y:2002:i:2:id:4461-HORTSCI