https://repositorio.ifgoiano.edu.br/handle/prefix/5853 Wed, 15 Jul 2026 03:19:21 GMT 2026-07-15T03:19:21Z http://repositorio.ifgoiano.edu.br:80/retrieve/23956/Especilialização em bioinsumos _ IFGoiano.PNG https://repositorio.ifgoiano.edu.br/handle/prefix/5853 https://repositorio.ifgoiano.edu.br/handle/prefix/6776 Título: POTENCIAL DE Pantoea agglomerans COMO BIOFERTILIZANTE NA CULTURA DO MILHO (Zea mays L.): UMA REVISÃO DE ESCOPO Autor(es): Santos, Leidiomar Rodrigues Primeiro Orientador: Rabelo, Kassia Cristina de Caldas Abstract: Modern agriculture faces the challenge of reducing dependence on mineral phosphate fertilizers, which are finite resources and often exhibit low efficiency due to rapid immobilization in the soil. In this context, phosphorus-solubilizing microorganisms have emerged as a biotechnological alternative to promote more sustainable production systems. The present study consists of a scoping review aimed at mapping and synthesizing the available scientific evidence regarding the use of the bacterium Pantoea agglomerans as a biofertilizer in maize cultivation. The methodology involved a bibliographic survey in the Web of Science and Scopus databases, resulting in the selection of 15 articles for detailed analysis. The results demonstrate that P. agglomerans acts as a multifunctional plant growth-promoting bacterium (PGPB), employing mechanisms such as the solubilization of phosphorus, zinc, and potassium, the production of phytohormones (especially indole-3-acetic acid – IAA), and biological nitrogen fixation. The application of this bioinput in maize resulted in significant increases in biomass, plant nutritional content, and grain yield, in addition to contributing to tolerance to abiotic stresses such as drought and salinity. It is concluded that P. agglomerans has high potential for inclusion in commercial biofertilizers. However, there are still knowledge gaps related to performance consistency under field conditions and the need for large-scale studies to validate its commercial effectiveness. Editor: Instituto Federal Goiano Tipo: Trabalho de Conclusão de Curso Thu, 26 Mar 2026 00:00:00 GMT https://repositorio.ifgoiano.edu.br/handle/prefix/6776 2026-03-26T00:00:00Z https://repositorio.ifgoiano.edu.br/handle/prefix/6757 Título: APLICAÇÃO DE TRICHODERMA PARA PLANTIO DE GRÃOS: UMA REVISÃO Autor(es): Figueiredo, Flavio José Lopes Figueiredo Primeiro Orientador: Silva, Cintia Faria da Silva Abstract: Bio-inputs are playing an increasingly important role because they represent a more sustainable approach. To understand just how significant corn is in agriculture and why its cultivation requires attention through the use of bio-inputs, we highlight its contribution to Brazil’s GDP, with a significant and revealing value for the Brazilian economy. The study aims to investigate, through a literature review, strategies for pest control and the promotion of plant growth, with the goal of increasing productivity in a sustainable and chemical-free manner, focusing on authors who present these perspectives within the context of agriculture and crop improvement. Brazil has a large share of exports, which translates to a strong presence in the foreign market; in this sense, it is worthwhile to promote cultivation and highlight the use of key agents such as bio-inputs in the agricultural sector. We can highlight that one of the most widely used bio-inputs is Trichoderma, and to provide context, we can mention some products that have been used in different crops, such as corn, rice, and soybeans, among others. Thus, it is of utmost importance to emphasize how much Trichoderma has contributed to enabling and further improving our production. Editor: Instituto Federal Goiano Tipo: Trabalho de Conclusão de Curso Wed, 06 May 2026 00:00:00 GMT https://repositorio.ifgoiano.edu.br/handle/prefix/6757 2026-05-06T00:00:00Z https://repositorio.ifgoiano.edu.br/handle/prefix/6690 Título: AVALIAÇÃO DO POTENCIAL BIOHERBICIDA DO ÓLEO ESSENCIAL DAS FOLHAS DE Eugenia dysenterica (MART.) DC Autor(es): Vilela, Ailyn de Oliveira Primeiro Orientador: Burger, Marcela Carmen de Melo Abstract: Weed control represents a critical challenge in