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- Author or Editor: Stanislaw J. Karczmarczyk x
The germination of non-dormant (light treated) seeds of cranberry, (Vaccinium macrocarpon Ait. cv. Early Black) is inhibited by exogenous abscisic acid (ABA). Mechanical scarification enhances this inhibitory influence, almost complete inhibition occurring at 100 ppm ABA. Extracts of dormant seeds also inhibited germination whereas extracts of nondormant seeds did not. Gas-liquid chromatographic analyses indicate the presence of much higher amounts of ABA in the extracts of dormant seeds compared to non-dormant seeds. These observations suggest that ABA may be a controlling factor in cranberry seed dormancy.