In recent years identification of the geographical origin of food has acquired very importance because consumers are more and more interested in knowing the provenance of the food purchased and/or eaten. The knowledge of a chemistry relationship between the soil and the agricultural products is an important tool for the quality assessment of food. Metal cations onto particle surface of soil changing the environmental conditions can be mobilized and therefore to became bioavailable.In particular the chemical behavior of YLOID (Y, La and Lanthanoid) was studied to evaluate and trace the distribution from soil to roots, leaves to the grape in Vitis vinifera L. In a first study YLOID, present in equimolar amount in the growth substrate, suggested no preferential sorption of any element in overall root samples and similar pattern was also found in epigeal samples (1). Therefore the grapevine could be a potential proxy of different YLOID distributions in different soils. For these reasons are in progress experimental trials to verify if different varieties of rootstock on identical soil have similar behavior and if the same rootstock could reproduce different YLOID distribution on different soil typologies. Three different varieties of rootstocks V. berlandieri X V. rupestris (1103 Paulsen, 779 Paulsen and 140 Ruggeri), planted on different soils (carbonatic, clayey and volcanic soils), are under observations. The uptake of YLOID and their distribution in grapevine system were studied under controlled conditions following the plants growth in pots. The experimental system consisted of a set of 81 vines (27 per rootstocks) implanted, in groups of nine, on the three different types of soil.Three replicates for each group and for three different phenological stages were sampled. To study the metal distribution, the main part of plants: roots, stem, shoots and leaves were analysed. The obtained results were critically discussed on the basis of the different amount presents in all parts of plants.
|Numero di pagine||305|
|Stato di pubblicazione||Published - 2012|