agriculture, accounting for estimated losses of about 34% in global productivity. Although the use of synthetic herbicides remains the predominant strategy, increasing environmental concerns and the emergence of resistance in invasive plants have driven the search for bioherbicides based on natural metabolites. In this context, essential oils emerge as promising sources of phytotoxic compounds capable of interfering with vital processes such as photosynthesis. The present study evaluated the bioherbicidal potential of the essential oil from the leaves of Eugenia dysenterica (Mart.) DC, a species native to the Brazilian Cerrado with recognized ecological and phytochemical relevance. The plant material was collected in Rianápolis, Goiás, Brazil, and the oil was extracted by hydrodistillation. Chemical characterization was performed using GC/MS and revealed the predominance of (E)- caryophyllene, myrcene, α-humulene, β-selinene, and (E)-β-ocimene. Phytotoxic activity was analyzed through chlorophyll a fluorescence assays in leaf discs of Spinacia oleracea. The results demonstrated that the essential oil of E. dysenterica causes severe damage to the photosynthetic apparatus in a dose-dependent manner, through a drastic reduction in performance indices (PIABS and PICSo) and in electron transport flux (ET0/CS0), as well as through the deactivation of reaction centers (RC/CS0). At concentrations above 100 mg L-1, its efficacy was comparable to the commercial herbicide DCMU. The inhibitory effects suggest direct interference with Photosystem II (PSII), possibly through blockage of electron transport at the quinone acceptor site. Therefore, it is concluded that the essential oil of E. dysenterica has significant potential for the development of bioinputs aimed at the sustainable management of weeds, combining biological efficiency with reduced environmental impacts. Editor: Instituto Federal Goiano Tipo: Trabalho de Conclusão de Curso Wed, 25 Mar 2026 00:00:00 GMT https://repositorio.ifgoiano.edu.br/handle/prefix/6690 2026-03-25T00:00:00Z https://repositorio.ifgoiano.edu.br/handle/prefix/6680 Título: ECONOMIA DA FIXAÇÃO BIOLÓGICA DE NITROGÊNIO EM ESPÉCIES DE FEIJÃO COMUM, CAUPI E MUNGO NO BRASIL Autor(es): Silvestre, Danilo Augusto Primeiro Orientador: Tavares, Germanna Gouveia Abstract: Biological nitrogen fixation (BNF) is a key factor in ensuring the sustainability of agricultural production and food security. This study aimed to estimate the economic savings generated by BNF in common bean (Phaseolus vulgaris), cowpea (Vigna unguiculata), and mung bean (Vigna radiata) production systems. Data on crop area, production, and productivity were obtained from the Brazilian Agricultural Censuses of 2006 and 2017. We estimated the amount of N (as urea) required to produce 1,000 kg of grain for each bean species in the absence of inoculation. The contribution of BNF to the N supply of each legume species was obtained from studies using the 15N natural abundance method. The economic benefits generated by BNF reached US$ 6 million for mung bean, US$ 59 million for cowpea, and US$ 119 million for common bean in 2017. The savings generated by BNF per hectare cultivated with common bean increased by 40% in 2017 compared with 2006, mainly due to the significant 64% increase in grain yield of this crop. Between 2006 and 2017, BNF maintained common bean as the main CO₂e-mitigating species, with stable values around 1.2 million tCO₂e. In contrast, cowpea showed a marked decline, from 1.22 million to 0.50 million tCO₂e, while mung bean decreased from 167 thousand to only 46 thousand tCO₂e, indicating a substantial reduction in the contribution of these species over the study period. This study highlights the importance of BNF in the production of these legume species, enabling reductions in nitrogen fertilizer use, increasing economic savings, and reducing greenhouse gas emissions in these production systems, thereby contributing to the sustainability of agricultural production. Editor: Instituto Federal Goiano Tipo: Trabalho de Conclusão de Curso Sun, 14 Jun 2026 00:00:00 GMT https://repositorio.ifgoiano.edu.br/handle/prefix/6680 2026-06-14T00:00:00Z