Efecto de Trichoderma spp. en el desarrollo de dos especies forestales aliso (Alnus acuminata), eucalipto (Eucalyptus globulus) a nivel de vivero forestal en la ESPOCH.

Abstract

This research aimed to evaluate the vegetative development in the nursery garden of Alder (Alnus acuminata), propagated by stake and eucalyptus (Eucalyptus globulus), propagated by seed when different species of Trichoderma, T. harzianum, T. longibrachiatum were applied at the nursery garden level. For this, a bifactorial random complete block design was used. The comparison was used through the 95% confidence intervals for the separation of means of the different treatments. The variables evaluated in each of the species were: total height of the plants, number of leaves and fresh weight. The frequency of applications of the two Trichoderma species was 15 days, totaling the number of 3 applications in the nursery garden stage. The average inoculum concentration for each of the species was 1x10 ^ 7 cfu / ml. T. harzianum showed a greater effect on vegetative development, especially in the variables height, total number of leaflets and fresh weight of Eucalyptus. However, this effect was not so marked, which was reflected in the confidence intervals that did not show significant statistical differences in the time that the variables were evaluated. T. longibrachiatumno showed an effect on any of the variables or forest species evaluated. New studies are necessary, especially with a longer evaluation time, with other propagation methods, with new forest species to more efficiently select beneficial fungi that can be used as growth promoters at the nursery garden level of forest species.