The demeanour of the "terroir viticole" concerning the behaviour of white grapevine varieties growing in the Iasi vineyard.

Appropriate management in the vineyard must take account of the fact that achieving a desired quality is influenced by various factors, and choosing appropriate methods and techniques that can ensure the success of such an advanced viticulture. Obtain of wines with high and typical originality can only be achieved in certain areas under vines available resources heliothermal (ecoclimate), soil (soil, litology) and microrelief which stimulates oenological potential of the vine varieties cultivated. There were concerns for determining areas with designation of origin from a vineyard that will produce quality wines, but the purpose of this study is to delimit some microareas that can ensure the achievement of a certain type of wine, a quality required by consumers. Research has shown that grape production and quality are influenced by diferents factors such as: genetic, environmental and technological complex in acting. This is the first study attempting to characterize the concept of "terroir viticole" in vineyard Iasi applied and provides information on the behavior of two white wine grapes varieties grown in the vineyard: Fetească albă and Sauvignon. Depending on the purpose, observations and calculations have find the influence of soil characteristics on several biochemical parameters and agroproducts varieties taken from the study (soluble carbohydrate content, total acidity, the average production of grapes) for the purpose of more detailed knowledge of this vineyards in Romania northern. The results of this study can be used to determine with precision microareas crop, level parcel that will produce quality wines.