Abstract

MATOS RUIZ, Arturo et al. In vitro propagation of Moringa oleifera Lam. cultivars. cultrop [online]. 2016, vol.37, suppl.1, pp. 49-56. ISSN 1819-4087.

Moringa has leaves, flowers and fruit with a high level of vitamins, minerals and proteins of interest for the food and medical industries. This species can be propagated by seeds or cuttings, methods that not suitable to introduce new cultivars. The aim of this research was to establish an in vitro propagation protocol of different cultivars of Moringa oleifera Lam. To disinfect seeds three different disinfection times were evaluated five, seven and nine minutes in 10 gL^-1 sodium hipoclorite. Two methods for in vitro micropropagation were used: conventional system (semi-solid culture medium) and temporary immersion bioreactor. In the in vitro rooting phase, four concentrations of the naphthalene acetic acid and Indole butyric acid auxins (0; 2,5; 5,0 and 7,5 µmol L­^-1) were evaluated and also the kind of explant. The survival rates of the sprout during the acclimatization phase was evaluated in relation to their origin in the rooting phase. Besides the effect of the genotype on in vitro establishment and multiplication was determined. The disinfection of the Supergenius cultivar was better at seven minutes of treatment with sodium hipoclorite, with 54 % of germination. The Temporary Immersion Bioreactor increased the sprouts morphological quality and multiplication coefficient from 6,2 until 16,1 of the Supergenius cultivar. Rooting was successful without auxin and acclimatization survival was around 85 % at 35 days for shoots rooted without growth regulators, regardless of explant origin. It was shown that the genotype influenced the establishment and multiplication of explants

Keywords : cultivars; protocol; plant growth regulators.

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