Abstract
Effect of spatial a"angement on yield and yield components of two autumn-sown sunflowe, hvbnds viz. 5F-1 00 and C-206 was determined for two consecutive years. The spatial arrangements comprised 60x20, 60x30, 60x40, 60x50, 60x60 and 60x60 cm (the latter with two plants hill'). The maximum plant density of 7.75 mZ was recorded for 60 x 20 cm against the minimum of 2.69 for 60 x 60 cm with one plant hill'. By contrast, the crop planted at 60 x 60 cm with one plant hiil' produced the highest leaf area plant', number of achenes head' and 1000-achene weight as against the lowest at 60 x 20 cm. However, sunflower hybrid C-206 grown in the pattern of 60 x 20 cm gave the maximum seed yield of 3.53 t na'. while sunflower hybrid SF-100 planted at 60 x 60 cm with one plant hiU-' produced the minimum seed yield of 2.38 t ha'
