Programa de Pós Graduação em Ciências Agrárias - Agronomia (PPGCA - AGRO) https://repositorio.ifgoiano.edu.br/handle/prefix/215 2026-08-22T23:13:57Z 2026-08-22T23:13:57Z Silva, Igor Eli da https://repositorio.ifgoiano.edu.br/handle/prefix/6882 2026-08-12T23:49:05Z 2025-09-26T00:00:00Z

Título: RESÍDUO DE TANQUES DE CULTIVO DO PEIXE PINTADO COMO ALTERNATIVA PARA A PRODUÇÃO DE TOMATE TIPO 'GRAPE': CARACTERÍSTICAS FISIOLÓGICAS, CRESCIMENTO E COMPONENTES DE PRODUÇÃO Autor(es): Silva, Igor Eli da Primeiro Orientador: Costa, Alan Carlos da Primeiro Membro da Banca: Costa, Alan Carlos da Segundo Membro da Banca: Vidal, Roberto Gomes Terceiro Membro da Banca: Teixeira, Marconi Batista Abstract: Modern agriculture faces the challenge of ensuring food security while mitigating environmental impacts associated with the intensive use of synthetic fertilizers. In parallel, aquaculture generates nutrient-rich waste that constitutes an environmental liability. This thesis validated the potential of solid waste from pintado (Pseudoplatystoma corruscans) farming as a biofertilizer in 'Sweet Heaven' tomato plants. The effects of five substrate substitution doses (0, 15, 30, 45, and 60%) on agronomic, physiological, and metabolic characteristics were investigated in two complementary experiments. Results demonstrated that residue from earthen ponds positively impacted plant vigor and physiology, with a linear increase in photosynthetic rate and stem diameter as doses increased. Although fresh fruit mass did not statistically differ among treatments, quality showed marked improvement: the 30% dose provided the highest total soluble solids content (°Brix). However, high doses (from 45% onwards) induced a physiological cost, evidenced by increased lipid peroxidation (MDA) and activation of antioxidant enzymes (SOD, CAT, and POX), particularly in the vegetative stage. It is concluded that pintado waste is a high-potential input, with the 30% to 45% range recommended to optimize fruit quality and physiological performance without compromising production. Editor: Instituto Federal Goiano Tipo: Tese

2025-09-26T00:00:00Z Costa, Hindenburg Cruvinel Guimarães da https://repositorio.ifgoiano.edu.br/handle/prefix/6860 2026-08-07T12:54:19Z 2026-06-25T00:00:00Z

Título: BIOPROSPECÇÃO DOS EXTRATOS HEXÂNICOS DE ASPIDOSPERMA SUBINCANUM (guatambu) E SUAS BIOATIVIDADES Autor(es): Costa, Hindenburg Cruvinel Guimarães da Primeiro Orientador: Fernandes, Cassia Cristina Primeiro Membro da Banca: Fernandes, Cassia Cristina Segundo Membro da Banca: Silva, Elizabeth Aparecida Josefi da Terceiro Membro da Banca: Ferreira Júnior, Walnir Gomes Abstract: The biodiversity of the Brazilian Cerrado represents an important source of secondary metabolites with potential pharmaceutical and agro-industrial applications, particularly species of the Apocynaceae family, such as Aspidosperma subincanum, which is traditionally used in folk medicine. In this context, the objective was to bioprospect hexane extracts from the leaves and bark of A. subincanum, evaluating their chemical composition and biological activities. The extracts were obtained by maceration using hexane as a solvent and characterized by gas chromatography coupled with mass spectrometry (GC-MS), allowing the identification of volatile compounds, mainly sesquiterpenes. The extracts were subjected to biological assays to evaluate their antibacterial activity against the bacterium Xanthomonas citri, as well as their ability to inhibit the enzymes acetylcholinesterase, elastase, and α-amylase. In addition, molecular docking analysis was performed to investigate the interactions between the identified compounds and biological targets. The results demonstrated antibacterial activity and significant enzymatic inhibitory potential, indicating the presence of bioactive metabolites with possible applications in plant pathogens control and in the development of therapeutic agents for neurodegenerative and metabolic diseases. The molecular analyses reinforced the affinity of the identified compounds for studied targets. The hexane extracts of A. subincanum exhibit biotechnological potential, highlighting the relevance of the Cerrado flora as a source of bioactive natural products. Editor: Instituto Federal Goiano Tipo: Tese

