ORIGIN
The use of rootstock originated at the end of the 19th century, when the phylloxera, an insect from America that attacks the roots of Vitis Vinifera, caused the decimation of many vineyards.
The necessity to find a solution to the problem of phylloxera has led to the search for plants resistant or tolerant to the parasite in its area of origin, the American continent.
After numerous grafting tests, discarding plants that generated grafting disaffinity and had little rooting capacity, three main species of vines suitable for grafting with Vitis Vinifera were identified: Vitis Riparia, Vitis Berlandieri, Vitis Rupestris.
CHOICE OF ROOTSTOCK
Nowadays, the role of the rootstock and its correct and wise choice, analyzing the characteristics of the varieties and the pedoclimatic environment represent a fundamental step for the design of a vineyard and for its achievement of the vegetative productive balance. The choice must therefore be based on the evaluation of the following characteristics:
Grafting affinity Induced force
Resistance to active limestone and water stagnation Efficiency in nutrient absorption
Drought resistance Ground fatigue sensitivity
TYPES OF ROOTSTOCK
Our company annually produces different combinations of varieties/rootstock in order to provide each winegrower with the product that best meets their company needs.
All the plants suitable for the production of rootstocks have been realized using exclusively material of clonal selection basic category constituted by the most important italian and foreign Institutes of viticulture.
These Institutes annually, as well as the Phytosanitary Services of the ERSA of the Friuli Venezia Giulia Region, they carefully inspect the facilities in order to verify the maintenance of the health and agronomic status in accordance with the regulations in force. This allows the winegrower to be provided with sound and safe material of verified origin.
Currently, based on their distinctive characteristics, the TRUANT Società Semplice Agricola has the following rootstocks:
