http://repositorio.ufc.br/handle/riufc/21984 2026-04-08T17:56:19Z 2026-04-08T17:56:19Z Nascimento, João Victor Oliveira Mendes http://repositorio.ufc.br/handle/riufc/83991 2025-12-26T18:41:33Z 2025-01-01T00:00:00Z

Título: A construção do sistema participativo de garantia da qualidade orgânica e agroecológica da produção – SPG- cooperativa central das áreas da reforma agrária do Ceará Autor(es): Nascimento, João Victor Oliveira Mendes Abstract: This work aims to analyze the development of the Participatory Guarantee System (PGS) of the Central Cooperative of Agrarian Reform Areas of Ceará (CCA), in the context of organic and agroecological production certification in Brazil. The study starts from the recognition of the limitations of traditional third-party certification models and highlights the importance of PGS as more accessible and socially appropriate instruments for the reality of family farming. The adopted methodology is qualitative and exploratory, based on literature review, document analysis, semi-structured interviews technicians involved in the certification process, and field visits to productive units associated with the CCA's PGS. From the historical and legal contextualization of organic production in the country, the study identifies the main regulatory and institutional frameworks that enabled the recognition of PGS as legitimate forms of organic conformity assessment, especially Law No. 10.831/2003 and Normative Instruction No. 19/2009 from the Ministry of Agriculture. The results show that the CCA experience is deeply linked to the trajectory of the Landless Workers' Movement (MST) in the state and to the implementation of agro-industries supported by public policies such as the São José Project. The CCA’s PGS shows significant progress in strengthening farmers’ agroecological identity, increasing access to markets, and enhancing collective social control practices. However, it still faces challenges such as the need for technical training, member turnover, and increased institutional support. It is concluded that the PGS represents a powerful strategy for building autonomy and food sovereignty in agrarian reform settlements, constituting a viable alternative to conventional certification and a tool for democratizing access to healthy food production and consumption. Tipo: TCC

2025-01-01T00:00:00Z Cantudo, Leonardo Nogueira http://repositorio.ufc.br/handle/riufc/83990 2025-12-26T18:23:00Z 2025-01-01T00:00:00Z

Título: Fatores determinantes do desenvolvimento rural em Pacajus-CE: uma análise multidimensional Autor(es): Cantudo, Leonardo Nogueira Abstract: This study aims to diagnose the main conditioning factors of rural development in the municipality of Pacajus, in the state of Ceará, Brazil, through a multidimensional analysis encompassing productive, socioeconomic, environmental, and institutional aspects of local agricultural establishments. The research employs a quantitative, descriptive, and exploratory methodology, based on secondary data from official sources, systematized and organized into seven analytical dimensions: technical, productive, sustainable management, socioeconomic, public policies, land use, and institutional capacity. The analysis enabled the construction of a robust diagnosis of the municipality's rural reality and supported the development of a SWOT (short for strengths, weaknesses, opportunities, threats) matrix to identify strengths, weaknesses, opportunities, and threats to sectoral development. The results reveal that the municipality exhibits low agricultural mechanization, limited adoption of sustainable environmental practices, poor performance in public policies supporting farmers, and increasing rural exodus. Despite this, there is productive potential linked to family farming, perennial crops such as cashew, and the role of cooperatives and associations. However, the aging rural population, excessive pesticide use, lack of technical assistance, and weaknesses in local governance compromise the sustainability of rural development. The study also highlights the role of public policies as an essential factor, though their effectiveness is limited by bureaucratic obstacles and low coverage of federal and municipal programs. Based on the SWOT analysis, strategies were proposed to strengthen local agriculture, emphasizing the promotion of family farming, incentives for sustainable technologies, expanded access to public policies, and the valorization of traditional knowledge. The study also aligns with the Sustainable Development Goals (SDGs), particularly SDGs 1, 2, 8, 13, and 15. It concludes that strengthening Pacajus' rural zone requires integrated planning, public investments, and emancipatory policies that promote the permanence of families in rural areas while ensuring a balance between economic development, social justice, and environmental preservation. Tipo: TCC

2025-01-01T00:00:00Z Silva, João Felipe Gonçalves da http://repositorio.ufc.br/handle/riufc/83989 2025-12-26T17:37:18Z 2025-01-01T00:00:00Z

