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Original Articles

In vitro plant regeneration from leaf callus of Grindelia robusta Nutt

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Pages 487-490 | Published online: 22 Nov 2008
 

Abstract

A regeneration protocol from leaf explants of Grindelia robusta Nutt. was developed. The combination of 0.5 mg l−1 IBA plus 0.5 mg l−1 or 1 mg l−1 BA added to Murashige-Skoog (MS) medium resulted in the best callus induction frequency; the combination of 0.4 or 0.9 mg l−1 BA plus 1.2 mg l−1 GA3 resulted in the best shoot regeneration. Rooting was successful on MS medium supplemented with 0.5 mg l−1 IBA. Hardening of G. robusta plants was accomplished in 30 days with 85% survival rate.

Acknowledgements

The authors are grateful to Dr. Filippo Bedini for technical assistance.

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