In Vitro Mass Scale Propagation of Wild Cymbidium lowianum with a Rare and Endangered Plant


The wild Cymbidium lowianum, a national-level rare and endangered species of Orchid, is an excellent garden plant with ornamental flowers with striking, deep red lips in a V-shaped formation. The objective of this study was to establish a micropropagation protocol system via immature seeds of wild Cymbidium lowianum, evaluate the Murashige and Skoog (MS), half-strength Murashige and Skoog (1/2 MS) medium, 6-benzylaminopurine (BA), a-napthaleneacetic acid (NAA), organic additions activated charcoal (AC) and banana pulp (BP) effects on the different morphogenesis (seed germination, multiple shoot and rooting) in vitro. The optimal combination for the germination of seed was 1.0 mg·L-1 BA with 0.5 mg·L-1 NAA in 1/2 MS, and addition 0.3%AC, which resulted in 95% seed germination in 90 days. The best formulation for multiple shoot was 1/2 MS medium containing 2.5 mg·L-1 BA, 0.5 mg·L-1 NAA and addition 8% BP in which produced 19.8 shoots per protocorm in 60 days. Multiple shoots were cut and rooted in 1/2 MS supplemented with 1.5 mg·L-1 NAA,0.1 mg·L-1 BA and 0.3% AC, roots initiated 20 days after culture, the rooting percentages reached to 100%, in which 4.7 per shoot produced roots in 60 days. The survival rate of plantlet was up to 92% in moss after 30 days. This finding reveals that it is possible to obtain in vitro culture of Cymbidium lowianum using immature seeds in asymbiotic culture.

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Y. Wang, Z. Li, L. Huang and J. Su, "In Vitro Mass Scale Propagation of Wild Cymbidium lowianum with a Rare and Endangered Plant," American Journal of Plant Sciences, Vol. 4 No. 7, 2013, pp. 1500-1507. doi: 10.4236/ajps.2013.47182.

Conflicts of Interest

The authors declare no conflicts of interest.


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