Abstract
High frequency bud break and multiple shoots were induced in nodal explants collected between November to February from a 5 year old tree of Morus australis Poir syn. M. acidosa Griff. on Murashige and Skoog's medium supplemented with 6-benzylaminopurine (1.0 mg/1). Incorporation of gibberellic acid (0.3 mg/l) along with BAP (1.0 mg/l) not only induced faster bud break from nodal explants as well as from apical shoot buds, but it also enhanced the frequency of bud break. Nodal explants were more responsive than apical shoot buds. The shoots formed in vitro were multiplied further as nodal segments, and an average multiplication rate of 6-fold per subculture was established within 4–5 months. The shoots were successfully rooted on half-strength MS containing a combination of indole-3-acetic acid, indole-3-butyric acid and indole-3-propionic acid, each at 1.0 mg/1. The plantlets were successfully hardened off and established in natural soil.
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Abbreviations
- BAP:
-
6-benzylaminopurine
- GA3 :
-
gibberellic acid
- KN:
-
kinetin
- IAA:
-
indole-3-acetic acid
- IBA:
-
indole-3-butyric acid
- IPA:
-
indole-3-propionic acid
- MS:
-
Murashige and Skoog (1962) medium
- NAA:
-
1-naphthalene acetic acid
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Communicated by G. C. Phillips
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Pattnaik, S.K., Sahoo, Y. & Chand, P.K. Micropropagation of a fruit tree, Morus australis Poir. syn. M. acidosa Griff.. Plant Cell Reports 15, 841–845 (1996). https://doi.org/10.1007/BF00233153
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DOI: https://doi.org/10.1007/BF00233153