Abstract: The incompatibility of distant crossing between Triticum aestivum L.and Hexaploid Triticale was studied during the development of hybridseeds.Through dissecting seeds and cutting sections of embryos for micr-oscopic examination,it was discovered that when compared with the pa-rents,no obvious difference could be observed in the development of hy-brids with Hexaploid Triticale as the female parent,thus the lseeds hadvitality.In the reciprocal cross,however,when Triticum aestivum L.wasused as the female paren...