Efecto del Trichoderma spp. en la propagación sexual de balsa (Ochroma pyramidale) y laurel (Cordia alliodora) en la comunidad de Nueva Esperanza, provincia de Napo.

Abstract

This study had the aim to test the effect of Trichoderma spp. in the sexual propagation of Balsa (Ochroma pyramidale) and Laurel (Cordia alliodora), determining if the treatments affect the development of plants. The trial included the phases of implementation of a temporary nursery, species identification, seed collection, substrate preparation, sheathing, sowing, inoculation of Trichoderma harzianum and T. longibrachiatum and irrigation. Data were taken at 15, 30, 45, 45, 60, 75 days, evaluating the variables, germination percentage, height, number of leaves, root length, fresh mass, leaf dry mass and root dry mass, a completely randomized design (CRD) was used, with 6 treatments and 4 replications, a Shapiro-Wilks test was performed to check normality. In the germination percentage Ochroma pyramidale in the treatment T1 with a high percentage of 100%, while the treatment T2 obtained a lower germination index of 95.00%, in the species of Cordia alliodora in the treatment T4 with a high percentage 97.50%, while the treatment T5 obtained a lower germination index of 92.50%. The application of Trichoderma harzianum showed a significant effect on the studied variables. It was evidenced that the application of Trichoderma longibrachiatum did not present a range of efficiency in comparison with the other treatments. It is concluded that the application of Trichoderma harzianum had a biostimulant effect on the plants studied in combination with the substrate of black soil (50%) + Mushroom (30%) + Sand (20%), it is suggested to carry out similar studies in other forest species of economic and ecological importance.