Abstract.
Globular stage somatic embryos were induced in callus cultures of Rosa Heritage × Alister Stella Gray on medium containing 13.5 µM 2,4-dichlorophenoxyacetic acid (2,4-D) and developed to the cotyledonary stage on medium containing 9 µM 2,4-D. Cotyledonary-stage embryos were transferred to germination media with or without 1.5 µM 6-benzyladenine (BA) and with or without 44 µM methyl laurate (Mela). BA and Mela both promoted the development of shoots and roots and increased the frequency of bipolar germinations. An average of 56.5% (SE±4.1%) embryos on medium containing both BA and Mela underwent bipolar germinations compared with less than 20% in treatments where either or both were excluded. The effectiveness of BA and Mela was reduced if Mela was included in the development medium or if the concentration of salts and vitamins in the germination media was sub-optimal. There was evidence that growth at one pole of the somatic embryo promoted development at the other.
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Revision received: 23 October 2000
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Sarasan, V., Roberts, A. & Rout, G. Methyl laurate and 6-benzyladenine promote the germination of somatic embryos of a hybrid rose. Plant Cell Reports 20, 183–186 (2001). https://doi.org/10.1007/s002990000303
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DOI: https://doi.org/10.1007/s002990000303