Abstract: A field study was conducted at the Teaching and Research Farm, University of Agriculture, Makurdi, Nigeria in 2008 and 2009 cropping seasons. The objectives were to identify important determiners of yield characters and to determine the correlations between growth characters viz: number of leaves per plant, length of internodes per plant, number of internodes per plant, leaf area index, net assimilation rate, absolute growth rate, plant height; and yield characters namely: panicles per plant, capsules per plant, capsules per panicle, seeds per plant, dry weight of harvestable material, total dry weight per plant, harvest index, seed yield, 100 seed weight and oil yield at 4, 8, 12, 16, 20, 24 and 28 weeks after sowing(WAS). The technique of growth analysis described by Steel and Torrie was adopted for data collection. Growth characters were correlated with yield characters and correlation coefficients were determined.