There are two type of propagation - asexual and sexual .
Asexual propagation involves the vegetative parts of a plant including the roots, stems or leaves.
A part of a single parent plant is made to regenerate itself into a new plant, which is genetically identical to the parent plant. There are several advantages to propagating plants asexually. It may be the easiest and fastest way to propagate some species of plants. In addition, it may be the only way to perpetuate some cultivars, and it bypasses the juvenile characteristics of certain species. The Kieffer pear and the Peace rose are two examples of clones that have been asexually propagated for many years.