Fig. 7
Correlation of freezing resistance (FR, LT50) (LT50, Temperature at which 50% of the plants or organs are killed) in stems of floribunda roses measured by electrical impedance tomography reconstructed values (EIT-RV) with relative electrolyte leakage (REL) method values. The significance is at P < 0.01. Linear correlation coefficient r is 0.93. The data of stems were pooled data of three floribunda rose varieties (n = 15). R2 is coefficient of determination.