Abstract
ONE of the characteristics of the ‘bakanæ’ disease of rice (which is caused by GibbereUa fujikurio, the fungus which produces gibberellic acid) is its ability to stimulate adventitious root formation. Attempts to increase root development with artificially supplied gibberellic acid, however, have almost invariably failed; indeed, it has been claimed that root elongation is inhibited by the gibberellins1,2. With few exceptions, observations of root effects have been incidental to studies of shoot development and it is possible, therefore, that observed effects on roots are indirect and result from a re-distribution of material within the plant from root to shoot.
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References
Stowe, B. B., and Yamaki, T., Ann. Rev. Pl. Physiol., 8, 181 (1957).
Brian, P. W., Hemming, H. G., and Radley, M., Physiol. Plantarum, 8, 899 (1955).
Lockhart, J. A., Proc. Nat. Acad. Sci., 42, 841 (1956).
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RICHARDSON, S. Radicle Elongation of Pseudotsuga menziesii in Relation to Light and Gibberellic Acid. Nature 181, 429–430 (1958). https://doi.org/10.1038/181429a0
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DOI: https://doi.org/10.1038/181429a0
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