Delacyr da Silva Brandão Junior's research while affiliated with Federal University of Minas Gerais and other places

Publications (38)

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is one of the main vegetable species used in organic production. However, studies and research in the organic area are scarce. This study aimed to evaluate the yield and quality of seeds of lettuce genotypes produced in two consecutive years under an organic management system. Two plantations were installed under open field conditions corresponding...
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Quick tests are essential tools to evaluate seed quality. The objective of this study was to adapt the methodology of tetrazolium test, by identifying the most suitable pre-conditioning parameters of imbibition temperature and duration, and tetrazolium solution concentrations, in order to assess the physiological quality of chickpea seeds. Also, th...
Article
Objetivou-se com este trabalho determinar aspectos morfológicos de frutos e da qualidade física e fisiológica de semente de cultivares de jiloeiro (SolanumgiloRaddi). O experimento foi realizado no Laboratório de Análises de Sementes do Instituto de Ciências Agrárias da Universidade Federal de Minas Gerais (LAS– ICA/UFMG). As cultivares foram Gigan...
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The objective of this study was to evaluate the production, and the physical and physiological quality of ‘BRS Aleppo’ chickpea seeds in the city of Montes Claros, Minas Gerais State, and their ideal harvest point. A randomized complete block design was used, in a 3x5 factorial arrangement, with three sowing periods (May 12th, June 23rd and July 22...
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The lima beans (Phaseolus lunatus L.) have rusticity and environment adaptability; have high levels of protein and important social aspect. The aim of this study was to evaluation the physical, physiological and morphological characteristics of the external seeds, which been collected in the Montes Claros-MG Municipal Market. The experiment has don...
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O objetivo do presente estudo foi avaliar a bioatividade de extratos aquosos de plantas medicinais em sementes de Phaseolus lunatus L. (feijão-fava) via comportamento fisiológico e fitossanitário. Foram utilizadas sementes de feijão-fava da variedade Anduzinha tratadas com seis extratos aquosos de plantas medicinais a 5% (Ocimun gratissimum, Plectr...
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The objective of this work was to verify the presence of inhibitors of germination and vigor in different parts of the seed of Cutieira. Secondly, we evaluate the effects of the methods for breaking dormancy, as well as to identify and quantify the microflora in Cutieira seeds. In the preliminary phase of the research, using lettuce seeds as an ind...
Article
Local soil and climate conditions as well as management techniques used in maize cropping affect disease development. In the present study, the incidence and severity of diseases were evaluated in four maize genotypes cultured in three management systems with different technology levels. We tested two landrace varieties from the North of Minas Gera...
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Apesar das variedades crioulas favorecerem a autonomia no processo produtivo na agricultura familiar, tem-se observado o seu abandono ao elevar-se o nível tecnológico empregado na lavoura, acreditando-se que apenas os cultivares modernos apresentam retorno econômico. Dessa forma, o objetivo deste trabalho foi verificar a influência de diferentes si...
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As sementes de gergelim apresentam propagação via seminífera, sendo necessária, a utilização de sementes de elevada qualidade. Portanto, o objetivo do estudo foi avaliar o potencial fisiológico de sementes de gergelim preto conforme posição na haste da planta e regime de luz. As sementes foram colhidas em diferentes pontos da haste da planta (basal...
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The aim of this study was to analyze, under the energetic point of view, the cultivation of corn in three management systems (low, medium and high-tech), using two landrace varieties ('Argentino' and 'BR da Várzea'), a double hybrid cultivar (SHS 4080) and a simple hybrid (IAC 8333). Five performance indicators were used: energy efficiency, liquid...
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The objective of this study was to evaluate the sanitary and physiological quality of fourteen varieties of creole corn seeds in pre-and post-storage in packaging of polyethylene terephthalate (PET). Among the mycobiota observed Fusarium moniliforme (88%), Penicillium spp. (6,9%) and Aspergillus spp. (2,1%) had the highest incidence. After storage...
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propagação do girassol ocorre por via seminífera; portanto, faz-se necessária a utilização de sementes de elevada qualidade. O objetivo deste trabalho foi determinar a qualidade física, fisiológica e sanitária de sementes de diferentes genótipos de girassol. As sementes de dez genótipos de girassol foram avaliadas para determinar a sua qualidade, p...
