1912.
New Jersey, United States
Comment: Pioneer was so designated because it was the first named variety developed as a result of blueberry breeding. It was a first-generation cross between the wild highbush blueberries Brooks and Sooy, made in 1912. Like all the improved varieties not otherwise described, its leaves have no teeth on their margins. Its berries are of light blue color, sweet, of excellent flavor, and when fully ripe are without acidity. The largest berry on the original bush was 18.5 mm in diameter. Young Pioneer plants in commercial fields have borne berries up to 19.7 mm. Pioneer is a midseason variety. F. Coville, 1937. USDA yearbook of Agriculture.
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