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| Registros recuperados: 889 | |
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| Lopes, Arthur Gabriel Caldas; Correia, Tiago Pereira da Silva; Taveira, Wesley Matheus Cordeiro Fulgêncio; Pereira, Gabriela Greice; de Souza, Alyne Ayla Rodrigues. |
| Convencionalmente a semeadura da soja é realizada distribuindo as sementes de forma individualizada e equidistante ao longo do sulco de semeadura. uma possível alternativa é a dosagem e distribuição agrupada de sementes, apenas rearranjando-as. Sendo assim, o objetivo do trabalho foi avaliar as características agronômicas da soja semeada com disco dosador de sementes convencional e agrupado sob diferentes velocidades operacionais. O delineamento experimental adotado foi o inteiramente casualizado em esquema fatorial 2 x 3, sendo dois arranjos de semeadura, agrupado e convencional, e três velocidades de semeadura 4,5; 5,2 e 6 km h-1, com quatro repetições cada. Os resultados evidenciam incremento produtivo entre 20,7% e 39,9% para o arranjo agrupado nas... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Glycine max; Spatial arrangement; Agronomic characteristics; Agronomic characteristics. |
| Ano: 2022 |
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/6721 |
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| González Baca, Guadalupe. |
| La soya (Glycine max L. Merr) es uno de los cultivos más importantes a nivel mundial. Las enfermedades de fin de ciclo (Cercospora sojina, Septoria glycines y Phakopsora pachyrhizi) son uno de los principales factores que limitan la producción de este cultivo en el mundo. En México aún no se ha estimado el impacto potencial de estos patógenos, por lo que en el presente trabajo se realizaron estudios epidemiológicos para determinar la prevalencia de cada uno de ellos, la dinámica de la enfermedad en el tiempo y su efecto en el rendimiento de diferentes cultivares de soya. Para cumplir con estos objetivos, tres cultivares de soya (Huasteca (H) 200, H-300 y H-400 fueron sembrados en tres fechas de siembra (FS) (04 de agosto, 23 de agosto y 28 de septiembre... |
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Palavras-chave: Glycine max; Cercospora sojina; Septoria glycines; Phakopsora pachyrhizi; Fitopatología; Maestría. |
| Ano: 2011 |
URL: http://hdl.handle.net/10521/630 |
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| González Baca, Guadalupe. |
| La soya (Glycine max L. Merr) es uno de los cultivos más importantes a nivel mundial. Las enfermedades de fin de ciclo (Cercospora sojina, Septoria glycines y Phakopsora pachyrhizi) son uno de los principales factores que limitan la producción de este cultivo en el mundo. En México aún no se ha estimado el impacto potencial de estos patógenos, por lo que en el presente trabajo se realizaron estudios epidemiológicos para determinar la prevalencia de cada uno de ellos, la dinámica de la enfermedad en el tiempo y su efecto en el rendimiento de diferentes cultivares de soya. Para cumplir con estos objetivos, tres cultivares de soya (Huasteca (H) 200, H-300 y H-400 fueron sembrados en tres fechas de siembra (FS) (04 de agosto, 23 de agosto y 28 de septiembre... |
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Palavras-chave: Glycine max; Cercospora sojina; Septoria glycines; Phakopsora pachyrhizi; Fitopatología; Maestría. |
| Ano: 2012 |
URL: http://hdl.handle.net/10521/586 |
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| Lourdes Rocha,Carla Maria; Vellicce,Gabriel Ricardo; García,María Gabriela; Pardo,Esteban Mariano; Racedo,Josefina; Perera,María Francisca; de Lucía,Adrian; Gilli,Javier; Bogado,Noelia; Bonnecarrère,Victoria; German,Silvia; Marcelino,Francismar; Ledesma,Fernando; Reznikov,Sebastián; Ploper,Leonardo Daniel; Welin,Bjorn; Castagnaro,Atilio Pedro. |
| Background Asian soybean rust (SBR) caused by Phakopsora pachyrhizi Syd. & Syd., is one of the main diseases affecting soybean and has been reported as one of the most economically important fungal pathogens worldwide. Knowledge of the genetic diversity of this fungus should be considered when developing resistance breeding strategies. We aimed to analyze the genetic diversity of P. pachyrhizi combining simple sampling with a powerful and reproducible molecular technique. Results We employed Amplified Fragment Length Polymorphism (AFLP) technique for the amplification of P. pachyrhizi DNA extracted from naturally SBR-infected plants from 23 production fields. From a total of 1919 markers obtained, 77% were polymorphic. The high percentage of... |
| Tipo: Journal article |
Palavras-chave: Asian soybean rust; Genetic variation; Glycine max; Molecular markers. |
| Ano: 2015 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582015000600009 |
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| Li,Ai Qin; Zhao,Chuan Zhi; Wang,Xing Jun; Liu,Zhan Ji; Zhang,Li Feng; Song,Guo Qi; Yin,Juan; Li,Chang Sheng; Xia,Han; Bi,Yu Ping. |
