General Viti/Vini Flashcards
What rootstock parentage is resistant to root-knot nematode e.g. Ramsey?
V. Champini
What rootstock parentage can enhance vigour?
V. Rupestris
In high pH soils which trace element’s uptake is inhibited by the vine increasing the risk of chlorosis?
Iron
How will cultivating the soil improve soil structure?
Cultivation of the soil can improve the structure by aerating the soil and breaking up any compaction or pans that have formed
What is the most common method of propagating vines in viticulture?
Cutting from a shoot
What are 2 advantages of drip irrigation?
Efficient water usage
Can be used on slopes
In relation to chemical weed control what type of herbicide targets below the ground specifically?
Pre-emergence herbicides
What is one of the disadvantages of using organic fertilisers in the vineyard?
The nutrients need to be incorporated into the soil so that they can be converted into a form that is available to the vine.
What are the first symptoms of downy mildew infection?
It appears as yellow spots on the surface of the leaf
How is phomopsis easily detected in vines?
Canes are whitened and weakened.
What is a key indicator of powdery mildew infection on berries as they mature?
The berries split, exposing the pips
In cool climates rootstocks with Vitis riparia in the parentage are often chosen. What is the reason?
It restricts vigour and advances ripening.
What rootstocks are used to protect vines from Chlorosis?
Fercal
Riparia Gloire de Montpellier
