Fig. 3.
Total germination, normal germination and time taken for germination to reach 50% (T50) for A. githago (a–c), L. perenne (d–f) and P. sativum (g–i) seeds following ageing at 50 °C and 60% RH. The coloured symbols/lines represent different treatments: control (grey circles and dotted line), seeds aged in the presence of O2 absorbers (orange diamonds and short dashed line), silica gel (green triangles and long dashed line) or O2 absorbers and silica gel (yellow squares and solid line). Values are means of 3 replicates ± SE. Asterisks denote significant differences (*, P < 0.05; **, P < 0.01) between treated and control seeds at a particular ageing time point determined using one-way ANOVA