Latin name for the nodes (Ez. Nodium, German knot) to the exaggerated of vine, Each shoot is divided into the somewhat thickened nodes and the intervening internodes (stem axes). Through each Internodium runs inside the medullary canal, which in all varieties of the vine subgenus Vitis at each node (Nodium) through the diaphragm (Tissue plate = septum) is interrupted. This division into drive links increases the static strength of the long drive. In addition, originate at the Nodien the leaves. tendrils, Bills and eyes (Buds). The length and thickness of the drive links depends on the vine, the growth conditions and the nutrient supply as well as the position on the shoot. Naturally, the nodules are still close together at the tip of growing shoots, until the process of internodial longitudinal growth is completed by cell extension and cell division and the shoot section is lignified.
At the end of the growth cycle As a result of the slowing down of the growth processes, the newly branched internodes become thinner and shorter. In case of nutrient deficiency and water stress the internodes are only briefly pronounced because of the then generally slowed metabolism. The length of the internodes is in the range of 1 to 35 centimeters. Have short internodes Gewurztraminer. Green Valtellina. Muscat Ottonel. Pinot Blanc. Pinot gris. Pinot Noir. Sylvaner. St. Laurent. Riesling and Zweigelt to have long internodes Blue Portuguese. Blaufränkisch. Chasselas. Frühroter Veltliner. Müller-Thurgau. Neuburger and Riesling,
all images taken from Bauer / Regner / Schildberger,
Viticulture, ISBN: 978-3-70402284-4, Cadmos Verlag GmbH