Abstract
There were analysed nine grape varieties, five destined for wine production (Aromat de Iasi, Pink Traminer, Italian Riesling, Feteasca Regala, Muscat Ottonel) and four varieties for table grapes (Timpuriu de Cluj, Chasselas dore, Muscat de Hamburg, Napoca). The experiment was carried out in 2007, in Dej vineyard, Cluj county, Romania and was directed to their fertility and productivity under two types of desease and pest control treatments: chemical and organic. Three treatments were applied both in the chemical and organic variants of control. The chemical treatments consisted in: Shawit 72 WP 0,2 %, Ridomil 0,25% and Topsin 70 WP 0,1%, while the organic treatments consisted in: Bordeaux mixture 0,5% + purine of greater nettle 1/20 dilution, Sulfocupron 0,6% and Trichodex 25 WP 0,2%. The experiment layout was randomized bloks in three replications. Each individual plot comprised five vines, resulting a total of 54 experimental plots. Absolute and relative index of fertility obtained as:
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