Can seeds lose viability if exposed to light?

The Impact of Light on Seed Viability

When seeds are exposed to light, especially direct sunlight, it can cause photodamage to the embryo, leading to a decrease in germination rates. This is because light can break down the seed coat and damage the delicate structures within. For example, a study on lettuce seeds found that exposure to direct sunlight for as little as 30 minutes reduced germination rates by 50%.

Precautions for Storing Prepper Seeds

To preserve the viability of prepper seeds, it’s essential to store them in a cool, dark place. A root cellar or a sealed container in a basement is ideal. The temperature should be around 40°F (4°C) to 50°F (10°C), and the humidity should be around 50% to 60%. It’s also crucial to keep seeds away from direct sunlight, as even a few minutes of exposure can cause damage.

Techniques for Extending Seed Viability

To extend the viability of seeds, it’s recommended to store them in airtight containers, such as glass jars or mylar bags, and seal them tightly to prevent moisture from entering. You can also use desiccants, such as silica gel or activated charcoal, to maintain a dry environment. For long-term storage, consider using airtight containers with oxygen absorbers to remove any remaining oxygen and prevent degradation.