Fig. 2. Yield per tiller, stem yield per tiller, and leaf yield per tiller for the (a) first harvest, 25 May 2000; (b) second harvest, 13 July 2000; and (c) third harvest, 1 Sept. 2000 of a three-cut harvest management schedule on spaced-planted big bluestem and switchgrass plants from populations developed by divergent selection for seedling tiller number and high shoot weight. Similar letters within a plant fraction (stem or leaf) among plant types and species indicate no significant difference at P > 0.05. Plant type BMT is big bluestem multiple-tiller Cycle 2, BST is big bluestem single-tiller Cycle 2, SMT is switchgrass multiple-tiller Cycle 2, and SST is switchgrass single-tiller Cycle 2.