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ROOTSTOCKS

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:

OpenGroup Berlandieri x RipariaCloseGroup Berlandieri x Riparia

KOBER 5 BB

 

Rootstock vigorous, suitable for deep soils, fresh and also clayey, as long as not calcareous. Good grafting affinity with almost all vines. Excellent resistance to phylloxera and cryptogamic diseases.

 

Clones: FEDIT 101 CSG - ISV 1 - MIK 1 - FR 148 - GM 13 - N 101 - K 21 - 114

SO4

 

Rootstock of medium vigor, suitable for fertile soils, loose and also clayey, as long as they are not with chlorosis. Grafting affinity variable depending on the variety. Excellent resistance to nematodes.

 

Clones: FR 78 - GM 47 - GM 60 - N 201 - 31 OP

BINOVA

 

Rootstock of medium vigor, suitable for deep soils, clayey and fertile, as long as not dry. Good grafting affinity with almost all vines. Excellent resistance to phylloxera and cryptogamic diseases. It represents a mutation of SO4.

 

Clones: 1 OP

420 A

 

Rootstock of modest vigor, suitable for dry and dry soils, tolerates even the ones with chlorosis. Grafting affinity satisfying. Good resistance to phylloxera and cryptogamic diseases.

 

Clones: V.G.V.A. 11 - GM 2

161.49 C

 

Rootstock with limited vigor, suitable for humid soils, tolerates even the ones with chlorosis. Sufficient grafting affinity with almost all varieties. Sensitive to the phylloxera.

 

Clones: GM 3

TELEKI 5 C

 

Rootstock vigorous, of characteristics quite similar to the Kober 5 BB, is different for the best adaptation to poor soils. Good grafting affinity with almost all wine vines. Excellent resistance to phylloxera and cryptogamic diseases.

 

Clones: GM 6

OpenGroup Berlandieri x RupestrisCloseGroup Berlandieri x Rupestris

1103 P

 

Rootstock vigorous, suitable for clay and calcareous soils, tolerates even the ones with chlorosis. Excellent grafting affinity with most vines. Sensitive to the phylloxera.

 

Clones: CFC 57-34 - CFC 60-30 - ISV 1 - GM 94 - 113

140 R

 

Rootstock of good vigor, suitable for dry, drought-like soils, tolerates even the ones with chlorosis. Delicate grafting affinity. Good resistance to phylloxera and cryptogamic diseases.

 

Clones: ISV 1 - V.G.V.A. 10

110 R

 

Rootstock of good vigor, suitable for dry, drought-like soils, tolerates even the ones with chlorosis. Sufficient grafting affinity. Good resistance to phylloxera and cryptogamic diseases.

 

Clones: ISV 1 - 164

OpenGroup Riparia x RupestrisCloseGroup Riparia x Rupestris

101.14

 

Rootstock of poor vigor, suitable for fresh, wet and clayey soils. Very delicate grafting affinity. Sufficient resistance to parasites.

 

Clones: GM 3

3309 C

 

Rootstock of poor vigor, suitable for soils not too dry or dry and humid. Poor grafting affinity. Sensitive to phylloxera and cryptogamic diseases.

 

Clones: 111

SCHWARZMANN

 

Rootstock of sufficient vigor, suitable for clay and dry soils. Poor grafting affinity. Sensitive to the phylloxera.

 

Clones: ISV 1

OpenGroup Riparia x CinereaCloseGroup Riparia x Cinerea

BÖRNER

 

Rootstock of medium vigor, suitable for dry soils, as long as it is not humid or calcareous. Good grafting affinity with almost all vines. Very high resistance to phylloxera and good tolerance to nematodes.

 

Clones: GM 1

OpenGroup Vinifera x BerlandieriCloseGroup Vinifera x Berlandieri

196.17

 

Rootstock vigorous, suitable for acidic, lean and sandy soils. Good grafting affinity. Good resistance to phylloxera and cryptogamic diseases.

 

Clones: 99

41 B

 

Rootstock of medium vigor, suitable for drought and chlorosis. Excellent grafting affinity. Good resistance to phylloxera and cryptogamic diseases.

 

Clones: ISV 1

GRAVESAC

 

Rootstock of good vigor, suitable for acidic soils. Good grafting affinity. Good resistance to phylloxera and cryptogamic diseases.

 

Clones: 264

FERCAL

 

Rootstock vigorous, suitable for calcareous soils. Good grafting affinity. Good resistance to phylloxera and cryptogamic diseases.

 

Clones: 242