Seed Storage database
In nature, the germination of dormant seeds may be triggered by different phenomena such as the cycle of one or more cold winters followed by the warmth of spring; cycles of burial followed by re-exposure to light; passage through a bird or animal gut, fire, or various combinations of these treatments. Artificial substitutes which can be used as dormancy breakage treatments often mimic these conditions and are termed pre-sowing treatments or more commonly ‘pretreatments’.
It must be remembered that:
- There is no single method of pretreatment which is universally effective at overcoming the dormancy of all tree species, and
- The level of dormancy varies between seedlots and individual seeds in a seedlot, hence there may be significant leeway in pretreatment durations.
Incense-cedar
Calocedrus decurrensStorage properties, dormancy characteristics and pretreatment durations for Incense-cedar
Hornbeam
Carpinus betulusStorage properties, dormancy characteristics and pretreatment durations for Hornbeam
Chestnut (Sweet)
Castanea sativaStorage properties, dormancy characteristics and pretreatment durations for Chestnut (Sweet)
Cedar (Atlas)
Cedrus atlanticaStorage properties, dormancy characteristics and pretreatment durations for Cedar (Atlas)
Deodar
Cedrus deodaraStorage properties, dormancy characteristics and pretreatment durations for Deodar
Cedar (Lebanon)
Cedrus libaniStorage properties, dormancy characteristics and pretreatment durations for Cedar (Lebanon)
Cypress (Lawsons) or Lawson's cypress
Chamaecyparis lawsonianaStorage properties, dormancy characteristics and pretreatment durations for Lawson's cypress
Dogwood (Red-barked)
Cornus albaStorage properties, dormancy characteristics and pretreatment durations for Dogwood (Red-barked)
Cheery (Cornelian) or Cornelian cherry
Cornus masStorage properties, dormancy characteristics and pretreatment durations for Cornelian cherry
Dogwood
Cornus sanguineaStorage properties, dormancy characteristics and pretreatment durations for Dogwood