Seeds Seed Germination: Germination Requirements Seed dormancy Scarification Stratification Moisture requirements Temperature requirements Light requirements Germination time Seed Saving: Open-pollinated seeds Heirloom seeds Hybrid seeds Seed harvesting Seed cleaning Seed storage Seed viability Seed longevity Seed Propagation Techniques: Direct seeding Indoor seed starting Outdoor seed sowing Seedling transplanting Seed propagation timing Seed spacing Seed depth Seedling care Seedling Development: Cotyledons True leaves Thinning seedlings Transplant shock Hardening off seedlings Nutrient requirements Watering seedlings Seedling growth stages Seed Dispersal Mechanisms: Wind dispersal Animal dispersal Water dispersal Self-dispersal mechanisms Seed adaptations for dispersal Seed dispersal strategies Seed dispersal mechanisms in specific plant species Seed Banking and Conservation: Seed banks Seed conservation Seed viability testing Seed collection protocols Rare and endangered seed preservation Cryopreservation of seeds Seed exchange networks Community seed banks