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The stage of fruit set follows flowering almost immediately, when the fertilized flower begins to develop a seed and grape berry to protect the seed. In the Northern Hemisphere, this normally takes place in May and in the Southern Hemisphere in November. [1] This stage is very critical for wine production since it determines the potential crop ...
Theoretically, every seedling (also known as a selfling), even if its pollinated by a member of the same grape variety (i.e. such as two Merlot vines), is a crossing as any vine that results from the seed being planted will be a different grape variety distinct from either parent. [1]
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.
For others, grapes may ripen individually within a cluster. Each grape berry contains a pedicel which attaches to the rachis. The main function of the rachis is to allow the grapes to receive their water and nutrients. [12] The pollination and fertilization of grapes results in one to four seeds within each berry.
The term water stress describes the physiological states that grapevines experience when they are deprived of water. When a grapevine goes into water stress one of its first functions is to reduce the growth of new plant shoots which compete with the grape clusters for nutrients and resources.
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.