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Micropropagation of Tigridia pavonia (L.f) DC-a potential floricultural plant from twin scale explants

2012; Medknow; Volume: 1; Issue: 1 Linguagem: Inglês

10.1016/s2305-0500(13)60045-7

2305-0519

Lekha Kumar, Sincy Joseph, Narmatha Bai,

Nanoparticles: synthesis and applications

The present study was performed to standardize an effective protocol for micropropagation of Tigridia pavonia using tissue culture. The explants were cultured on Murashige and Skoog (MS) medium supplemented with cytokinins like thidiazuron (TDZ), zeatin, kinetin and auxins such as indole-3-acetic acid (IAA), 1-naphthalene acetic acid (NAA) and indole-3-butyric acid (IBA), individually at different concentrations. Multiple shoots were obtained on MS medium containing either 2.0 mg/L TDZ or 2.0 mg/L IAA or 0.5 mg/L IBA and in the same medium for a long period (120 d) produced tiny bulbs at the base of the senescent leaves. TDZ favored only multiple shoots without roots, whereas IAA or IBA individually or in combination with TDZ produced rooted shoots. Shoots developed on MS medium supplemented with TDZ were rooted on MS medium containing either IBA or NAA at 0.5 mg/L. The plantlets were acclimatized in pots containing garden soil. Regenerated plantlets developed into normal plants. The plants showed 99% survival. The highest number of bulblets obtained in the present study represents an effective alternative to the conventional method.