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| Registros recuperados: 1.259 | |
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| abdelrhman, heba sabry. |
| This research aimed to use ultrasound at produce of strawberry under NFT hydroponics system in Giza governorate at one successful season (2017) through about 180days. The fresh fruit of strawberry were collected for each month separately on three months harvest. Ultrasound device designed and assembled locally to generate different frequencies, with constant power ≈ 40 W. The ultrasound wave with different frequencies of 20, 30 and 40 kHz, and exposure periods of 0, 60, 300 and 600 sec, and vertical distances of 0 – 30 - 60cm in; also performed an extensive statistical evaluation of the obtained data. The obtained results can showed that the use of ultrasound waves is suitable to improve in plant growth for strawberry in most properties especially when... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 2022 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/7073 |
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| Abich, Samuel Otieno; Gitau, Ayub Njoroge; Nyaanga, Daudi. |
| In order to cope with the demand for more food for the ever growing world population, it has become necessary to intensify farming.Agrivultural machines movement across the field increases soil compaction. The objective of this study was to rstablish the effects of soil compaction 0n selected soil physico-mechanical properties. Afactorial experiment in a completely randomised design was used. Tests were conducted on 18 plots to investigate the effect of five tractor wheel pass treatments (1, 2, 3, 4, 5) and a no whool treatment on bulk density, penetration resistance, soil cohesion, angle of internal friction and soil shear strength at three depths (0 -20, 20 - 30 and 30 - 40 cm) with three replications per plot. The results showed that increasing the... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 2022 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/8241 |
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| Acevedo Barona,Marco Antonio; Silva Díaz,Rubén José; Perdomo Rojas,Rosaura Desirée; Pérez Almeida,Iris Betzaida; Álvarez Parra,Rosa María; Torres Angarita,Orlando José. |
| Abstract Performance tests in múltiple locations are essential to study the genotype x-environment interaction, as well as to identify superior genotypes and testing locations. The objective of this study was to evaluate the adaptability and stability of rice hybrids and inbred varieties for grain yield. Six experiments were conducted in rice-producing areas of Venezuela using a randomized complete block design during the dry season of 2015 2016. The ANOVA detected significant differences for genotype, location, and genotype-by-location interaction, highlighting the hybrid by location interaction. The Lin and Binns model identified the hybrids ‘RHA-180' and ‘HL23035H' and the ‘Soberana Fl' variety as adapted and stable. In the GGE biplot model, the first... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Adaptability; GGE biplot; Lin-Binns; Stability; Oryza sativa L. |
| Ano: 2022 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122022000100073 |
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| Acosta-Chaparro,Andrés; Sánchez-Valencia,Laura; Gómez-López,Diana Isabel; Gónzalez-Corredor,Juan David; Navas-Camacho,Raúl. |
| ABSTRACT Seagrass meadows have stood out for being very effective fixing atmospheric carbon, among others, due to their ability to produce plant biomass. Therefore, the values of shoot density (m2), biomass (cores) and carbon present in 12 locations with Thalassia testudinum at the Colombian Caribbean (La Guajira and San Andrés Island) were quantified. The biological samples were processed in laboratory until obtaining the values of aerial, underground and total dry weight, and the estimation of the carbon was stablishing from a ratio of 35 % of the dry biomass. Statistical tests were carried out to determine significant differences between the sites, highlighting the aerial biomass in La Guajira and the underground biomass in San Andrés. It was calculated... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Seagrass; Colombia; Biomass; Blue carbon.. |
| Ano: 2022 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612022000100137 |
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| Adebayo, Kehinde. |
| The study was carried out to experiment whether magnetic treatments of the irrigation water promote germination and yield of cowpea. Two magnetic flux densities of 1127.4G and 1071.5G (T1 and T2) were applied to treat irrigation water and a control treatment (Tc) which was non-magnetically treated water. The magnetic fields were generated through stationary magnets produced by neodymium and round-bar magnets within the treatment chambers. The cowpea seeds (IAR-48) were planted in buckets under transparent garden shed and irrigated with two magnetically treated water and non-magnetically treated water. A randomized complete block design experiment was used in this study and each of the three treatments was replicated five times. The results indicated that... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 2022 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/7993 |
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| Adesoji, Ogunlade Clement; Simeon, Jekayinfa Olayinka; B., Olaniyi A.. |
