The study was conducted at student's Experimental Farm, Department of Agronomy, Sindh Agriculture University Tandojam to evaluate growth and yield of sunflower varieties as affected by seed rates during 2015. The experiment was laid out three replicated randomized complete block design (RCBD) Factorial. The treatments included 03 seed rates and 03 sunflower varieties. Net plot size was used in the experiment 3m x 3m = 9m 2 . The seed rates were kept as Factor A (S1 = 5 kg, S2 = 7.5 kg and S3 = 10 kg ha -1 ) and varieties as Factor B (V1 = HO-1, V2 = NKS-278 and V3 = Hysun -38). In the present study sunflower varieties tested with seed rates, showed maximum mean plant height (125.33) cm, stem girth (6.28) cm, seed weight head -1 (44.94) g, seed index 1000 seed weight (69.89) g, head diameter (33.37) and seeds head -1 (690) at the seed rate 5 kg ha -1 . (1990) were recorded in variety Hysun-38 and minimum head diameter cm (27.11), Seed index 1000 seed weight g (59.00) were observed in the variety NKS-278.
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