Viticulture Flashcards
Today, roughly 10,000 grape cultivars exist, with over 1,400 in commercial production, and grapegrowing has spread to hospitable zones throughout the world.
Grapevines are lianas: unlike trees, they do not produce extensive wooden support systems but are instead “structural parasites,” climbing on trees for support. They are also phototrophs, or sunseekers, and invest most of their energy into producing leaves and tall shoots, since rapid vertical growth is essential for competition with other plants for vital sunlight.
Wild vines are also dioecious, which means that both male and females plants exist, and successful fertilization relies on wind and insects for pollination. Male plants bare no fruit, and female plants are only fruitful when a male plant is nearby.
