Fig. 3 From:Improved node culture methods for rapid vegetative propagation of switchgrass (Panicum virgatumL.) Node sampling of the switchgrass GWAS population. Nodal segments were collected from the UGA greenhouse (a) and the UT-Austin field plots (b). A total of 436 genotypes were sampled in three sampling events (c). For most genotypes, four to ten nodal segments were collected (d) Back to article page