Rootstocks

Question 1

2 rootstocks effective against nematodes

Answer 1

Vitis Champini (Ramsey, Dog Ridge)

Question 2

3 rootstocks effective against Phylloxera

Why?

Answer 2

Berlandieri
Riparia
Rupestris

Hard, corky layers surround eggs sealing wounds and preventing invasion by bacteria or fungi

Question 3

Rootstocks effective against drought (examples)

Why?

Answer 3

Hybrids of Rupestris and Berlanideri
(110R, 140R)

Root deeply and quickly

Question 4

Rootstock effective against water-logging (example)

Answer 4

Based on Riparia
(e.g. Riparia Glorie)

Question 5

Rootstock effective against high salinity (example)

Answer 5

Based on Berlanideri (e.g. 1103P)

Question 6

Rootstock effective against low PH soils (examples)

Answer 6

Hybrid of Rupestris & Berlandieri
(99R / 110R)

Question 7

Rootstock effective against high PH soils (example)

Answer 7

Berlanidieri (41B)

Question 8

Low vigour rootstock to enhance ripening (examples)

When might they be used?

Answer 8

Riparia (420A / 3309C)

Cool climates

Question 9

High vigour rootstock to enhance vine growth (example)

Why might they be used?

Answer 9

Rupestris (140R)

• Unfertile soils and dry conditions
• Produce sparkling wines (high yield, delicate aroma, high acid)