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Protocols for Micropropagation of Woody Trees and Fruits

Protocols for Micropropagation of Woody Trees and Fruits

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228<br />

E.C. NUNES ET AL.<br />

the light (ca. 60 mg) or in the dark (50 mg), however no differences are observed in<br />

the fresh weight. Depending on the treatment the calli were either friable or showed<br />

globular structures <strong>and</strong>/or rhizogenesis (Figure 2A,B).<br />

Figure 1. Shoot cultures <strong>of</strong> Cedrela fissilis derived from cotyledonary node cuttings. A)<br />

Callus <strong>and</strong> new buds are <strong>for</strong>med at the base <strong>of</strong> both axillary buds after 45 days <strong>and</strong> B)<br />

shoot proliferation at 90 days. C) A rooted shoot on MS medium 15 days after transfer.<br />

D) Acclimatized plants after 90 days. E) Shoot development from alginate encapsulated<br />

shoot tips <strong>and</strong> F) cotyledonary nodes after 15 days on the recovery medium.

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