SUMMARY
The researches started at the Bujoru Viticulture-Vinification Development Research Station in the Galati County have studied the influence of some maintenance systems upon the development of vine radicular system and Feteasca alba vine productivity, grafted on the Kober 5 BB stock. The maintenance system comprises the following variants: black filed, pre-emergent herbicide ,yearly grassing (spring vetch) and long-term grassing (Bromus sp.). The combined action of both the pedoclimatic factors and the maintenance systems gives specific values to the development and branching of the vine root system. If we take the total length of the roots into account, they were longer when the black field and the herbicide were being used. For the long-term grassing variant the root dimensions were shorter. When the variants maintained through herbicides and perennial grasses there is a roots tend to orientate towards higher levels. Four uniform vines have been chosen for the purpose: at ¼ of the nutrition surface , equal layers of 10 cm in width have been drawn, the roots have been chosen, separate for the vines and for the grasses in the grassing variant to the depth of 100 cm.