Martinez Orchards, Inc.

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Martinez Orchards - Dormant Rootstock
Rootstock Common Name Parentage Comments*
Rupestris du Lot Saint George V. rupestris "high vigor, poor nematode resistance, performs well in deep dry farmed soils"
Millardet et
De Grasset 101-14
101-14 V. riparia x V.rupestris "moderate vigor, moderate nematode resistance, more vigorous than 3309C in fertile soils"
Couderc 3309 3309C V. riparia x V.rupestris "moderate vigor, very susceptible to root-knot & dagger nematode, poor drought tolerance, sensitive to scions with latent viruses"
Malegue 44-53 44-53 V.riparia x (V.cordifolia x V.rupestris) "moderate vigor, good nematode resistance, not drought tolerant, suitable for high magnesium soils"
Richter 110 110R V.berlandieri x V.rupestris "high vigor, root knot & dagger nematode susceptible, well suited for hillsides or dry farmed sites"
Richter 99 99R V.berlandieri x V.rupestris very similar to 110R
Ruggeri 140 140R V.berlandieri x V.rupestris "high vigor, moderate nematode tolerance, suitable for shallow drought-prone soils, good lime tolerance"
Paulsen 1103 1103P V.berlandieri x V.rupestris "high vigor, root knot & dagger nematode susceptible, more drought tolerant than 110R, high lime tolerance"
Teleki 5C 5C V.berlandieri x V.riparia "moderate/high vigor, broad nematode resistance, good lime tolerance, performs well in fertile well irrigated soils"
Oppenheim #4 S04 V.berlandieri x V.riparia performs similarly to 5C
Millardet et
de Grasset 420A
420A V.berlandieri x V.riparia "low vigor, nematode resistance not well documented, susceptible to potassium deficiency, good lime tolerance, poor drought tolerance"
VR 039-16 039-16 V.vinifera x V.rotundifolia Only recommended for sites with know fanleaf degeneration
* Comments are taken from "FPMS Grape Rootstock Flashcards"

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Martinez Orchards, Inc.
4570 Putah Creek Road
Winters, CA 95694
Telephone: 530-795-0859
Fax: 530-795-5260

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