Seedpedia is a service for disclosingand utilizing seed information.
Uncertain
Species that do not fall under the above categories
Recalcitrant
1. Recalcitrant, R : Species exhibiting drought resistance at a seed moisture content of 20% or less 2. Recalcitrant ?, R? :Seeds with a short lifespan; species that require moist storage and are challenging to keep viable
Intermediate
1. Intermediate, I : Seed moisture content can be reduced to 10-12%; vitality expected to decrease if stored at low temperatures after drying 2. Intermediate ?, I? : Decrease in vitality due to excessive drying; seeds with storage characteristics similar to those of intermediate seeds
Orthdox
1. Orthdox, O : Species Suitable for Long-Term Cold Storage After Drying (Moisture Content 3-7%) 2. Orthdox ?, O? : A species that exhibits storage characteristics of over 50% Orthodox seeds; a storage test under IPGRI's long-term storage conditions (moisture content of 3-7%, -18°C) required 3.Orthdoxp,Op:Species with high potential for the storage characteristics of Orthodox seeds; can be stored at room temperature for 3 to 10 years
Cold Storage
This method involves storing under conditions of -20°C and relative humidity below 40% for long-term preservation.
Seed Storage under Soil
This method involves placing seeds in a container and burying them, commonly used for nuts like chestnuts and walnuts, while maintaining a humidity level of 80-90% for storage.
Dry Stage (Protective Storage)
This method involves mixing seeds with dry sand at a 2:1 ratio (sand to seeds) and storing them indoors or in a storage facility to prevent them from drying out before sowing.
Sealed Storage
Store seeds from species like larch and poplar in glass jars or metal containers, adding a seed vitality agent (such as potassium sulfide) and a drying agent (like calcium chloride or silica gel). Seal the containers and keep them at a low temperature of 2–4°C.
Cold Humid Storage (Cooling & Humidification)
This method stores seeds by mixing them with moist sand at low temperatures (0–10°C). For long-term storage, the temperature is maintained below 0°C, with humidity levels kept around 30%.
Dry Storage
This storage method keeps the relative humidity at 50% and ensures the moisture content stays below 13%.