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• Examination of the Binding Forms of Cu, Zn, Pb and Cd

  161-165

  Katalin Molnár Sz.

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  27

  Cu, Zn, Pb and Cd binding forms were examined on brown forest soil with clay illuviation, on clcareous chernozem and on meadow soil type. We applied one metal ion and the mixture of all at two different concentrations on the soils. Our results show all the four metal ions significantly bound to the mobile fraction on brown forest soils, while on calcareous chernozem and on meadow soil type they were mainly in other fractions. The higher heavy metal load and the presence of other metal ions increased the ratio of the mobile binding form.

• Comparison of the technological background of aquaponic systems

  47-52

  Dávid Homoki

  Dániel Minya

  László Kovács

  Áron Molnár

  Katalin Balogh

  Péter Bársony

  Milán Fehér

  György Kövics

  László Stündl

  Views:

  257

  Aquaponics is the combined culture of fish and plants in recirculating aquaculture systems, an ecologically sustainable horticultural production technique with long traditions.

  The objective of this study is to compare flood-and- drain, and the water crossflow system and examine the differences in the water quality, fish yield and plant growth parameters for Common carp (Cyprinus carpio) and basil (Ocimum basilicum). During the study, water quality parameters of two treatments were compared in temperatures, pH, EC and NO_3¯N were significantly different (p <0.05). Leaf area of the basil plants grew to an average of 20.37 cm² (± 9.02 cm²). The plants’ biomass production was significantly different (p< 0.05) in the two systems. The biomass production showed lower yield, 458.22 g (± 214.59 g) in the constant flow system that in the flood- and- drain system 692.9 g (± 175.82 g). Fish Growth parameters were better in constant flow system (FCR 5.48 g/g ± 0.19). However, the specific growth rate (SGR) demonstrated that fish grew faster in flood- and- drain system 1.38 %/day (± 0.29).

• Application of microsatellite fingerprints for pedigree analysis of Hungaricum grapevine varieties

  71-77

  Zsuzsanna Galbács

  Stella Molnár

  Gábor Halász

  Sarolta Hoffmann

  Anikó Veres

  Zsolt Galli

  Antal Szőke

  Zsófia Tóth

  Katalin Pilinszky

  Barnabás Wichmann

  Pál Kozma

  Erzsébet Kiss

  László Heszky

  Views:

  99

  the Carpathian Basin were involved into our examination, which aimed at genotyping their accessions. DNA fingerprints of 101 varieties were determined with 6 microsatellite markers till 2005, resulting in successful discrimination of the accessions. Based on these results for pedigree determination, even more cultivars and primers were involved into the analyses. For studying the origin of Csabagyöngye and for proving the parent-progeny relations of Irsai Olivér and Mátrai muskotály, 19 microsatellite markers were applied, while 11 were selected for tracing the origin of Királyleányka. Genetic distances between the varieties were estimated with cluster analysis and demonstrated by dendrogram, proving that the varieties can be discriminated from each other based on the microsatellite allele sizes. Pedigree of Irsai Olivér and Mátrai muskotály has been confirmed by microsatellite allele size results, searching for the parents of Csabagyöngye and Királyleányka is in progress, since the molecular-marker based pedigree does not correspond with the putative origin of these cultivars. Our results excluded progeny-parent relationships in the
  Csabagyöngye-Bronnerstraube-Muscat ottonel (Ottonel muskotály) and the Királyleányka-Kövérszőlő combinations.