Abstract
TETRAPLOID plants of various species of Atropa, Datura and Hyoscyamus have been produced by the treatment of their seeds with colchicine solution; polyploidy being judged by the sizes of stomata or of pollen grains and by chromosome counts in root-tip preparations. Tetraploid plants of Datura Stramonium Linn, and D. tatula Linn, were healthy in appearance and produced as great a weight of dry leaf per plant as the diploid controls. Abundant viable seed was collected from them and produced F1 and F2 generations of tetraploids in the two following years.
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ROWSON, J. Increased Alkaloidal Contents of Induced Polyploids of Datura. Nature 154, 81–82 (1944). https://doi.org/10.1038/154081b0
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DOI: https://doi.org/10.1038/154081b0
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