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Vitis vinifera, the common grape vine, is a species of flowering plant, native to the Mediterranean region, Central Europe, and southwestern Asia, from Morocco and Portugal north to southern Germany and east to northern Iran. [2]
Vitis californica, the California wild grape, or Northern California grape, or Pacific grape, is a wild grape species widespread across much of California as well as southwestern Oregon Vitis coignetiae , the crimson glory vine, a species from East Asia grown as an ornamental plant for its crimson autumn foliage
The vine produces numerous inflorescences of male flowers with plenteous pollen and a strong fragrance. The inflorescences would then abscess, but occasionally a few flowers produce functional ovaries and at times develop some very small blackish fruit if the climate allows it to, though they don't normally last on the plant and they tend to taste bitter, although birds consume them.
Phomopsis cane and leaf spot is a disease that causes symptoms in the common grapevine species, Vitis vinifera, in many regions of the world. [2] This disease is mainly caused by the fungal pathogen, Phomopsis viticola, and is known to affect many cultivars of table grapes, such as Thompson Seedless, Red Globe, and Flame Seedless. [3]
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).
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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.
Vines are trained into a variety of styles that aid the growers in managing the canopy and controlling yields. The use of vine training systems in viticulture is aimed primarily to assist in canopy management with finding the balance in enough foliage to facilitate photosynthesis without excessive shading that could impede grape ripening or promote grape diseases.