Abstract
IT was previously noted1,2 that the lowbush blueberry, Vaccinium angustifolium Ait., will respond to gibberellic acid (GA) placed on the open flower, by the formation of parthenocarpic fruit. It has not been possible to effect the same response in the field on any broad scale. The reasons for this are not understood, but some evidence has been obtained to suggest that certain clones are more receptive to GA than others. The period of receptivity to the growth substance is also well defined and the parthenocarpic fruits seem to swell up more slowly than do seeded berries.
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References
Barker, W. G., and Collins, W. B., Canad. J. Bot., 42, 1102 (1964).
Barker, W. B., and Collins, W. B., Proc. Amer. Soc. Hort. Sci., 87, 229 (1966).
Hall, I. V., and Ludwig, E. R., Canad. J. Bot., 39, 1733 (1961).
Barker, W. B., Wood, F. A., and Collins, W. B., Nature, 198, 810 (1963).
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WOOD, G., COLLINS, W. & BARKER, W. Observations on the Parthenocarpic Response of Blueberry to Gibberellic Acid. Nature 211, 864 (1966). https://doi.org/10.1038/211864a0
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DOI: https://doi.org/10.1038/211864a0
