Abstract
THE remarkable development made in recent years in animal physiology in the study of the endocrinal secretions and their relation to growth has naturally encouraged the tendency to find growth-regulating substances in plants. Most such suggestions as yet are notable for their slender experimental basis, so that the more importance attaches to a recent dissertation by Dr. F. W. Went,1 describing numerous experiments carried out in his father's laboratory at Utrecht, which are regarded by the author as establishing the existence of a growth substance (Wuchsstoff) in the organ of one plant, the coleoptile of the oat.
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References
"Wuchsstoff und Wachstum", by F. W. Went. Rec. des Trav. bot. Neerland., 25, 1–116; 1928.
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P., J. A ‘Growth Substance’ and Phototropic Response in Plants. Nature 122, 928–930 (1928). https://doi.org/10.1038/122928a0
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DOI: https://doi.org/10.1038/122928a0