Layering is commonly used on larger branches and rooting occurs while the branch is still attached to the plant.
Smaller branches user for cuttings form roots after being removed from the plant.
Both techniques can be used with citrus, but the resulting plants grow on their own roots without using the advantages offered by certain rootstocks. A rooted cutting or layer can be used as a rootstock for desirable scion varieties, but this is not commonly done. The scion is the part of the new combination which is inserted into the other plant and thereby produces the top of the plant, including branches, leaves and, ultimately, fruit. The stock or rootstock is the plant into which the scion is inserted and it produces the root system and lower trunk. The rootstock may be grown from seed, rooted cuttings or layers.