Summary
Sterilized ovules of a suitable age are cut in half and introduced to a culture medium kept in constant motion. Many of the embryos are washed out of the ovules and grow. The success rate compares well with more sophisticated techniques. Several plants of synthetic B. napus have been grown by this method.
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References
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Harberd, D.J. A simple effective embryo culture technique for brassica. Euphytica 18, 425–429 (1969). https://doi.org/10.1007/BF00397792
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DOI: https://doi.org/10.1007/BF00397792