Ardisia crenata var. bicolor is an ornamental shrub, owing to its declined wild population, recalcitrant seeds and few high-quality cuttings, the main objective of this study was to optimize an in vitro propagation protocol by using tip shoot and nodal segment as explants from senescent plant. Explants were sterilized and cultured on Muraghige and Skoog medium contained 1.0 mg·L-1 benzylaminopurine and 0.05 mg·L-1 1-naphthaleneacetic acid for shoot initiation. For shoot proliferation, explants were cultured on MS medium with 1.0 mg·L-1 BAP, 0.1 mg·L-1 NAA, and 0.5 mg·L-1 kinetin, and the proliferation coefficient were 3.1 and 2.5. Rooting was achieved by two explants in half-strength MS medium containing 0.5 mg·L-1 indole-3-butyric acid + 0.1 mg·L-1 or 0.2 mg·L-1 NAA, and 0.5 g·L-1 activated charcoal. The highest rooting rate were 72.7% and 65.1% with the highest mean number of roots (4.2 and 2.8, respectively). After acclimatization, 83.3% and 81.2% of plants were survived in the greenhouse. The plant can be rejuvenated via in vitro propagation and provide a reference for supplying the planting materials quickly with an uniform genotype.
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