Parthenogenesis is formed from the Greek word parthenos meaning virgin or unfertilized and genesis meaning origin. The process by which ovules develop into embryos and ovules into seeds without fertilization is called parthenogenesis. Parthenocarpy is the process of producing seedless fruit with the application of hormones. In 1908, scientist Winkler first observed the process of embryo production without fertilization. Parthenogenesis occurs in plants like lemon, orange etc.