Scientific Papers Series B Horticulture

gets serious role through the fermentationprocess, because enzymatic activity of the yeastrequires adequate amount and ratio ofmicroelements (Erdss, 1973). Further on, inthe wine it is also significant from the point offormation of “minerality”. This concept refersto the mineral content of the wine, also called“salinity”. Both describe a special abundance inthe taste complexity (Hajós, 2008).The aim of our research was to determine howthe B, Cu, Fe, Mn and Zn content of the berryskins changes in case of the different graperootstocks. Data on mineral compositionaffected by different rootstocks are first yearresults of a longer, and more complex work.MATERIALS AND METHODSGrape variety collection of the University ofDebrecen, Centre of Agricultural and AppliedEconomic Sciences was established in 2003 onimmune sandy soil with 3m between row and1m between vine spacing. 28 rootstockcultivars of the collection were trained to baldhead system with one bended wire technology.In 2010 grafting of ‘Cserszegi fszeres’ (alsocalled ‘Woodcutters’ white’) on 14 rootstocksout of the 28 was started with woody-greengrafting in May, following with green graftingup to 20 th of June. On vines grafted in place thescion was situated between 50-150 cm height.Scion was trained to single curtain trainingsystem (Figure 1.).Figure 1. View from a grape variety collection of theUniversity of Debrecen, Centre of Agricultural andApplied Economic Sciences1 st and 2 nd tables show soil parameters of theexperimental field in Pallag of 0-30 and 30-6057cm depth accordingly. To determine thefraction of soil B, Cu, Fe, Mn and Zn content,which could be utilized by the plant, analysiswith NH 4 -acetate + EDTA elution, elaboratedby Lakanen and Erviö (1971) was used.Analysis of mineral composition of the elutionwas checked by Thermo Scientific iCAP 6300Dual type inductively coupled plasma opticalemission spectrometry (ICP- OES).Table 1. Soluble (Lakanen and Erviö, 1971) B, Cu, Fe,Mn and Zn content of soil of Model Farm (mg kg-1)Parameters Average (mg kg -1 )Sampling depth (cm) 0-30 30-60B 0.63 0.60Cu 9.95 7.02Fe 239 213Mn 329 382Zn 6.93 4.65Table 2. General parameters of soil of Model FarmParametersAverageSampling depth (cm) 0-30 30-60pH (KCl) 5.93 5.91Soil texture Sand SandAll water soluble salt (m/m) 0.005 0.006CaCO 3 % (m/m) 0.5 0.5Humic % (m/m) 1.12 1.08In October of 2011 respectful amount of grapecould be harvested of scions on 12 rootstockvarieties. These are the following: ’Aramon xRiparia 143B M. et de G.’, ’Vitis Berlandieri’,’Berlandieri x Riparia Szilágyi 157 Pécs’,’Berlandieri x Riparia S.O.4’, ’Berlandieri xRiparia T5C Eger’, ’Berlandieri x Riparia T.G.5.A.5.’, ’Berlandieri x Riparia T.8.B.’,’Berlandieri x Riparia T.K. 5.BB’, ’Berlandierix Riparia K.125AA’, ’Riparia Sauvage’,’Riparia Selecta’, ’Riparia Tomentosa’.The scion cultivar ’Cserszegi fszeres’ wasennobled by the crossing of ’Irsai Olivér’ and’Traminer’ by Károly Bakonyi inCserszegtomaj (Hungary). This middle ripe,white wine grape variety is commonlyrespected for its good wine quality andresistance to fungal diseases (Balogh, 1993;Bényei and Lrincz, 1999). The point inselection of this cultivar for our study is tofocus on its sensitivity to dry periods, andeffects of rootstock cultivars on this feature.Sample preparation and analyses wereperformed in laboratory of University of