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The purpose of this study was to evaluate the quality of black sesame seeds harvested at different times after sowing. The seeds used were derived from four different harvest times (122, 129, 136 and 143 days after sowing). The assessment of the quality of the seeds was determined by standard germination, first count germination, seedling length, e...
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O girassol (Helianthus annuus L.) encontra-se entre as quatro culturas de maior produção de óleo comestível no mundo, e destaca-se pela sua adaptação a diferentes condições edafoclimáticas. Objetivou-se com este estudo avaliar o desempenho agronômico de dez genótipos de girassol no norte de Minas Gerais. O estudo foi conduzido nas Fazendas Experime...
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Research into rock-flour have shown the potential of some of these residues in promoting the mineral enrichment of soils; a practice defined as stonemeal soil. Such practice aims to increase soil fertility and provide good productivity and greater agricultural sustainability. The present study had as objective to evaluate the growth of jatropha see...
Article
Research into rock-flour have shown the potential of some of these residues in promoting the mineral enrichment of soils; a practice defined as stonemeal soil. Such practice aims to increase soil fertility and provide good productivity and greater agricultural sustainability. The present study had as objective to evaluate the growth of jatropha see...
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Sewage sludge, waste from the stations of wastewater treatment, has high contents of organic matter and nutrients and, when stabilized, it presents enormous potential for agricultural use. This study aimed to evaluate the effect of doses of sewage sludge on growth and yield of castor bean. The experiment was conducted in Cambisol, using the cultiva...
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In recent years, the expansion of sunflower promoted a search for genetic material more competitive, and for seeds with a maximum physical, physiological and health quality. In the field, harvesting time and plant nutrition are essential in the expression of these qualities. With this objective, this research aimed to evaluate the physical and phys...
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In recent years, the expansion of sunflower promoted a search for genetic material more competitive, and for seeds with a maximum physical, physiological and health quality. In the field, harvesting time and plant nutrition are essential in the expression of these qualities. With this objective, this research aimed to evaluate the physical and phys...
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The present study aimed to characterize the water absorption curve in pinhão-manso seeds (Jatrophas curcas L.), for the method test-pattern, with seeds maintained in roll of filter paper humidified in distilled water. The experimental delineation was entirely randomized, in factorial outline 2 x 16, being 2 classes of seeds (live and dith), with 16...
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The aim of this study was to assess the effect of pre-germination treatments for overcoming dormancy in Butia capitata seeds. The experiment was conducted in a randomized blocks design, in a 3x3 factorial scheme (mechanical treatments x immersion substances), with 20 seeds per plot and four replications. For mechanical treatments, seeds with endoca...
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The objective of this work was to study the initial growth of Acacia mangium in coconut fiber "blanket" with a substrate of sewage sludge. The experimental design was of a randomized block with 13 treatments, three repetitions, in a factorial project (6 x 2 + 1), with 6 ratio of coconut fiber and aggregating residue, combined with presence and abse...
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The purpose of this work was to evaluate litter layer (soil conditioner) formed of coconut fiber and aggregating residue with different substrate in the initial growth of Acacia mangium Willd plants. A completely randomized block was utilized, with 13 treatments and three replications, in a factorial arrangement (6 x 2 + 1), with 6 proportions of f...
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The objective of this research was to evaluate the physical, physiological and sanitary quality of corn seeds of 17 maize varieties (landraces) before and after storage in PET bottles. The seeds were submitted to the following tests: physical purity, retention on sieves, weight of 1000 seeds, germination, seed moisture content, emergence in flowerb...
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The fruit "coquinho-azedo" (Butia capitata (Mart.) Beccari), has a great social and economic importance to the communities located close to its distribution areas. Biometric characteristics of fruit and seed are important for the distinction of species, for the formation of more uniform seed lots, for the studies of dispersion and seedling establis...
