Dormancy Traits

Dormancy traits refer to a plant's capacity to enter periods of reduced metabolic activity in response to environmental stressors—typically light cycle changes, temperature drops, or nutrient scarcity. In cannabis breeding, dormancy expression varies widely across genetic backgrounds, with some cultivars showing pronounced seed dormancy (delayed germination) while others germinate readily. Breeders working in temperate and outdoor cultivation environments often select for or against dormancy traits to align flowering timing with regional seasons. Understanding dormancy genetics is essential for seed banking, controlled propagation, and predicting phenotypic stability across generations. Dormancy can be influenced by both maternal genetics and epigenetic factors, making it a complex trait in breeding programs.

Breeders intentionally select dormancy expression to optimize harvest windows in outdoor cultivation and to stabilize seed viability during storage. Conversely, cultivars destined for indoor or controlled-environment agriculture may be bred to minimize dormancy, ensuring consistent, rapid germination cycles.