Abstract
THE adverse effect of temperature on plant growth may sometimes be corrected by the external application of certain essential metabolites. As early as 1943, Bonner1, using Cosmos sulphureus Cav. as experimental plant material, found that the growth under sub-optimal temperature conditions was improved by thiamin application. Later work by Bonner2 and more recently the experiments by Ketellapper3 showed that both high-and low-temperature effects on several plant species were overcome by chemical treatments. The investigations recorded here were carried out to determine whether or not the response of fiddleneck (Amsinckia intermedia, Fisch and Mey) to 2,4-dichlorophenoxyacetic acid (2,4-D) when grown at a low temperature can be changed by treatment with certain metabolites.
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References
Bonner, J., Bot. Gaz., 104, 475 (1943).
Bonner, J., Eng. and Sci., 20, 28 (1957).
Ketellapper, H. J., Plant Physiol., 38, 175 (1963).
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MAULDIN, W., MUZIK, T. Formative Response of Amsinckia intermedia to the Interrelated Effects of Low Temperature, Thiamin and 2,4-Dichlorophenoxyacetic Acid. Nature 203, 427 (1964). https://doi.org/10.1038/203427a0
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DOI: https://doi.org/10.1038/203427a0
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