It is very difficult to cross common wheat with Hynaldia villosa. Only few plants were obtained in the past. Through clone Culture of immature hybrid embryos, however, not only can we get a great many of plantlets, but also we can preserve the hybrid germplasm for a long time. After 10 months subculture (totalling 9 generations). 1957 test tube seedlings were obtained from calli of 4 immature hybrid embryos, 1350 of them were treated with colchicine and 1122 plantlets were survived. 664 seeds were gained fr...