| Microsatellites, or simple sequence repeats (SSRs), in expressed sequence tags (ESTs) provide an opportunity for low cost SSR development. We looked for EST-SSRs in 403,511 ESTs (generated by 454 sequencing and representing 70,654 contigs and 52,082 singletons) from soybean globular stage embryos. Among 122,736 unique ESTs, 3,729 contained one or more SSRs. In total, 3,989 SSRs were identified including 304 mono, 1,374 di, 2,208 tri, 70 tetra, 13 penta and 20 hexanucleotide SSRs. Thirty three EST-SSRs were selected for primer design and polymorphism analysis using twenty soybean cultivars and one wild-type soybean. Successful amplification was obtained using 21 of these primer pairs, 11 of which detected polymorphisms in these soybean cultivars. These... |
| Tipo: Journal article |
Palavras-chave: 454 sequencing; EST; Glycine max; Polymorphism; SSR. |
| Ano: 2010 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582010000500006 |
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| Cortez,Jorge W.; Syrio,Marina G.; Rodrigues,Sonia A.. |
| ABSTRACT Soybean has significant economic importance in Brazil despite high production costs, making it necessary to increase the efficiency of mechanized harvest through the reduction of losses. Thus, this study aimed to evaluate the total losses in the mechanized soybean harvest as a function of the combination of header types, operating speeds, and geometry of collection frames. The study was carried out in a commercial farm in a randomized block design arranged in a 2 × 3 × 3 factorial with 10 replications, totaling 180 replications. The data were analyzed by descriptive statistics, analysis of variance, and quality control. The square frame can be used instead of the rectangular frame for the determination of the total losses. The increasing operating... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agricultural mechanization; Control charts; Glycine max. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162019000400482 |
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| Garcia,Luiz C.; Machado Júnior,Carlos R.; Bochnia,Giovana P.; Weirich Neto,Pedro H.; Raetano,Carlos G.. |
| ABSTRACT The objective of this study was to determine whether the combination of adjuvants to fungicides significantly alters the spray physicochemical characteristics, and potentiates the chemical control of foliar diseases, in that it may affect yield components in wheat (Triticum aestivum) and soybean (Glycine max). The experimental design was completely randomized for the spray physicochemical characteristics, and randomized blocks for the culture variables analyzed, with four treatments and five replications. Treatments consisted of control (no fungicide spraying in the shoot), with fungicides only in plant shoots, fungicides + 0.25% of the spray with adjuvant of methyl ester base of soybean oil, and fungicides + 0.05% of the spray with adjuvant... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Disease; Glycine max; Application technology; Triticum aestivum. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162016000601110 |
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| Cunha,João P. A. R. da; Barizon,Robson R. M.; Ferracini,Vera L.; Assalin,Marcia R.; Antuniassi,Ulisses R.. |
| ABSTRACT Pesticide drift is an issue in modern farming, mainly for crops under constant spraying as soybeans. This study aimed at assessing drift and pest control for aerial applications in soybean crops. Hydraulic nozzles and rotary atomizers, regulated to a wide spectrum of droplet sizes, sprayed thiamethoxam plus lambda-cyhalothrin using an agricultural aircraft Ipanema 202A at volume rate of 20 L ha−1. Treatments consisted of testing two devices: a rotary cage atomizer (Micronair AU 5000) with blade angles of 65° for larger droplets, and with angle of 55° for smaller ones; and a set of adjustable nozzles (Stol model) with deflector angle of 90° for smaller droplets, and with angle of 30° for larger ones. Drift was evaluated through quantification of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agricultural aviation; Crop protection; Exodrift; Glycine max. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162017000300493 |
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| Petry,Mirta T.; Basso,Laudenir J.; Carlesso,Reimar; Armoa,Maria S.; Henkes,Jonas R.. |
| ABSTRACT Evaluating the impacts of water stress on crop yield allows comparing irrigation management alternatives, aiming to ensure an economic return for the irrigated farms. Thus, the main objectives of this study were to model the soil water balance, deriving the crop coefficients, grain yield prediction, and economic return of soybean grown at different levels of water deficit and price quotations. The experiment was carried out under a rainout shelter, using four irrigation water managements. Irrigations were applied when the soil available water in the root zone reached 75%, 64%, 60%, and 50% of the total available water (TAW). Crop and soil parameters were monitored throughout the crop season. The SIMDualKc model was used to simulate the soil water... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Glycine max; Soil water balance; SIMDualKc model; Economic return. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000400526 |
