Efecto de Trichoderma harzianum como bioestimulante en el crecimiento de plántulas de Swietenia macrophylla en condiciones de vivero

Cristian Santiago  Jácome Segovia; Yudel García Quintana; Jessy Paulina Guerrero Rubio; Yasiel Arteaga Crespo; Yamila Lazo Pérez; Arliet Morales

doi:10.59410/RACYT-v08n01ep04-0106

Authors

Cristian Santiago Jácome Segovia Universidad Estatal Amazónica
Yudel García Quintana Universidad Estatal Amazónica https://orcid.org/0000-0002-9107-9310
Jessy Guerrero Rubio Universidad Estatal Amazónica https://orcid.org/0000-0002-4714-3610
Yasiel Arteaga Crespo Universidad Estatal Amazónica https://orcid.org/0000-0002-9817-9883
Yamila Lazo Pérez Universidad Estatal Amazónica
Arliet Morales Investigador Independiente

DOI:

https://doi.org/10.59410/RACYT-v08n01ep04-0106

Keywords:

efficient microorganism, culture, forest species, morphology, indices

Abstract

In Ecuador, there are few works on germination and growth of Switenia macrophylla in nursery, as well as the application of efficient microorganisms that allow to verify the stimulatory effect in the nursery phase. Switenia macrophylla species, recognized for its economic and ecological importance, is in conditioned use, allowing researches to seek alternatives that promote it accelerated growth and development in Amazon conditions as a contribution to the genofund of this valuable forest resource. The aim of this study was to assess the biostimulant effect of Trichoderma harzianum on the growth of Swietenia macrophylla seedlings under forest nursery conditions. An experimental design was carried out with three treatments and a control at different doses. Morphological parameters of plants, the slenderness index, Dickson's quality, height / aerial dry weight, aerial dry weight / radical dry weight and fiber index were measured. The results of multivariate variance analysis showed that T3 which had a higher dose of Trichoderma (3x108) turned out the highest growth, diameter at the root neck, number of leaves, root volume, aerial and radical biomass; proving the biostimulant effect in plants morphology, a promising aspect to encourage producers to grow this species with the application of T. harzianun in forest nurseries. The hydric parameters, derived from the pressure-volume curves, showed significant differences among the control, T0 and T3, except for ѱ w0, which evidenced the effect of inoculation on water absorption capacity and the reflection on water relations. The response of the plants is important to achieve their physiological quality and regulate the irrigation conditions to achieve seedlings with greater roots and resistance to the conditions of the site.

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