Abstract
White pine embryos were grown on 4 different media with 6 different benzyladenine (BA) concentrations. Maximum adventitious shoot initiation and growth were obtained on a modified Lepoivre medium with 20 μM BA. Modified Schenk and Hildebrandt, Murashige and Skoog, and Gresshoff and Doy media were also tested. Shoot elongation was achieved on half-strength basal medium lacking growth regulators. Three rooting experiments involving indole-3-butyric acid (IBA), sucrose concentration, shoot orientation, IBA pulse length, and light or dark were carried out. Treatment of shoots in an upright position with 50 μM IBA for eight days followed by culture in a medium with 3% sucrose in the light produced the most rooting (50% at 3 months). Rooted shoots were transplanted to the greenhouse for further growth.
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Chesick, E.E., Mohn, C.A. & Hackett, W.P. Plantlet multiplication from white pine (Pinus strobus L.) embryos in vitro: bud induction and rooting. Plant Cell Tiss Organ Cult 26, 107–114 (1991). https://doi.org/10.1007/BF00036114
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DOI: https://doi.org/10.1007/BF00036114