Contribución de enmiendas biológicas sobre el crecimiento y supervivencia de plántulas de Weinmannia fagaroides kunth, en condiciones de invernadero, en la provincia del Azuay

Abstract

Biological amendments can contribute microorganisms that help improve practices for the establishment and development of native forest plants; ensuring nursery and field propagation efforts for restoration purposes. The objectives of this experimental study were the following: 1) To evaluate the effect of inoculation of native soil and commercial arbuscular mycorrhiza (HMA) on growth, aerial biomass, root biomass and survival in Weinmannia fagaroides seedlings. 2) To evaluate the percentage of mycorrhizal colonization in the roots of Weinmannia fagaroides seedlings and 3) Molecularly characterize microorganisms present in native soil where the species Weinmannia fagaroides naturally grows. The results showed that the seedlings cultivated with native inoculum, sterile native, commercial HMA and control did not present different growths in 180 days of monitoring, in the variables of diameter, height and biomass. However, survival was greater with the amendment of native and sterile native soil inoculum compared to commercial HMA and control amendments. In addition, the native inoculum obtained a higher percentage of colonization of structures associated with fungi compared to commercial HMA amendment and control. Also, a total of 161 species of bacteria and 88 species of fungi were identified. These results suggest that inoculation with native soil amendment can increase survival and maintain the diversity of beneficial microorganisms capable of interacting with Weinmannia fagaroides seedlings.