In this study slides were prepared by smear method with pretreat-ment of low temperature(0°-3℃),KCI,enzyme,flamedrying and diffe-rential stained with Giemsa technique for demonstrating the somatic chro-mosome of root tip of the Chinese rye‘Gansu’and Canadian rye‘Ku-stro’.The karyotype was analysed by means of morphological compari-son and banding pattern of individual chromosomes of the rye genom.There are no significant differences between the chromosome sets of thetwo varieties studied.Both of them show p...