Light and Gibberellic Acid Enhancement of Lowbush Blueberry Seed Germination1

in Journal of the American Society for Horticultural Science
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  • 1 Department of Plant and Soil Sciences, University of Maine, Orono, ME 04469


A light requirement for improved seed germination of lowbush blueberry (Vaccinium angustifolium Ait.) was partially overcome by GA treatments; GA at 500, 1000, 2000, and 4000 ppm stimulated early germination of seeds kept in the dark. The germination rate of seeds exposed to an 8 hour light period was also enhanced by GA treatments. Continuous exposure to concentrations above 1000 ppm resulted in abnormally curled seedlings with necrotic root tips.

Contributor Notes

Received for publication September 29, 1978.

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Associate Professors of Horticulture.

Present address: McCarty Hall, University of Florida, Gainesville, FL 32611.