ABSTRACT
The direct organogenesis from nodal meristems of Peperomia pellucida L. was reported in this
study. The explants were sterilized using 0.1% mercuric chloride. Since, the plant tissues are very soft
and delicate 3 min treatment is optimum for surface sterilization of the explants. The adventitious
shoots were induced on MS medium augmented with 2.0 mg/L BAP. Maximum 96% explants
responded on this medium combination with 12.6 ±0.74 shoots per explant (4.2 ±0.44 cm average
lengths). The shoots were further multiplied on MS medium + 0.5 mg/L each of BAP and Kin,
resulted in maximum shoots formation (127.2 ±0.30 shoots per explant with 7.7 ±0.30 cm in length)
after 4 week. The effects of auxins were tested for induction of in vitro roots from the cut ends of the
shoots. The in vitro multiplied shoots were rooted on half strength MS medium fortified with 1.5 mg/L
IBA. Maximum number of roots per shoot (10.8 ±0.39 roots with 6.8 ±0.33 cm length) was induced
with IBA as compared to IAA. The rooted plantlets were carefully removed from the medium, washed
properly and transferred to the paper cups contained soilrite. These were kept in the greenhouse for 4-
6 weeks and moistened with aqueous solution of one-fourth strength MS salts. The hardened plantlets
were finally transplanted in the field under natural conditions with 100% survival rate. The developed
protocol can be used for mass multiplication of this medicinal plant which can help to fulfill the gap in
the demand and supply of this epiphytic medicinal plant.
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