Seed stratification
Seed stratification is an agricultural technique that simulates winter conditions to break seed dormancy and promote uniform germination.
Также говорят: cold moist stratification, pre-chilling
The process is essential for seeds that require a period of cold and moist conditions to trigger metabolic changes in the embryo. By mimicking natural seasonal cycles, growers can overcome physiological dormancy and ensure higher germination rates when planting in spring.
To perform stratification, seeds are mixed with a moist medium like sand or peat and stored at cool temperatures, typically just above freezing. The duration depends on the specific plant species, ranging from several weeks to several months.
Common mistakes include using waterlogged substrate, which causes seeds to rot, or failing to maintain a consistent temperature range. It is vital to monitor the seeds periodically to prevent premature sprouting and ensure the medium remains damp but not saturated.