11. Barley: Seed Dormancy and Counting Cold Days

Barley seeds possess a remarkable molecular “counter” that tracks the number of cold days before they break dormancy and germinate. This precise internal system relies on epigenetic memory and vigilant environmental monitoring, ensuring seeds only sprout when spring conditions are ideal.
By counting cold exposures, barley maximizes its chances of survival and successful growth—a testament to the sophisticated decision-making abilities found in plants.
Reference