Abstract
IT has been shown by Sironval et al.1 that gibberellic acid (GA3) affects growth of the main shoots in apple trees (var. Golden Delicious) and apical dominance. Apple-trees treated with 300 p.p.m. GA3 (1–2 ml. given twice a week on the apical bud and young leaves) throughout the growing season are greater and form twice as many lateral shoots as control trees.
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References
Sironval et al., Gartenbauwissenschaft, 27, 295 (1962).
Wareing, P. F., and Nasr, T., Nature, 182, 379 (1958).
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MARCELLE, R., SIRONVAL, C. Effect of Gibberellic Acid on Flowering of Apple Trees. Nature 197, 405 (1963). https://doi.org/10.1038/197405a0
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DOI: https://doi.org/10.1038/197405a0
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