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Protocols for Micropropagation of Woody Trees and Fruits

Protocols for Micropropagation of Woody Trees and Fruits

Protocols for Micropropagation of Woody Trees and Fruits

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IN VITRO SHOOT DEVELOPMENT OF TAXUS WALLICHIANA ZUCC.<br />

Figure 5. In vitro propagation T. wallichiana. (A) Shoots regenerated on culture medium containing<br />

1 mg.l–1 indole-3-acetic acid (IAA). (B1) Shoot elongation on culture medium containing<br />

1 mg.l –1 IAA. (B 2). T. wallichiana plantlet. (C 1, C 2) Bud induction on culture medium supplemented<br />

with 1 mg.l –1 6-benzyladenine (BA).<br />

ends. Similarly, shoot elongation can be observed in almost all explants placed on<br />

R10, R11, <strong>and</strong> R12 media. The explants <strong>for</strong>med one to two roots per explant on R7<br />

<strong>and</strong> R13 medium, respectively. Auxin IBA was more effective than NAA <strong>and</strong> IAA<br />

in promoting root induction.<br />

Although auxin promotes lateral <strong>and</strong> adventitious root development, our results<br />

showed the significant difference, as a special characteristic <strong>of</strong> Taxus wallichiana.<br />

3. CONCLUSION<br />

115<br />

This chapter describes the procedure <strong>for</strong> in vitro shoot development <strong>and</strong> bud induction<br />

<strong>of</strong> Taxus wallichiana Zucc., an endangered, recalcitrant <strong>and</strong> valuable medicinal<br />

plant. The fact that shoot induction <strong>and</strong> elongation <strong>and</strong> root regeneration could be<br />

achieved has opened up the novel possibility <strong>for</strong> T. wallichiana large-scale cell

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