See under Lyre.
This training system (also called U- or V-education) was developed in the early 1980s by Dr. Alain Carbonneau at INRA in Bordeaux. It consists of a V- or U-shaped support framework opening upwards, which resembles the Greek musical instrument that gave it its name. The vine stems are about 80 cm high, the distance between the rows is at least three metres. The shoots are divided in such a way that two foliage walls with a hollow area in the middle are created (compared to trellis training with only one foliage...