A field experiment was conducted in two consecutive cropping seasons (August, 2002 to March, 2004) to study the influence of support systems and spacing on hyacinth bean production. A spilt plot design was followed taking two varietles/lines (BARI Shim-1 and CBR01l5) of hyacinth bean (Dolichos lablab L.) in the main plot, three support systems (Horizontal bamboo scaffold, “A” shaped sloped bamboo trellis and vertical branched bamboo sticks) in the sub plot and three spacing (1 × 1.5m, 1 × 1m and 1 × 0.5m) in unit plots. The advanced line CBR0115, vertical branched bamboo stick support and closer (1 × 0.5m) spacing gave independently higher pod yield of hyacinth bean. CBR0115, vertical branched bamboo stick and closer spacing (1 × 0.5m) combination produced an average maximum pod yield of 17.30 t/ha. BARI Shim-1 produced wider (2.27 cm) pods while CBR0115 produced longer (14.93 cm) curved cylindrical pods. The maximum net return (Tk. 1.43 lakh/ha) was obtained from CBR0115 with branched bamboo stick support at helm spacing with the highest BCR of 4.76.
