Abstract
Multiple shoots were induced from nodal segments of mature Eucalyptus torelliana F. Muell. and E. camaldulensis Dehnh trees on Murashige and Skoog's medium supplemented with Kn, BAP, Cal.Pan and Bio. Incubation in semi-solid media at 15°C with continuous illumination followed by growth in agitated liquid media was essential for shoot induction and development in primary explants of E. camaldulensis. For culture of E. gorelliana, growth in agitated liquid media alone was sufficient. Rooting could be induced in shoot cultures of E. torelliana by treatment with NAA whereas treatment with a mixture of IAA, IBA, IPA and NAA was essential for E. camaldulensis. After auxin treatment, transfer to a charcoal-containing medium was necessary. Rooted plantlets could be successfully transferred to pots and field. By this method it is estimated that about 50,000 plantlets of E. torelliana and 20,000 of E. camaldulensis can be produced, in a year, from a single nodal segment of a mature tree.
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Abbreviations
- Kn:
-
Kinetin
- BAP:
-
6-Benzylaminopurine
- Ca.Pan:
-
Calcium Pantothenate
- Bio:
-
Biotin
- NAA:
-
α-Naphthalene acetic acid
- IAA:
-
Indole-3-acetic acid
- IBA:
-
Indole-3-butyric acid
- IPA:
-
Indole-3-propionic acid
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Communicated by O. L. Gamborg
Communication No. 3315
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Gupta, P.K., Mehta, U.J. & Mascarenhas, A.F. A tissue culture method for rapid clonal propagation of mature trees of Eucalyptus torelliana and Eucalyptus camaldulensis . Plant Cell Reports 2, 296–299 (1983). https://doi.org/10.1007/BF00270185
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DOI: https://doi.org/10.1007/BF00270185