This study is the first report that determines the effects of 17β-estradiol, estrone, progesterone and androsterone among the mammalian sex hormones on in vitro regeneration of Triticale mature embryos. A range of parameters which were 0 (control), 10-4, 10-8 and 10-12 m mol L−1 doses of 4 different mammalian sex hormones were investigated. It was clear that mature embryo interacted with the ma...