Abstract: A field experiment was conducted at eastern block of Tamil Nadu Agricultural University, Coimbatore during summer (Feb-May) 2005 to investigate the influence of morphological modification through terminal clipping in selected varieties of sesame with Factorial Randomized Block Design (FRBD) with three replications employing two factors viz., varieties (SVPR 1, TMV 3 and TMV 4) and morphological modification by terminal clipping (at 15, 25, 35, 45 days after sowing and no clipping). The results of the study indicated that terminal clipping done at 35 DAS found to improve the crop architecture, yield attributes and yield of the sesame variety SVPR 1. The variety TMV 4 was also considered as an appropriate alternative in recording equal growth and yield parameters and yield for the same clipping practice.