🌱 Seed Bank Longevity: Ellis-Roberts Viability, Moisture and Temperature (2D)

A tray of 400 seeds ages in storage while the Ellis-Roberts viability equation predicts how many are still alive. Change the seed moisture, the storage temperature, the starting viability and the species offset and watch the median life move from months on an open shelf to many thousands of years in a freezer vault. Probit survival, the drying and cooling rules and the 85 percent viability time are checked numerically, with four in-page numerical checks.