PROGRAMA DE PÓS-GRADUAÇÃO EM BIODIVERSIDADE E CONSERVAÇÃO - PPGBC

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    Diversidade e eficiência de rizóbios simbiontes de leguminosa arbórea na Amazônia oriental
    (Universidade Federal do Maranhão, 2021-12-20) SOUZA, Juliana Lima Brito; COELHO, Kátia Pereira; http://lattes.cnpq.br/7656587511436822; AGUIAR, Alana das Chagas Ferreira; http://lattes.cnpq.br/7656587511436822; AGUIAR, Alana das Chagas Ferreira; http://lattes.cnpq.br/7656587511436822; CORRÊA, Thaís Roseli; http://lattes.cnpq.br/3415407798108175; BARRETO, Bruno de Souza; http://lattes.cnpq.br/2022301821222852; COSTA, Patrícia Freitas; http://lattes.cnpq.br/7720775577946094
    Among the challenges to mitigate the low efficiency of waste use in tropical is the understanding of the processes involved in the efficiency of the symbiosis between trees and legumes. In this context, the present work aims to evaluate the phenotypic diversity of rhizobia in symbiosis with Gliricidia sepium, isolated from Amazonian soil, as well as their efficiency in comparison with commercial inoculant and chemical nitrogen fertilization. For the setup of the experiment in a greenhouse and isolation of native rhizobia were used containing soils from a pasture area and an area with secondary pots in position for ten years, using sepium as a trap. Plant development was evaluated using three sources from the native community: control (native bacteria present in the soil); inoculant; and chemical nitrogen fertilizer. As measured variables they serve to construct a plant development index (VDI). The results point to a compatibility of the native rhizobia community with an exotic legume in both responses, with a proposal of equality of results or superior to the alternative treatments of nitrogen and inoculation with recommended strains. Nodular natives were found in the symbiotic use area similar to natural treatments 1, isolated and identified as using the organic source or potentially rich in the use of the organic source for the recovery of degraded areas.