“…Hybrid lethality in seedlings has been reported for over 100 years in many plant species, such as Triticum - Aegilops complex ( Sax, 1921 ), Nicotiana ( Malloch and Malloch, 1924 ; Christoff, 1928 ; Kostoff, 1930 ), Crepis ( Hollingshead, 1930 ), Gossypium ( Gerstel, 1954 ), Oryza ( Oka, 1957 ), Solanum ( Day, 1958 ; Sawant, 1958 ), Cucurbita ( Whitaker and Bemis, 1964 ), Capsicum ( Hirose et al., 1960 ; Pickersgill, 1971 ), Papaver ( Mcnaughton and Harper, 1960 ), Hordeum ( Takahashi et al., 1970 ), Phaseolus ( Shii et al., 1980 ; Gepts and Bliss, 1985 ), and Camellia ( Nadamitsu et al., 1986 ). Several terms representing hybrid lethality or developmental defects of hybrid seedlings are used by researchers.…”