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Qualidade física e fisiológica de sementes de grão-de-bico tipo DESI Cv. BRS Hari durante o beneficiamento
(Universidade Estadual de Goiás, 2024-08-28)
Bacin, Diego Fernandes
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Nascimento, Warley Marcos
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http://lattes.cnpq.br/4870546315235649
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Silva, Patrícia Pereira da
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Freitas, Jôsie Cloviane de Oliveira
The present study aimed to evaluate the physical and physiological quality of chickpea seeds of the Desi cv. BRS Hari type, collected at nine different points of the seed processing process, and to verify seed retention in the different sieve classifications. The mechanized harvesting of chickpea seeds of the BRS Hari type occurred in the production field of Embrapa Hortaliças, located in Brasília-DF. Medium samples (6,000 g) were taken to the laboratory for analysis, which were formed by grouping and homogenizing single samples of each treatment. A total of ten treatments were obtained in different processing stages and machines. The seeds of each treatment underwent tests to evaluate their quality: physical purity, sieve retention, germination, electrical conductivity, emergence speed index, accelerated aging and sodium hypochlorite test. The data were subjected to analysis of variance and, once the assumptions were met and there was significance of the treatments, the Scott Knott test (p≤0.05) was performed using the Genes software. The results showed significant differences between the treatments in the germination test for the number of normal seedlings, number of abnormal seedlings and germination percentage. A significant difference was also observed between the treatments in the accelerated aging test in normal seedlings and dead seeds and in the emergence speed index test. Regarding sieve retention, a significant difference was observed for collection points, sieve types and for the interaction between seed collection point (PC) and sieve types (PE). Treatments T2 (seeds harvested after passing through the upper 12 mm sieve and before passing through the lower 7.5 mm sieve) and T5 (seeds collected at the mouth of the storage silo) were those that presented the best physical and physiological quality of chickpea seeds of the Desi CV. BRS Hari type. Treatments T3 and T4 presented germination rates below 80%. For sieve retention, the ones that presented the best results were the 4 to 9 mm sieves for processing chickpea seeds.
Toxicidade de novos Aminoaril-Fosforamídicos sobre Spodoptera frugiperda (Lepidoptera: Noctuidae) e seu potencial inimigo natural, Polybia occidentalis (Hymenoptera: Vespidae)
(Universidade Estadual de Goiás, 2024-09-26)
Quintino Neta, Francisca Xavier
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Jesus, Flávio Gonçalves de
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https://orcid.org/0000-0001-6881-5431
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http://lattes.cnpq.br/7529042187654040
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Araújo, Márcio da Silva
Phosphoramidates are a class of compounds that feature at least one -NR1R2 group (R1 and R2 = Alkyl, Aryl) directly attached to the phosphorus atom in their structures. Compounds from this class are mentioned as potential insecticidal agents. In this work, we generally discuss the synthesis of three new aminoaryl-phosphoramidic compounds and, under laboratory conditions, we evaluated the lethal toxicity of these compounds when applied topically to the pest insect Spodoptera frugiperda (Smith, 1797) (Lepidoptera: Noctuidae), commonly known as the "fall armyworm," as well as their lethal effect on an organism considered potentially beneficial to agriculture, including against this pest, the predatory wasp Polybia (Myrapetra) occidentalis (Olivier, 1792) (Hymenoptera: Vespidae), commonly known in Brazil as the "marimbondo-farinha-seca." S. frugiperda larvae used in the experiment were reared on an artificial diet, and adult wasps were collected from field colonies and maintained in the laboratory. The acute lethal effect (considered in our study up to 72 hours post topical application) of the phosphoramidate compounds on S. frugiperda larvae was significantly lower compared to the control treatment (a commercial product). However, this acute lethal effect was significantly higher on the beneficial insect (wasp). After the topical application of the phosphoramidate compounds, ad libitum food was offered to the insects, and under this condition, possible delayed neuropathy was assessed, inferred by insect mortality over time. For S. frugiperda larvae (considered up to 360 hours post topical application of the compounds), the LD50% for aminoaryl-phosphoramidic compounds 1, 2, and 3 were respectively 99.34, 28.10, and 80.28 μg/mg of larva. For P. occidentalis workers, the LD50% for phosphoramidic compounds 1, 2, and 3 were respectively 68.71, 60.98, and 74.06 μg/mg of wasp. Considering the rule that neurotoxic insecticides should promote rapid mortality of the pest, the phosphoramidates investigated in our study, compared to a commercial product with a similar mode of action, were not found to be suitable for future use in effective crop control. Moreover, they appear to be more toxic to the beneficial insect (wasp) compared to the pest.
