Figure 2.

Relationship between aging rate (expressed as rate of vigor loss, day⁻¹) of pea seeds and τ_R of pea axes. Aging rates were determined at different temperatures (15, 25, 35, 45, and 65°C) and mcs (indicated values in g/g). Data were plotted on a double logarithmic scale {log y = a + b log x}. Mcs, constants, and correlation coefficients of the linear regressions are: ●, 0.16 g/g (a = 6.53, b = −6.86, r² = 0.9995); ○, 0.12 g/g (a = 7.21, b = −6.15, r² = 0.99993); ▴, 0.09 g/g (a = 8.53, b = −6.10, r² = 0.991); and ▿, 0.07 g/g (a = 11.12, b = −6.57, r² = 0.946). Aging rates of pea seeds were obtained by interpolation of previously determined data (10).