Using the Magnolia soulangeana seeds as experimental material, we observed the usualbiological character, and detected the physiological and biochemical changes during seedgermination. Meanwhile, we explored the differences of seed vigor, seed’s embryo configuration,reserve substance, and endogenous hormones content during cold and variable temperaturestratificationand exogenous hormonal treatments. And we also investigated how the promotingfactors influenced on the seed germination rate and seedling growth...