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Machine finishing

Mechanical grafting (GB)
See below finishing,

Name (also grafting, copulation, furs) for the artificial, vegetative propagation of woody plants. This is most common with rose and fruit varieties. In principle it concerns a transplantation of a plant part (Edelreis) on the root part of another plant (pad). You can also use the process as Clone denote because it originate from the original plants genetically identical new plants. This technique was already in the antiquity especially known for fruit and olive varieties and is from Cato the Elder (234-149 BC) also mentioned in vines. The main objective is the preservation of special properties especially of fruit-bearing origin varieties but also ornamental plants, if their conservation by poor or disease-prone root system, unsatisfactory growth strength (too strong, too weak) or incompatibility with the soil (eg lime) endangered is.

Lower part (rhizome) and upper part (precious rice)
taken from Bauer / Regner / Schildberger, Weinbau, ISBN: 978-3-70402284-4, Cadmos Verlag GmbH

Reason for the refining - the phylloxera

Cause of the global coverage of vines was imported from America in the middle of the 19th century phylloxera, After some time, they realized that some of the American Wild vines are resistant to the pest, so that the roots are indeed attacked, but not dying as in the European vine. Conversely, the European vines show a high resistance to the formation of phylloxera on the leaf, while some American wild species such as Vitis labrusca especially suffering from leaf bile. Complete phylloxera resistance indicates the species Vitis cinerea on. This forms no Nodositäten at all, so that the phylloxera can not feed on the roots. Other wild species coexist with the phylloxera, that is a phylloxera infestation induces the Wucherungs forms Nodositäten and tuberosities (Picture below) at the roots of lesser extent, but the roots do not die off and the damage is slight. The picture shows tuberosities in Europeans compared to American vines.


The solution of the problem

After numerous failed attempts one finally came up with the saving idea (if that were one or more, can not be determined anymore). On the rhizomes selected American vines were Edewlreiser of Europeans Vines grafted. In this way, the different resistance of both groups of varieties could be optimally combined. Especially reblausfest are the American species Vitis berlandieri (high lime tolerance, reblausfest at the root) and Vitis riparia (reblausfest at the root). Therefore, the two species were crossed with each other. From the seedlings are the known today documents not only resistance against phylloxera and...

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