Abstract
A novel micropropagation protocol was established for Capsicum frutescens L. cv. ‘Uchithi’, a pungent chilli cultivar, through induction of axillary shoot proliferation of in vitro raised plantlets by decapitation and using the axillary shoots as explants for multiple shoot bud induction. About 2–6 axillary shoots were induced within 2 weeks when 4-week-old in vitro raised plantlets were decapitated. The axillary shoot-tip explants produced multiple shoot buds when cultured on Murashige and Skoog's (MS) medium containing 8.8–44.4 μM 6-benzylaminopurine (BAP) or 9.3–46.7 μM kinetin alone or 8.8–44.4 μM BAP with 4.6 μM kinetin or 5.7 and 28.5 μM indole-3-acetic acid (IAA). Maximum number of shoots (5.6) were induced on medium containing 22.2 μM BAP in combination with 4.65 μM kinetin. The separated shoots rooted and elongated on medium containing 2.8 μM IAA or 2.4–4.9 μM indole-3-butyric acid (IBA). Rooted plantlets were successfully established in the soil. Efficient mass multiplication of this important food crop was achieved.
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