Annual growth cycle of grapevines

Annual Growth Cycle of Grapevines

The annual growth cycle of grapevines is the process that takes place in the vineyard each year, beginning with bud break in the spring and culminating in leaf fall in autumn followed by winter dormancy.

Overview

The annual cycle of growth for a grapevine is regulated by a number of factors including the local climate, the variety of the grape, and the specific practices of viticulture employed. The cycle is commonly divided into two main phases: the vegetative phase, from bud break in the spring to flowering, and the reproductive phase, from fruit set to harvest.

Phases of the Growth Cycle

Bud Break

Bud break is the first stage of the growth cycle and occurs in the spring when the vine begins to grow from the buds that have been dormant during the winter.

Flowering

Following bud break, the next stage is flowering. During this stage, the vine develops clusters of small flowers. Each flower has the potential to form a grape berry.

Fruit Set

Fruit set follows flowering and is the stage when the flowers are fertilized and tiny young grape berries are formed.

Veraison

Veraison is the stage when the grape berries begin to grow in size and change color. For red grape varieties, this is when the berries turn from green to red.

Harvest

Harvest is the final stage of the growth cycle. The timing of the harvest is critical and depends on the variety of grape and the desired level of ripeness.

Viticulture Practices

Viticulture practices can greatly influence the growth cycle of grapevines. These practices include pruning, canopy management, and irrigation.

See Also

• Viticulture
• Grape
• Wine production

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