Calluses of two autotetraploid rice(DPR(4) and Zijing(4)) were implanted with 30 KeV N+beams at doses ranging from1.0×1015to 9.0×1015ions cm-2.The differentia
Root border cells(RBCs) originate from the root tip epidermis and surround the root apices.In this study,we evaluated the developmental characteristics and the