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Essential factors for in vitro regeneration of rose and a protocol for plant regeneration from leaves

Author

Listed:
  • Inas Mohamed Ali Mahmoud

    (Horticulture Department (Ornamental Plants), Agriculture Faculty, Sohag University, Egypt)

  • Anber Mahmoud Ahmed Hassanein

    (Horticulture Department (Ornamental Plants), Agriculture Faculty, Sohag University, Egypt
    Plant Production and Protection Department, College of Agriculture and Veterinary Medicine, Qassim University, Kingdom of Saudi Arabia)

Abstract

In vitro propagation of Rosa hybrida, L. cv. 'Eiffel Tower' was improved by the addition of thidiazuron (TDZ) and silver nitrate (AgNo3) to the culture medium. The combination of auxin and cytokinins was indispensable for inducing response from leaf discs. Maintaining cultures under dark was better than light for callus formation and quality. The source of explants was vital in the regeneration process wherein situ explants produced callus while, in vitro explants regenerated somatic embryos and shoots. Gibberellic acid (GA3) had a favorable effect where in vitro explants showed somatic embryogenesis with no shoots on media containing TDZ however, 37% of explants regenerated shoots directly on medium containing GA3. The presence of benzyl adenine (BA) was essential for shoot elongation, and indole butyric acid (IBA) was better than indole acetic acid (IAA) for rooting. The optimum conditions produced rooted plants from leaf discs within ten weeks. The reported results clarify factors controlling in vitro regeneration of R. hybrida, and provide a rapid protocol allowing further improvements of rose.

Suggested Citation

  • Inas Mohamed Ali Mahmoud & Anber Mahmoud Ahmed Hassanein, 2018. "Essential factors for in vitro regeneration of rose and a protocol for plant regeneration from leaves," Horticultural Science, Czech Academy of Agricultural Sciences, vol. 45(2), pages 83-91.
    • Handle: RePEc:caa:jnlhor:v:45:y:2018:i:2:id:12-2017-hortsci
    DOI: 10.17221/12/2017-HORTSCI
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