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Purple grapes growing on a vine

Grape Expectations

When was the last time you had to pick seeds out of your teeth when you ate a grape? Most likely, never! That's because ARS has bred "seedless" grape varieties with seeds so tiny that you can't even detect them.

Popular varieties include Flame Seedless, Crimson Seedless, Thomcord, and Autumn King, to name just a few. Sunpreme is a variety perfect for drying raisins on the vine. ARS pioneered a technique called "embryo rescue" to create new seedless varieties from existing ones.

Watch this video New Sunpreme Grape Variety from USDA-ARS