title: Inoculation ofSchizolobium parahybawith Mycorrhizal Fungi and Plant Growth-Promoting Rhizobacteria Increases Wood Yield under Field Conditions.
abstract: Schizolobium parahybavar.amazonicum(Huber ex Ducke) occurs naturally in the Brazilian Amazon. Currently, it is being planted extensively because of its fast growth and excellent use in forestry. Consequently, there is great interest in new strategies to increase wood production. The interaction between soil microorganisms and plants, specifically in the roots, provides essential nutrients for plant growth. These interactions can have growth-promoting effects. In this way, this study assessed the effect of the inoculation with arbuscular mycorrhizal fungi (AMF) and plant growth-promoting rhizobacteria (PGPR) on growth ofS. parahybavar.amazonicumunder field conditions. We used two native species of arbuscular mycorrhizal fungi,Claroideoglomus etunicatum(Ce), andAcaulosporasp. (Ac); two native strains ofRhizobiumsp. (Rh1 and Rh2); and a non-native strain ofBurkholderiasp. Different combinations of microorganisms were supplemented with chemical fertilizers (doses D1 and D2) in two planting methods, seed sowing and seedling planting. In seed sowing, the results showed that treatments with Ce/Rh1/Fertilizer D2 and Ac/No PGPR/Fertilizer D2 increased wood yield. In seedling planting, two combinations (Ac/Rh2/Fertilizer D1 and Ac/Rh1/Fertilizer D1) were more effective in increasing seedling growth. In these experiments, inoculation with AMF and PGPR increased wood yield by about 20% compared to the application of fertilizer alone.
authors.affiliation: Laboratório de Ecologia Microbiana, Departamento de Microbiologia, Universidade Estadual de Londrina Londrina, Brazil.
authors.forename: Martha V T
authors.initials: MV
authors.lastname: Cely
authors.affiliation: Grupo Arboris-Manejo Florestal Dom Eliseu, Brazil.
authors.forename: Marco A
authors.initials: MA
authors.lastname: Siviero
authors.affiliation: Laboratório de Ecologia Microbiana, Departamento de Microbiologia, Universidade Estadual de Londrina Londrina, Brazil.
authors.forename: Janaina
authors.initials: J
authors.lastname: Emiliano
authors.affiliation: Laboratório de Ecologia Microbiana, Departamento de Microbiologia, Universidade Estadual de Londrina Londrina, Brazil.
authors.forename: Flávia R
authors.initials: FR
authors.lastname: Spago
authors.affiliation: Laboratório de Ecologia Microbiana, Departamento de Microbiologia, Universidade Estadual de Londrina Londrina, Brazil.
authors.forename: Vanessa F
authors.initials: VF
authors.lastname: Freitas
authors.affiliation: Laboratório de Ecologia Microbiana, Departamento de Microbiologia, Universidade Estadual de Londrina Londrina, Brazil.
authors.forename: André R
authors.initials: AR
authors.lastname: Barazetti
authors.affiliation: Laboratório de Ecologia Microbiana, Departamento de Microbiologia, Universidade Estadual de Londrina Londrina, Brazil.
authors.forename: Erika T
authors.initials: ET
authors.lastname: Goya
authors.affiliation: Laboratório de Ecologia Microbiana, Departamento de Microbiologia, Universidade Estadual de Londrina Londrina, Brazil.
authors.forename: Gustavo de Souza
authors.initials: GS
authors.lastname: Lamberti
authors.affiliation: Laboratório de Ecologia Microbiana, Departamento de Microbiologia, Universidade Estadual de Londrina Londrina, Brazil.
authors.forename: Igor M O
authors.initials: IM
authors.lastname: Dos Santos
authors.affiliation: Laboratório de Ecologia Microbiana, Departamento de Microbiologia, Universidade Estadual de Londrina Londrina, Brazil.
authors.forename: Admilton G
authors.initials: AG
authors.lastname: De Oliveira
authors.affiliation: Laboratório de Ecologia Microbiana, Departamento de Microbiologia, Universidade Estadual de Londrina Londrina, Brazil.
authors.forename: Galdino
authors.initials: G
authors.lastname: Andrade
keywords: Amazon forest; Schizolobium parahyba; microorganism interaction; mycorrhizal inoculant; reforestation