Upper canopy: Area with the highest density of photosynthetically active foliage.
Lower canopy: Zone of productive buds. Driving system: bilateral cordon. It generally produces two clusters per branch or shoot.
Trunk. Main support of the vine. Vascular bundles system that connect the roots with the upper canopy. It also works as a storage organ.
Horizon A: loam and clay loam. Area of larger quantity of absorbent fine roots.
Horizon B: sandy, area with thick storage roots and fine water and nutrient absorption roots.
Horizon C: stony covered in a sandy matrix. Exploration zone of thick storage roots.