Ternary reactions, induced by low energy collisions (E ' 6 A MeV), have been studied in the 32 S+ 45 Sc, 76 Ge, 89 Y, 59 Co, 63 Cu and 19 F+ 63 Cu systems. Both, sequential binary decay and fast disassembly of the system have been observed. Clustering effects influence the system fragmentation. PACS 25.70 -Low and intermediate energy heavy-ion reactions. PACS 01.30.Cc -Conference proceedings.