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Relationship between rate of vigor loss or longevity of pea seeds and mc determined for different temperatures. (A) Estimation of the loss of vigor, extrapolated from Fig. 2. (B) Estimation of the longevity (σ), extrapolated from the linear regressions in Fig. 5. (C) Estimation of the longevity (σ) calculated using the viability equation (1, 3).
