Term for the young sprout of a plant. The young annual shoot (Lotte, Schoss) of the vine develops in spring from the winter eyes of the biennial wood. Depending on the number remaining after the winter pruning eyes or the length of the annual wood is called a rod, straightener or tenon (see under arc ). The productive development phase of the vine begins in March to April with the expulsion, To the Nodien (Knots) of the shoots are in a row leaves. inflorescences (Notes or later grapes), tendrils and epicormic shoot, as well as shoot buds for future shoots. A vigorous shoot is characterized by thick nodes and long internodes (distances between nodes). The shoot length is determined by the number of nodes (up to 20) and the length of the internodes. Always one sheet opposed ring-shaped tendrils are fasteners.
For good wine quality, shoot and fruit growth must be balanced. The shoot growth takes several months and comes from the veraison (Start of ripening) in the northern hemisphere from the beginning of August slowly to a halt. During this period, the color changes first from green / red to yellow / violet and finally to brown / gray as shown in the picture below. In the mature final stage, the shoots are wooded and thus protected against frost and dehydration. During the maturation process carbohydrates stored what a good frost hardiness and the next shoot is important. The maturity of the shoot with the lignification process begins at the base of the shoots and continues to the tip of the shoot (the outermost piece, about one centimeter long). The younger apical areas become woody last and do not ripen at early frost.
An excessive curtain can delay the maturation of the wood, so that in winter there is an increased risk of frostbite and drying of the shoots that are no longer mature. The shoot tips are therefore very often already at the time of blossom capped what you call as Shoot tips cut designated. From the adventitious can from the trunk the so-called Water Lap shoots grow, but mostly at the time of expulsion be broken out. With certain education forms (mainly in wire frame education) the climbing up of the shoots has to be done several times a year baste get supported. See complete lists below Weingarten Care (regarding activities) and grapevine (regarding relevant keywords about the plant).
Graphic: taken from Bauer / Regner / Schildberger,
Viticulture, ISBN: 978-3-70402284-4, Cadmos Verlag GmbH