Nodes

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Latin term for the nodes (Ez. nodium) on the shoots of the vine. Each shoot is divided into the slightly thickened nodes and the internodes (shoot axes) between them. The medullary canal runs through each internode, which is interrupted by the diaphragm (tissue plate = septum) at each node (nodium) in all varieties of the vine subgenus Vitis. This division into shoot limbs increases the static strength of the long shoot. In addition, the leaves, tendrils, shoots and eyes (buds) arise from the nodes. The length and thickness of the shoot limbs depends on the grape variety, the growing conditions, the nutrient supply and the position on the shoot. At the tip of growing shoots, the nodes are naturally still close together until the process of internodal length growth through cell elongation and cell division is complete and the shoot section becomes woody.

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Nodes

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