The varied styles of training in use depend partly on the steepness of the vineyard. Either single guyot, with up to 15 buds left on the cane, or double Guyot, with up to eight buds on each cane, may be found, with a vine density of between 4,400 and 4,800 vines per ha (1,940 per acre). There are also some cordon-trained vines, with spur pruning, generally on older vines. The range of maximum permitted yields is given below, although each year the permitted yield can be altered upwards or downwards by decree.
