Journal of FARM SCIENCES, Vol 25, No 2 (2012)

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In vitro shoot multiplication and ex vitro rooting of cordyline (Cordyline sp.)

J.K. Chinnu, A.N. Mokashi, R.V. Hegde, V.S. Patil, R.V. Koti

Abstract


Cordyline is an important foliage plant and is commercially propagated by vegetative means. The present investigation was undertaken to develop a viable protocol for micropropagation of cordyline to bypass the slow rate of multiplication of traditional methods. Stem cuttings containing single nodes and shoot tips were used as explants after surface sterilization and tested for shoot multiplication and ex vitro rooting. Results indicate that response of explants on Murashige and Skoog's medium and further growth on medium with 6- Benzyl Amino Purine ( BAP) 4 mg/l, Naphthalene Acetic Acid (NAA) 0.5 mg/ l and Gibberelic Acid ( GA3 ) 5 mg/l produced the best shoot growth. Ex vitro rooting studies gave 85% rooting in different hardening media

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