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O fruto do coquinho-azedo (Butia capitata (Mart.) Beccari) possui grande importância social e econômica para as comunidades que estão localizadas próximas a áreas de sua ocorrência. Características biométricas de frutos e sementes são importantes para a distinção de espécies, para a formação de lotes mais uniformes de sementes, para estudos de disp...
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The expansion of the areas for chickpea culture depends on the production of seeds of superior quality. In this study, it was evaluated the main physical, physiological and sanitary characteristics in seeds of six genotypes of chickpea produced in Montes Claros, North of Minas Gerais. The analyzed variables were the moisture content, the physical p...
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A cutieira (Joannesia princeps VELL.), possui enorme potencial madeireiro, medicinal e como oleaginosa. Torna-se prioridade a avaliação da qualidade das sementes, visando acelerar e uniformizar o processo germinativo desta espécie. O experimento foi desenvolvido visando a caracterização da curva de absorção de água nas sementes de cutieira. O delin...
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O cultivo do girassol (Helianthus annuus) vem se expandindo principalmente em virtude da qualidade do seu óleo. Entretanto, com a expansão da cultura, os problemas com plantas espontâneas têm aumentado significativamente. Diante disso, para se estabelecer métodos eficientes de controle é necessário entender a dinâmica das plantas espontâneas, por m...
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For the marketing of sunflower seeds due to meet the minimum standards and the purity of them can be affected by the choice of area, cultural and even the time and source of fertilizer used, increasing spending on processing and reducing the productivity of seeds. The objective of this study was to evaluate the physical quality and productivity of...
Article
It was objectified, in this work the standardization of the germination test with relationship to the temperature and the removal of the tegument for the evaluation of the seeds of pinhão-manso (Jatropha curcas L). For so much, the germination test was accomplished with four repetitions of 25 seeds for each treatment. The treatments was arranged in...
Article
Several fruits of native species of semi-arid region have great potential for commercialization, and among them there is the Spondias tuberosa. However, commercial cultivation of this species is limited by the difficulty of obtaining seedlings mainly depending on the dormancy of its seeds. Thus, the purpose of this study was to evaluate the seeds o...
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Vários frutos de espécies nativas da região semiárida possuem grande potencial de comercialização, dentre eles destaca-se o umbuzeiro (Spondias tuberosa, Arr. Câmara). Entretanto, cultivos comerciais desta espécie são limitados pela dificuldade da obtenção de mudas, em função principalmente da dormência de suas sementes. Desta forma, o objetivo do...
Article
It was objectified, in this work the standardization of the germination test with relationship to the temperature and the removal of the tegument for the evaluation of the seeds of pinhao-manso (Jatropha curcas L). For so much, the germination test was accomplished with four repetitions of 25 seeds for each treatment. The treatments was arranged in...
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The aim of this work was to evaluate the physiological and sanitary quality of seeds obtained from mature fruits collected in the soil and in "fava d'anta" plants. Dimorphandra mollis constitutes an endangered medicinal species native to cerrado and presents fruits rich in rutin. The experimental design was completely randomized, with 10 replicates...
Article
During the germination process, the impermeability of the tegument and the humidity of the substratum they influence the reidratação of the seeds, metabolic activation and consequent growth of your embryonic axis. Therefore, the present work was led with the objective of evaluating the effect of the removal of the tegument in the germination and vi...
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The objective this work was evaluate the effect of different coverings plants on the physiological quality seeds of bean in no-tillage system in Diamantina – MG. The experiment was installed in the Campus II of UFVJM, in a Neossolo Quartzarênico Órtico típico, in blocks randomized design, with ten treatments and four replicates. The treatments were...

Citations

... Production (g plant -1 ) UFU-199#2#1#1 Considering 70,000 plants ha -1 , seed yield is 476 kg ha -1 without defoliation and 378 kg ha -1 with defoliation. The yield of lettuce seeds without plant defoliation was higher than the mean yield (368 kg ha -1 ) reported by Souza et al. (2019). According to Viggiano (1990), seed yield can range from 372 to 1,179 kg ha -1 , depending on the cultivar, production location, and climate conditions. ...
