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Viticulture

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Viticulture is the science of growing and harvesting grapes.

Brhlovce IMG 2315
Brhlovce IMG 2315

It is a special branch of horticulture, which is the study of garden plants. People have been growing grapes for at least 8,000 years. Some of the earliest grape growing happened in Georgia and Armenia. Scientists even found the oldest-known winery in the Areni-1 cave in Armenia.

Wine grapes03
Wine grapes03

This ancient site had a wine press, jars, and even cups. Today, grape vines are very adaptable. You can find them on every continent except Antarctica.

A viticulturist has many important jobs to do. They must monitor the plants for pests and diseases. They also help the plants by fertilizing and providing water through irrigation. During the winter, they must prune the vines to keep them healthy. They also manage the canopy, which is the leafy part of the plant. Finally, they must decide the exact right time to harvest the fruit.

Grape gathering
Grape gathering

These experts work closely with winemakers. This is because how the grapes are grown changes how the wine will taste.

Grape vines have many different parts that work together. It starts with the roots, which hold the plant in place and soak up food. Above the roots is the trunk, which grows into arms. The grapes grow in groups called clusters.

Old vines in a vineyard in Burgundy France
Old vines in a vineyard in Burgundy France

Some clusters are long and spread out, while others are short and packed tight. Each tiny grape is a berry. A small stem called a pedicel attaches each berry to a main stem called a rachis. The rachis carries water and nutrients to the grapes. Most plants will produce between 100 and 200 grapes.

Three main things affect how well grapes grow. These are the climate, the slope of the land, and the soil. Together, these are called terroir.

NorCal2018 -005 Wine Country - Random Napa Valley Vineyard on the side of a road -S0292033
NorCal2018 -005 Wine Country - Random Napa Valley Vineyard on the side of a road -S0292033

Grapes need about 1,300 to 1,500 hours of sunshine every year. They also need a specific amount of rain. Most grapes like to grow in warm areas between 30 and 50 degrees latitude. Hillsides are often better than flat land. Slopes help the vines catch more sunlight and help water drain away from the roots. Good soil must have loose texture and good drainage to help roots grow deep.

Growing grapes can be a hard job because of many hazards.

Downy and Powdery mildew on grape leaf
Downy and Powdery mildew on grape leaf

Strong winds or hail can hurt flowers. Diseases like powdery mildew or downy mildew can also attack the vines. Some farmers use heaters or large fans to stop frost from damaging the plants. Sometimes, farmers perform a "green harvest." This means they remove some young, green grape bunches on purpose. By doing this, the vine puts all its energy into the remaining grapes. This helps the leftover grapes become much better and more flavorful.

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🖼️ Images & Media (7)
File:Wine grapes03.jpg
Wine grapes03.jpg
File:Brhlovce IMG 2315.JPG
Brhlovce IMG 2315.JPG
File:NorCal2018 -005 Wine Country - Random Napa Valley Vineyard on the side of a road -S0292033.jpg
NorCal2018 -005 Wine Country - Random...
File:Old vines in a vineyard in Burgundy France.jpg
Old vines in a vineyard in Burgundy France.jpg
File:Downy and Powdery mildew on grape leaf.JPG
Downy and Powdery mildew on grape leaf.JPG
File:Grape gathering.jpg
Grape gathering.jpg
File:Harvesting the Grapes in Duras.jpg
Harvesting the Grapes in Duras.jpg
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