General term for the world's most common and also oldest cultivation system for wine grapes. It was already used by the Romans in ancient times. In horticulture it is used for many types of fruit. For ornamental vines or table grapes, the training is often grown for decorative purposes on a wall, either free-ranging or using climbing aids such as wooden frames or trellises. For wine grapes cultivated in vineyards, the shoots are attached or guided in the desired shape by means of support systems in countless variations. In this system, a vertical, i.e. vertical, wall of foliage (trellis) is formed with the help of several wires (but one could also call the horizontal overhead system such as pergola a trellis). The foliage wall has a thickness of about 20 to 30 cm. As a rule of thumb, a maximum of 15 shoots per linear metre should be formed to avoid compaction. There is a low trellis training or also called Guyot training after the inventor Jules Guyot (1807-1872) (see details there) as well as a normal trellis training.