| Tranesterification reaction was carried out on raw Shea Butter Oil (SBO) and Palm Kernel Oil (PKO) to separate the ester from glycerol using ethanol in the presence of potassium hydroxide as catalyst. The properties of biodiesel (ethyl ester) obtained from varying proportions of diesel were experimentally determined and compared with that of conventional diesel. The fatty acid profile of the oil samples were determined using standard methods. Four blends (10, 20, 25 and 30%) of SBO and PKO by volume with diesel oil were produced and fuel properties determined include viscosity, relative density, specific gravity, flash, cloud and pour points. Mean values of the six fatty acids (palmitic, stearic, oleic, linoleic) obtained for shea butter and palm kernel... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Diesel; Shea–butter oil; Palm kernel oil; Transesterification; Biodiesel. |
| Ano: 2022 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5672 |
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| Afzalinia, Sadegh. |
| In this study, the effect of tillage and irrigation methods on energy use, energy indices, and greenhouse gas (GHG) emissions of grain corn production was evaluated. The research was conducted in the form of a split plot experimental design with three replicates in Fars province, Iran. Main plots were irrigation methods including surface irrigation (gated pipe), drip irrigation, and sprinkler irrigation. Tillage methods including no-till (NT), reduced tillage (RT), and conventional tillage (CT) were considered as sub plots in this research. Results showed that irrigation method had significant effect on energy use, output energy, energy indices, and GHG emissions of grain corn production, while tillage method had significant influence only on energy use,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Energy indices; Irrigation water; Output energy; Tillage methods. |
| Ano: 2022 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/6909 |
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| AGUIAR, M. S. de; PEREIRA, H. S.; SOUZA, T. L. P. O. de; FARIA, L. C. de; COSTA, J. G. C. da; MAGALDI, M. C. de S.; SOUZA, N. P. de; KNUPP, A. M.; ALMEIDA, V. M. de; CABRERA DIAZ, J. L.; MELO, C. L. P. de; WENDLAND, A.; POSSE, S. C. P.; ABREU, A. de F. B.; MARTINS, M.; ALBRECHT, J. C.; BRAZ, A. J. B. P.; MARANGON, M. A.; CARVALHO, A. J. de; MELO, P. G. S.; TRINDADE, N. L. S. R.; FARIA, J. C. de; SOUZA FILHO, B. F. de; MELO, L. C.. |
| A cultivar de feijoeiro-comum com grão rajado, BRS FS311, tem como destaques a alta produtividade, ciclo semiprecoce, arquitetura ereta e excelente qualidade comercial, com grãos maiores e aspecto visual adequado para o padrão rajado, aliados a um bom potencial produtivo, além da resistência à antracnose e moderada resistência à murcha de Fusarium. Com base no desempenho, a cultivar BRS FS311 é indicada para semeadura nos estados de Goiás, Mato Grosso, Tocantins, Maranhão, Bahia, Espírito Santo e no Distrito Federal (Região II), nas épocas de cultivo das águas e de inverno; e Paraná, Santa Catarina, São Paulo, Mato Grosso do Sul e Rio Grande do Sul (Região I), nas épocas das águas e da seca. |
| Tipo: Folhetos |
Palavras-chave: Feijão; Phaseolus Vulgaris; Melhoramento Genético Vegetal; Variedade Resistente; Beans; New variety; Plant breeding. |
| Ano: 2022 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1139289 |
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| AGUIAR, M. S. de; PEREIRA, H. S.; SOUZA, T. L. P. O. de; FARIA, L. C. de; COSTA, J. G. C. da; MAGALDI, M. C. de S.; SOUZA, N. P. de; KNUPP, A. M.; ALMEIDA, V. M. de; MELO, L. C.; CABRERA DIAZ, J. L.; MELO, C. L. P. de; WENDLAND, A.; POSSE, S. C. P.; ABREU, A. de F. B.; MARTINS, M.; ALBRECHT, J. C.; BRAZ, A. J. B. P.; MARANGON, M. A.; CARVALHO, A. J. de; MELO, P. G. S.; TRINDADE, N. L. S. R.; FARIA, J. C. de; SOUZA FILHO, B. F. de. |
| No Brasil, existem poucas cultivares registradas com grãos do tipo jalo. Nesse sentido, a cultivar BRS FS313 se destaca sobre às existentes no mercado devido à alta produtividade, excelente tamanho de grão, uniformidade e boas qualidades culinárias. A nova cultivar poderá contribuir para favorecer o aumento da sustentabilidade na produção agrícola, de acordo com os Objetivos de Desenvolvimento Sustentável da ONU, Fome Zero e Agricultura Sustentável (ODS 2) e Consumo e Produção Responsáveis (ODS 12). |
| Tipo: Folhetos |
Palavras-chave: BRS FS313; Selo ODS 12; Selo ODS 2; Feijão; Phaseolus Vulgaris; Melhoramento Genético Vegetal; Variedade Resistente; Produtividade; Beans; New variety; Plant breeding. |
| Ano: 2022 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1149522 |
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| Ahmed, Maruf; Md Rashidur Rahman; Subroto Pandit; Md Arman Ali; Md. Sazzat Hossain Sarker. |
| A medium scale mechanical blackberry pulp extractor was designed, fabricated as well as evaluated various Performance indicator such as throughput of the pulp extractor, juice yield, extraction efficiency and extraction loss. The machine was designed based on the principle of compression and shear due to the action of screen cylinder and wing shaft. It is consisted of a strong frame, hopper, screen cylinder, wing shaft, prime mover and power transmission devices with main shaft. The data obtained from the design analysis of the components were used in the sizing, fabrication and assembling of the machine. The throughput of the pulp extractor, Pulp yield, extraction efficiency and extraction loss were 39.58 ±0.294 kg h-1. 77.49 ±1.18 %, 96.72 ±1.06 % and... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 2022 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/8159 |
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| Registros recuperados: 1.259 | |
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