Plant breeding has a long history of development beginning with the artificial domestication of crop species. Modern plant breeding based on the fundamental principles of inheritance has become an important component of agricultural science and technology. It has features of both science and arts. Conventional breeding methodologies have extensively proven successful in development of plant cultivars and germplasm. The most renowned examples include the semi-dwarf high-yielding cultivars of cereals developed during the Green Revolution and the hybrid rice developed in 1970s.