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Micro-propagation of Alstroemeria Hybrida Cv. Pluto

Journal: International Journal of Environment, Agriculture and Biotechnology (Vol.2, No. 2)

Publication Date:

Authors : ; ; ; ; ;

Page : 662-680

Keywords : Tissue culture; micropropagation; Alstroemeria; growth regulators.;

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The experiment entitled micropropagation of Alstroemeria hybrida cv. Pluto was conducted to standardize protocol for aseptic establishment, callus induction, proliferation, and rooting from rhizome tips, rhizome sections, shoot tips, shoot nodal segments and inflorescence buds. Highest culture asepsis of 79.20 per cent at 2 weeks of culture and 68.08 per cent at 4 weeks of culture was recorded in rhizome tips following sterilization treatment with Carbendazim 200 ppm for 30 minutes + HgCl2 (0.1 %) dip for 10 minutes and final treatment with ethyl alcohol (70 %) for 1 minute. Rhizome tips and rhizome section explants survived sterilant treatment better than other explants. MS-liquid medium supplemented with BAP + IBA: 1.5 + 0.2 mg l-l proved best for culture establishment (89.42 %) in case of rhizome tips and (56.13 %) in case of rhizome sections. MS-solid medium with plant growth regulator combinations BAP + IBA: 1.0 + 0.2 mg l-1 fortified with activated charcoal resulted in an establishment of (78.25 %) in rhizome tips and (40.24 %) in case of rhizome sections. Callus induction was highest in MS-solid medium fortified with BAP + NAA: 0.5 + 4.5 mg l-l. Rhizome tips cultured on MS-medium BAP + IBA + GA3 + Activated charcoal: 2.0 + 0.4 + 0.5 + 1000 mg l-l gave highest proliferation (88.85 %) along with highest number of erect shoots (5.75) , number of new rhizome buds ( 3.75), rhizome fresh weight/shoot complex (6.05), and multiplication index (2.76). Highest Rooting (54.81 %) along with lowest days to appearance of root (10.87), highest number of roots (3.12) and highest root length (16.42 mm) was recorded in MS-liquid medium fortified with NAA 1.5 mg l-1. Abbreviations used— AC; Activated charcoal, BAP; 6-Benzyl amino purine, BA; 6-Benzyladenine, 2, 4-D; 2, 4dichloro-phenoxyacetic acid,GA3; Gibberelic acid, IAA; Indole-3-acetic acid, IBA; Indole-3-butyric acid, MS; Murashige and Skoog's (1962) medium, NAA; Naphthalene acetic acid and µm; Micro molar.

Last modified: 2017-03-20 02:08:15