Abstract
A field experiment was conducted to clarify the behavior for growth, yield and yield components on low and high order racemes and main stem and branches in the determinate (Enrei) and the indeterminate (Touzan 69) cultivars of soybean under different planting densities (6.25, 12.5 and 25.0 plants m^-2). An increase in planting density reduced the growth, yield per plant and yield components in both cultivars, but the reduction was more in Touzan 69 than in Enrei. The contribution of low order to total racemes in yield and yield components increased with the increment in planting density on the branches in Enrei and on main stem in Touzan 69. Increase in planting density resulted to higher contribution of main stem to total yield and yield components, especially in Enrei cultivar. Seed weight m^-2 increased drastically at high order racemes on main stem in Enrei, which gave higher yield m^-2 than Touzan 69 at higher planting densities.
