Ampelography

The science of identifying and classifying grapevines according to their physical properties, such as the size, shape, and contours of their leaves, petioles, shoots, and grape clusters, as well as the color, size, seed content, and flavor of their grapes. French scientist Pierre Galet introduced modern ampelography in the 1950s and it remained the main system for identifying grapevines until the advent of DNA typing in the 1990s.