Water shot
A water shoot (pl. Water shoots ), also water shoots , water veins or horny shoots , is a summer shoot made of old wood from a perennial woody plant. They develop from sleeping buds made of old wood. How strong and how many depends very much on the plant and the variety. These instincts are often confused with the avaricious . Water shoots have the same morphological structure as a green annual shoot of the plant in question.
Water shoots in grapevines
In the vine, usually several puddles form annually. The intensity strongly depends on the grape variety. So z. B. the Portuguese grape variety very little, the Silvaner variety very many water shoots. In the case of foliage work, water shoots are removed, provided they are not needed as replacement wood for pruning or for rejuvenation. In the year of development, these shoots only have a grape attachment in exceptional cases. For this reason the opinion arose that these shoots are sterile. However, this only applies to the first year of their development, as they developed from a dormant bud. These shoot systems, embedded in the old wood, usually only have pre-formed organs for shoot and leaf development. They represent a drive reserve that is desired in certain situations (after severe winter or late frost damage, hail damage or planned rejuvenation). How well the water bullet can develop depends on its exposure situation during the growing season. Shoots that develop inside thick canopy walls grow faster because of the shade. In the buds of these shoots, however, the flower systems are less fertile for the coming year. If water shoots can develop under good light conditions, then these show a comparable eye fertility as those shoots that develop from the cut eyes.
Water puffs that are not required are removed as early as possible. Removal can be done:
- manually, by breaking out
- mechanically by brushing with stick cleaning devices
- chemically with special burning agents
Several shoots of water on one trunk. The vine is damaged by the late frost. Therefore, well-standing water puddles are left in order to be able to rebuild the vine.
Wasserschoss - a green shoot from the old wood of a vine trunk.
The brush part removes the green shoots from the trunk.
Water shoots in fruit trees
Water shoots usually form inside the tree canopy from a sleeping bud. The result is usually an upright shoot with long internodes and relatively soft tissue. Normally, these shoots are removed early from green cuttings. However, they are important as a replacement shoot in the event of branch or tree damage or when the tree is rejuvenated.
Individual evidence
- ^ Fritz Schumann , Weinbaulexikon , Meiniger Verlag, Neustadt / Wstr. 1998, ISBN 3-87524-131-2
- ^ Karl Bauer, Ferdinand Regner , Barbara Schildberger: Weinbau , avBuch im Cadmos Verlag, Vienna, 9th edition 2013, ISBN 978-3-7040-2284-4 , p. 32.
- ↑ worm Lafer, Kickenweiz, Rühmer, Steinbauer: Successful fruit growing , AV Verlag, Wien 2010, ISBN 978-3-7040-2381-0 . P. 31.