Micropropagation of banana (Musa acuminata) through proliferation of axillary shoots

POOJA MANCHANDA; AJINDER KAUR; SATBIR SINGH GOSAL

doi:10.56093/ijas.v82i5.17811

Authors

POOJA MANCHANDA School of Agricultural Biotechnology, Punjab Agricultural University, Ludhiana 141 004
AJINDER KAUR School of Agricultural Biotechnology, Punjab Agricultural University, Ludhiana 141 004
SATBIR SINGH GOSAL School of Agricultural Biotechnology, Punjab Agricultural University, Ludhiana 141 004

https://doi.org/10.56093/ijas.v82i5.17811

Keywords:

Banana, Micropropagation, Multiplication rate, Sucker, Shoot-tip

Abstract

An efficient and reproducible micropropagation protocol was developed for mass multiplication of the elite banana (Musa acuminata L.) cultivar Grand Naine through axillary shoot proliferation. In vitro multiplication of banana was studied. Conventional propagation through suckers has disadvantages like low multiplication rate (5 to 10 in number depending upon variety), lack of uniform plant size and transmission of pathogens from one generation to the next generation. Application of micropropagation technique for large scale production of elite clones is an effective and superior alternative to propagation through conventional cuttings of Musa spp. Shoot tips were cultured on MS medium supplemented with 5.0 mg/l BAP. Observations were recorded at the end of each subculture, after three weeks of shifting on a new medium. It was noted that suckers of same genotype exhibited different shoot multiplication rates under in vitro conditions. On an average, upto 175.57 shoots were produced from each shoot tip after seven subculturings.

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