Propagación ex situ de Aulonemia queko con diferentes concentraciones de ácido indolbutírico y tres sustratos en Cuenca – Provincia del Azuay

Abstract

Currently, Aulonemia queko is considered an ecological alternative. It provides an environmental service that protects water sources since worldwide deforestation and forest degradation have caused a massive loss of biodiversity and a decrease in services systemic echoes. The present study has the objective of propagating Aulonemia queko, evaluating the effect of indolebutyric acid at different concentrations (1 ppm, 3 ppm, 5 ppm), different substrates (substrate, mulch, and peat), in shoots with rhizome and without rhizome at the level of a nursery in the Cuenca canton, Azuay province, for which a DCA was used, with a factorial arrangement (2a x 3b x 4c) with 24 treatments and three repetitions made up of 6 observation subunits. The analysis of the results was carried out through the Di Rienzo, Guzman, and Casanoves (DGC) marginal hypothesis test. (P < 0.05) obtaining in the survival variable as the best substrate the mulch with a dose of AIB 1 ppm with 86.11 % survival, concerning the diameter, length, number of leaves, and number of internodes. Better results were obtained with the mulch as a substrate and 1-3 ppm as a dose of AIB. For the length and number of roots, good results were achieved with the use of mulch and a dose of 1 ppm of AIB. However, in the propagule-substrate-dose interaction, the best treatments were the propagules with rhizome-peat-1 ppm. The propagules with rhizome × mulch × 3 ppm yielded higher values in underground biomass. With this study, we contribute to establishing an efficient propagation method, to obtain quality seedlings, which allow them to be implemented in various ecosystems in the country, and thereby encourage the population to use the species to undertake reforestation processes in forests.