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| Beutler,Amauri N.; Centurion,José F.. |
| Este trabalho teve o objetivo de avaliar a altura de plantas e a produção de matéria seca da parte aérea e das raízes de soja e arroz em dois teores de água (água retida a 0,05 e a 0,01 MPa) e três de resistência do solo à penetração (entre 0,25 e 6,46 MPa), determinados com o penetrômetro de anel dinamométrico. Foram utilizadas amostras de Latossolo Vermelho, distrófico, textura média (LVd) e Latossolo Vermelho, eutroférrico, textura argilosa (LVef), coletadas na profundidade de 0,0-0,20 m e compactadas em camadas de 0,03 m, em vasos de 0,20 m de altura e 0,25 m de diâmetro. A altura das plantas foi reduzida para valores de resistência à penetração superiores a 3,0 MPa. A menor produção de matéria seca da parte aérea das plantas ocorreu na resistência à... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Matéria seca; Glycine max; Oryza sativa. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162004000100016 |
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| Bischoff,Tábata Z.; Coelho,Silvia R. M.; Schoeninger,Vanderleia; Cassol,FLÁVIA D. R.; Prado,Naimara V. Do; Christ,Divair. |
| ABSTRACT: Soybean oil has many important components, but for its maintenance it is essential that there is an appropriate storage, temperature, relative humidity and optimum grain moisture content, because the oxidation reactions occur by improper storage, causing product deterioration. The objective of this study was to evaluate the main changes in the quality of soybean crude oil, from grain storage in temperature of 30°C and different relative humidity (59.6%, 67.0% and 76.0%). Soybean grains were packaged in plastic recipients, where saturated salt solutions were added so the grains reached the desired moisture. The analyses of moisture content, lipid, acidity index, color, antioxidant capacity, specific extension by absorption in the ultraviolet... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Extinction specific; Glycine max; Oxidation lipid; Relative humidity. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162016000601145 |
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| Garcia,Luiz C.; Weirich Neto,Pedro H.; Justino,Altair; Eurich,Joelcio; Souza,Nátali M.. |
| ABSTRACT The aim of this study was to analyze the influence of space between the base and intermediate base on quality of seed distribution with a horizontal seed plate. The experiment was carried out in 2012 at the Laboratory of Agricultural Mechanization of the State University of Ponta Grossa - PR, Brazil, using a sowing simulation device. The experimental design was completely randomized design with four treatments and seven replications. Treatments consisted of spaces (0, 1, 2, and 3 mm) between the base and intermediate base. Replications were defined by 250 spacing between seeds. Corn (Zea mays L.), soybean (Glycine max L. Merrill), and sorghum (Sorghum bicolor Moench) seeds were tested. The analyzed variables were faulty, multiple and acceptable... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Horizontal seed plate; Glycine max; Seeder-fertilizer machine; Sorghum bicolor; Zea mays. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162017000100128 |
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| Rosso,Ricardo B.; Peiter,Marcia X.; Robaina,Adroaldo D.; Ben,Luis H. Bahú; Mezzomo,Wellington. |
| ABSTRACT The need for crop rotation and profitability in lowland areas are the two main reasons for the introduction of soybean cultivation in the state of Rio Grande do Sul, Brazil. These areas have poor natural drainage, which impedes proper soybean growth. In this sense, this study aimed to assess the efficiency of using broad base ridges in comparison to the surface drainage for soybean cultivation in lowlands. The study was conducted during the 2014/2015 and 2015/2016 growing seasons in São João do Polêsine, RS, Brazil. The assessed drainage methods were the use of broad base ridges with different width dimensions (22.5, 15.0, and 7.5 m) and surface drainage. The results showed that the shoot dry matter and leaf area index have similar behavior. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ridge; Glycine max; Lowland. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000100045 |
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| Registros recuperados: 889 | |
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