Figure 1.

Viability loss of Secale cereale seeds during storage at 35 °C, 15% water content (wc) and two different storage atmospheres: air (solid curve, ●) or vacuum (dotted curve, ○). Each data point represents a germination assay in which the percentage of normal seedlings was measured for a particular storage condition and replicate (25 seeds). Data were fitted to a logistic regression model and values for 75, 50, and 20% seed germination (P75, P50, and P20) were calculated (Table 1).