... The Tetrazolium viability test is a useful tool for seed quality determinations. Due to lack of seed testing procedures for some native species, to adjust concentrations of the agent used, staining time, or seed pre-treatment, turns necessary (34). The chosen methodology resulted to be adequate for viability assessment of M. ephedroides seeds. ...
... Seu centro de origem é a África, mas no Brasil é bastante popular, principalmente nos estados de Minas Gerais, São Paulo, Rio de Janeiro, Espírito Santo e Goiás. A cultura apresenta destaque econômico, nutricional, medicinal e social (Da silva et al;2020;Martins et al;. ...
... A pequena produção brasileira, quase que inexistente, é insuficiente para atender a demanda do mercado interno necessitando também importar de outros países como Argentina e México (ARTIAGA et al., 2015;NASCIMENTO et al., 2016;AVELAR et al., 2018). Além disso, é uma leguminosa produzida principalmente na região Sul do Brasil, por suas temperaturas mais baixas. ...
... In spiteof the use of non-saline and saline water for the irrigation of yellow passion fruit, the seeds of plants that received NPK fertiliser presented more SIG, which is possibly due to the better nutritional conditioning of plants, which positively reflects on seed quality. Barbosa et al. (2011) observed an increase in the SIG seed bean along with the increase of doses of N, as well as Silva et al. (2011) working with P, also found increasing SIG in Sunflower culture (Helianthus annuus L.). The seeds produced from plants irrigated with saline water and without fertilising NPK, showed a reduction of SIG, with increased levels of bio-fertiliser applied (Figure 2A). ...
... The partly opposing findings for germination after seed maturation may result from the inconsistent conditions the seeds were stored during maturation. Araújo et al. (2001), Magalhães et al. (2007), and Lopes et al. (2009) stored the seeds under controlled conditions with 10°C, 22.5°C, 25°C respectively. Only Cavalcanti et al. (2002a) stored the seeds under ambient conditions in dry soil, which comes close to natural conditions seeds encounter in the Caatinga. ...
... As suggested by some researchers, the ideal value of this index for a wide range of forest and fruit species should be lower than or equal to 6 in order for a plant to be considered in balance or of a suitable quality [21,28,99,100]. In addition, a low H/D value is associated with more robust plants with a higher probability of field survival, especially in areas with strong winds, landslides, drought, and salinity [14,100,101]. This is also true for container plants [102]. ...
... Plant height was not influenced by the evaluated factors, showing a mean of 110.6cm. Nobre et al. (2012), when carrying out tests with different cultivars in the North of Minas Gerais, and Dalchiavon et al. (2016), when carrying out tests with different cultivars in the Chapadão de Parecis region in the state of Mato Grosso, reported means that were higher than those observed in this study, ranging from 170.0 to 200.0cm and from 142.0 to 198.5 cm, respectively. According to Dalchiavon et al. (2016), the smallest plant height in the sunflower facilitates the crop management and reduces the losses in mechanized harvesting. ...
... A variedade Canção diferiu estatisticamente das anteriormente citadas, sendo esta então a que obteve menor valor de sementes germinadas no primeiro dia de contagem (86%). Advíncula et al. (2015) avaliando a qualidade fisiológica de diferentes variedades de feijão-fava, observaram que a variedade orelha de vó, foi a que dentre as avaliadas apresentou pior desempenho para o parâmetro de primeira contagem de germinação, a qual atingiu valores de apenas 65% na primeira contagem, comportamento contrário ao encontrado neste trabalho, como mencionado anteriormente, essa variedade obteve valor igual a 98% na primeira contagem de germinação. Entretanto, apesar deste parâmetro relaciona-se como um avaliador da qualidade fisiológica de sementes, é recomendável que outras avaliações também sejam realizadas para que assim seja determinado com maior confiabilidade a qualidade das sementes. ...
... Currently the agricultural recycling is the most important destination for sewage sludge, once the material is rich in nutrients, consequently an excellent organic fertilizer (CONTIN et al., 2012), and has shown to increase production on several crops (SILVA et al., 2010). Sewage sludge can improve soil fertility by increasing CTC when incorporated into the soil, reducing concentrations of exchangeable aluminum and as a source of macro and micronutrients for plants (PRADO and CUNHA, 2011). ...