Indução de resistência em plantas de grão-de-bico mediada por bacillus amyloliquefaciens e Bacillus subtilis à Spodopetera frugiperda (Lepidoptera : Noctuidae)
(Universidade Estadual de Goiás, 2025-04-04)
Oliveira, Jaiara Almeida de
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Jesus, Flávio Gonçalves de
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https://orcid.org/0000-0001-6881-5431
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http://lattes.cnpq.br/7529042187654040
;
https://orcid.org/0009-0008-3706-2658
Chickpea is a globally consumed legume, cultivated in tropical and subtropical climates. It's an annual herbaceous plant with low production numbers in Brazil, which still relies on imports to meet internal demand. This represents an opportunity for national producers, but chickpea production tends to face challenges related to biotic factors, such as pest attacks, particularly from Spodoptera frugiperda. This lepidopteran, in its larvais stage, feeds on leaves and shoots. The use of bacteria like Bacillus subtilis and Bacillus amyloliquefaciens can promote sustainable control against pest attacks. In addition to stimulating plant growth, they also induce plant defenses against herbivores. The study evaluated the efficiency of Bacillus subtilis (Bs) and Bacillus amyloliquefaciens (Ba) in managing S. frugiperda in chickpea cultivation. The experiment was conducted at LabMIP, located at the Federal Goiano Institute, Urutaí Campus – GO. The biological parameters of S. frugiperda, antixenosis, and nutritional indices were evaluated in a completely randomized design (CRD). The results showed that leaves from seeds inoculated with Bs were less attractive to caterpillars (p < 0.001). Caterpillar weight and length showed lower values in treatments with Ba (0.27 g; 2.29 cm) and Bs (0.24 g; 2.17 cm). The total life cycle was more prolonged in caterpillars fed chickpeas treated with Bs (33.9 days). Regarding nutritional indices, feeding with chickpea leaves, treated with and without bacteria, only influenced the ingested food parameter, ranging from 0.32 to 0.42 g. The inoculation of seeds with Bs and Ba negatively induced plant resistance in the biology of S. frugiperda.
Do golpe de 2016 à Base nacional Comum Curricular (BNCC): lutas pela educação
(Universidade Estadual de Goiás, 2025-09-01)
Souza, Suely Gonçalves de
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Gonçalves, Rodrigo Jurucê Mattos
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Costa Neto, Pedro Leão da
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Maciel, David
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Silva, Thiago Henrique Costa
This dissertation analyzes the National Common Curricular Base (BNCC) in the context of the post-2016 coup, investigating its implications for public education and the power relations that permeate Brazilian educational policy. Based on Marxist theory and Gramscian thought, the research observes the impact of the BNCC on the widening of educational inequalities, with an emphasis on the influence of the private sector. It starts with the guiding question: how does the BNCC contribute to the deepening of inequalities and the reemergence of contradictions in education, considering the relationship between public and private education? Based on this question, the general objective is to analyze the approaches of the BNCC in light of the contradictions of the capitalist system, reflecting on how the curricular document qualitatively impacts public education compared to private education. Specifically, the research seeks to examine Antonio Gramsci's thinking on education and hegemony, as well as the contributions of Dermeval Saviani, relating them to the neoliberal guidelines that permeate the BNCC. This research approaches the BNCC as a centralized instrument that, by standardizing public education, restricts pedagogical autonomy and imposes limitations on the critical development of students, favoring a segmented education that serves the interests of capital. The research also examines the process of commodification of education in Brazil and the consequences of the neoliberal policies renewed after the 2016 coup, such as the Spending Cap Law and the High School Reform, which impact funding levels and the quality of public education. Our hypothesis is that the BNCC, by standardizing public education and allowing multiple approaches to the private sector, intensifies social disparities in the educational field. The work highlights the importance of a critical and emancipatory education that counters capitalist logic, allowing the working class to have equal access to quality education. With this analysis, we intend to contribute to the debate on the contradictions and challenges of the Brazilian education system, proposing a reflection on the need for public policies that promote social justice and overcome structural inequalities.
Fé e devoção no movimento dos carreiros do Divino Pai Eterno: uma análise da romaria dos carros de bois
(Universidade Estadual de Goiás, 2025-06-24)
Silva, Maria Alves da
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Precioso, Daniel
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Quadros, Eduardo Gusmão de
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Caes, André Luiz
This study investigates the pilgrimage of the carreiros (ox cart drivers) in Trindade, Goiás—a century-old movement that has persisted despite the advent of modernity marked by motor vehicles and busy highways. The devotion to the Divine Eternal Father began in the old settlement of Barro Preto with the discovery of the medallion of the Holy Trinity, found by the farming couple Constantino Xavier and Ana Rosa around 1840. In light of hermeneutic anthropology, the motivations that lead the carreiros to Trindade were analyzed as a practice imbued with meaning for these groups. We also turned to ethnoscenology to understand the symbolism present in the ox cart parade, and to retrotopia, which offers carreiros and participants an anchor in time, reaffirming identities and values in a movement of resistance over the years. Data collection was carried out through participant observation, field diary notes, and collected images. This work concluded that faith and tradition are the main driving forces that lead the carreiros to continue participating in the pilgrimage annually.