Rootstocks Flashcards
What is the phylloxera resistance for Riparia Gloire?
High.
In what vineyard environment might a viticulturist use Riparia Gloire?
Where ease of propagation and early maturation are required. Otherwise, has a high phylloxera resistance, but is sensitive to drought, wet soil and lime.
What is the vitis parentage of 5BB Kober
Berlandieri x Riparia
What type of scion is best for 5BB Kober, and what is it’s major disease propensity?
Best suited for high vigour scions such as Nebbiolo or Chardonnay, susceptible to phytophthora root rot.
What is the vitis parentage of Teleki 5C?
Berlandieri x Riparia.
What types of soils are best suited to Teleki 5C Nematode resistance?
Low Nitrogen, moist clays. Has medium nematode resistance.
Vitis parentage of 110R Richter.
Berlandieri x Rupestris.
What is the nematode resistance for 110R Richter?
Low.
What is the drought tolerance for 110R Richter?
High. Best suited to drought prone regions.
What are the wet soil / salinity / lime tolerances of 110R Richter?
Overall medium, well tolerated. Best adapted to hillside, acidic soils.
Vitis parentage of 1103 Paulsen.
Berlandieri x Rupestris.
What are the wet soil / salinity / lime tolerances of 1103 Paulsen?
Overall High. More sensitive to Lime.
Is 1103 Paulsen a good choice of rootstock for Nematode-prone soils?
It is not. In australia, it has performed poorly in soils with nematode populations.
What is the nematode resistance of Freedom rootstock?
High.
What are the characteristics of Freedom?
Best suited to sand / sandy loam, high vigour, high nutrient availability, easy to propagate. Sensitive to latent viruses.
What is the best rootstock for cold, damp soils with low nutrient availability?
1103 Paulsen. Medium to high tolerance of wet soils, has an ease of propagation and high tolerance of soil salinity, but has low nematode resistance.
What is the best rootstock for drought-prone soils?
110R Richter or Salt Creek (Ramsay). Both have high tolerance of drought. Ramsay has high tolerance of nematodes, but is difficult to propagate and is tolerant to phytophthora.
What is the vitis parentage of Ramsey Salt Creek?
Champinii
Is Ramsey Salt Creek tolerant to drought?
Yes.
What rootstocks are best suited to sand?
Ramsey Salt Creek, Freedom, Harmony.
What are the main factors that influence the choice of rootstock?
Pesitlence, Water Availability/Drainage/Irrigation practices and Soil Chemistry.
You’re a viticulturist planting a new vineyard in the Douro Valley. What rootstock would you use for a drought prone potential site that required a high vigour scion? Why?
140 Ruggeri. Has high drought tolerance coupled with high vigour, although is not easy to propagate.
You’re a viticulturist planting a new vineyard in a wet hillside location in Chile. what rootstock would you use for deep, wet soils with no phylloxera risk? Why?
Teleki 5C. Low drought tolerance with medium to high tolerance of nematodes and a high performer on moist, clay soils that has a high ease of propagation.
Could also consider 039-16. Does well in the soil type, isn’t easy to propagate, but is resilient to fan leaf virus that plagues Chilean winegrowers.
You’re a viticulturist planting a new vineyard in a highly irrigated region in the Riverland. What rootstock would you use and why?
1103P Paulsen. Very adaptive to saline soils (irrigation) and drought conditions, although only moderately vigorous and low resistance to nematodes.
You’re a viticulturist planting a new vineyard that is unirrigated in the Rheingau to Riesling. What rootstock would you use and why?
Riesling is a low to moderate vigour scion, and the unirrigated low to moderate fertility of the soil requires a moderately vigorous rootstock to balance the vine, hence, 110R - which is suited to hillside, acidic soils.
True or False:
Vines grafted to rootstocks are more susceptible to lime-induced chlorosis than ungrafted vines.
True.
Which vitis parentage is most tolerant of high lime soils?
Berlandieri.
What is the most lime tolerant rootstock according to Galet (1998)?
140 Ruggeri
What are the two main nutrient considerations when choosing a rootstock? Do rootstocks generally assimilate N more efficiently than own rooted vines?
Nitrogen and Potassium are the most important and yes, rootstocks generally assimilate Nitrogen more efficiently than own rooted vines.
What are the most used Berlandieri x Rupestris rootstocks?
Richter (99R/110R), 1103 Paulsen, 140 Ruggeri
What are the most used Berlandieri x Riparia rootstocks?
SO4 Oppenheim, 5C Teleki, 5BB Kober
What are the most used Riparia x Rupestris rootstocks?
3309 Couderc, Schwarzmann, 101-14
