Abstract:Anyhrt vulyure of three types of F1 hybrids(1B 1B,1B 1B/1R,1B/1R 1B/1R)including 23 crosses,and their 15 parents Was conducted,and the chromosomes in the root tip cells of 593 pollenplants obtained from 9 1B 1B/1R crosses Were investigated cytogenetically.The results showed that 1B/1R translocation