Abstract
OUR interest in 2,4-dichlorophenoxyacetic acid (2,4-D) is in its influence on growth inhibition as a ‘weed killer’, rather than its role directly in growth promotion or stimulation at the more physiological concentrations. Also, it should be pointed out that at high concentrations 2,4-D does not inhibit the growth of the coleoptiles of whole, intact Avena seedling1, such as is the case for coleoptile sections2.
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References
Henderson, J. H. M., and Deese, D. C., Nature, 174, 967 (1954).
Ball, N. G., and Dyke, Inga J., J. Exp. Bot., 7, 25 (1956).
Henderson, J. H. M., Miller, I. H., and Deese, D. C., Science, 120, 710 (1954).
Galston, A. W., and Baker, Rosamond S., Amer. J. Bot., 36, 773 (1949).
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HENDERSON, J., PETERSON, L. Effect of Dichlorophenoxyacetic Acid on the Geotropic and Phototropic Responses of the Oat Coleoptile. Nature 179, 826–828 (1957). https://doi.org/10.1038/179826a0
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DOI: https://doi.org/10.1038/179826a0
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