Facilitação por aechmea blanchetiana (Baker) L.B.Sm (bromeliaceae) na germinação e desenvolvimento de plantas na restinga

• Ano de defesa: 2023
• Autor(a) principal: Souza, Kamila Jesus de
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal do Espírito Santo; BR; Mestrado em Biologia Vegetal; Centro de Ciências Humanas e Naturais; UFES; Programa de Pós-Graduação em Biologia Vegetal
• Palavras-chave em Português: Interação positiva; Plantas enfermeiras; Restauração de restinga; Agronomia
• Link de acesso: http://repositorio.ufes.br/handle/10/12382

The interaction between the species Aechmea blanchetiana (Baker) L.B.Sm. (Bromeliaceae) and the germinated species, was evaluated to answer the following questions: (1) The abiotic factors differ under the canopy of this bromeliad when compared to sites with their absence (2) Resource availability is greater under the canopyof the bromeliad than the who us without the said species? (3) Does the bromeliad A. blanchetiana promote facilitation through germination in restinga environments? (4) does the effect of this bromeliad increase seedling survival? (5) Is the soil influenced by the presence of bromeliad? We evaluated the effect of the presence of the bromeliad Aechmea blanchetiana (Baker) L.B.SM. in the germination and development of species in a restinga area. The study was conducted at Centro Universitário Norte do Espírito Santo, in São Mateus, ES. Fruits of six species and soil samples were collected in a restinga area in the APA of Conceição da Barra, Conceição da Barra, ES. The experiment was organized in a randomized experimental design, consisting of three blocks. Each block contained a control (absence of bromeliad) and two treatments with the presence of bromeliad. For each block, we used 150 seeds, with five seeds of each species for each repetition. The germination percentage, germination speed index, average germination time, environmental variables, biometry attributes and biomass of the root and aerial part of the seedlings, organic matter and chemical analysis of the soil were evaluated. The results showed that the treatments with the presence of bromeliad favored the percentage and rate of germination speed, average time of germination and the survival of the studied species. In addition, it was observed that the parameters of biometrics and seedling biomass were positively influenced by the presence of bromeliad. A greater availability of resources was observed in the soil where the bromeliad was present. Based on these results, we conclude that A. blanchetiana acts as a facilitator plant, providing adequate conditions for the germination and establishment of the six studied species, both below their canopies and inside their tank. This facilitator plant softens the extreme conditions of the environment, allowing the growth of the studied species.