Longevity of crapemyrtle pollen stored at different temperatures

► Pollen of all clones lost viability within 7 days stored at room temperature. ► Lagerstroemia pollen is best maintained over time when pollen is stored under refrigeration. ► A storage temperature of −20 °C often improved pollen longevity as compared to 4 °C. ► Lowering the storage temperature to −80 °C is normally unnecessary, but not deleterious. ► Crapemyrtle pollen remained viable for 75-105 days when refrigerated.