Vineyard Management Flashcards
Does the quantity of the fruit decrease with age of the vine?
Yes
When are most vines replaced?
Between 30-50 years
When do the yields finally start?
Around 3 years after planting
What is a Trellis?
Permanent structure of stakes and wires in vineyard
What is ‘Training?’
The vines permanent wood and cane are trained to follow the trellising system if it cannot grow unsupported
What is ‘Pruning’ and when does this occur?
It is the removal of unwanted leaves, cane and permanent wood.
Either pruned in winter or growing season
Why do they prune in winter and what are the two types of winter pruning?
They prune in winter to see how many buds are left on the vine.
The two types are
- Replacement cane pruning
- Spur pruning
What is Replacement Cane Pruning and what name is it referred to?
One or more canes retained and trained horizontally onto a trellis.
It’s referred to as ‘Guyot’.
One cane ‘Single Guyot’, two ‘Double Guyot’.
What is ‘Spur Pruning?’
A large number of 2/3 bud Spurs are retained, distributed along a permanent cordon of old wood or around head of vine.
Why do they prune in the summer?
To trim canopy to allow sunlight to grapes rather than the growth of shoots and leaves.
Why is Training informant?
It is designed to manage the direction of growth
What is Bush-Training and where is it most practical?
You have the permanent wood as a stump, the Spurs are pruned to retain a certain number around the head of the vine. The shoots from the Spurs are then un-trellised and sprawled across the ground.
This is most practical in hot, dry and sunny regions.
What is Bush-Training also referred to as?
Gobelet
What is VSP? (Vertical Shoot Positioning)
Can be used with replacement-cane or cordon-spur pruning. A single canopy of fruits are trained upwards and tied into place on a trellis.
Canopy may extend both or one side or trunk
What are the advantages of a VSP?
Canes or cordons may be trained low to retain heat from the earth or high trained to avoid frost. VSP is also suitable for conditions where vines are planted to a high density.
What can be done to trellis ‘Big vines’?
You divide the trunk of the permanent wood either side of the trellis and the two permanent cordons are trained in two parallel lines so the vine grows two upright canopies. A lot of permanent wood is needed.