Rootstock Chart
Rootstock |
Vitis
|
Phylloxera
|
Nematode Resistance |
Tolerance |
Influence
|
Comments |
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Root Knot |
Gagger |
Drought |
Wet Soil |
Salinity |
Lime |
Vigor |
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Riparia Gloire |
a |
H1 |
L |
M |
L |
L |
M |
L |
L-M |
Deep, well-drained, fertile, moist soils. Early maturation; scions tend to overbear |
St. George(Rupestris du lot) |
b |
H |
L |
L |
L-M-H |
L-M |
M-H |
M |
H |
Deep & gravelly soils; K deficiency. Fruit set problems w/some scions; latent virus tolerant |
S04 |
c |
H |
M-H |
L-M |
L-M |
M-H |
L-M |
M |
L-M |
Moist, clay soils, high K uptake. Noted as a cool region rootstock |
5BB |
c |
H |
M-H |
M |
M |
L |
M |
M-H |
M |
Moist, clay soils. Susceptible to phytophthora root rot; adapted to high vigor varieties |
5C |
c |
H |
M-H |
L-M |
L |
L-M |
M |
M |
L-M |
Moist, clay soils |
420A Mgt |
c |
H |
M |
L |
L |
M |
L |
M-H |
L |
Fine-textured, fertile soils. Scions tend to overbear when young |
161-49 |
c |
H |
L |
L |
L |
L |
L |
M |
H |
Humid, fertile soils |
110R |
d |
H |
L-M |
L |
H |
L-M |
M |
M |
M-H |
Hillside, gravelly and acid soils. Develops slowly in wet soils |
140Ru |
d |
H |
L-M |
L |
H |
L |
M-H |
M-H |
H |
Adapted to drought and acid soils. Does poorly in non-irrigated, low K soils |
1103P |
d |
H |
M-H |
L |
M-H |
M-H |
M |
M |
MH |
Adapted to drought and saline soils |
3309C |
e |
H |
L |
L |
L-M |
L-M |
L-M |
L-M |
L-M |
Deep soils. Sensitive to latent viruses; tolerant of cold injury |
101 - 14 Mgt |
e |
H |
M-H |
M-H |
L-M |
M |
H |
L-M |
M |
Moist clay soils, tolerates wet soils |
Schwarzmann |
e |
H |
M |
H |
M |
M |
M-H |
M |
M |
Moist, deep soils |
44 - 53 M |
f |
H |
L |
- |
H |
- |
- |
L-M |
M-H |
High Mg soils. Readily Mg deficient in low Mg soils |
1616C |
g |
H |
H |
- |
L |
M |
M |
L-M |
M |
Best on fertile, med. to fine textured soils; tolerates acid soils. Poor on infertile, sandy soil |
Salt Creek(Ramsey) |
h |
H |
H |
L-M |
M-H |
L-M |
H |
M |
H |
Sandy, infertile soils. Tolerant to Phytophthora |
Dogridge |
h |
M |
H-H |
L-M |
M |
L-M |
M-H |
M |
VH |
Very sandy, infertile soils. Promotes excess vigor, poor fruit set |
Harmony |
i |
L-M2 |
M-H |
L-M |
M-H |
L |
L-M |
M |
M-H |
Sandy loams and loamy sands |
Freedom |
i |
L-M2 |
H |
H |
M |
L |
L-M |
M |
H |
Sands to sandy loams. Sensitive to latent viruses |
Fercal |
j |
H |
M |
M |
M |
M-H |
- |
H |
H |
Mg deficient soils |
039 - 16 |
k |
H |
L |
H |
L |
- |
L |
L |
H |
Poor on coarse, sand soils due to low root knot nematode tolerance. Tolerant of fanleaf virus |
Gravesac |
l |
H |
L |
L |
M |
M |
- |
M |
H |
Mg deficient soils |
RS - 3 |
m |
- |
H |
H |
- |
L-M |
M |
- |
M-H |
Fanleaf tolerant and broad nematode resistance |
RS - 9 |
m |
- |
H |
H |
- |
L-M |
M |
- |
L |
Suitable for close plantings; broad nematode resistance |
^GRN-1(8909-05-AW) |
n |
VH |
VH |
VH |
M |
T |
L |
L |
M-H |
Also highly resistant to ring, citrus and lesion nematodes |
^GRN-2(9363-16-AW) |
o |
VH |
VH |
VH |
M |
M |
M? |
M |
L-M |
Also highly resistant to lesion nematode and moderately resistant to citrus and ring nematode |
^GRN-3(9365-43-AW) |
p |
H |
VH |
VH |
M-H |
M |
M-H? |
M-H |
M+ |
Also resists citrus and lesion nematodes, but not ring |
^GRN-4(9365-85-AW) |
GRN-3 |
H |
VH |
VH |
H |
M |
M-H? |
M-H |
M-H |
Also resists citrus and lesion nematodes, low to moderate ring resistance |
^GRN-5(9407-14-AW) |
q |
M-HH |
VH |
VH |
H |
L-M |
M-H? |
M-H |
H |
Also resists citrus and lesion nematodes, moderate ring resistance, moderately difficult to propagate |
|
Adapted from a chart prepared by UC Davis viticulture specialists, faculty and cooperative extension farm advisors. |
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Legend for Vitis Parentage: |
RATINGS: |
The degree of long term phyloxera resistance is questionable due to the unknown Vitis vinifera parentage of these rootstocks. |
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