Rootstocks Flashcards
What is the primary purpose of using rootstocks in grapevines?
To improve disease resistance, adaptability to soil conditions, and overall vine vigor.
True or False: Rootstocks can influence the flavor profile of the grapes.
True
Fill in the blank: The most widely used rootstock in the U.S. is _______.
3309C
What is a major strength of the rootstock 101-14?
It has good drought resistance and adapts well to various soil types.
Which rootstock is known for its high resistance to phylloxera?
Riparia Gloire
Multiple choice: Which of the following rootstocks is best known for vigor?
A) 110R
What is a weakness of rootstock 1103P?
It can be overly vigorous in fertile soils, leading to excessive canopy growth.
True or False: Rootstock selection does not affect the grape yield.
False
Fill in the blank: The rootstock 420A is particularly sensitive to _______.
salinity
What characteristic does the rootstock SO4 provide?
It offers tolerance to drought and moderate vigor.
Multiple choice: Which rootstock is preferred for sandy soils?
B) 110R
What is one advantage of using the rootstock Fercal?
It is highly resistant to nematodes.
True or False: Rootstocks can only be used for specific grape varieties.
False
What does the abbreviation ‘V. vinifera’ refer to?
The species of grapevine commonly used for wine production.
Fill in the blank: The rootstock 44-53 is known for its _______ tolerance.
calcium
What is a significant disadvantage of using rootstock 5BB?
It is susceptible to over-vigorous growth in rich soils.
Multiple choice: Which rootstock is best suited for alkaline soils?
C) 41B
What is the role of rootstocks in improving pest resistance?
They can provide inherent resistance to pests like phylloxera and nematodes.
True or False: Rootstocks can affect the timing of grape ripening.
True
Fill in the blank: The rootstock 110R is known for its _______ growth habit.
moderate
What is a major strength of the rootstock 101-14?
It has good adaptability to different soil types and climates.
What is the main disadvantage of using the rootstock 3309C?
It may not perform well in extremely wet soils.
Multiple choice: Which rootstock is commonly used in regions with high salinity?
A) 161-49C
What is the impact of rootstock on vine longevity?
Certain rootstocks can enhance the longevity and health of the vine.
