Fig. 5. Effect of radicle length when chilled on the chilling-induced inhibition of subsequent radicle elongation. Points are identified by the radicle length at the beginning of the experiment (1, 10, 20, or 30 mm in length) and the mannitol concentration to which they were exposed before chilling (0.3, 0.5, 0.6 M; control is 0 M). Points were calculated from data presented in Fig. 4, and other data. Curve of the form C_L = C_o (1 – e^–KL) fitted to data points (C_o = 100, K = 0.12, L = radicle length when chilled) had an r of 0.96.