Improving Seed Storage Outcomes with Controlled Humidity
Seed storage is a critical aspect of maintaining the viability and quality of seeds for future use. Controlling humidity levels within a storage environment is essential to prevent moisture-related damage such as germination loss, fungal growth, and deterioration.
Seed stored at 30-40% RH maintains viability significantly better than seed exposed to fluctuating humidity (60–80%), even where temperature is controlled.
Seed Storage Projects (Real Applications)
Purpose Built Seed Storage Facility
Western Australia
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Turnkey Seed Storage Containers
Northern Territory
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PROVEN RESULTS IN REAL LIFE APPLICATIONS
“All reports onsite are the units are functioning well and the Rehab Team(s) are very happy with their new assets
Mead Ludwig-Bohan, Project Coordinator, South32
Why this Matters in Rehabilitation Programs
Seed is often stored across multiple seasons, locations, and deployment stages. While temperature is typically controlled, unmanaged humidity can lead to gradual declines in viability, increased fungal risk, and inconsistent germination outcomes.
Maintaining stable humidity conditions helps preserve seed quality and reduces variability at the point of use.
What we typically see on projects
Temperature is well controlled, but humidity fluctuates
Storage conditions vary between locations or over time
Seed is held longer than originally planned
Viability issues only become visible at deployment
How humidity control improves outcomes
Maintains consistent seed moisture content
Reduces fungal growth and contamination risk
Improves germination consistency at deployment
Supports longer-term or staged storage programs
Where this approach is used
Mine rehabilitation and closure programs
Environmental seed banks and storage facilities
Research and controlled agriculture environments
Remote or staged deployment projects
Humiscope has worked with many storage and preservation applications. With seed storage, we have seen the benefits of using a desiccant dehumidifier within a cold room environment, and the pitfalls when dehumidification is not used.