TY - BOOK AU - Joseph Elia Nasseef AU - Aida Alfonse Rizkalla , AU - Basita Abbas Hussein , AU - Mona Hashem Ahmed Hussein , TI - Genetical studies on some hexaploid wheat varieties and their hybrids / PY - 2012/// CY - Cairo : PB - Joseph Elia Nasseef , KW - Bread wheat KW - Combining ability KW - Hybrids N1 - Thesis (M.Sc.) - Cairo University - Faculty of Agriculture - Department of Genetics; Issued also as CD N2 - Combining ability and heterosis were studied in a 7x7 diallel set of bread wheat. Analysis of variance revealed that mean squares due to genotypes, parents and F₁ crosses, were highly significant for all studied characters. The mean square due to parents vs, crosses, as an indication to the average heterosis, found to be highly significant for all studied traits ER -