Efecto de extractos de metabolitos de dos aislados nativos Trichoderma sp. sobre el crecimiento y desarrollo de brotes juveniles de melina (Gmelina arborea Roxb. ex Sm.) bajo condiciones de minitúnel

Abstract

The study was performed in two stages, both under conditions of minitunel. In the first, extracts of metabolites and biomass of two isolates of Trichoderma spp (LaBioTD37, MOTrh coded) was applied individually and jointly with indole butyric acid (rooting hormone). The analysis of the results showed that the lowest shoot mortality were recorded for treatments corresponding to MOTrh (T2), LaBioTD37 (T3), MOTrh+rooting (T5), LaBioTD37+rooting (T6) and MOTrh+LaBioTD37+rooting (T7). The latter treatments (T6 and T7), showed the highest rooting percentage (97,5% and 95% respectively). Statistically it was determined that the combination of each isolate with rooting hormone (T5, T6, T7) increased the number of roots per shoot, showing greater root length compared with the control. In the second stage, it was determined that the mixture MOTrh+ LaBioTD37 applied to the base of the shoot and inoculated the pellet (T6),