Fig. 2. Forage biomass of base (B) and selected (grain-only, GO; dual-purpose, DP) bulk subpopulations of two nurseries (Nursery 1 and Nursery 2) managed as DP wheat crops in 2001 and 2002. Biomass mean bars having the same letter within a year-by-nursery combination are not significantly different ( = 0.10).