Supplemental OpenSimRoot Files

Supplemental OpenSimRoot setting files used to generate simulations of Phaseolus vulgaris and Phaseolus acutifolius root systems. Models of P. acutifolius root architecture had no adventitious roots, one whorl consisting of four basal roots, and a basal root angle of 40 degrees from the soil surface.  Models of P. vulgaris simulations had six adventitious roots, three whorls consisting of twelve basal roots, and a basal root angle of 35 degrees from the soil surface. All other plant properties were held constant in all simulations. Plant growth was simulated for 40 days after germination. Given its mobility with water in the soil profile, nitrate was used as a proxy for water in the model. To simulate water limited conditions, a mild nitrogen stress (106.5 kg/ha available N) was imposed and availability was stratified by soil depth. Boundaries were applied to permit root growth within a 0.6 m x 0.6 m x 1.5 m deep soil volume to emulate a similar soil volume as within a planted row in the field. The vertical boundaries mirror roots that reach the boundary back within the permitted root zone, maintaining a total root length similar to that of field conditions.