Abstract

GIL RIVERO, Armando Efraín; LOPEZ MEDINA, Segundo Eloy  and  LOPEZ ZAVALETA, Angélica. Acclimation of in vitro seedlings of Saintpaulia ionantha H.Wendl. (Gesneriaceae) "African violet" to greenhouse conditions. Arnaldoa [online]. 2017, vol.24, n.1, pp.343-350. ISSN 1815-8242.  http://dx.doi.org/10.22497/arnaldoa.241.24116.

African violets" Saintpaulia ionantha H.Wendl. (Gesneriaceae) are ornamental plants very valued in the world for their beauty and ability to give flowers throughout the year. This has brought an increase in their demand, as they are suitable for decorating interior spaces at home. That is the reason because their cultivation for commercial purposes has increased, and the propagation in vitro and its subsequent acclimation is a good alternative of entrepreneurship in floriculture. However, the scarce information of ex vitro acclimation of S. ionantha leads us to propose a standard acclimation protocol. For this purpose, we selected in vitro seedlings from the Biotechnology Laboratory of the Potato and Andean Crops Institute. They were transported to greenhouse for planting using different substrates consisting of: T1 = sand + moss + humus; T2 = sand + moss; T3 = sand + humus and T4 = sand. Statistically significant differences were found, with treatment T1 showing a good percentage of acclimated plants, the biggest percentage of rooted plants, the biggest average number of leaves, the biggest average number of normal roots and the biggest average leaf length and width. It was concluded that the substrate constituted by sand + moss + humus is the most optimal for ex vitro acclimation of S. ionantha.

Keywords : acclimation; seedlings; in vitro; Saintpaulia; african violet.

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