2026-06-25T00:00:00Z Martins, Vanéria Paula Sousa https://repositorio.ifgoiano.edu.br/handle/prefix/6851 2026-08-04T19:33:44Z 2026-07-01T00:00:00Z

Título: AÇÕES PARA A ALFABETIZAÇÃO CIENTÍFICA E A POPULARIZAÇÃO DA CIÊNCIA POR MEIO DE PRÁTICAS PEDAGÓGICAS ENVOLVENDO O ESTUDO DAS ABELHAS JATAÍ E A AGRICULTURA VERTICAL Autor(es): Martins, Vanéria Paula Sousa Primeiro Orientador: Silva, Fabiano Guimarães Abstract: Contemporary education faces the challenge of preparing students for a technological and complex world, demanding skills that surpass the traditional teaching model, which is frequently theoretical and decontextualized. Given this scenario, this study aimed to analyse the impacts of investigative intervention actions focused on the scientific literacy of 8th and 9th-grade students in Elementary School; to popularize science through the integration between basic education schools and higher education; and to evaluate the effects of a science fair in promoting environmental education. The methodology, of an applied and investigative nature, consisted of pedagogical interventions and field work were carried out at the Plant Biotechnology Laboratory Complex of IF Goiano and at CEPI Maria Ribeiro Carneiro, in Rio Verde, Goiás. The practical activities integrated two scientific and technological fronts: the ecological and pollination study with the Jataí bee (Tetragonisca angustula) and the controlled cultivation of strawberries in an urban vertical farming system with supplemental artificial LED lighting. As results and a practical development of the doctoral research, an Educational Product aimed at teacher training was conceived: the self-instructional MOOC course entitled “Scientific Literacy in Basic Education”, hosted on the IF Goiano platform. It is concluded that the insertion of inquiry-based teaching and science popularization acts as a transformative tool to reduce the weaknesses of traditional teaching, promoting intellectual autonomy, students' critical thinking, and effectively bringing the school community closer to scientific knowledge and socio-environmental preservation. Editor: Instituto Federal Goiano Tipo: Tese

2026-07-01T00:00:00Z Silva, Marlus Dias https://repositorio.ifgoiano.edu.br/handle/prefix/6764 2026-07-02T19:31:23Z 2026-07-02T00:00:00Z

Título: AGRICULTURA VERTICAL DE PRECISÃO APLICADA A MICROVERDES DE LENTILHA E GERGELIM: TELEMETRIA AUDITÁVEL, MANEJO LUMINOSO E EFICIÊNCIA ENERGÉTICA DA PRODUÇÃO DE BIOMASSA Autor(es): Silva, Marlus Dias Primeiro Orientador: Silva, Fabiano Guimarães Abstract: This thesis investigated artificial lighting strategies and digital infrastructure applied to precision vertical farming, with emphasis on microgreens cultivated under controlled environment conditions. The work integrated two main axes: the evaluation of light spectra and temporal lighting regimes on the physiological and productive performance of microgreens, and the development of an open and auditable IoT architecture for control, monitoring, and experimental data recording in indoor cultivation systems. In the study with lentil microgreens, constant lighting regimes, especially under red, white, and RBW light, favored biomass production and energy efficiency, whereas the Gaussian regime showed greater potential to stimulate carotenoid accumulation. In the study with sesame microgreens, the Precision Vertical Farming System (PVFS) was developed and validated, enabling the execution of dynamic PPFD profiles, environmental and electrical telemetry recording, and the integration of metrics such as Areal Energy Consumption (AEC), Specific Energy Consumption (SEC), and Energy-to-Mass Efficiency (EEMS). The results demonstrated that DLI equivalence does not guarantee equivalent energy performance, with the Red–Constant treatment showing the best energy–biomass relationship. This thesis contributes by demonstrating that precision vertical farming must integrate biological response, energy efficiency, and digital traceability to achieve greater experimental robustness, reproducibility, and operational rationality. Editor: Instituto Federal Goiano Tipo: Tese

2026-07-02T00:00:00Z