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Seed Bank in Ames, Iowa

Sunflowers being grown out are kept in insect-prooof cages to prevent cross pollination, at the USDA-ARS North Central Regional Plant Introduction Station in Ames, Iowa.

Each cage has it's own beehive so that the plants are properly pollinated. Seeds must be grown out periodically to keep them viable, one of the issues that makes proper maintenance of a seed bank difficult and expensive.

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WORLD FOOD: Seed Banks
Sunflowers being grown out are kept in insect-prooof cages to prevent cross pollination, at the USDA-ARS North Central Regional Plant Introduction Station in Ames, Iowa.<br /> <br /> Each cage has it's own beehive so that the plants are properly pollinated. Seeds must be grown out periodically to keep them viable, one of the issues that makes proper maintenance of a seed bank difficult and expensive.