Fig. 3
From: Phenotyping seedlings for selection of root system architecture in alfalfa (Medicago sativa L.)
Mean root lengths (A) and mean root number (B) between alfalfa population UMN3233 (branch rooted) and UMN 3234 (tap rooted). Different letters above bars indicate significant differences by Students t-test (a = 0.05). Numeric values represent P-values. Total = total root length of all roots; Tap = Primary root; Laterals = All lateral roots; Secondary = all secondary roots; Tertiary = all tertiary roots