https://ri.ufs.br/jspui/handle/riufs/2515 2026-05-01T09:45:08Z https://ri.ufs.br/jspui/handle/riufs/23786 Título: Eficiência de espécies do gênero Bacillus no controle biológico de Colletotrichum gloeosporioides Autor(es): Menezes, Pedro Vinícius Bertulino de Abstract: Anthracnose, caused by the phytopathogen Colletotrichum gloeosporioides, is one of the most economically significant diseases in agriculture, negatively impacting productive efficiency. Although chemical control is widely used due to its rapid efficacy, it is associated with issues such as the development of resistant strains and adverse environmental and social impacts. In this context, biological control emerges as a promising alternative, offering efficiency aligned with sustainability. Bacteria of the genus Bacillus spp. have been extensively studied for their ability to suppress phytopathogens. The present study aimed to evaluate the efficiency of Bacillus subtilis, Bacillus pumilus, and Bacillus velezensis in the biological control of C. gloeosporioides. Antagonism tests were conducted using direct pairing and volatile metabolite action, with confrontations at two time points: at phase 0, the bacteria and the pathogen were inoculated simultaneously, while at phase 24, the bacteria were inoculated 24 hours prior to the pathogen. Colony diameters and radii were measured to calculate inhibition rates. The results revealed a significant interaction between bacterial species and the application timing, with inhibition rates of up to 86.78% in direct pairing and 26.38% for volatile metabolites. These findings highlight the high biotechnological potential of Bacillus spp. in controlling C. gloeosporioides, emphasizing the importance of carefully selecting the bacterial strain and the appropriate application timing to maximize biological control efficiency. 2024-01-01T00:00:00Z https://ri.ufs.br/jspui/handle/riufs/23723 Título: Os meios de vida de pecuaristas familiares no município de Tobias Barreto/SE Autor(es): Alves, Emilly Karoline dos Santos 2024-01-01T00:00:00Z https://ri.ufs.br/jspui/handle/riufs/23695 Título: Aplicação de lodo de esgoto e ureia no consórcio maracujazeiro amarelo e algodoeiro Autor(es): Rocha, Luma Oliveira Abstract: Optimizing production systems is challenging in irrigated fruit farming, especially cultivating yellow passion fruit. Although it provides an alternative source of income for farmers, the crop has high nitrogen requirements and begins to produce only six to seven months after transplantation. When intercropped with short-cycle crops such as cotton and supplemented with alternative fertilization methods, like treated sewage sludge, these strategies show promising potential for maximizing the use of cultivated space with productive efficiency. Therefore, the growth and development of yellow passion fruit were evaluated when intercropped with cotton and fertilized with treated sewage sludge. The experimental design was a randomized block layout, with treatments consisting of two cultivation systems (intercropped and monoculture) and two nitrogen sources (urea and sludge), plus a control treatment where passion fruit was grown alone without fertilization. The treatments were replicated in four blocks, each plot corresponding to two passion fruit plants. Data were subjected to the Shapiro-Wilk normality test, followed by an analysis of variance and Tukey's test, using Rstudio® software. The types of fertilizers and intercropping with cotton did not affect the initial growth or water status of the passion fruit plants. However, the passion fruit's SPAD index and chlorophyll content were influenced by the type of fertilizer and intercropping. Additionally, the type of fertilizer and cultivation system affected the chemical and physical quality of the passion fruit fruits. 2025-07-18T00:00:00Z https://ri.ufs.br/jspui/handle/riufs/23464 Título: Qualidade de sementes de alface de uso doméstico comercializadas em Nossa Senhora da Glória - Sergipe Autor(es): Oliveira, Kassandra Souza de Abstract: The use of high-quality seeds under favorable conditions allows for satisfactory results, with a maximum germination rate in a shorter period of time, making it possible to obtain a population of normal, high-quality seedlings for planting. For lettuce production, the quality of the selected seeds is essential. Therefore, the objective of this study was to evaluate the quality of domestic-use lettuce (Lactuca sativa L.) seed cultivars sold in the municipality of Nossa Senhora da Glória, Sergipe. Six cultivars were used: Romana Branca de Paris, Crespa Simpson Sementes Pretas, Repolhuda Quatro Estações, Americana Grandes Lagos, Mônica SF 31, and Rainha de Maio Manteiga. The experimental design used was completely randomized, with six treatments for all analyzed variables, which included: moisture content, thousand seed weight, first count, germination percentage, germination speed index, and seedling length. Most of the seeds analyzed showed a germination percentage above 50%, except for the cultivars Crespa Simpson Sementes Pretas and Repolhuda Quatro Estações, which presented the lowest values. The cultivar Americana Grandes Lagos stood out, with 89.50% germinated seeds, in addition to showing higher values for most of the variables analyzed. The Germination Speed Index presented values between 0 and 10.88 across the treatments. For the variable seedling length, the cultivars Romana Branca de Paris, Americana Grandes Lagos, Mônica SF 31 and Rainha de Maio Manteiga did not show statistically significant differences, with values ranging from 2.64 mm to 3.46 mm. When analyzing the thousand seed weight (TSW), Romana Branca de Paris showed a higher average value, with 1.13 g, compared to the other treatments. Moisture content ranged from 3.96% to 5.84%, values close to the recommended level of 5.5% for commercially marketed lettuce seeds.The cultivars Americanas Grandes Lagos and Rainha de Maio Manteiga showed the best seed quality evaluation indices, as they achieved superior results for most of the variables analyzed. 2025-10-07T00:00:00Z