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Preparation for freezing

This week the crew pushed on cleaning and re-checking seeds and counting achenes. I spent a good amount of time prepping seeds to be frozen for long term storage. These seeds are from several different experiments in 2013 and 2014 and have not been X-rayed. They must be placed in the dryer for two weeks, which removes enough internal moisture to avoid the seed rupturing when frozen at -20 degrees Celsius. These E. angustifolia seeds join the Dixon National Tallgrass Prairie Seed Bank here at the Chicago Botanic Garden. This collection has aimed to bank at least one representative sample of every species found in the tallgrass prairie ecosystem. Multiple populations have also been sampled for more than 500 species that are deemed critical to prairie restoration, so our seeds are in good company!

Seeds from multiple experiments in 2013 going in the dryer.

Seeds from multiple experiments in 2013 going in the dryer.

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