Abstract
Talinum triangulare is an important medicinal herb used traditionally in the treatment of various diseases. The present study was intended to develop a rapid and efficient protocol for indirect organogenesis from leaf discs and transverse thin cell layer (tTCL) of internodal explants of T. triangulare. Best callusing response (100 %) was observed with tTCL explants on Murashige and Skoog (MS) medium supplemented with 4.44 μM 6-benzyl amino purine and 5.37 μM α-naphthalene acetic acid (NAA). High frequency shoot regeneration (96.67 %) was obtained from tTCL derived calli on MS medium supplemented with a combination of 0.45 μM thidiazuron and 0.27 μM NAA, by producing 9.20 ± 0.35 shoots with a shoot length of 2.74 ± 0.03 cm. In vitro rooting of the microshoots was recorded on half-strength MS medium containing 2.46 μM indole-3-butyric acid by eliciting 15.20 ± 0.27 roots with a length of 4.25 ± 0.11 cm. The rooted shoots were acclimatized on garden soil, sand and coco pith (1:1:3 v/v) planting substrate. The plantlets were successfully established under field conditions with 100 % survival rate. The hardened plants exhibited homogeneity and no observable morphological variations were detected among the regenerants and the mother plants of T. triangulare.
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