![]() In stem grafting, a common grafting method, a shoot of a selected, desired plant cultivar is grafted onto the stock of another type. The scion contains the desired genes to be duplicated in future production by the grafted plant. In most cases, the stock or rootstock is selected for its roots and the scion is selected for its stems, leaves, flowers, or fruits. The scion is typically joined to the rootstock at the soil line however, top work grafting may occur far above this line, leaving an understock consisting of the lower part of the trunk and the root system. The technique is most commonly used in asexual propagation of commercially grown plants for the horticultural and agricultural trades. The natural equivalent of this process is inosculation. ![]() The success of this joining requires that the vascular tissues grow together. The upper part of the combined plant is called the scion ( / ˈ s aɪ ə n/) while the lower part is called the rootstock. Grafting or graftage is a horticultural technique whereby tissues of plants are joined so as to continue their growth together. A grafted tree showing two differently coloured blossoms Cherry tree, consolidated "V" graft Tape has been used to bind the rootstock and scion at the graft, and tar to protect the scion from desiccation. ![]() For other uses, see Graft (disambiguation).
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