Título: Análise fitoquímica experimental em microverdes de coentro produzidas em luz branca e proporções de luz vermelha e azul Autor(es): Silva, João Felipe Gonçalves da Abstract: Microgreens are plants with cotyledons present and up to one pair of developed leaves. They are considered superfoods and harvested before their physiological maturity point, in addition to having a higher concentration of metabolites, vitamins and minerals, making them ideal for human consumption. In this context, coriander (Coriandrum sativum) stands out as a viable species for cultivation in this production style due to its compact size, short harvest period and health benefits. Therefore, the objective of this study was to conduct an experimental phytochemical analysis of coriander microgreens under different light ratios to identify the presence or absence of major bioactive metabolite groups. The study was conducted at the Northeast Olericulture Study Center (NEON), where polypropylene trays were filled with washed coconut coir and vermiculite in a 5:1 ratio. Sowing was done using the SSS system (substrate - seed - substrate), with 17g of coriander seeds from the Verdão cultivar distributed per tray. These trays were irrigated with distilled water to field capacity, a condition maintained until the 4o DAS. The trays were placed on metal shelves, where three LED strips were installed for plant lighting and the treatments consisted of different light qualities for coriander microgreen cultivation, with white light as control and three red (R) to blue (B) light ratios, described as 3R:1B, 4R:1B and 5R:1B. The experimental design was randomized blocks, with each shelf representing a block with 4 replicates, and each block containing 3 trays. Factors such as photoperiod and temperature were controlled, and from the 4o DAS onward, the trays were irrigated with Hoagland and Arnon (1950) solution at ¼ strength. Harvesting was performed on the 15o DAS and three trays from each treatment were randomly selected for fresh weight determination, phytochemical and physicochemical analyses. Tests were performed to detect the presence of the following metabolites: steroids and triterpenes, anthraquinones, saponins, tannins, reducing sugars, flavonoids, anthocyanins, cardiac glycosides, coumarins, alkaloids and amides. In the physicochemical analyses, titratable acidity was determined. Quantitative variables such as fresh weight and titratable acidity were subjected to ANOVA and compared by Tukey's test at 5% significance. The results showed that the light spectrum influences biomass gain, with the best results achieved by the 4R:1B and 5R:1B treatments. The qualitative analysis demonstrated the presence of bioactive compounds, but a homogeneous profile among treatments, indicating little or no influence on the detected metabolites, suggesting a genetic factor in the composition of these compounds in plants during their juvenile stage. Tipo: TCC

2025-01-01T00:00:00Z Mota, Kele da Silva http://repositorio.ufc.br/handle/riufc/83988 2025-12-26T17:21:07Z 2025-01-01T00:00:00Z

Título: Contribuição de Bacillus aryabhattai e silício em Mimosa caesalpiniifolia sob estresse hídrico: respostas morfofisiológicas e atividade biológica do solo Autor(es): Mota, Kele da Silva Abstract: Mimosa caesalpiniifolia Benth. (commonly known as sabiá) is a native leguminous tree used in agroforestry systems, the recovery of degraded areas, and wood production. Despite its rustic nature, its seedlings are sensitive to water deficit during the initial growth stage, which compromises performance, especially in semiarid regions. Sustainable strategies, such as the use of plant growth-promoting microorganisms and beneficial elements like silicon (Si), have been studied to enhance drought tolerance. Bacillus aryabhattai stands out for its ability to solubilize phosphorus, produce phytohormones, and stimulate microbial activity. Silicon, in turn, helps mitigate abiotic stresses by strengthening plant structures and activating antioxidant mechanisms. This study evaluated the effects of inoculation with B. aryabhattai and silicon application on growth, plant physiology, and soil microbial activity in sabiá seedlings under water stress conditions, using different irrigation levels (50% and 100% of field capacity). The experiment was conducted in a greenhouse using a completely randomized factorial design (2×4), considering: (i) treatments (control, B. aryabhattai, silicon, and B. aryabhattai + silicon) and (ii) irrigation levels (50% and 100%), with four replicates. Morphological variables, quality indices, photosynthetic pigments, water use efficiency, and microbiological and enzymatic indicators of the soil were evaluated. Full irrigation resulted in the greatest morphological and seedling quality gains. However, even under stress, the combination of silicon and B. aryabhattai promoted gains in plant height, stem diameter, robustness index, and leaf pigmentation. Water use efficiency was higher under stress conditions, suggesting physiological adaptation. Microbial and enzymatic soil activity was mainly stimulated by B. aryabhattai, with notable increases in basal respiration, microbial biomass carbon, and the metabolic quotient. Silicon accumulation occurred predominantly in the roots, being higher in treatments where the element was applied. It is concluded that the combination of B. aryabhattai and silicon is a promising strategy for producing seedlings more tolerant to drought. Tipo: TCC

2025-01-01T00:00:00Z