Common methods of asexual reproduction are cutting and grafting. Grafting refers to grafting buds or branches of one plant to another plant, so that the combined two parts grow into a complete plant. When grafting, the grafted buds or branches are called scions, and the roots below, that is, the grafted plants, are called rootstocks. When grafting, the cambium of scion and rootstock should be closely combined to ensure survival. Grafting is a process in which sperm and eggs do not combine to form fertilized eggs. Cutting generally uses the stems of plants, which are inserted into the soil after treatment and develop into new individuals. There is no process of combining sperm and egg cells into fertilized eggs, which belongs to asexual reproduction.

So, the answer is: grafting; Cutting propagation method