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The bud of a Regent vine located between the stem and petiole.. The grape starts its annual growth cycle in the spring with bud break. In the Northern Hemisphere, this stage begins around March while in the Southern Hemisphere it begins around September when daily temperatures begin to surpass 10 °C (50 °F).
When fertilization does not occur, seedless grapes are formed, which are sought after for the production of raisins. Regardless of pollination and fertilization, most plants will produce around 100 to 200 grapes. [14] The skin of the grape accounts for 5 to 20% of the total weight of a grape depending on the variety. [15]
The wild grape is often classified as Vitis vinifera sylvestris (in some classifications considered Vitis sylvestris), with Vitis vinifera vinifera restricted to cultivated forms. Domesticated vines have hermaphrodite flowers, but sylvestris is dioecious (male and female flowers on separate plants) and pollination is required for fruit to develop.
Vitis (grapevine) is a genus of 81 accepted species [5] of vining plants in the flowering plant family Vitaceae. The genus consists of species predominantly from the Northern Hemisphere. It is economically important as the source of grapes, both for direct consumption of the fruit and for fermentation to produce wine.
Grapevines, most of which belong to the Vitis vinifera family, produce one crop of fruit each growing season with a limited life span for individual vines. While some centenarian old vine examples of grape varieties exist, most grapevines are between the ages of 10 and 30 years.
A grape is a fruit, botanically a berry, of the deciduous woody vines of the flowering plant genus Vitis. Grapes are a non- climacteric type of fruit, generally occurring in clusters . The cultivation of grapes began approximately 8,000 years ago, and the fruit has been used as human food throughout its history.