Some plants are able to form fully developed fruits without prior fertilization of the egg in ovules. This is called parthenogenesis and the. phenomen Apomixis’. These fruits are either seedless or with nonviable seeds. Seedless varieties of grapes and many such fruits are now available in the market. These fruits have a lot of commercial interest since jams, jellies and fruit juices are prepare. Apomixis is also useful in preserving desirable characters for infinite periods, since it does not involve meiosis.