Fig. 5. (A) Amino N and (B) buffer-soluble protein concentrations of alfalfa taproots sampled in mid-October and early December. Six alfalfa cultivars; Vernal, Dart, G2852, Archer, Sutter, and CUF 101 with known fall dormancy and winter hardiness were compared with five experimental germplasms; 98-141, 98-157, 98-148, 98-142, 98-132. Data were averaged over 2 yr. Error bars represent one standard error of the mean (n = 8).