Figure 1.

Dependence of aging rate (expressed as rate of vigor loss, day⁻¹) of pea seeds (●) and τ_R (○ and ▵) on temperature of pea embryonic axes at an mc of 0.07 g/g (A) and an mc of 0.12 g/g (B). Two separate measurements of the τ_R of CP in pea axes at 0.07 g/g are shown in A to indicate the reproducibility of the ST-EPR measurements. Aging rates were taken from ref. 10. The arrows indicate the onset T_g as measured by differential scanning calorimetry, obtained from ref. 24, using a scanning rate of 10°C min⁻¹.