An improved plant regeneration of Vanilla planifolia Andrews

Abstract

Multiple shoots of Vanilla planifolia were induced from nodal explants under influence of different concentrations of plant growth regulators and coconut water (CW). A comparison of shoot regeneration between semi solid and liquid culture media was also investigated. Ninety seven per cent of the explants produced a mean number of 9.6 shoots with a mean shoot length of 4.70 cm when cultured on liquid MS supplemented with 1.0 mg/l BAP in combination of 15% CW. Shoots generated were rooted with frequency of 93% on MS supplemented with 1.0 mg/l NAA with a mean number of 2.9 roots per shoot and mean length of 4.0 cm within four weeks. The plantlets were transferred to sand: compost mixture(1: 2) with 85.0% survival rate recorded after four weeks of acclimation.