Inoculación de micorriza arbuscular y su incidencia en el crecimiento inicial de tres especies forestales en la fase de vivero.

This research was carried out in Los Ríos province, canton Quevedo, parish 7 October, at reference point 17 S 669931. 06 longitude and 9884365.76 latitude. The overall objective was to evaluate the inoculation of arbuscular mycorriza and its impact on the initial growth of three forest species in the nursery phase. Specifically, it was sought to determine the percentage of mycorrcozic colonization, quantify the density of spores and analyze the growth of dasometric variables in the plants of Tectona grandis L.f. Gmelina arborea Roxb. and Ochroma pyramidale (Cav. ex. Lam) Urb. The plants germinated in sterilized black earth substrate and were inoculated at 15 days of age for each species, the treatments used consisted of T1: liquid mycorrcorgeic consortium, T2: solid mycorrcorgeic consortium and T3: irrigation water. The mycorrcocycical consortium of treatments are of the genus Glomus. The first evaluation was carried out 15 days after inoculation, taking data on plant height and diameter, subsequent observations were made at 30, 45 and 60 days were then taken to the laboratory to evaluate the variables of fresh aerial and root weight, air and root dry weight, root length (RL), root length by soil volume (Rlv), spore density at 50 g wet soil sample (gsh-1) and percentage of visual density of mycorrhazic colonization at the root. The results were analyzed by the SPSS 13.0 statistical program by performing a variance analysis where it was obtained as results that most of the measured variables had a significant difference in the three species under study with the exception of RL and RLv that had no significant difference in any of the species and diameter that did not have a significant difference in G. arborea. Treatment with the highest values in most variables was Liquidated, followed by Solid and Witness with the lowest values. Therefore, it is assumed that inoculation with arbuscular mycorriza significantly affects the growth of the plant in a beneficial way, promotes its dasometric development in addition to other positive aspects. Keywords: Inoculation, colonization, Glomus, arbuscular.

• Auteur principal: Toala Vera, Juan Carlos (author)
• Format: bachelorThesis
• Langue: spa
• Publié: 2021
• Sujets: Inoculación; Colonización; Glomus; Arbuscular
• Accès en ligne: https://repositorio.uteq.edu.ec/handle/43000/6334