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Why does super sweet (Sh2) sweet corn need to be isolated from field corn or other types of sweet corn?

April 26, 2017Corn field sh2 Sweet types

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Why does super sweet (Sh2) sweet corn need to be isolated from field corn or other types of sweet corn?

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Super sweet cultivars must be isolated from all other sweet and field corn because cross-pollination between super sweet and other corn cultivars will produce kernels that are tough and starchy. Isolation by a distance of 300 feet or 12 days difference in silking is recommended.